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Start Over Author "Balasa A" Topic neurology (clinical)
133 results on '"Balasa A"'

1. Cerebellar and subcortical atrophy contribute to psychiatric symptoms in frontotemporal dementia

Author

Bussy, A., Levy, J., Best, T., Patel, R., Cupo, L., Van Langenhove, T., Nielsen, J., Pijnenburg, Y., Waldö, M., Remes, A., Schroeter, M., Santana, I., Pasquier, F., Otto, M., Danek, A., Levin, J., Le Ber, I., Vandenberghe, R., Synofzik, M., Moreno, F., de Mendonça, A., Sanchez‐Valle, R., Laforce, R., Langheinrich, T., Gerhard, A., Graff, C., Butler, C., Sorbi, S., Jiskoot, L., Seelaar, H., van Swieten, J., Finger, E., Tartaglia, M., Masellis, M., Tiraboschi, P., Galimberti, D., Borroni, B., Rowe, J., Bocchetta, M., Rohrer, J., Devenyi, G., Chakravarty, M., Ducharme, S., Esteve, A., Nelson, A., Bouzigues, A., Heller, C., Greaves, C., Cash, D., Thomas, D., Todd, E., Benotmane, H., Zetterberg, H., Swift, I., Nicholas, J., Samra, K., Russell, L., Shafei, R., Convery, R., Timberlake, C., Cope, T., Rittman, T., Benussi, A., Premi, E., Gasparotti, R., Archetti, S., Gazzina, S., Cantoni, V., Arighi, A., Fenoglio, C., Scarpini, E., Fumagalli, G., Borracci, V., Rossi, G., Giaccone, G., Di Fede, G., Caroppo, P., Prioni, S., Redaelli, V., Tang‐Wai, D., Rogaeva, E., Castelo‐Branco, M., Freedman, M., Keren, R., Black, S., Mitchell, S., Shoesmith, C., Bartha, R., Rademakers, R., Poos, J., Papma, J., Giannini, L., van Minkelen, R., Nacmias, B., Ferrari, C., Polito, C., Lombardi, G., Bessi, V., Veldsman, M., Andersson, C., Thonberg, H., Öijerstedt, L., Jelic, V., Thompson, P., Lladó, A., Antonell, A., Olives, J., Balasa, M., Bargalló, N., Borrego‐Ecija, S., Verdelho, A., Maruta, C., Ferreira, C., Miltenberger, G., do Couto, F., Gabilondo, A., Gorostidi, A., Villanua, J., Cañada, M., Tainta, M., Zulaica, M., Barandiaran, M., Alves, P., Bender, B., Wilke, C., Graf, L., Vogels, A., Vandenbulcke, M., Van Damme, P., Bruffaerts, R., Poesen, K., Rosa‐Neto, P., Gauthier, S., Camuzat, A., Brice, A., Bertrand, A., Funkiewiez, A., Rinaldi, D., Saracino, D., Colliot, O., Sayah, S., Prix, C., Wlasich, E., Wagemann, O., Loosli, S., Schönecker, S., Hoegen, T., Lombardi, J., Anderl‐Straub, S., Rollin, A., Kuchcinski, G., Bertoux, M., Lebouvier, T., Deramecourt, V., Santiago, B., Duro, D., Leitão, M., Almeida, M., Tábuas‐Pereira, M., Afonso, S., Engel, A., Polyakova, M., Erasmus MC other, Neurology, Radiology & Nuclear Medicine, Clinical Genetics, GENetic Frontotemporal dementia Initiative (GENFI), Lombardi, Gemma, Bessi, Valentina, Veldsman, Michele, Andersson, Christin, Thonberg, Hakan, Öijerstedt, Linn, Jelic, Vesna, Thompson, Paul, Langheinrich, Tobias, Lladó, Albert, Antonell, Anna, Olives, Jaume, Balasa, Mircea, Bargalló, Nuria, Borrego-Ecija, Sergi, Verdelho, Ana, Maruta, Carolina, Ferreira, Catarina B, Miltenberger, Gabriel, do Couto, Frederico Simões, Gabilondo, Alazne, Gorostidi, Ana, Villanua, Jorge, Cañada, Marta, Tainta, Mikel, Zulaica, Miren, Barandiaran, Myriam, Alves, Patricia, Bender, Benjamin, Wilke, Carlo, Graf, Lisa, Vogels, Annick, Vandenbulcke, Mathieu, Van Damme, Philip, Bruffaerts, Rose, Poesen, Koen, Rosa-Neto, Pedro, Gauthier, Serge, Camuzat, Agnès, Brice, Alexis, Bertrand, Anne, Funkiewiez, Aurélie, Rinaldi, Daisy, Saracino, Dario, Colliot, Olivier, Sayah, Sabrina, Prix, Catharina, Wlasich, Elisabeth, Wagemann, Olivia, Loosli, Sandra, Schönecker, Sonja, Hoegen, Tobias, Lombardi, Jolina, Anderl-Straub, Sarah, Rollin, Adeline, Kuchcinski, Gregory, Bertoux, Maxime, Lebouvier, Thibaud, Deramecourt, Vincent, Santiago, Beatriz, Duro, Diana, Leitão, Maria João, Almeida, Maria Rosario, Tábuas-Pereira, Miguel, Afonso, Sónia, Engel, Annerose, Polyakova, Maryna, Esteve, Aitana Sogorb, Nelson, Annabel, Bouzigues, Arabella, Heller, Carolin, Greaves, Caroline V, Cash, David, Thomas, David L, Todd, Emily, Benotmane, Hanya, Zetterberg, Henrik, Swift, Imogen J, Nicholas, Jennifer, Samra, Kiran, Russell, Lucy L, Bocchetta, Martina, Shafei, Rachelle, Convery, Rhian S, Timberlake, Carolyn, Cope, Thomas, Rittman, Timothy, Benussi, Alberto, Premi, Enrico, Gasparotti, Roberto, Archetti, Silvana, Gazzina, Stefano, Cantoni, Valentina, Arighi, Andrea, Fenoglio, Chiara, Scarpini, Elio, Fumagalli, Giorgio, Borracci, Vittoria, Rossi, Giacomina, Giaccone, Giorgio, Di Fede, Giuseppe, Caroppo, Paola, Tiraboschi, Pietro, Prioni, Sara, Redaelli, Veronica, Tang-Wai, David, Rogaeva, Ekaterina, Castelo-Branco, Miguel, Freedman, Morris, Keren, Ron, Black, Sandra, Mitchell, Sara, Shoesmith, Christen, Bartha, Robart, Rademakers, Rosa, Poos, Jackie, Papma, Janne M, Giannini, Lucia, van Minkelen, Rick, Pijnenburg, Yolande, Nacmias, Benedetta, Ferrari, Camilla, Polito, Cristina, Bussy, Aurélie [0000-0001-6695-9941], Nielsen, Jørgen E [0000-0003-0453-5582], Borroni, Barbara [0000-0001-9340-9814], Bocchetta, Martina [0000-0003-1814-5024], Devenyi, Gabriel A [0000-0002-7766-1187], Apollo - University of Cambridge Repository, and Amsterdam Neuroscience - Neurodegeneration

Subjects
C9orf72 Protein, Radiological and Ultrasound Technology, Medizin, frontotemporal dementia, Neurology, Frontotemporal Dementia, Cerebellum, Humans, magnetic resonance imaging, genetics, neuropsychiatry, Radiology, Nuclear Medicine and imaging, Human medicine, ddc:610, Neurology (clinical), Atrophy, Anatomy, genetics [Frontotemporal Dementia], genetics [C9orf72 Protein]
Abstract

Funder: Alzheimer Society of Canada; Id: http://dx.doi.org/10.13039/501100000143, Funder: Weston Brain Institute; Id: http://dx.doi.org/10.13039/100012479, Funder: Fonds de Recherche du Québec ‐ Santé, Funder: Canadian Institutes of Health Research; Id: http://dx.doi.org/10.13039/501100000024, Funder: NIHR Rare Diseases Translational Research Collaboration, Funder: Deutsche Forschungsgemeinschaft; Id: http://dx.doi.org/10.13039/501100001659, Recent studies have reported early cerebellar and subcortical impact in the disease progression of genetic frontotemporal dementia (FTD) due to microtubule-associated protein tau (MAPT), progranulin (GRN) and chromosome 9 open reading frame 72 (C9orf72). However, the cerebello-subcortical circuitry in FTD has been understudied despite its essential role in cognition and behaviors related to FTD symptomatology. The present study aims to investigate the association between cerebellar and subcortical atrophy, and neuropsychiatric symptoms across genetic mutations. Our study included 983 participants from the Genetic Frontotemporal dementia Initiative including mutation carriers and noncarrier first-degree relatives of known symptomatic carriers. Voxel-wise analysis of the thalamus, striatum, globus pallidus, amygdala, and the cerebellum was performed, and partial least squares analyses (PLS) were used to link morphometry and behavior. In presymptomatic C9orf72 expansion carriers, thalamic atrophy was found compared to noncarriers, suggesting the importance of this structure in FTD prodromes. PLS analyses demonstrated that the cerebello-subcortical circuitry is related to neuropsychiatric symptoms, with significant overlap in brain/behavior patterns, but also specificity for each genetic mutation group. The largest differences were in the cerebellar atrophy (larger extent in C9orf72 expansion group) and more prominent amygdalar volume reduction in the MAPT group. Brain scores in the C9orf72 expansion carriers and MAPT carriers demonstrated covariation patterns concordant with atrophy patterns detectable up to 20 years before expected symptom onset. Overall, these results demonstrated the important role of the subcortical structures in genetic FTD symptom expression, particularly the cerebellum in C9orf72 and the amygdala in MAPT carriers.

Published
2023

2. Association of Time of Day With Outcomes Among Patients Triaged for a Suspected Severe Stroke in Nonurban Catalonia

Author

Álvaro García-Tornel, Alan Flores, Mikel Terceño, Pedro Cardona, Sergi Amaro, Meritxell Gomis, Josep Zaragoza, Jerzy Krupinski, Manuel Gómez-Choco, Natalia Mas, Dolores Cocho, Esther Catena, Francesc Purroy, Matias Deck, Marta Rubiera, Jorge Pagola, David Rodriguez-Luna, Jesús Juega, Noelia Rodríguez-Villatoro, Carlos A. Molina, Cristina Soro, Xavier Jimenez, Mercè Salvat-Plana, Antoni Dávalos, Tudor G Jovin, Sonia Abilleira, Natalia Pérez de la Ossa, Marc Ribó, Estela Sanjuan, Katherine Santana, Olga Maisterra, Estevo Santamarina, Marian Muchada, Sandra Boned, Antonio Palasi Franco, Marta Olivé Gadea, Matías Deck, Manuel Requena, Victoria Sala, Lucía Muñoz, Mónica Millán, Elena López-Cancio, Laura Dorado, María Hernández-Pérez, Jordi Ciurans, Daniela Samaniego, Tamara Canento, Lorena Martin, Anna Planas, Joaquin Broto, Agustín Sorrentino, Martí Paré, Nuole Zhu, Alicia Garrido, Laia Grau, Ane Miren Crespo, Silvia Presas, Miriam Almendrote, Alba Ramos, Giuseppe Lucente, Lourdes Ispierto, Manuel Lozano, Juan Luis Becerra, Marta Jiménez, Dolores Vilas Rolán, Nicolas Guanyabens, Josep Sanchez-Ojanguren, Alicia Martínez-Piñeiro, Sara Forcén, Mireia Gea, Marta Álvarez, Anna Ramos, Manuel Domínguez Lizarbe, Rubio Guerra, Irene Bragado, Andrea Arbex, Luis Rodríguez, Alejandro Bustamante, Pere Cardona Portela, Helena Quesada García, Blanca Lara Rodríguez, Nuria Cayuela, Julia Miró, Clara Marzal, Andrés Paipa, Sergio Campoy, Ana Núñez, Pablo Arroyo, Sarah Besora, Vanessa Adell, Jaume Campdelacreu, Montse Alemany Martí, Belén González, Laura Bau Vila, Marta Fiter Crespo, Anna Berbel, Ma. Cristina Villaescusa Urbaneja, Núria Guillen, Nuria Vidal, Patricia Valentina Vérez Santamaria, Diego Herrero Navarro, Marta Simó, Mercedes Falip, Elisabeth Matas, Neus Mongay Ochoa, Ariadna Gifreu, Albert Muñoz, Lucía Romero, Eduard Portell, Guillermo Hernández Perez, F. Ruiz Esteve, Silvia Teixidor, Augusto Salazar Talavera, Roser Gómez, Xabier Urra Nuin, Martha Vargas, Ángel Chamorro, Laura Llull, Arturo Renú, Salvatore Rudilosso, Raquel Sánchez del Valle, Helena Ariño, Nuria Solà, Delón la Puma, Francisco Gil, Juan Bernardo Gómez, Nuria Matos, Neus Falgàs, Sergi Borrego, Almudena Sánchez, Mircea Balasa, Carmen Montejo, Mar Guasp, David Reyes, Pablo Sánchez Cervilla, Jose Miguel Contador, Victor Augusto Vera Monge, Oscar Ramos, Alejandro Rodríguez, Ana Rodríguez Campello, Gemma Romeral Ballester, Mireia Llop Trujillano, Eva Giralt Steinhauer, Elisa Cuadrado Godia, Angel Javier Ois Santiago, Jordi Jimenez Conde, Joan Martí Fábregas, Daniel Guisado, Luís Prats, Pol Camps, Raquel Delgado, Alejandro Martínez Domeño, Rebeca Marín, David Cànovas, Jordi Estela, Marta Ros, Sonsoles Aranceta, Jordi Espinosa, Marta Rubio, Cristina Lafuente, Oriol Barrachina, Alicia Anguita, Anna Reverter, Carmen García, Gemma Sansa, Mariona Hervas, Monica Crosas, Tania Delgado, Dra Sonia Huertas Folch, Gemma Muñoz Gamito, Josep Trenado Alvarez, Teresa Subirana, Jessica Molina, Laura Comes Romero, Gemma Guardia Valls, Miriam Jover, Javier Joaquín Sotova, Sonia Mª García Sánchez, Sebastian Valenzuela, Juan José Mengual, M. Àngels Font, Mª Isabel Gómez Ruiz, Irati Zubizarreta, Susana Fernández González, Laura Gubieras, Carmen E. Cobos, Luis Mena Romo, Nuria Caballol, Luis Cano, Joaquín Serena Leal, Yolanda Silva Blas, Irene Bragado Trigo, Saima Bashir Viturro, Laura Pardo Albiñana, Montserrat Reina Garrido, Carla Marco Cazcarra, Karol Enrique Uscamaita, Fabian Márquez, Cristina Coll, Mar Irida Lloret Villlas, Berta Solano Vila, Berta Alemany Perna, Daniel López Domínguezl, Mercedes de Lera, Anna Cots Foraster, Urszula Bojaryn, Ikram Benabdelhak, Gerard Mauri Capdevila, Jordi Sanahuja Montesinos, Daniel Vázquez, José Vicente Hervás, Cristina González, Alejandro Quílez, Mikel Vicente Pascual, María Ruiz, Yolanda Riba, M. Pilar Gil Villar, Cristina García, Xavier Ustrell Roig, Mònica Baldrich Mora, Anna Pellisé Guinjoan, Judit Borras, Alba Mañé Martínez, Rafael Marés, Jaume Viñas i Gaya, Laia Seró, Paula Rodríguez, Gislaine Castilho, Angela Monterde Ortega, Silvia Reverté, Joan Josep Baiges, Gisela Martín Ozaeta, Sonia Escalante, Patricia Esteve Belloch, Iago Payo, Júlia Saura Salvado, Josep M Soler Insa, Ester Tio Vilamala, Josep Abos Navarro, Héctor Cruz Tabuenca, Tamara Canento Sánchez, Elisabet Roldán, Elsa Puiggrós Rubiol, Elisabet Franquet, Lidia Fuentes, Javier Donaire, Elena Martí, Laura Giménez, Junior Gil Vázquez, Eloisa Nieto Clara Gris Ambrós, Puri Rodríguez, José Félix Oletta, Pilar Pons Mellado, Bárbara Gómez, Vergilin Raileau, Oscar Pardina, Jordi Mercadal, María López-Diéguez, Pilar Pérez, Lourdes Gabarró, María Orriols, José Carlos Molina, Joan Josep Canet, Mireia Roca, Muriel Álvaro, Francesc Boneu, Georgina Giménez, Jaume Albà, Francesc Gibert, Jéssica Garcia, Patricia Barragan, Gustavo Jurado, Vanesa Pascual_Medicina Interna, Josep Sabaté Ortega, Joan Amaurys Martínez Solano, Víctor Fernández, Mónica Torres, Ana Belén Montero Alvaredo, Laura Redondo Parejo, Josep Maria Aragonés, Anna Bullón, Cora Loste, Paula González, Neker Bejarano, Francisco Sanchez, Gianni Lucchetti, Xavier Pla, Dr Javier Gimeno, Esteban Reynaga, Montse Barcons, Gabriel Celedón, Juan Ortiz, Dr Goran Anastasovski, Dr Oscar Mascaró, Dr Javier Diez de los Ríos, Meritxell Feliu, Anna Ribera, Cristhian Ruiz, Gerard Corominas, Dra Daniella Nunes, Claudia Roca, Nadina Latorre, Lizbeth Yataco, Maricelys Cruz, Nerea Blanco, Santiago Castejón, Claustre Pont Sunyer, Jordi Espinosa Garcia, Rodrigo Paz Martin, Albert de Luis Sanchez, Dolores Espinosa Vivas, Juan Valencia Molina, Planels Palome, Laia Tomas Chaume, Ares Villagrasa Vilella, Marco Bustamante, Anunciación Boltes, Fernando Rodríguez, Itziar Arrieta, Jordi Ciurans Molist, Barnés Andreu, Ernest Palomeras Soler, Nicolau Guanyabens Buscà, Manuel Daza López, Jordi Bigas Farreres, Virginia Casado Ruiz, Desiree Muriana Batiste, Mª Pilar Sanz Cartagena, Eulalia Cabot de Vega, Josep Bassa Real, Hector Pelaez Roman, César Socolich, Josep Mª Alonso Camp, Antonio Tomás Cano Orgaz, Mª Pilar Fossas Felip, Nicolás Morón, Sandra Bacca, Mauricio Molina, Francesc Casarramona, Lorena Elias, Muhammad Zidane Bukaei, Jose Antonio Martos Gutierrez, Judith Lopez Escuin, Cristina Olaizola, Yolexis López Vargas, Juan Jiménez Oyonarte, Rashida Soultana, Eduardo Sanjurjo Golpe, Esther Salvador, Guillem Vila, Marcos Serrano, Matilde Nuria López Claverol, Marian Lamolla, Miquel Amate, Adriana Rodriguez, Ruth Romero, Montgomery del Carpio, Ana Isabel Hernandez, Julián Martín, M Carmen Rosas, Antonio Nogueroles, Sorilandy Encarnación, Augusto Robles, Jose Antonio Herrera, Roger Gavilán, Toghrol Mameghani, Gastón Araujo, M.Angeles Garrido Morales, Enric Ramon Albert Segui, Eva Fernandez Climent, Francesc Paris Pujol, Mireia Judit Garrofé Seira, Lucía Gómez Pía, Fernando Salleres Nuñez, Cristina Aguar Peñalver, Cristina Vaz Lopes, Elisenda Ribera Tasa, Carmen Repullo Vilchez, Modesto Sánchez Zambrana, Beatriu Suescun Ribas, Inés Vilà Panés, Montserrat Vila Planavila, Alicia Vaqueiro Lorenzo, Meritxell Sabartés Guixes, Jorge Medina, David Sambrano, Javi Zamarreño, Carmen Pirela, Paola Vélez, Luis Cajamarca, Honey Pérez, Yarles Martínez, Jesus Alexander Gonçalves, Carles Regordosa, Claudia Mormeneo, Laura Griu, Maria Francia Colina, Enric Farik, Dolors Carrión Duch, Carles Badenas, Oscar Bernal, Núria Agramunt, Shyrlei Morales, Victoria Reynoso, Miguel Guerrero, Primitivo Romera Cid, Mònica Folqué, Claudia Pedroza, Adnan Hachem, Íñigo Soteras Martínez, Xavier Verdera García, Mercè López Amorós, Xavier Costa Subirós, Marta Cufí Benet, Cecile Van Eendenburg, Teresa Osuna, Dra Gina Santos, Dra Mireia Pallisera, Dr Lluís Gonzalo Oliva, Dra Gemma Sanchez, Dr Xavier Basurto, Dr Ludgi Vivoda, Dr Richard Van der Kleyn, Dra Laura Robles, Ana Cabanelas Barranco, Mª Cruz Almendros, Marc Pérez Oliveras, Amelia Fernández Álvarez, Maria Rybyeva, Antoni Viñas, Maria Barcons, Joaquim Danès Alberto Tavera, Pablo Burbano, Cintie López, David Cruz, Paula Bisbe, Nora Fernández, Juan Carlos Palacio, Eduardo Fraiz, Oriol Aguiló, Rollmy Amorodjo, John Velázquez, Elena Sánchez, Jaume Español, Judit Perez de Celis, Anna Coll, Glòria Díaz, Margarida Vergés i Sala, Mª Ángels Casas Capdevila, Yosmairy Yoselin Ferrini, Aitor Gorriz, Diego-Javier Cucurell Navarro, Dulce Velásquez, Jaume Pla Soler, Josep González, Julian David Higuera, Lina Cuellar, Liza Margarita Miniello, Lluis Pujol, Sorin Cracan, Mora Vives, M Angela, Lopez Lopez, Montse Gorchs Molist, Delofeu Anna, Silvia Solà Muñoz, Ferreres Yolanda, Carol Pujalte, Elisabeth Téllez Marín, Yolanda Font Casas, Sara Hernández Luque, Joaquim Mejias Sendra, Francesca Mellado Valero, Campos Escala, Galup De Lacanal, Lopez Diaz, Castillo Paramio, Català Estopà, Español Moreda, Calafell Majo, Carballo Almeida, Castro Naval, M Elena, Cregut Ruiz, Pere Lluis, Deulofeu Font, Fabregat Sanjuan, Joan Pere, Fontquerni Gorchs, Forés Bellés, Joan Antoni, Gomez Herrera, Juan Carlos, Hijazo Prades, Itzaina Torvisco, Marti Rovira, Obiols Gonzalez, Olive Cavero, Querol Gil, M Soledad, Rico Rodriguez, Rios Sambernardo, Ropero Molina, Jose Ramon, Sanchez Valero, Santos Arevalo, Maria Jose, Soto Garcia, Maria Angeles, Tebar Escribano, Torres Garcia, Pedro José, Verdes Carrion, M Isabel, Verge Lopez, Juan Jose, Lopez Canela, M Angeles, Lucas Guarque, Morales Alvarez, Jorge Arnulfo, Morell Fornieles, Subirats Gomez, Maria Teresa, Torello Masa, Miquel, Val Lopez, Maria Mercedes, Palmero Reyes, Juan Manuel, Rodriguez Forne, Ruana Turiel, Sanchez Gonzalez, Sebastia Gornals, Abrio Rico, Albert Gual Falip, Aznar Oliveros, Brugues Perotti, Calvet Molinero, Catells Franco, Corrales Medina, Daroca Miro, Duran Marquez, Feliu Pradas, Figueras Casanova, Garcia Tortajada, Grajera Gallego, Azahara del Mar, Las Arroyo, Dulcenombre de Jesus, Laserreta Sanz, Llambrich Vidal, Monllao Corral, Morales de la Cruz, Moreno Blanco, Orejuela Orgaz, Piñana Suazo, Pons Minguillon, Rodríguez Gómez, José Carlos, Rodriguez Pereira, Sedo Porcel, Anna, Sevil Villar, Sierra Lopez, Torres Romero, Trepat Calveres, Anna, Ventura Arnella, Acera Gil, M Teresa, Biesot Vico, Castro Galea, Rosa Maria, Escorcia Chafer, Juan Antonio, Gil Faure, Hernandez Luque, Jimenez Delgado, Mallafre Gay, M. Angel, Olivares Sanzo, Pubill Fondevila, Sabate Fort, Segovia Agámez, Antonio Carlos, Turata Longaretti, Valle Hernandez, Trayner Guixens, Aguilar Valor, Aguirre Alvarez, Alastrue Naval, Alferez Baquero, Alonso Marne, Aloy Orozco, Alvarez Colino, Alvarez Peñuela, Ameller Cirilo, Maria Vanessa, Andujar Guerrero, Estefania Remedios, Auladell Sillero, Azcarate Sorbet, Basany Genesca, Benavent Barduena, Benito Tudela, Blanch Pardo, Boluda Pla, Bonilla Gonzalez, Bru Serramalera, Burnat Andreu, Caballero Calvo-Rayo, Calvo Casellas, Camps Mombiela, Cano Bresme, Carcelen Fernandez, Caro Solà, Casasas Matavacas, Castanedo Bolado, Cerdeña Cortina, Abella Jane, Laia Collado Borrego, Colom Orri, Comellas Vilanova, Conillera Sole, Cots Torres, Cuchi Estepa, Marc de Sostoa Graell, Laura del Rio Lopez, Delgado Compte, Diaz Bueno, Diaz Maneiro, Andrea Lucia, Domenech Palau, M. Carme, Duran Carasso, Pablo Javier, El Abidi, Escoda Martin, Esteve Casanovas, Fernandez Perez, Ferre Quintero, Flores Escobar, Fontcuberta Abad, Fortes del Valle, Mª Luisa, Franco Quesada, Sara Maria, Franco Romero, Gallego Francisco, Gamiz Gala, Garcia Castañeda, Garcia Rodriguez, Casajuana Gemma, Gomez Arroyo, Gomez Girbau, Gonzalez Fernandez, Gonzalez Gonzalez, Gonzalez Lopez, Gual Obeso, Guerrero Blanco, Guillemas Roca, Guillermo Eudaldo, Sebastia Hernandez, Homar Covas, Hostench Alvarez, Huerta Royo, Ibañez Barcelo, Izquiero Cruz, Jaione Urdangarin Etxetxikia, Juárez Gimenez, Khlifi Alami, Laparra Gasco, Lara Moreales, Lasaosa Medina, Maria Lourdes, Lazaro Cava, Leon Berrar, López Maturana, Lopez Ramirez, López Romero, Lorente Marco, Lorenzo Martin, Lozano Casals, Lujan Nicola, Madrid Diaz, Jose Antonio, Maria Teresa Peris Morales, Marti Clemente, Martinez Castaño, David Natanael, Martinez Gamez, Martinez Gonzalez, Martinez Quesada, Maria de la Cabeza, Marzà Fusté, Melendo Lasheras, Miralles Mestre, Montserrat Puig Pastalle, Montserrate Vidal, Mora Mellado, Morales Ponce, Morera Cabre, Morera Vivet, Mundi Souza, Muñoz Quiles, Navea Rosa, Neira Iglesias, M Asuncion, Nuñez Manrique, Mª Pilar, Obiols Martinez, Pallares Reig, Partegas Torres, Pascual Berengueras, Perez Gamez, Perez Oset, Perez Restrepo, Maria Alejandra, Planas Yeste, Planells Mangado, Puertas Carbonell, Quinteiro Blanco, Rebollar Benavente, Recasens Fernandez, Reyes Gomez, Maria del Carmen, Roca Pou, Rodriguez Ferrer, Rodriguez Franco, Rodriguez Fuertes, Rodriguez Muñoz, Rodriguez Navarro, Roig Iniesta, Romero Gracia, Rovira Brunet, Rovira de Eugenio, Rubio Baena, Ruiz Llorens, Sala Llamazares, San Juan Alaez, Sanchez Segura, Santasusana Soldevilla, Sanz Salmeron, Segura Perez, Serra Balcells, Sorina Dumitras, Teixidor Montoya, Tena Vicente, Tierno Salinas, Ester Ines, Toledo Testa, Tomàs Figueras, Tomas Ruperez, Torrano Garcia-Penche, Torres Esparza, Vazquez Blanco, Vazquez De la Paz, Vazquez Gil, Vazquez Gonzalez, Vidal Meler, Vilalta Cots, Vilches Jimenez, Visser Fernandez, Viu Gavin, Vives Vives, Carmona Jimenez, Francisco Jose, Galobardes Vilches, Gonzalez Gomez, Jodar Manzanera, Marimon Cortes, Marrodan Orive, Martin Bosch, Martorell Lopez, Millares Roca, M Jesus, Miralles Guri, Muliterno Hernandez, Muñoz Oliva, Pons Pujol, Postius Conde, Prieto Arruñada, Quintana Mathé, Rosell Mata, Alvarin Alvarez, Arrufat Flores, Bañuelos Pago, Campo Vilar, Cardus Hidalgo, Castello Gil, Maria Gloria, Castrillo Montsesinos, Clave Garces, Comes Sanroma, Descalzo Sequi, Errando Ricol, Escudero Campillo, Maria del Mar, Fernandez Alvarez, Fernandez Gomez, Franch Espinosa, Freixes Graells, Garcia Plaza, Garcia-Marron Gallego, Hernandez Simancas, Jaraba Armas, Jimenez Ramos, Lopez Oganissian, Madrona Romero, M Rosa, Martinez Millan, Martínez Morón, Merchan Encinas, Moreno Jimenez, Muñoz Rico, Navarro Rodriguez, Nogales Ibañez, Rita Maria, Novillo Viera, Parella Torrabadella, Mari Alba, Pera Villar, Carla Montserrat, Rabella Miralles, Ramis Trilles, Ribera Ortiz, Sastre Perez, Soro Borrega, Tapia Fores, Tellez Bernad, Trenado Alvarez, Felix Martin, Herrero Perez, Lanau Fuster, Lopez Gomariz, Pardo Lozano, Quintana Altimiras, Ventosa Lopez, Almodovar Damian, Alvarez Monterroso, Arambudo Comas, Boullon Garzon, Burgos Capella, Campuzano Garcia, Maria Del Mar, Capdevila Olivas, Carre Marti, Clara Isabel, Carretero Bacaicoa, Cazorla Calderon, Chacon Osuna, Cortes Planas, Cortit Olio, Delhomme Estany, Fructuos Martinez, Garcia Lopez, Pascual Luis, Genis Amill Vallve, Gonzalez Muñoz, Hernaez Ventura, Lavernia Gimenez, Martin Rojo, Martínez Medina, Mayol Barrera, Mercader Pi, Merino Dalmau, Miguel Campodarbe, Moreno Sanchez, Francisco Javier, Penela Barrameda, Prieto Ajenjo, Rodriguez Pareja, Rodríguez Piñar, Rodriguez Tello, Romero Pereda, Sainz Saborido, Santacana Martin, Santos Martinez, Sierra Chavez, Turbau Torres, Vicente Domenech, Villena Esteo, Vives Pertegaz, Baena Gonzalez, Bagaria Pont, Beltran Sanchez, Bonet Alarcon, Borch Ballescà, Buhils Clanchet, Closa Garcia, Colomina Carril, Cristina Fernandez Sanchez, Edurne Judith Fernandez Toledo, Espases Rodriguez, Espert Resa, F Xavier, Fernández Sol, Gonzalez Lugo, Gracia Llesera, Herrada Lendinez, Juliench Liesa, Sandra Alicia, Lopez Ortega, Lopez Yuste, Lozano Villanueva, Lucia Sola Soto, Madrid Castellano, Megias Cano, Daniel Jesus, Montasell Ponce, Montesinos Sospedra, Moya Martinez, Muñoz Herrera, Ocaña Fernandez, Palau Bernal, Perez Sole, Ramon Carbonell, Ribas Lop, Rubio López, Rueda Lopez, Sabat Castaño, Sabata Lara, Salmerón Ramírez, Serra Creus, Serrano Dalmau, Sumasi Mainero, Gonzalo Gabriel, Torello Masa, Valencia Primo, Ana Maria Viñuales Muñoz, Josep Roig, and Verònica Hidalgo

Subjects
Advanced and Specialized Nursing, Neurology (clinical), Cardiology and Cardiovascular Medicine
Abstract

Background: We aim to assess whether time of day modified the treatment effect in the RACECAT trial (Direct Transfer to an Endovascular Center Compared to Transfer to the Closest Stroke Center in Acute Stroke Patients With Suspected Large Vessel Occlusion Trial), a cluster-randomized trial that did not demonstrate the benefit of direct transportation to a thrombectomy-capable center versus nearest local stroke center for patients with a suspected large vessel stroke triaged in nonurban Catalonia between March 2017 and June 2020. Methods: We performed a post hoc analysis of RACECAT to evaluate if the association between initial transport routing and functional outcome differed according to trial enrollment time: daytime (8:00 am –8:59 pm ) and nighttime (9:00 pm –7:59 am ). Primary outcome was disability at 90 days, as assessed by the shift analysis on the modified Rankin Scale score, in patients with ischemic stroke. Subgroup analyses according to stroke subtype were evaluated. Results: We included 949 patients with an ischemic stroke, of whom 258 patients(27%) were enrolled during nighttime. Among patients enrolled during nighttime, direct transport to a thrombectomy-capable center was associated with lower degrees of disability at 90 days (adjusted common odds ratio [acOR], 1.620 [95% CI, 1.020–2.551]); no significant difference between trial groups was present during daytime (acOR, 0.890 [95% CI, 0.680–1.163]; P interaction =0.014). Influence of nighttime on the treatment effect was only evident in patients with large vessel occlusion(daytime, acOR 0.766 [95% CI, 0.548–1.072]; nighttime, acOR, 1.785 [95% CI, 1.024–3.112] ; P interaction P interaction >0.1 for all comparisons). We observed longer delays in alteplase administration, interhospital transfers, and mechanical thrombectomy initiation during nighttime in patients allocated to local stroke centers. Conclusions: Among patients evaluated during nighttime for a suspected acute severe stroke in non-urban areas of Catalonia, direct transport to a thrombectomy-capable center was associated with lower degrees of disability at 90 days. This association was only evident in patients with confirmed large vessel occlusion on vascular imaging. Time delays in alteplase administration and interhospital transfers might mediate the observed differences in clinical outcome. Registration: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT02795962.

Published
2023

3. Loss of brainstem white matter predicts onset and motor neuron symptoms in C9orf72 expansion carriers: a GENFI study

Author

Pérez-Millan, Agnès, Borrego-Écija, Sergi, van Swieten, John C., Jiskoot, Lize, Moreno, Fermin, Laforce, Robert, Graff, Caroline, Masellis, Mario, Tartaglia, Maria Carmela, Rowe, James B., Borroni, Barbara, Finger, Elizabeth, Synofzik, Matthis, Galimberti, Daniela, Vandenberghe, Rik, de Mendonça, Alexandre, Butler, Chris R., Gerhard, Alexander, Ducharme, Simon, Le Ber, Isabelle, Santana, Isabel, Pasquier, Florence, Levin, Johannes, Otto, Markus, Sorbi, Sandro, Tiraboschi, Pietro, Seelaar, Harro, Langheinrich, Tobias, Rohrer, Jonathan D., Sala-Llonch, Roser, Sánchez-Valle, Raquel, GENFI The Genetic FTD Initiative, Ullgren, Abbe, Rollin, Adeline, Camuzat, Agnès, Esteve, Aitana Sogorb, Gabilondo, Alazne, Lladó, Albert, Benussi, Alberto, Brice, Alexis, Gorostidi, Ana, Verdelho, Ana, Arighi, Andrea, Antonell, Anna, Bertrand, Anne, Engel, Annerose, Vogels, Annick, Bouzigues, Arabella, Funkiewiez, Aurélie, Nacmias, Benedetta, Bender, Benjamin, Ferrari, Camilla, Wilke, Carlo, Heller, Carolin, Maruta, Carolina, Greaves, Caroline V., Timberlake, Carolyn, Ferreira, Catarina B., Prix, Catharina, Fenoglio, Chiara, Shoesmith, Christen, Polito, Cristina, Rinaldi, Daisy, Saracino, Dario, Cash, David, Thomas, David L., Tang-Wai, David, Duro, Diana, Rogaeva, Ekaterina, Scarpini, Elio, Wlasich, Elisabeth, Buratti, Emanuele, Todd, Emily, Premi, Enrico, do Couto, Frederico Simões, Miltenberger, Gabriel, Lombardi, Gemma, Rossi, Giacomina, Fumagalli, Giorgio, Giaccone, Giorgio, Di Fede, Giuseppe, Kuchcinski, Gregory, Benotmane, Hanya, Zetterberg, Henrik, Swift, Imogen J., Poos, Jackie, M. Papma, Janne, Nicholas, Jennifer, Durães, João, Lombardi, Jolina, Juncà-Parella, Jordi, Sarto, Jordi, Villanua, Jorge, Samra, Kiran, Poesen, Koen, Öijerstedt, Linn, Graf, Lisa, Giannini, Lucia, Russell, Lucy L., Leitão, Maria João, Almeida, Maria Rosario, Serpente, Maria, Lima, Marisa, Cañada, Marta, Bocchetta, Martina, Polyakova, Maryna, Vandenbulcke, Mathieu, Bertoux, Maxime, Veldsman, Michele, Castelo-Branco, Miguel, Tábuas-Pereira, Miguel, Tainta, Mikel, Balasa, Mircea, Zulaica, Miren, Freedman, Morris, Barandiaran, Myriam, Bargalló, Nuria, Wagemann, Olivia, Colliot, Olivier, Caroppo, Paola, Alves, Patricia, Thompson, Paul, Rosa-Neto, Pedro, Van Damme, Philip, Shafei, Rachelle, Convery, Rhian S., van Minkelen, Rick, Bartha, Robart, Gasparotti, Roberto, Keren, Ron, Rademakers, Rosa, Bruffaerts, Rose, Sayah, Sabrina, Black, Sandra, Loosli, Sandra, Mitchell, Sara, Prioni, Sara, Anderl-Straub, Sarah, Gauthier, Serge, Afonso, Sónia, Schönecker, Sonja, Gazzina, Stefano, Lebouvier, Thibaud, Cope, Thomas, Rittman, Timothy, Hoegen, Tobias, Bessi, Valentina, Cantoni, Valentina, Redaelli, Veronica, Jelic, Vesna, Deramecourt, Vincent, Borracci, Vittoria, The Genetic FTD Initiative, GENFI, Almeida, Maria Rosario, Serpente, Maria, Lima, Marisa, Cañada, Marta, Bocchetta, Martina, Polyakova, Maryna, Vandenbulcke, Mathieu, Bertoux, Maxime, Veldsman, Michele, Castelo-Branco, Miguel, Tábuas-Pereira, Miguel, Tainta, Mikel, Balasa, Mircea, Zulaica, Miren, Freedman, Morris, Barandiaran, Myriam, Bargalló, Nuria, Wagemann, Olivia, Colliot, Olivier, Caroppo, Paola, Alves, Patricia, Thompson, Paul, Rosa-Neto, Pedro, Van Damme, Philip, Tiraboschi, Pietro, Shafei, Rachelle, Convery, Rhian S, van Minkelen, Rick, Bartha, Robart, Gasparotti, Roberto, Keren, Ron, Rademakers, Rosa, Bruffaerts, Rose, Sayah, Sabrina, Black, Sandra, Loosli, Sandra, Mitchell, Sara, Prioni, Sara, Anderl-Straub, Sarah, Gauthier, Serge, Afonso, Sónia, Schönecker, Sonja, Gazzina, Stefano, Lebouvier, Thibaud, Cope, Thomas, Rittman, Timothy, Hoegen, Tobias, Bessi, Valentina, Cantoni, Valentina, Redaelli, Veronica, Jelic, Vesna, Deramecourt, Vincent, Borracci, Vittoria, Ullgren, Abbe, Rollin, Adeline, Camuzat, Agnès, Esteve, Aitana Sogorb, Gabilondo, Alazne, Lladó, Albert, Benussi, Alberto, Brice, Alexis, Gorostidi, Ana, Verdelho, Ana, Arighi, Andrea, Antonell, Anna, Bertrand, Anne, Engel, Annerose, Vogels, Annick, Bouzigues, Arabella, Funkiewiez, Aurélie, Nacmias, Benedetta, Bender, Benjamin, Ferrari, Camilla, Wilke, Carlo, Heller, Carolin, Maruta, Carolina, Greaves, Caroline V, Timberlake, Carolyn, Ferreira, Catarina B, Prix, Catharina, Fenoglio, Chiara, Shoesmith, Christen, Polito, Cristina, Rinaldi, Daisy, Saracino, Dario, Cash, David, Thomas, David L, Tang-Wai, David, Duro, Diana, Rogaeva, Ekaterina, Scarpini, Elio, Wlasich, Elisabeth, Buratti, Emanuele, Todd, Emily, Premi, Enrico, do Couto, Frederico Simões, Miltenberger, Gabriel, Lombardi, Gemma, Rossi, Giacomina, Fumagalli, Giorgio, Giaccone, Giorgio, Di Fede, Giuseppe, Kuchcinski, Gregory, Benotmane, Hanya, Zetterberg, Henrik, Swift, Imogen J, Poos, Jackie, M Papma, Janne, Nicholas, Jennifer, Durães, João, Lombardi, Jolina, Juncà-Parella, Jordi, Sarto, Jordi, Villanua, Jorge, Samra, Kiran, Poesen, Koen, Öijerstedt, Linn, Graf, Lisa, Giannini, Lucia, Russell, Lucy L, and Leitão, Maria João

Subjects
diagnostic imaging [Brain Stem], pathology [Motor Neurons], diagnostic imaging [Motor Neuron Disease], diagnostic imaging [Frontotemporal Dementia], diagnostic imaging [White Matter], pathology [Brain Stem], Neurology, pathology [White Matter], pathology [Frontotemporal Dementia], Mutation, C9orf72, Humans, genetics [Motor Neuron Disease], ddc:610, Human medicine, Neurology (clinical), genetics [Frontotemporal Dementia], genetics [C9orf72 Protein], Brainstem, GENFI, Frontotemporal dementia
Abstract

Background and objectives The C9orf72 expansion is the most common genetic cause of frontotemporal dementia (FTD) and/or motor neuron disease (MND). Corticospinal degeneration has been described in post-mortem neuropathological studies in these patients, especially in those with MND. We used MRI to analyze white matter (WM) volumes in presymptomatic and symptomatic C9orf72 expansion carriers and investigated whether its measure may be helpful in predicting the onset of symptoms. Methods We studied 102 presymptomatic C9orf72 mutation carriers, 52 symptomatic carriers: 42 suffering from FTD and 11 from MND, and 75 non-carriers from the Genetic Frontotemporal dementia Initiative (GENFI). All subjects underwent T1-MRI acquisition. We used FreeSurfer to estimate the volume proportion of WM in the brainstem regions (midbrain, pons, and medulla oblongata). We calculated group differences with ANOVA tests and performed linear and non-linear regressions to assess group-by-age interactions. Results A reduced WM ratio was found in all brainstem subregions in symptomatic carriers compared to both noncarriers and pre-symptomatic carriers. Within symptomatic carriers, MND patients presented a lower ratio in pons and medulla oblongata compared with FTD patients. No differences were found between presymptomatic carriers and non-carriers. Clinical severity was negatively associated with the WM ratio. C9orf72 carriers presented greater age-related WM loss than non-carriers, with MND patients showing significantly more atrophy in pons and medulla oblongata. Discussion We find consistent brainstem WM loss in C9orf72 symptomatic carriers with differences related to the clinical phenotype supporting the use of brainstem measures as neuroimaging biomarkers for disease tracking.

Published
2022

4. Motor symptoms in genetic frontotemporal dementia: developing a new module for clinical rating scales

Author

Samra, K, MacDougall, AM, Peakman, G, Bouzigues, A, Bocchetta, M, Cash, DM, Greaves, CV, Convery, RS, van Swieten, JC, Jiskoot, L, Seelaar, H, Butler, CR, Fenoglio, C, Rohrer, JD, Gerhard, A, Ducharme, S, Le Ber, I, Tiraboschi, P, Santana, I, Pasquier, F, Levin, J, Shoesmith, C, Otto, M, Russell, LL, Nelson, A, Cash, D, Thomas, DL, Todd, E, Ferrari, C, Benotmane, H, Timberlake, C, Gabilondo, A, Cope, T, Rittman, T, Benussi, A, Premi, E, Gasparotti, R, Thompson, P, Archetti, S, Fumagalli, G, do Couto, FS, Borracci, V, Polito, C, Rossi, G, Giaccone, G, Di Fede, G, Caroppo, P, Ferreira, CB, Prioni, S, Langheinrich, T, Redaelli, V, Lladó, A, Bartha, R, Tang-Wai, D, Rogaeva, E, Castelo-Branco, M, Freedman, M, Keren, R, Black, S, Mitchell, S, Miltenberger, G, Rademakers, R, Poos, J, Papma, JM, Giannini, L, van Minkelen, R, Pijnenburg, Y, Gauthier, S, Nacmias, B, Lombardi, G, Bessi, V, Veldsman, M, Andersson, C, Thonberg, H, Öijerstedt, L, Prix, C, Jelic, V, Antonell, A, Graff, C, Olives, J, Balasa, M, Bargalló, N, Borrego-Ecija, S, Verdelho, A, Kuchcinski, G, Maruta, C, Gorostidi, A, Laforce, R, Villanua, J, Wlasich, E, Cañada, M, Tainta, M, Zulaica, M, Barandiaran, M, Moreno, F, Alves, P, Bender, B, Bertoux, M, Wilke, C, Lebouvier, T, Camuzat, A, Graf, L, Vogels, A, Vandenbulcke, M, Van Damme, P, Bruffaerts, R, Poesen, K, Rosa-Neto, P, Sanchez-Valle, R, Brice, A, Bertrand, A, Funkiewiez, A, Rinaldi, D, Saracino, D, Colliot, O, Sorbi, S, Sayah, S, Wagemann, O, Loosli, S, Schönecker, S, Hoegen, T, Lombardi, J, Anderl-Straub, S, Nicholas, J, Rollin, A, Deramecourt, V, Arighi, A, Santiago, B, Duro, D, Leitão, MJ, Almeida, MR, Tábuas-Pereira, M, Gazzina, S, Afonso, S, Masellis, M, Tartaglia, C, Shafei, R, Rowe, JB, Borroni, B, Finger, E, Synofzik, M, Galimberti, D, Vandenberghe, R, de Mendonça, A, Cantoni, V, Genetic FTD Initiative (GENFI), Samra, Kiran [0000-0002-3105-7099], Apollo - University of Cambridge Repository, Maruta, Carolina, Ferreira, Catarina B, Miltenberger, Gabriel, do Couto, Frederico Simões, Gabilondo, Alazne, Gorostidi, Ana, Villanua, Jorge, Cañada, Marta, Tainta, Mikel, Zulaica, Miren, Barandiaran, Myriam, Alves, Patricia, Bender, Benjamin, Wilke, Carlo, Graf, Lisa, Vogels, Annick, Vandenbulcke, Mathieu, Van Damme, Philip, Bruffaerts, Rose, Poesen, Koen, Rosa-Neto, Pedro, Gauthier, Serge, Camuzat, Agnès, Brice, Alexis, Bertrand, Anne, Funkiewiez, Aurélie, Rinaldi, Daisy, Saracino, Dario, Colliot, Olivier, Sayah, Sabrina, Prix, Catharina, Wlasich, Elisabeth, Wagemann, Olivia, Loosli, Sandra, Schönecker, Sonja, Hoegen, Tobias, Lombardi, Jolina, Anderl-Straub, Sarah, Rollin, Adeline, Kuchcinski, Gregory, Bertoux, Maxime, Lebouvier, Thibaud, Deramecourt, Vincent, Santiago, Beatriz, Duro, Diana, Leitão, Maria João, Almeida, Maria Rosario, Tábuas-Pereira, Miguel, Afonso, Sónia, Nelson, Annabel, Bocchetta, Martina, Cash, David, Thomas, David L, Todd, Emily, Benotmane, Hanya, Nicholas, Jennifer, Samra, Kiran, Shafei, Rachelle, Timberlake, Carolyn, Cope, Thomas, Rittman, Timothy, Benussi, Alberto, Premi, Enrico, Gasparotti, Roberto, Archetti, Silvana, Gazzina, Stefano, Cantoni, Valentina, Arighi, Andrea, Fenoglio, Chiara, Fumagalli, Giorgio, Borracci, Vittoria, Rossi, Giacomina, Giaccone, Giorgio, Di Fede, Giuseppe, Caroppo, Paola, Tiraboschi, Pietro, Prioni, Sara, Redaelli, Veronica, Tang-Wai, David, Rogaeva, Ekaterina, Castelo-Branco, Miguel, Freedman, Morris, Keren, Ron, Black, Sandra, Mitchell, Sara, Shoesmith, Christen, Bartha, Robart, Rademakers, Rosa, Poos, Jackie, Papma, Janne M, Giannini, Lucia, van Minkelen, Rick, Pijnenburg, Yolande, Nacmias, Benedetta, Ferrari, Camilla, Polito, Cristina, Lombardi, Gemma, Bessi, Valentina, Veldsman, Michele, Andersson, Christin, Thonberg, Hakan, Öijerstedt, Linn, Jelic, Vesna, Thompson, Paul, Langheinrich, Tobias, Lladó, Albert, Antonell, Anna, Olives, Jaume, Balasa, Mircea, Bargalló, Nuria, Borrego-Ecija, Sergi, and Verdelho, Ana

Subjects
Progranulin, Clinical Neurology, C9ORF72, tau Proteins, AMYOTROPHIC-LATERAL-SCLEROSIS, diagnosis [Frontotemporal Dementia], C9orf72, Tremor, Genetics, Humans, ddc:610, genetics [Frontotemporal Dementia], genetics [C9orf72 Protein], MUTATION, Science & Technology, C9orf72 Protein, HERITABILITY, Amyotrophic Lateral Sclerosis, PROGRESSIVE SUPRANUCLEAR PALSY, COGNITIVE IMPAIRMENT, REPEAT EXPANSION, genetics [tau Proteins], Motor, PATHOLOGICAL FEATURES, Neurology, FOS: Biological sciences, Frontotemporal Dementia, Mutation, Human medicine, Neurosciences & Neurology, Neurology (clinical), Tau, TAU, Life Sciences & Biomedicine, Frontotemporal dementia, PARKINSONISM
Abstract

Funder: CIBERNED, Funder: Canadian Institutes of Health Research; doi: http://dx.doi.org/10.13039/501100000024, Funder: Lemaire Family Foundation, Funder: Swedish Frontotemporal Dementia Initiative, Funder: Italian Ministry of Health, Funder: Weston Brain Institute; doi: http://dx.doi.org/10.13039/100012479, Funder: Mady Browaaeys Fund, Funder: Miriam Marks Brain Research UK, Funder: Bluefield Project, OBJECTIVE: To investigate the optimal method of adding motor features to a clinical rating scale for frontotemporal dementia (FTD). METHODS: Eight hundred and thirty-two participants from the international multicentre Genetic FTD Initiative (GENFI) study were recruited: 522 mutation carriers (with C9orf72, GRN and MAPT mutations) and 310 mutation-negative controls. A standardised clinical questionnaire was used to assess eight motor symptoms (dysarthria, dysphagia, tremor, slowness, weakness, gait disorder, falls and functional difficulties using hands). Frequency and severity of each motor symptom was assessed, and a principal component analysis (PCA) was performed to identify how the different motor symptoms loaded together. Finally, addition of a motor component to the CDR® plus NACC FTLD was investigated (CDR® plus NACC FTLD-M). RESULTS: 24.3% of mutation carriers had motor symptoms (31.7% C9orf72, 18.8% GRN, 19.3% MAPT) compared to 6.8% of controls. Slowness and gait disorder were the commonest in all genetic groups while tremor and falls were the least frequent. Symptom severity scores were similar to equivalent physical motor examination scores. PCA revealed that all motor symptoms loaded together so a single additional motor component was added to the CDR® plus NACC FTLD to form the CDR® plus NACC FTLD-M. Individual global scores were more severe with the CDR® plus NACC FTLD-M, and no patients with a clinically diagnosed motor disorder (ALS/FTD-ALS or parkinsonism) were classified anymore as asymptomatic (unlike the CDR® plus NACC FTLD alone). CONCLUSIONS: Motor features are present in mutation carriers at all disease stages across all three genetic groups. Inclusion of motor symptoms in a rating scale that can be used in future clinical trials will not only ensure a more accurate severity measure is recorded but that a wider spectrum of FTD phenotypes can be included in the same trial.

Published
2022

5. Classifying Alzheimer's disease and frontotemporal dementia using machine learning with cross‐sectional and longitudinal magnetic resonance imaging data

Author

Agnès Pérez‐Millan, José Contador, Jordi Juncà‐Parella, Beatriz Bosch, Laia Borrell, Adrià Tort‐Merino, Neus Falgàs, Sergi Borrego‐Écija, Nuria Bargalló, Lorena Rami, Mircea Balasa, Albert Lladó, Raquel Sánchez‐Valle, and Roser Sala‐Llonch

Subjects
Neurology, Radiological and Ultrasound Technology, Radiology, Nuclear Medicine and imaging, Neurology (clinical), Anatomy
Published
2023

6. The <scp> APOE4 </scp> effect: structural brain differences in Alzheimer's disease according to the age at symptom onset

Author

Gonzalo Forno, Jose Contador, Agnès Pérez‐Millan, Nuria Guillen, Neus Falgàs, Jordi Sarto, Adrià Tort‐Merino, Magdalena Castellví, Beatriz Bosch, Guadalupe Fernández‐Villullas, Mircea Balasa, Anna Antonell, Roser Sala‐ Llonch, Raquel Sanchez‐Valle, Michael Hornberger, and Albert Lladó

Subjects
Neurology, Neurology (clinical)
Abstract

How the APOE genotype can differentially affect cortical and subcortical memory structures in biomarker-confirmed early-onset (EOAD) and late-onset (LOAD) Alzheimer's disease (AD) was assessed.Eighty-seven cerebrospinal fluid (CSF) biomarker-confirmed AD patients were classified according to their APOE genotype and age at onset. 28 were EOAD APOE4 carriers (+EOAD), 21 EOAD APOE4 non-carriers (-EOAD), 23 LOAD APOE4 carriers (+LOAD) and 15 LOAD APOE4 non-carriers (-LOAD). Grey matter (GM) volume differences were analyzed using voxel-based morphometry in Papez circuit regions. Multiple regression analyses were performed to determine the relation between GM volume loss and cognition.Significantly more mammillary body atrophy in +EOAD compared to -EOAD is reported. The medial temporal and posterior cingulate cortex showed less GM in +LOAD compared to -LOAD. Medial temporal GM volume loss was also found in +EOAD compared to -LOAD. With an exception for +EOAD, medial temporal GM was strongly associated with episodic memory in the three groups, whilst posterior cingulate cortex GM volume was more related with visuospatial abilities. Visuospatial abilities and episodic memory were also associated with the anterior thalamic nucleus in -LOAD.Our results show that the APOE genotype has a significant effect on GM integrity as a function of age of disease onset. Specifically, whilst LOAD APOE4 genotype is mostly associated with increased medial temporal and parietal atrophy compared to -LOAD, for EOAD APOE4 might have a more specific effect on subcortical (mammillary body) structures. The findings suggest that APOE genotype needs to be taken into account when classifying patients by age at onset.

Published
2022

7. Workflows and Outcomes in Patients With Suspected Large Vessel Occlusion Stroke Triaged in Urban and Nonurban Areas

Author

Alvaro Garcia-Tornel, Monica Millan, Marta Rubiera, Alejandro Bustamante, Manuel Requena, Laura Dorado, Marta Olivé-Gadea, Xavier Jiménez, Angels Soto, Marisol Querol, Maria Hernández-Pérez, Meritxell Gomis, Pere Cardona, Xabier Urra, Francesc Purroy, Yolanda Silva, Xavier Ustrell, Patricia Esteve, Mercè Salvat-Plana, Miquel Gallofré, Carlos Molina, Antoni Dávalos, Tudor Jovin, Sonia Abilleira, Marc Ribo, Natalia Pérez de la Ossa, Marc Ribó Jacobi, Estela Sanjuan, Katherine Santana, Noelia Rodríguez, Jorge Pagola, David Rodriguez-Luna, Olga Maisterra, Estevo Santamarina, Marian Muchada, Jesús Juega, Sandra Boned, Antonio Palasi Franco, Álvaro García -Tornel, Matías Deck, Victoria Sala, Lucía Muñoz, Mónica Millán, Elena López-Cancio, María Hernández-Pérez, Jordi Ciurans, Daniela Samaniego, Tamara Canento, Lorena Martin, Anna Planas, Joaquin Broto, Agustín Sorrentino, Martí Paré, Nuole Zhu, Alicia Garrido, Laia Grau, Ane Miren Crespo, Silvia Presas, Miriam Almendrote, Alba Ramos, Giuseppe Lucente, Lourdes Ispierto, Manuel Lozano, Juan Luis Becerra, Marta Jiménez, Dolores Vilas Rolán, Nicolas Guanyabens, Josep Sanchez-Ojanguren, Alicia Martínez-Piñeiro, Sara Forcén, Mireia Gea, Marta Álvarez, Anna Ramos, Manuel Domínguez Lizarbe, Sara, Rubio Guerra, Irene Bragado, Andrea Arbex, Luis Rodríguez, Pere Cardona Portela, Helena Quesada García, Blanca Lara Rodríguez, Nuria Cayuela, Julia Miró, Clara Marzal, Andrés Paipa, Sergio Campoy, Ana Núñez, Pablo Arroyo, Sarah Besora, Vanessa Adell, Jaume Campdelacreu, Montse Alemany Martí, Belén González, Laura Bau Vila, Marta Fiter Crespo, Anna Berbel, Ma. Cristina Villaescusa Urbaneja, Núria Guillen, Nuria Vidal, Patricia Valentina Vérez Santamaria, Diego Herrero Navarro, Marta Simó, Mercedes Falip, Elisabeth Matas, Neus Mongay Ochoa, Ariadna Gifreu, Albert Muñoz, Lucía Romero, Eduard Portell, Guillermo Hernández Perez, F. Ruiz Esteve, Silvia Teixidor, Augusto Salazar Talavera, Roser Gómez, Xabier Urra Nuin, Martha Vargas, Ángel Chamorro, Sergio Amaro, Laura Llull, Arturo Renú, Salvatore Rudilosso, Raquel Sánchez del Valle, Helena Ariño, Nuria Solà, Delón la Puma, Francisco Gil, Juan Bernardo Gómez, Nuria Matos, Neus Falgàs, Sergi Borrego, Almudena Sánchez, Mircea Balasa, Carmen Montejo, Mar Guasp, David Reyes, Pablo Sánchez Cervilla, Jose Miguel Contador, Victor Augusto Vera Monge, Oscar Ramos, Alejandro Rodríguez, Ana Rodríguez Campello, Gemma Romeral Ballester, Mireia Llop Trujillano, Eva Giralt Steinhauer, Elisa Cuadrado Godia, Angel Javier Ois Santiago, Jordi Jimenez Conde, Joan Martí Fábregas, Daniel Guisado, Luís Prats, Pol Camps, Raquel Delgado, Alejandro Martínez Domeño, Rebeca Marín, David Cànovas, Jordi Estela, Marta Ros, Sonsoles Aranceta, Jordi Espinosa, Marta Rubio, Cristina Lafuente, Oriol Barrachina, Alicia Anguita, Anna Reverter, Carmen García, Gemma Sansa, Mariona Hervas, Monica Crosas, Tania Delgado, Jerzy Krupinski, Sonia Huertas Folch, Gemma Muñoz Gamito, Josep Trenado Alvarez, Teresa Subirana, Jessica Molina, Laura Comes Romero, Gemma Guardia Valls, Miriam Jover, Javier Joaquín Sotova, Sonia Mª García Sánchez, Sebastian Valenzuela (intensivista), Manuel Gómez-Choco, Juan José Mengual, M. Àngels Font, Mª Isabel Gómez Ruiz, Irati Zubizarreta, Susana Fernández González, Laura Gubieras, Carmen E. Cobos, Luis Mena Romo, Nuria Caballol, Luis Cano, Joaquín Serena Leal, Mikel Terceño Izarra, Irene Bragado Trigo, Saima Bashir Viturro, Laura Pardo Albiñana, Montserrat Reina Garrido, Carla Marco Cazcarra, Karol Enrique Uscamaita, Fabian Márquez, Cristina Coll, Mar Irida Lloret Villlas, Berta Solano Vila, Berta Alemany Perna, Daniel López Domínguezl, Mercedes de Lera, Anna Cots Foraster, Urszula Bojaryn, Ikram Benabdelhak, Gerard Mauri Capdevila, Jordi Sanahuja Montesinos, Daniel Vázquez, José Vicente Hervás, Cristina González, Alejandro Quílez, Mikel Vicente Pascual, María Ruiz, Yolanda Riba, M. Pilar Gil Villar, Cristina García, Xavier Ustrell Roig, Mònica Baldrich Mora, Anna Pellisé Guinjoan, Judit Borras, Alba Mañé Martínez, Rafael Marés, Jaume Viñas i Gaya, Laia Seró, Alan Flores, Paula Rodríguez, Gislaine Castilho, Angela Monterde Ortega, Silvia Reverté, Josep Zaragoza, Joan Josep Baiges, Gisela Martín Ozaeta, Sonia Escalante, Iago Payo, Júlia Saura Salvado, Natalia Mas Sala, Josep M Soler Insa, Ester Tio Vilamala, Josep Abos Navarro, Héctor Cruz Tabuenca, Tamara Canento Sánchez, Elisabet Roldán, Elsa Puiggrós Rubiol, Elisabet Franquet, Lidia Fuentes, Javier Donaire, Elena Martí, Laura Giménez, Junior Gil Vázquez, Eloisa Nieto Clara Gris Ambrós, Puri Rodríguez, José Félix Oletta, Pilar Pons Mellado, Catena, Bárbara Gómez, Vergilin Raileau, Esther Catena Ruíz, Oscar Pardina, Jordi Mercadal, María López-Diéguez, Pilar Pérez, Lourdes Gabarró, María Orriols, Joan Josep Canet, Mireia Roca, Muriel Álvaro, Francesc Boneu, Georgina Giménez, Jaume Albà, Francesc Gibert, Jéssica Garcia, Patricia Barragan, Gustavo Jurado, Josep Sabaté Ortega, Joan Amaurys Martínez Solano, Víctor Fernández, Mónica Torres, Ana Belén Montero Alvaredo, Laura Redondo Parejo, Josep Maria Aragonés, Anna Bullón, Cora Loste, Paula González, Neker Bejarano, Francisco Sanchez, Gianni Lucchetti, Xavier Pla, Javier Gimeno, Esteban Reynaga, Montse Barcons, Gabriel Celedón, Juan Ortiz, Goran Anastasovski, Oscar Mascaró, Javier Diez de los Ríos, Meritxell Feliu, Anna Ribera, Cristhian Ruiz, Gerard Corominas, Daniella Nunes, Claudia Roca, Nadina Latorre, Lizbeth Yataco, Maricelys Cruz, Nerea Blanco, Santiago Castejón, Dolores Cocho Calderón, Claustre Pont Sunyer, Jordi Espinosa Garcia, Rodrigo Paz Martin, Albert de Luis Sanchez, Dolores Espinosa Vivas, Juan Valencia Molina, Gemma, Planels Palome, Laia Tomas Chaume, Ares Villagrasa Vilella, Marco Bustamante, Anunciación Boltes, Fernando Rodríguez, Itziar Arrieta, Jordi Ciurans Molist, Barnés Andreu, Ernest Palomeras Soler, Nicolau Guanyabens Buscà, Manuel Daza López, Jordi Bigas Farreres, Virginia Casado Ruiz, Desiree Muriana Batiste, Mª Pilar Sanz Cartagena, Eulalia Cabot de Vega, Josep Bassa Real, Hector Pelaez Roman, César Socolich, Josep Mª Alonso Camp, Antonio Tomás Cano Orgaz, Mª Pilar Fossas Felip, Nicolás Morón, Sandra Bacca, Mauricio Molina, Francesc Casarramona, Lorena Elias, Muhammad Zidane Bukaei, Jose Antonio Martos Gutierrez, Judith Lopez Escuin, Cristina Olaizola, Yolexis López Vargas, Juan Jiménez Oyonarte, Rashida Soultana, Eduardo Sanjurjo Golpe, Esther Salvador, Guillem Vila, Marcos Serrano, Matilde Nuria López Claverol, Marian Lamolla, Miquel Amate, Adriana Rodriguez, Ruth Romero, Montgomery del Carpio, Ana Isabel Hernandez, Julián Martín, M Carmen Rosas, Antonio Nogueroles, Sorilandy Encarnación, Augusto Robles, Jose Antonio Herrera, Roger Gavilán, Toghrol Mameghani, Gastón Araujo, M.Angeles Garrido Morales, Enric Ramon Albert Segui, Eva Fernandez Climent, Francesc Paris Pujol, Mireia Judit Garrofé Seira, Lucía Gómez Pía, Fernando Salleres Nuñez, Cristina Aguar Peñalver, Cristina Vaz Lopes, Elisenda Ribera Tasa, Carmen Repullo Vilchez, Modesto Sánchez Zambrana, Beatriu Suescun Ribas, Inés Vilà Panés, Montserrat Vila Planavila, Alicia Vaqueiro Lorenzo, Meritxell Sabartés Guixes, Jorge Medina, David Sambrano, Javi Zamarreño, Carmen Pirela, Paola Vélez, Luis Cajamarca, Honey Pérez, Yarles Martínez, Jesus Alexander Gonçalves, Carles Regordosa, Claudia Mormeneo, Laura Griu, Maria Francia Colina, Enric Farik, Dolors Carrión Duch, Carles Badenas, Oscar Bernal, Núria Agramunt, Shyrlei Morales, Victoria Reynoso, Miguel Guerrero, Primitivo Romera Cid, Mònica Folqué, Claudia Pedroza, Adnan Hachem, Íñigo Soteras Martínez, Xavier Verdera García, Mercè López Amorós, Xavier Costa Subirós, Marta Cufí Benet, Cecile Van Eendenburg, Teresa Osuna, Dra Gina Santos, Mireia Pallisera, Lluís Gonzalo Oliva, Gemma Sanchez, Xavier Basurto, Ludgi Vivoda, Richard Van der Kleyn, Laura Robles, Ana Cabanelas Barranco, Mª Cruz Almendros, Marc Pérez Oliveras, Amelia Fernández Álvarez, Maria Rybyeva, Antoni Viñas, Maria Barcons, Joaquim Danès Alberto Tavera, Pablo Burbano, Cintie López, David Cruz, Paula Bisbe, Nora Fernández, Juan Carlos Palacio, Eduardo Fraiz, Oriol Aguiló, Rollmy Amorodjo, John Velázquez, Elena Sánchez, Jaume Español, Judit Perez de Celis, Anna Coll, Glòria Díaz, Margarida Vergés i Sala, Mª Ángels Casas Capdevila, Yosmairy Yoselin Ferrini, Aitor Gorriz, Diego-Javier Cucurell Navarro, Dulce Velásquez, Jaume Pla Soler, Josep González, Julian David Higuera, Lina Cuellar, Liza Margarita Miniello, Lluis Pujol, Sorin Cracan, Mora Vives, M Angela, Lopez Lopez, null Anabel, Montse Gorchs Molist, Delofeu Anna, Silvia Solà Muñoz, Ferreres Yolanda, Carol Pujalte, Elisabeth Téllez Marín, Yolanda Font Casas, Sara Hernández Luque, Joaquim Mejias Sendra, Francesca Mellado Valero, Campos Escala, Galup De Lacanal, Lopez Diaz, Castillo Paramio, Català Estopà, Español Moreda, Calafell Majo, Carballo Almeida, Castro Naval, M Elena, Cregut Ruiz, Pere Lluis, Deulofeu Font, Fabregat Sanjuan, Joan Pere, Fontquerni Gorchs, Forés Bellés, Joan Antoni, Gomez Herrera, Juan Carlos, Hijazo Prades, Itzaina Torvisco, Marti Rovira, Obiols Gonzalez, Olive Cavero, Querol Gil, M Soledad, Rico Rodriguez, Rios Sambernardo, Ropero Molina, Jose Ramon, Sanchez Valero, Santos Arevalo, Maria Jose, Soto Garcia, Maria Angeles, Tebar Escribano, Torres Garcia, Pedro José, Verdes Carrion, M Isabel, Verge Lopez, Juan Jose, Lopez Canela, M Angeles, Lucas Guarque, Morales Alvarez, Jorge Arnulfo, Morell Fornieles, Subirats Gomez, Maria Teresa, Torello Masa, Val Lopez, Maria Mercedes, Palmero Reyes, Juan Manuel, Rodriguez Forne, Ruana Turiel, Sanchez Gonzalez, Sebastia Gornals, Abrio Rico, Albert Gual Falip, Aznar Oliveros, Brugues Perotti, Calvet Molinero, Catells Franco, Corrales Medina, Daroca Miro, Duran Marquez, Feliu Pradas, Figueras Casanova, Garcia Tortajada, Grajera Gallego, Azahara del Mar, Las Arroyo, Dulcenombre de Jesus, Laserreta Sanz, Llambrich Vidal, Monllao Corral, Morales de la Cruz, Moreno Blanco, Orejuela Orgaz, Piñana Suazo, Pons Minguillon, Rodríguez Gómez, José Carlos, Rodriguez Pereira, Sedo Porcel, Sevil Villar, Sierra Lopez, Torres Romero, Trepat Calveres, Ventura Arnella, Acera Gil, M Teresa, Biesot Vico, Castro Galea, Rosa Maria, Escorcia Chafer, Juan Antonio, Gil Faure, Hernandez Luque, Jimenez Delgado, Mallafre Gay, M. Angel, Olivares Sanzo, Pubill Fondevila, Sabate Fort, Segovia Agámez, Antonio Carlos, Turata Longaretti, Valle Hernandez, Trayner Guixens, Aguilar Valor, Aguirre Alvarez, Alastrue Naval, Alferez Baquero, Alonso Marne, Cristina, Aloy Orozco, Alvarez Colino, Alvarez Peñuela, Ameller Cirilo, Maria Vanessa, Andujar Guerrero, Estefania Remedios, Auladell Sillero, Azcarate Sorbet, Basany Genesca, Benavent Barduena, Benito Tudela, Blanch Pardo, Boluda Pla, Bonilla Gonzalez, Bru Serramalera, Burnat Andreu, Caballero Calvo-Rayo, Calvo Casellas, Camps Mombiela, Cano Bresme, Carcelen Fernandez, Caro Solà, Casasas Matavacas, Castanedo Bolado, Cerdeña Cortina, Abella Jane, Laia Collado Borrego, Colom Orri, Comellas Vilanova, Conillera Sole, Cots Torres, Cuchi Estepa, de Sostoa Graell, del Rio Lopez, Delgado Compte, Diaz Bueno, Diaz Maneiro, Andrea Lucia, Domenech Palau, M. Carme, Duran Carasso, Pablo Javier, El Abidi, Escoda Martin, Esteve Casanovas, Fernandez Perez, Ferre Quintero, Flores Escobar, Fontcuberta Abad, Fortes del Valle, Mª Luisa, Franco Quesada, Sara Maria, Franco Romero, Gallego Francisco, Gamiz Gala, Alicia, Garcia Castañeda, Garcia Rodriguez, Casajuana Gemma, Gomez Arroyo, Gomez Girbau, Gonzalez Fernandez, Gonzalez Gonzalez, Gonzalez Lopez, Gual Obeso, Guerrero Blanco, Guillemas Roca, Guillermo Eudaldo, Hernandez Sebastia, Homar Covas, Hostench Alvarez, Huerta Royo, Ibañez Barcelo, Izquiero Cruz, Jaione Urdangarin Etxetxikia, Juárez Gimenez, Khlifi Alami, Laparra Gasco, Lara Moreales, Lasaosa Medina, Maria Lourdes, Lazaro Cava, Leon Berrar, López Maturana, Lopez Ramirez, López Romero, Lorente Marco, Lorenzo Martin, Lozano Casals, Lujan Nicola, Madrid Diaz, Jose Antonio, Maria Teresa Peris Morales, Marti Clemente, Martinez Castaño, David Natanael, Martinez Gamez, Martinez Gonzalez, Martinez Quesada, Maria de la Cabeza, Marzà Fusté, Mireia, M Conillera, Melendo Lasheras, Miralles Mestre, Montserrat Puig Pastalle, Montserrate Vidal, Mora Mellado, Morales Ponce, Morera Cabre, Morera Vivet, Mundi Souza, Muñoz Quiles, Navea Rosa, Neira Iglesias, M Asuncion, Nuñez Manrique, Mª Pilar, Obiols Martinez, Pallares Reig, Partegas Torres, Pascual Berengueras, Perez Gamez, Perez Oset, Perez Restrepo, Maria Alejandra, Planas Yeste, Planells Mangado, Puertas Carbonell, Quinteiro Blanco, Rebollar Benavente, Recasens Fernandez, Reyes Gomez, Maria del Carmen, Roca Pou, Rodriguez Ferrer, Rodriguez Franco, Rodriguez Fuertes, Rodriguez Muñoz, Rodriguez Navarro, Roig Iniesta, Romero Gracia, Rovira Brunet, Rovira de Eugenio, Rubio Baena, Ruiz Llorens, Sala Llamazares, San Juan Alaez, Sanchez Segura, Santasusana Soldevilla, Sanz Salmeron, Segura Perez, Serra Balcells, Sorina Dumitras, Teixidor Montoya, Tena Vicente, Tierno Salinas, Ester Ines, Toledo Testa, Tomàs Figueras, Tomas Ruperez, Torrano Garcia-Penche, Torres Esparza, Florenc Uku, Vazquez Blanco, Vazquez De la Paz, Vazquez Gil, Vazquez Gonzalez, Vidal Meler, Vilalta Cots, Vilches Jimenez, Visser Fernandez, Viu Gavin, Vives Vives, Carmona Jimenez, Francisco Jose, Galobardes Vilches, Gonzalez Gomez, Jodar Manzanera, Marimon Cortes, Marrodan Orive, Martin Bosch, Martorell Lopez, Millares Roca, M Jesus, Miralles Guri, Muliterno Hernandez, Muñoz Oliva, Pons Pujol, Postius Conde, Prieto Arruñada, Quintana Mathé, Rosell Mata, Alvarin Alvarez, Arrufat Flores, Bañuelos Pago, Campo Vilar, Cardus Hidalgo, Castello Gil, Maria Gloria, Castrillo Montsesinos, Clave Garces, Comes Sanroma, Descalzo Sequi, Errando Ricol, Escudero Campillo, Maria del Mar, Fernandez Alvarez, Fernandez Gomez, Franch Espinosa, Freixes Graells, Garcia Plaza, Garcia-Marron Gallego, Hernandez Simancas, Jaraba Armas, Jimenez Ramos, Lopez Oganissian, Madrona Romero, M Rosa, Martinez Millan, Martínez Morón, Merchan Encinas, Moreno Jimenez, Muñoz Rico, Navarro Rodriguez, Nogales Ibañez, Rita Maria, Novillo Viera, Parella Torrabadella, Mari Alba, Pera Villar, Carla Montserrat, Rabella Miralles, Ramis Trilles, Ribera Ortiz, Sastre Perez, Soro Borrega, Tapia Fores, Tellez Bernad, Trenado Alvarez, Felix Martin, Herrero Perez, Lanau Fuster, Lopez Gomariz, Pardo Lozano, Quintana Altimiras, Ventosa Lopez, Almodovar Damian, Alvarez Monterroso, Arambudo Comas, Boullon Garzon, Burgos Capella, Campuzano Garcia, Maria Del Mar, Capdevila Olivas, Carre Marti, Clara Isabel, Carretero Bacaicoa, Cazorla Calderon, Chacon Osuna, Cortes Planas, Cortit Olio, Delhomme Estany, Fructuos Martinez, Garcia Lopez, Pascual Luis, Genis Amill Vallve, Gonzalez Muñoz, Hernaez Ventura, Lavernia Gimenez, Martin Rojo, Martínez Medina, Mayol Barrera, Mercader Pi, Merino Dalmau, Miguel Campodarbe, Moreno Sanchez, Francisco Javier, Alba Mari, Penela Barrameda, Prieto Ajenjo, Rodriguez Pareja, Rodríguez Piñar, Javier Francisco, Rodriguez Tello, Romero Pereda, Sainz Saborido, Santacana Martin, Santos Martinez, Sierra Chavez, Turbau Torres, Vicente Domenech, Villena Esteo, Vives Pertegaz, Baena Gonzalez, Bagaria Pont, Beltran Sanchez, Bonet Alarcon, Borch Ballescà, Buhils Clanchet, Closa Garcia, Colomina Carril, Cristina Fernandez Sanchez, Fernandez Toledo Edurne Judith, Espases Rodriguez, Espert Resa, F Xavier, Fernández Sol, Gonzalez Lugo, Gracia Llesera, Herrada Lendinez, Juliench Liesa, Sandra Alicia, Lopez Ortega, Lopez Yuste, Lozano Villanueva, Lucia Sola Soto, Madrid Castellano, Megias Cano, Daniel Jesus, Montasell Ponce, Montesinos Sospedra, Moya Martinez, Muñoz Herrera, Ocaña Fernandez, Palau Bernal, Perez Sole, Ramon Carbonell, Ribas Lop, Rubio López, Rueda Lopez, Sabat Castaño, Sabata Lara, Salmerón Ramírez, Serra Creus, Serrano Dalmau, Sumasi Mainero, Gonzalo Gabriel, Valencia Primo, Ana Maria Viñuales Muñoz, Josep Roig, and Verònica Hidalgo.

Subjects
Stroke, Advanced and Specialized Nursing, Treatment Outcome, Endovascular Procedures, Humans, Neurology (clinical), Cardiology and Cardiovascular Medicine, Brain Ischemia, Ischemic Stroke, Thrombectomy, Workflow
Abstract

Background: We aim to compare the outcome of patients from urban areas, where the referral center is able to perform thrombectomy, with patients from nonurban areas enrolled in the RACECAT trial (Direct Transfer to an Endovascular Center Compared to Transfer to the Closest Stroke Center in Acute Stroke Patients With Suspected Large Vessel Occlusion). Methods: Patients with suspected large vessel occlusion stroke, as evaluated by a Rapid Arterial Occlusion Evaluation score of ≥5, from urban catchment areas of thrombectomy-capable centers during RACECAT trial enrollment period were included in the Stroke Code Registry of Catalonia. Primary outcome was disability at 90 days, as assessed by the shift analysis on the modified Rankin Scale score, in patients with an ischemic stroke. Secondary outcomes included mortality at 90 days, rate of thrombolysis and thrombectomy, time from onset to thrombolysis, and thrombectomy initiation. Propensity score matching was used to assemble a cohort of patients with similar characteristics. Results: The analysis included 1369 patients from nonurban areas and 2502 patients from urban areas. We matched 920 patients with an ischemic stroke from urban areas and nonurban areas based on their propensity scores. Patients with ischemic stroke from nonurban areas had higher degrees of disability at 90 days (median [interquartle range] modified Rankin Scale score, 3 [2–5] versus 3 [1–5], common odds ratio, 1.25 [95% CI, 1.06–1.48]); the observed average effect was only significant in patients with large vessel stroke (common odds ratio, 1.36 [95% CI, 1.08–1.65]). Mortality rate was similar between groups(odds ratio, 1.02 [95% CI, 0.81–1.28]). Patients from nonurban areas had higher odds of receiving thrombolysis (odds ratio, 1.36 [95% CI, 1.16–1.67]), lower odds of receiving thrombectomy(odds ratio, 0.61 [95% CI, 0.51–0.75]), and longer time from stroke onset to thrombolysis (mean difference 38 minutes [95% CI, 25–52]) and thrombectomy(mean difference 66 minutes [95% CI, 37–95]). Conclusions: In Catalonia, Spain, patients with large vessel occlusion stroke triaged in nonurban areas had worse neurological outcomes than patients from urban areas, where the referral center was able to perform thrombectomy. Interventions aimed at improving organizational practices and the development of thrombectomy capabilities in centers located in remote areas should be pursued. Registration: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT02795962.

Published
2022

8. Language impairment in the genetic forms of behavioural variant frontotemporal dementia

Author

Samra, Kiran, MacDougall, Amy M., Bouzigues, Arabella, Bocchetta, Martina, Cash, David M., Greaves, Caroline V., Convery, Rhian S., van Swieten, John C., Seelaar, Harro, Jiskoot, Lize, Moreno, Fermin, Gabilondo, Alazne, Gorostidi, Ana, Villanua, Jorge, Cañada, Marta, Tainta, Mikel, Zulaica, Miren, Barandiaran, Myriam, Alves, Patricia, Bender, Benjamin, Wilke, Carlo, Sanchez-Valle, Raquel, Graf, Lisa, Vogels, Annick, Vandenbulcke, Mathieu, Van Damme, Philip, Bruffaerts, Rose, Poesen, Koen, Rosa-Neto, Pedro, Gauthier, Serge, Camuzat, Agnès, Brice, Alexis, Laforce, Robert, Bertrand, Anne, Funkiewiez, Aurélie, Rinaldi, Daisy, Saracino, Dario, Colliot, Olivier, Sayah, Sabrina, Prix, Catharina, Wlasich, Elisabeth, Wagemann, Olivia, Loosli, Sandra, Graff, Caroline, Schönecker, Sonja, Hoegen, Tobias, Lombardi, Jolina, Anderl-Straub, Sarah, Rollin, Adeline, Kuchcinski, Gregory, Bertoux, Maxime, Lebouvier, Thibaud, Deramecourt, Vincent, Santiago, Beatriz, Masellis, Mario, Duro, Diana, Leitão, Maria João, Almeida, Maria Rosario, Tábuas-Pereira, Miguel, Afonso, Sónia, Tartaglia, Maria Carmela, Rowe, James B., Borroni, Barbara, Finger, Elizabeth, Synofzik, Matthis, Galimberti, Daniela, Vandenberghe, Rik, De Mendonça, Alexandre, Butler, Christopher R., Gerhard, Alexander, Ducharme, Simon, Le Ber, Isabelle, Tiraboschi, Pietro, Santana, Isabel, Pasquier, Florence, Levin, Johannes, Otto, Markus, Sorbi, Sandro, Rohrer, Jonathan D., Russell, Lucy L., Nelson, Annabel, Thomas, David L., Todd, Emily, Benotmane, Hanya, Nicholas, Jennifer, Shafei, Rachelle, Timberlake, Carolyn, Cope, Thomas, Rittman, Timothy, Benussi, Alberto, Premi, Enrico, Gasparotti, Roberto, Archetti, Silvana, Gazzina, Stefano, Cantoni, Valentina, Arighi, Andrea, Fenoglio, Chiara, Scarpini, Elio, Fumagalli, Giorgio, Borracci, Vittoria, Rossi, Giacomina, Giaccone, Giorgio, Di Fede, Giuseppe, Caroppo, Paola, Prioni, Sara, Redaelli, Veronica, Tang-Wai, David, Rogaeva, Ekaterina, Castelo-Branco, Miguel, Freedman, Morris, Keren, Ron, Black, Sandra, Mitchell, Sara, Shoesmith, Christen, Bartha, Robart, Rademakers, Rosa, Poos, Jackie, Papma, Janne M., Giannini, Lucia, van Minkelen, Rick, Pijnenburg, Yolande, Nacmias, Benedetta, Ferrari, Camilla, Polito, Cristina, Lombardi, Gemma, Bessi, Valentina, Veldsman, Michele, Andersson, Christin, Thonberg, Hakan, Öijerstedt, Linn, Jelic, Vesna, Thompson, Paul, Langheinrich, Tobias, Lladó, Albert, Antonell, Anna, Olives, Jaume, Balasa, Mircea, Bargalló, Nuria, Borrego-Ecija, Sergi, Verdelho, Ana, Maruta, Carolina, Ferreira, Catarina B., Miltenberger-Miltenyi, Gabriel, Simões Do Couto, Frederico, Neurology, Amsterdam Neuroscience - Neurodegeneration, Repositório da Universidade de Lisboa, Genetic FTD Initiative (GENFI), Erasmus MC other, Radiology & Nuclear Medicine, Clinical Genetics, Samra, Kiran [0000-0002-3105-7099], Apollo - University of Cambridge Repository, do Couto, Frederico Simões, Gabilondo, Alazne, Gorostidi, Ana, Villanua, Jorge, Cañada, Marta, Tainta, Mikel, Zulaica, Miren, Barandiaran, Myriam, Alves, Patricia, Bender, Benjamin, Wilke, Carlo, Graf, Lisa, Vogels, Annick, Vandenbulcke, Mathieu, Van Damme, Philip, Bruffaerts, Rose, Poesen, Koen, Rosa-Neto, Pedro, Gauthier, Serge, Camuzat, Agnès, Brice, Alexis, Bertrand, Anne, Funkiewiez, Aurélie, Rinaldi, Daisy, Saracino, Dario, Colliot, Olivier, Sayah, Sabrina, Prix, Catharina, Wlasich, Elisabeth, Wagemann, Olivia, Loosli, Sandra, Schönecker, Sonja, Hoegen, Tobias, Lombardi, Jolina, Anderl-Straub, Sarah, Rollin, Adeline, Kuchcinski, Gregory, Bertoux, Maxime, Lebouvier, Thibaud, Deramecourt, Vincent, Santiago, Beatriz, Duro, Diana, Leitão, Maria João, Almeida, Maria Rosario, Tábuas-Pereira, Miguel, Afonso, Sónia, Nelson, Annabel, Thomas, David L, Todd, Emily, Benotmane, Hanya, Nicholas, Jennifer, Shafei, Rachelle, Timberlake, Carolyn, Cope, Thomas, Rittman, Timothy, Benussi, Alberto, Premi, Enrico, Gasparotti, Roberto, Archetti, Silvana, Gazzina, Stefano, Cantoni, Valentina, Arighi, Andrea, Fenoglio, Chiara, Scarpini, Elio, Fumagalli, Giorgio, Borracci, Vittoria, Rossi, Giacomina, Giaccone, Giorgio, Di Fede, Giuseppe, Caroppo, Paola, Tiraboschi, Pietro, Prioni, Sara, Redaelli, Veronica, Tang-Wai, David, Rogaeva, Ekaterina, Castelo-Branco, Miguel, Freedman, Morris, Keren, Ron, Black, Sandra, Mitchell, Sara, Shoesmith, Christen, Bartha, Robart, Rademakers, Rosa, Poos, Jackie, Papma, Janne M, Giannini, Lucia, van Minkelen, Rick, Pijnenburg, Yolande, Nacmias, Benedetta, Ferrari, Camilla, Polito, Cristina, Lombardi, Gemma, Bessi, Valentina, Veldsman, Michele, Andersson, Christin, Thonberg, Hakan, Öijerstedt, Linn, Jelic, Vesna, Thompson, Paul, Langheinrich, Tobias, Lladó, Albert, Antonell, Anna, Olives, Jaume, Balasa, Mircea, Bargalló, Nuria, Borrego-Ecija, Sergi, Verdelho, Ana, Maruta, Carolina, Ferreira, Catarina B, and Miltenberger, Gabriel

Subjects
Progranulin, Medizin, genetics [Mutation], tau Proteins, diagnostic imaging [Frontotemporal Dementia], frontotemporal dementia, Settore BIO/13 - Biologia Applicata, C9orf72, progranulin, Genetics, Humans, genetics, Language Development Disorders, ddc:610, tau, genetics [Frontotemporal Dementia], genetics [C9orf72 Protein], Frontotemporal dementia, Language, Tau, language, C9orf72 Protein, Magnetic Resonance Imaging, genetics [tau Proteins], Neurology, FOS: Biological sciences, Frontotemporal Dementia, Mutation, Human medicine, Neurology (clinical), Atrophy
Abstract

Funder: CIBERNED, Funder: Lemaire Family Foundation, Funder: Swedish Frontotemporal Dementia Initiative Schorling Foundation, Funder: Swedish Alzheimer Foundation, Funder: Karolinska Institutet; doi: http://dx.doi.org/10.13039/501100004047, Funder: Weston Brain Institute; doi: http://dx.doi.org/10.13039/100012479, Funder: Miriam Marks Brain Research UK, BACKGROUND: Behavioural variant fronto-temporal dementia (bvFTD) is characterised by a progressive change in personality in association with atrophy of the frontal and temporal lobes. Whilst language impairment has been described in people with bvFTD, little is currently known about the extent or type of linguistic difficulties that occur, particularly in the genetic forms. METHODS: Participants with genetic bvFTD along with healthy controls were recruited from the international multicentre Genetic FTD Initiative (GENFI). Linguistic symptoms were assessed using items from the Progressive Aphasia Severity Scale (PASS). Additionally, participants undertook the Boston Naming Test (BNT), modified Camel and Cactus Test (mCCT) and a category fluency test. Participants underwent a 3T volumetric T1-weighted MRI, with language network regional brain volumes measured and compared between the genetic groups and controls. RESULTS: 76% of the genetic bvFTD cohort had impairment in at least one language symptom: 83% C9orf72, 80% MAPT and 56% GRN mutation carriers. All three genetic groups had significantly impaired functional communication, decreased fluency, and impaired sentence comprehension. C9orf72 mutation carriers also had significantly impaired articulation and word retrieval as well as dysgraphia whilst the MAPT mutation group also had impaired word retrieval and single word comprehension. All three groups had difficulties with naming, semantic knowledge and verbal fluency. Atrophy in key left perisylvian language regions differed between the groups, with generalised involvement in the C9orf72 group and more focal temporal and insula involvement in the other groups. Correlates of language symptoms and test scores also differed between the groups. CONCLUSIONS: Language deficits exist in a substantial proportion of people with familial bvFTD across all three genetic groups. Significant atrophy is seen in the dominant perisylvian language areas and correlates with language impairments within each of the genetic groups. Improved understanding of the language phenotype in the main genetic bvFTD subtypes will be helpful in future studies, particularly in clinical trials where accurate stratification and monitoring of disease progression is required.

Published
2023
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9. Early‐onset Alzheimer's disease shows a distinct neuropsychological profile and more aggressive trajectories of cognitive decline than late‐onset

Author

Adrià Tort‐Merino, Neus Falgàs, Isabel E. Allen, Mircea Balasa, Jaume Olives, José Contador, Magdalena Castellví, Jordi Juncà‐Parella, Núria Guillén, Sergi Borrego‐Écija, Bea Bosch, Guadalupe Fernández‐Villullas, Oscar Ramos‐Campoy, Anna Antonell, Lorena Rami, Raquel Sánchez‐Valle, and Albert Lladó

Subjects
General Neuroscience, Neurology (clinical)
Abstract

Early- and late-onset Alzheimer's disease (EOAD and LOAD) share the same neuropathological traits but show distinct cognitive features. We aimed to explore baseline and longitudinal outcomes of global and domain-specific cognitive function in a well characterized cohort of patients with a biomarker-based diagnosis.In this retrospective cohort study, 195 participants were included and classified according to their age, clinical status, and CSF AD biomarker profile: 89 EOAD, 37 LOAD, 46 young healthy controls (age ≤ 65 years), and 23 old healthy controls (65 years). All subjects underwent clinical and neuropsychological assessment, neuroimaging, APOE genotyping and lumbar puncture.We found distinct neuropsychological profiles between EOAD and LOAD at the time of diagnosis. Both groups showed similar performances on memory and language domains, but the EOAD patients displayed worsened deficits in visual perception, praxis, and executive tasks (p 0.05). Longitudinally, cognitive decline in EOAD was more pronounced than LOAD in the global outcomes at the expense of these non-amnestic domains. We found that years of education significantly influenced the decline in most of the neuropsychological tests. Besides, the APOE ε4 status showed a significant effect on the decline of memory-related tasks within the EOAD cohort (p 0.05).Age of onset is a main factor shaping the cognitive trajectories in AD patients, with younger age driving to a steeper decline of the non-memory domains. Years of education are related to a transversal decline in all cognitive domains and APOE ε4 status to a specific decline in memory performance in EOAD.

Published
2022

10. Neurodevelopmental effects of genetic frontotemporal dementia in young adult mutation carriers

Author

Finger, Elizabeth, Malik, Rubina, Bocchetta, Martina, Coleman, Kristy, Graff, Caroline, Borroni, Barbara, Masellis, Mario, Laforce, Robert, Greaves, Caroline V., Russell, Lucy L., Convery, Rhian S., Bouzigues, Arabella, Cash, David M., Otto, Markus, Synofzik, Matthis, Rowe, James B., Galimberti, Daniela, Tiraboschi, Pietro, Bartha, Robert, Shoesmith, Christen, Tartaglia, Maria Carmela, van Swieten, John C., Seelaar, Harro, Jiskoot, Lize C., Sorbi, Sandro, Butler, Chris R., Gerhard, Alexander, Sanchez-Valle, Raquel, De Mendonça, Alexandre, Moreno, Fermin, Vandenberghe, Rik, Le Ber, Isabelle, Levin, Johannes, Pasquier, Florence, Santana, Isabel, Rohrer, Jonathan D., Ducharme, Simon, Esteve, Aitana Sogorb, Heller, Carolin, Thomas, David L., Todd, Emily G., Nicholas, Jennifer, Benotmane, Hanya, Zetterberg, Henrik, Swift, Imogen J., Samra, Kiran, Shafei, Rachelle, Timberlake, Carolyn, Cope, Thomas, Rittman, Timothy, Benussi, Alberto, Premi, Enrico, Gasparotti, Roberto, Archetti, Silvana, Gazzina, Stefano, Cantoni, Valentina, Arighi, Andrea, Fenoglio, Chiara, Scarpini, Elio, Fumagalli, Giorgio, Borracci, Vittoria, Rossi, Giacomina, Giaccone, Giorgio, Di Fede, Giuseppe, Caroppo, Paola, Prioni, Sara, Redaelli, Veronica, Tang-Wai, David, Rogaeva, Ekaterina, Castelo-Branco, Miguel, Freedman, Morris, Keren, Ron, Black, Sandra, Mitchell, Sara, Rademakers, Rosa, Poos, Jackie, Papma, Janne M., Giannini, Lucia, van Minkelen, Rick, Pijnenburg, Yolande, Nacmias, Benedetta, Ferrari, Camilla, Polito, Cristina, Lombardi, Gemma, Bessi, Valentina, Veldsman, Michele, Andersson, Christin, Thonberg, Hakan, Öijerstedt, Linn, Jelic, Vesna, Thompson, Paul, Langheinrich, Tobias, Lladó, Albert, Antonell, Anna, Olives, Jaume, Balasa, Mircea, Bargalló, Nuria, Borrego-Ecija, Sergi, Verdelho, Ana, Maruta, Carolina, Ferreira, Catarina B., Miltenberger-Miltenyi, Gabriel, Simões Do Couto, Frederico, Gabilondo, Alazne, Gorostidi, Ana, Villanua, Jorge, Cañada, Marta, Tainta, Mikel, Zulaica, Miren, Barandiaran, Myriam, Alves, Patricia, Bender, Benjamin, Wilke, Carlo, Graf, Lisa, Vogels, Annick, Vandenbulcke, Mathieu, Van Damme, Philip, Bruffaerts, Rose, Poesen, Koen, Rosa Neto, Pedro, Gauthier, Serge, Camuzat, Agnès, Brice, Alexis, Bertrand, Anne, Funkiewiez, Aurélie, Rinaldi, Daisy, Saracino, Dario, Colliot, Olivier, Sayah, Sabrina, Prix, Catharina, Wlasich, Elisabeth, Wagemann, Olivia, Loosli, Sandra, Schönecker, Sonja, Hoegen, Tobias, Lombardi, Jolina, Anderl-Straub, Sarah, Rollin, Adeline, Kuchcinski, Gregory, Bertoux, Maxime, Lebouvier, Thibaud, Deramecourt, Vincent, Santiago, Beatriz, Duro, Diana, Leitão, Maria João, Almeida, Maria Rosario, Tábuas-Pereira, Miguel, Afonso, Sónia, Genetic FTD Initiative, GENFI, the Genetic FTD Initiative (GENFI), Repositório da Universidade de Lisboa, Bocchetta, Martina [0000-0003-1814-5024], Graff, Caroline [0000-0002-9949-2951], Borroni, Barbara [0000-0001-9340-9814], Cash, David M [0000-0001-7833-616X], Synofzik, Matthis [0000-0002-2280-7273], Seelaar, Harro [0000-0003-1989-7527], Jiskoot, Lize C [0000-0002-8120-7366], Gerhard, Alexander [0000-0002-8071-6062], Sanchez-Valle, Raquel [0000-0001-7750-896X], Vandenberghe, Rik [0000-0001-6237-2502], Pasquier, Florence [0000-0001-9880-9788], Ducharme, Simon [0000-0002-7309-1113], Apollo - University of Cambridge Repository, Neurology, Verdelho, Ana, Maruta, Carolina, Ferreira, Catarina B, Miltenberger, Gabriel, do Couto, Frederico Simões, Gabilondo, Alazne, Gorostidi, Ana, Villanua, Jorge, Cañada, Marta, Tainta, Mikel, Zulaica, Miren, Barandiaran, Myriam, Alves, Patricia, Bender, Benjamin, Wilke, Carlo, Graf, Lisa, Vogels, Annick, Vandenbulcke, Mathieu, Van Damme, Philip, Bruffaerts, Rose, Poesen, Koen, Rosa-Neto, Pedro, Gauthier, Serge, Camuzat, Agnès, Brice, Alexis, Bertrand, Anne, Funkiewiez, Aurélie, Rinaldi, Daisy, Saracino, Dario, Colliot, Olivier, Sayah, Sabrina, Prix, Catharina, Wlasich, Elisabeth, Wagemann, Olivia, Loosli, Sandra, Schönecker, Sonja, Hoegen, Tobias, Lombardi, Jolina, Anderl-Straub, Sarah, Rollin, Adeline, Kuchcinski, Gregory, Bertoux, Maxime, Lebouvier, Thibaud, Deramecourt, Vincent, Santiago, Beatriz, Duro, Diana, Leitão, Maria João, Almeida, Maria Rosario, Tábuas-Pereira, Miguel, Afonso, Sónia, Esteve, Aitana Sogorb, Heller, Carolin, Thomas, David L, Todd, Emily G, Nicholas, Jennifer, Benotmane, Hanya, Zetterberg, Henrik, Swift, Imogen J, Samra, Kiran, Shafei, Rachelle, Timberlake, Carolyn, Cope, Thomas, Rittman, Timothy, Benussi, Alberto, Premi, Enrico, Gasparotti, Roberto, Archetti, Silvana, Gazzina, Stefano, Cantoni, Valentina, Arighi, Andrea, Fenoglio, Chiara, Scarpini, Elio, Fumagalli, Giorgio, Borracci, Vittoria, Rossi, Giacomina, Giaccone, Giorgio, Di Fede, Giuseppe, Caroppo, Paola, Tiraboschi, Pietro, Prioni, Sara, Redaelli, Veronica, Tang-Wai, David, Rogaeva, Ekaterina, Castelo-Branco, Miguel, Freedman, Morris, Keren, Ron, Black, Sandra, Mitchell, Sara, Rademakers, Rosa, Poos, Jackie, Papma, Janne M, Giannini, Lucia, van Minkelen, Rick, Pijnenburg, Yolande, Nacmias, Benedetta, Ferrari, Camilla, Polito, Cristina, Lombardi, Gemma, Bessi, Valentina, Veldsman, Michele, Andersson, Christin, Thonberg, Hakan, Öijerstedt, Linn, Jelic, Vesna, Thompson, Paul, Langheinrich, Tobias, Lladó, Albert, Antonell, Anna, Olives, Jaume, Balasa, Mircea, Bargalló, Nuria, and Borrego-Ecija, Sergi

Subjects
Adult, C9orf72 Protein, neurodevelopment, Nocturnal pulsed oximetry, Medizin, Brain, Neurodegenerative Diseases, tau Proteins, Amyotrophic lateral sclerosis, frontotemporal dementia, Phrenic nerve, Young Adult, Progranulins, Pick Disease of the Brain, Respiratory tests, Mutation, C9orf72, MAPT, Humans, ddc:610, Neurology (clinical), Human medicine, GRN, Respiratory function
Abstract

© The Author(s) 2023. Published by Oxford University Press on behalf of the Guarantors of Brain. All rights reserved., While frontotemporal dementia has been considered a neurodegenerative disease that starts in mid-life or later, it is now clearly established that cortical and subcortical volume loss is observed more than a decade prior to symptom onset and progresses with ageing. To test the hypothesis that genetic mutations causing frontotemporal dementia have neurodevelopmental consequences, we examined the youngest adults in the GENFI cohort of pre-symptomatic frontotemporal dementia mutation carriers who are between 19 and 30 years of age. Structural brain differences and improved performance on some cognitive tests were found for MAPT and GRN mutation carriers relative to familial non-carriers, while smaller volumes were observed in C9orf72 repeat expansion carriers at a mean age of 26 years. The detection of such early differences supports potential advantageous neurodevelopmental consequences of some frontotemporal dementia-causing genetic mutations. These results have implications for the design of therapeutic interventions for frontotemporal dementia. Future studies at younger ages are needed to identify specific early pathophysiologic or compensatory processes that occur during the neurodevelopmental period., This project was supported by Canadian Institutes of Health Research as part of a Centres of Excellence in Neurodegeneration grant, and by Canadian Institutes of Health Research operating grants (327387; 452843; 70797). The Dementia Research Centre is supported by Alzheimer’s Research UK, Alzheimer’s Society, Brain Research UK, and The Wolfson Foundation. This work was supported by the National Institute for Health Research (NIHR) Queen Square Dementia Biomedical Research Unit and the University College London Hospitals Biomedical Research Centre, the Leonard Wolfson Experimental Neurology Centre (LWENC), and the UK Dementia Research Institute, which receives its funding from UK DRI Ltd, funded by the UK Medical Research Council, Alzheimer’s Society and Alzheimer’s Research UK. This work was also supported by the MRC UK GENFI grant (MR/M023664/1), the Italian Ministry of Health (CoEN015 and Ricerca Corrente), the Alzheimer’s Society grant (AS-PG-16-007), the Bluefield Project and the EU Joint Programme – Neurodegenerative Disease Research (GENFI-PROX grant 2019-02248). M.B. is supported by a Fellowship award from the Alzheimer’s Society, UK (AS-JF-19a- 004-517). M.B.’s work was also supported by the UK Dementia Research Institute which receives its funding from DRI Ltd., funded by the UK Medical Research Council, Alzheimer’s Society and Alzheimer’s Research UK. J.D.R. is supported by the Miriam Marks Brain Research UK Senior Fellowship and has received funding from an MRC Clinician Scientist Fellowship (MR/M008525/1) and the NIHR Rare Disease Translational Research Collaboration (BRC149/NS/MH). J.B.R. is funded by the Wellcome Trust (103838) and the National Institute for Health Research Cambridge Biomedical Research Centre. This work was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy within the framework of the Munich Cluster for Systems Neurology (EXC 2145 SyNergy – ID 390857198). It is also funded by the Ministry of Health, Italy (S.S.). R.V.’s work is supported by the Mady Browaeys Fonds voor Onderzoek naar Frontotemporale Degeneratie. R.S.-V.’s work is supported by Instituto de Salud Carlos III (grant number 20/00448), cofunded by the EU. ANR-PRTS PrevdemALS study funding (I.L.B.). Several authors of this publication (J.C.vS., M.S., A.D., M.O., R.V., I.L.B., J.D.R.) are members of the European Reference Network for Rare Neurological Diseases (ERN-RND) - Project ID No 739510.

Published
2023

11. Temporal dynamics predict symptom onset and cognitive decline in familial frontotemporal dementia

Author

Whiteside, David J, Malpetti, Maura, Jones, P Simon, Ghosh, Boyd CP, Coyle‐Gilchrist, Ian, van Swieten, John C, Seelaar, Harro, Jiskoot, Lize, Borroni, Barbara, Sanchez‐Valle, Raquel, Moreno, Fermin, Laforce, Robert, Graff, Caroline, Synofzik, Matthis, Galimberti, Daniela, Masellis, Mario, Tartaglia, Maria Carmela, Finger, Elizabeth, Vandenberghe, Rik, de Mendonça, Alexandre, Tagliavini, Fabrizio, Butler, Chris R, Santana, Isabel, Ber, Isabelle Le, Gerhard, Alexander, Ducharme, Simon, Levin, Johannes, Danek, Adrian, Otto, Markus, Sorbi, Sandro, Pasquier, Florence, Bouzigues, Arabella, Russell, Lucy L, Rohrer, Jonathan D, Rowe, James B, Rittman, Timothy, Esteve, Aitana Sogorb, Nelson, Annabel, Heller, Carolin, Greaves, Caroline V, Cash, David, Thomas, David L, Todd, Emily, Benotmane, Hanya, Zetterberg, Henrik, Swift, Imogen J, Nicholas, Jennifer, Samra, Kiran, Bocchetta, Martina, Shafei, Rachelle, Convery, Rhian S, Timberlake, Carolyn, Cope, Thomas, Benussi, Alberto, Premi, Enrico, Gasparotti, Roberto, Archetti, Silvana, Gazzina, Stefano, Cantoni, Valentina, Arighi, Andrea, Fenoglio, Chiara, Scarpini, Elio, Fumagalli, Giorgio, Borracci, Vittoria, Rossi, Giacomina, Giaccone, Giorgio, Di Fede, Giuseppe, Caroppo, Paola, Tiraboschi, Pietro, Prioni, Sara, Redaelli, Veronica, Tang‐Wai, David, Rogaeva, Ekaterina, Castelo‐Branco, Miguel, Freedman, Morris, Keren, Ron, Black, Sandra, Mitchell, Sara, Shoesmith, Christen, Bartha, Robart, Rademakers, Rosa, Poos, Jackie, Papma, Janne M, Giannini, Lucia, van Minkelen, Rick, Pijnenburg, Yolande, Ferrari, Camilla, Polito, Cristina, Lombardi, Gemma, Bessi, Valentina, Veldsman, Michele, Andersson, Christin, Thonberg, Hakan, Öijerstedt, Linn, Jelic, Vesna, Thompson, Paul, Langheinrich, Tobias, Lladó, Albert, Antonell, Anna, Olives, Jaume, Balasa, Mircea, Bargalló, Nuria, Borrego‐Ecija, Sergi, Verdelho, Ana, Maruta, Carolina, Ferreira, Catarina B, Miltenberger, Gabriel, Simões do Couto, Frederico, Gabilondo, Alazne, Gorostidi, Ana, Villanua, Jorge, Cañada, Marta, Tainta, Mikel, Zulaica, Miren, Barandiaran, Myriam, Alves, Patricia, Bender, Benjamin, Wilke, Carlo, Graf, Lisa, Vogels, Annick, Vandenbulcke, Mathieu, Van Damme, Philip, Bruffaerts, Rose, Poesen, Koen, Rosa‐Neto, Pedro, Gauthier, Serge, Camuzat, Agnès, Brice, Alexis, Bertrand, Anne, Funkiewiez, Aurélie, Rinaldi, Daisy, Colliot, Olivier, Sayah, Sabrina, Prix, Catharina, Wlasich, Elisabeth, Wagemann, Olivia, Loosli, Sandra, Schönecker, Sonja, Hoegen, Tobias, Lombardi, Jolina, Anderl‐Straub, Sarah, Rollin, Adeline, Kuchcinski, Gregory, Bertoux, Maxime, Lebouvier, Thibaud, Deramecourt, Vincent, Santiago, Beatriz, Duro, Diana, Leitão, Maria João, Almeida, Maria Rosario, Tábuas‐Pereira, Miguel, Afonso, Sónia, Engel, Annerose, Polyakova, Maryna, Whiteside, David [0000-0002-5890-9220], Apollo - University of Cambridge Repository, GENFI Consortium, Repositório da Universidade de Lisboa, Langheinrich, Tobias, Lladó, Albert, Antonell, Anna, Olives, Jaume, Balasa, Mircea, Bargalló, Nuria, Borrego-Ecija, Sergi, Verdelho, Ana, Maruta, Carolina, Ferreira, Catarina B, Miltenberger, Gabriel, Simões do Couto, Frederico, Gabilondo, Alazne, Gorostidi, Ana, Villanua, Jorge, Cañada, Marta, Tainta, Mikel, Zulaica, Miren, Barandiaran, Myriam, Alves, Patricia, Bender, Benjamin, Wilke, Carlo, Graf, Lisa, Vogels, Annick, Vandenbulcke, Mathieu, Van Damme, Philip, Bruffaerts, Rose, Poesen, Koen, Rosa-Neto, Pedro, Gauthier, Serge, Camuzat, Agnès, Brice, Alexis, Bertrand, Anne, Funkiewiez, Aurélie, Rinaldi, Daisy, Colliot, Olivier, Sayah, Sabrina, Prix, Catharina, Wlasich, Elisabeth, Wagemann, Olivia, Loosli, Sandra, Schönecker, Sonja, Hoegen, Tobias, Lombardi, Jolina, Anderl-Straub, Sarah, Rollin, Adeline, Kuchcinski, Gregory, Bertoux, Maxime, Lebouvier, Thibaud, Deramecourt, Vincent, Santiago, Beatriz, Duro, Diana, Leitão, Maria João, Almeida, Maria Rosario, Tábuas-Pereira, Miguel, Afonso, Sónia, Engel, Annerose, Polyakova, Maryna, Esteve, Aitana Sogorb, Nelson, Annabel, Bouzigues, Arabella, Heller, Carolin, Greaves, Caroline V, Cash, David, Thomas, David L, Todd, Emily, Benotmane, Hanya, Zetterberg, Henrik, Swift, Imogen J, Nicholas, Jennifer, Samra, Kiran, Russell, Lucy L, Bocchetta, Martina, Shafei, Rachelle, Convery, Rhian S, Timberlake, Carolyn, Cope, Thomas, Rittman, Timothy, Benussi, Alberto, Premi, Enrico, Gasparotti, Roberto, Archetti, Silvana, Gazzina, Stefano, Cantoni, Valentina, Arighi, Andrea, Fenoglio, Chiara, Scarpini, Elio, Fumagalli, Giorgio, Borracci, Vittoria, Rossi, Giacomina, Giaccone, Giorgio, Di Fede, Giuseppe, Caroppo, Paola, Tiraboschi, Pietro, Prioni, Sara, Redaelli, Veronica, Tang-Wai, David, Rogaeva, Ekaterina, Castelo-Branco, Miguel, Freedman, Morris, Keren, Ron, Black, Sandra, Mitchell, Sara, Shoesmith, Christen, Bartha, Robart, Rademakers, Rosa, Poos, Jackie, Papma, Janne M, Giannini, Lucia, van Minkelen, Rick, Pijnenburg, Yolande, Ferrari, Camilla, Polito, Cristina, Lombardi, Gemma, Bessi, Valentina, Veldsman, Michele, Andersson, Christin, Thonberg, Hakan, Öijerstedt, Linn, Jelic, Vesna, Thompson, Paul, and Neurology

Subjects
Epidemiology, FEATURED ARTICLE, Medizin, Clinical Neurology, NETWORK CONNECTIVITY, frontotemporal dementia, disease progression, functional magnetic resonance imaging (fMRI), network dynamics, presymptomatic, DISEASE, Cellular and Molecular Neuroscience, Developmental Neuroscience, SDG 3 - Good Health and Well-being, Humans, Cognitive Dysfunction, ddc:610, BRAIN, BATTERY, Science & Technology, Health Policy, Brain, FUNCTIONAL CONNECTIVITY, Magnetic Resonance Imaging, STATE, TIME, Psychiatry and Mental health, COMPENSATION, Frontotemporal Dementia, Mutation, FEATURED ARTICLES, Neurology (clinical), Human medicine, Neurosciences & Neurology, Geriatrics and Gerontology, Life Sciences & Biomedicine
Abstract

© 2022 The Authors. Alzheimer's & Dementia published by Wiley Periodicals LLC on behalf of Alzheimer's Association. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited., Introduction: We tested whether changes in functional networks predict cognitive decline and conversion from the presymptomatic prodrome to symptomatic disease in familial frontotemporal dementia (FTD). Methods: For hypothesis generation, 36 participants with behavioral variant FTD (bvFTD) and 34 controls were recruited from one site. For hypothesis testing, we studied 198 symptomatic FTD mutation carriers, 341 presymptomatic mutation carriers, and 329 family members without mutations. We compared functional network dynamics between groups, with clinical severity and with longitudinal clinical progression. Results: We identified a characteristic pattern of dynamic network changes in FTD, which correlated with neuropsychological impairment. Among presymptomatic mutation carriers, this pattern of network dynamics was found to a greater extent in those who subsequently converted to the symptomatic phase. Baseline network dynamic changes predicted future cognitive decline in symptomatic participants and older presymptomatic participants. Discussion: Dynamic network abnormalities in FTD predict cognitive decline and symptomatic conversion. Highlights: We investigated brain network predictors of dementia symptom onset Frontotemporal dementia results in characteristic dynamic network patterns Alterations in network dynamics are associated with neuropsychological impairment Network dynamic changes predict symptomatic conversion in presymptomatic carriers Network dynamic changes are associated with longitudinal cognitive decline., GENFI was funded by the Medical Research Council UK (MR/M023664/1), the Bluefield Project, the JPND GENFI-PROX grant (by DLR/BMBF 2019-02248) and by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy within the framework of the Munich Cluster for Systems Neurology (EXC 2145 SyNergy – ID 390857198). The study was co-funded by the National Institute for Health Research (NIHR) Biomedical Research Centre at Cambridge University Hospitals NHS Foundation Trust and the University of Cambridge (BRC-1215-20014), the Cambridge Centre for Parkinson-plus (RG95450); the Wellcome Trust (220258); the Evelyn Trust (17/09) and Medical Research Council (SUAG/092 116768).

Published
2022

12. A data-driven disease progression model of fluid biomarkers in genetic frontotemporal dementia

Author

Ione O.C. Woollacott, Cristina Polito, Philip Van Damme, Mathieu Vandenbulcke, Rose Bruffaerts, Diana Duro, Chiara Fenoglio, David M. Cash, Maria Rosário Almeida, Sonja Schönecker, C. Ferreira, Sónia Afonso, Matthis Synofzik, Sara Prioni, Marta Cañada, Mikel Tainta, Miguel Tábuas-Pereira, Christin Andersson, Caroline Graff, Miguel Castelo-Branco, Enrico Premi, Håkan Thonberg, Fabrizio Tagliavini, Rachelle Shafei, Benjamin Bender, Ana Gorostidi, Maria João Leitão, Jennifer M. Nicholas, Elise G.P. Dopper, Silvana Archetti, Esther E. Bron, Ana Verdelho, Ron Keren, Isabel Santana, Christen Shoesmith, Pietro Tiraboschi, Sergi Borrego-Écija, Michela Pievani, Sandro Sorbi, Rick van Minkelen, Hans-Otto Karnath, Albert Lladó, Caroline V. Greaves, Jaume Olives, Alessandro Padovani, Miren Zulaica, Giuliano Binetti, Martin Rosser, Pedro Rosa-Neto, Vesna Jelic, Alexander Gerhard, Rosa Rademakers, Sandra E. Black, Wiro J. Niessen, Tobias Hoegen, Rhian S Convery, Janne M. Papma, Maria Carmela Tartaglia, Emily Todd, Adrian Danek, Rita Guerreiro, Robart Bartha, Linn Öijerstedt, Giuseppe Di Fede, Sebastien Ourselin, Núria Bargalló, James B. Rowe, Christopher C Butler, Giorgio G. Fumagalli, Valentina Bessi, Alberto Benussi, Nick C. Fox, Beatriz Santiago, Ekaterina Rogaeva, Alazne Gabilondo, Giacomina Rossi, Mircea Balasa, David L. Thomas, Benedetta Nacmias, Veronica Redaelli, Anna Antonell, Vikram Venkatraghavan, Jonathan D. Rohrer, Jackie M. Poos, Yolande A.L. Pijnenburg, Lieke H.H. Meeter, Carlo Wilke, Sandra V. Loosli, Elio Scarpini, Tobias Langheinrich, Alina Díez, Elisa Semler, Elizabeth Finger, Begoña Indakoetxea, Jessica L. Panman, Carolyn Timberlake, Gemma Lombardi, Luisa Benussi, Morris Freedman, Barbara Borroni, Ricardo Taipa, Johannes Levin, Thomas E. Cope, Paul M. Thompson, Giorgio Giaccone, Valentina Cantoni, Arabella Bouzigues, Jose Bras, Serge Gauthier, Andrea Arighi, Stefan Klein, Fermin Moreno, Markus Otto, Georgia Peakman, Emma L. van der Ende, David F. Tang-Wai, Sarah Anderl-Straub, Jason D. Warren, Alexandre de Mendonça, Camilla Ferrari, Elisabeth Wlasich, Catharina Prix, Michele Veldsman, Raquel Sánchez-Valle, Sara Mitchell, Carolina Maruta, Robert Laforce, Paola Caroppo, Jorge Villanua, Imogen J Swift, Harro Seelaar, Henrik Zetterberg, Simon Mead, Simon Ducharme, Myriam Barandiaran, Katrina M. Moore, John C. van Swieten, Gabriel Miltenberger, Mario Masellis, Timothy Rittman, Lize C. Jiskoot, Daniela Galimberti, Rik Vandenberghe, Carolin Heller, Stefano Gazzina, Aitana Sogorb-Esteve, Roberto Gasparotti, Martina Bocchetta, Neurology, Amsterdam Neuroscience - Neurodegeneration, Repositório da Universidade de Lisboa, Radiology & Nuclear Medicine, and Neurosurgery

Subjects
Oncology, medicine.medical_specialty, Medizin, tau Proteins, Disease, medicine.disease_cause, frontotemporal dementia, biomarker, disease progression model, event-based modelling, neurofilament light chain, Biomarkers, C9orf72 Protein, Complement C1q, Cross-Sectional Studies, Disease Progression, Glial Fibrillary Acidic Protein, Humans, Longitudinal Studies, Mutation, Frontotemporal Dementia, diagnosis [Frontotemporal Dementia], Settore BIO/13 - Biologia Applicata, C9orf72, Internal medicine, Medicine, ddc:610, genetics [C9orf72 Protein], genetics [Frontotemporal Dementia], business.industry, medicine.disease, Astrogliosis, genetics [tau Proteins], Cohort, Biomarker (medicine), Neurology (clinical), Sample collection, business, Frontotemporal dementia
Abstract

© The Author(s) (2021). Published by Oxford University Press on behalf of the Guarantors of Brain. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (https://creativecommons.org/licenses/ by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com, Several CSF and blood biomarkers for genetic frontotemporal dementia have been proposed, including those reflecting neuroaxonal loss (neurofilament light chain and phosphorylated neurofilament heavy chain), synapse dysfunction [neuronal pentraxin 2 (NPTX2)], astrogliosis (glial fibrillary acidic protein) and complement activation (C1q, C3b). Determining the sequence in which biomarkers become abnormal over the course of disease could facilitate disease staging and help identify mutation carriers with prodromal or early-stage frontotemporal dementia, which is especially important as pharmaceutical trials emerge. We aimed to model the sequence of biomarker abnormalities in presymptomatic and symptomatic genetic frontotemporal dementia using cross-sectional data from the Genetic Frontotemporal dementia Initiative (GENFI), a longitudinal cohort study. Two-hundred and seventy-five presymptomatic and 127 symptomatic carriers of mutations in GRN, C9orf72 or MAPT, as well as 247 non-carriers, were selected from the GENFI cohort based on availability of one or more of the aforementioned biomarkers. Nine presymptomatic carriers developed symptoms within 18 months of sample collection ('converters'). Sequences of biomarker abnormalities were modelled for the entire group using discriminative event-based modelling (DEBM) and for each genetic subgroup using co-initialized DEBM. These models estimate probabilistic biomarker abnormalities in a data-driven way and do not rely on previous diagnostic information or biomarker cut-off points. Using cross-validation, subjects were subsequently assigned a disease stage based on their position along the disease progression timeline. CSF NPTX2 was the first biomarker to become abnormal, followed by blood and CSF neurofilament light chain, blood phosphorylated neurofilament heavy chain, blood glial fibrillary acidic protein and finally CSF C3b and C1q. Biomarker orderings did not differ significantly between genetic subgroups, but more uncertainty was noted in the C9orf72 and MAPT groups than for GRN. Estimated disease stages could distinguish symptomatic from presymptomatic carriers and non-carriers with areas under the curve of 0.84 (95% confidence interval 0.80-0.89) and 0.90 (0.86-0.94) respectively. The areas under the curve to distinguish converters from non-converting presymptomatic carriers was 0.85 (0.75-0.95). Our data-driven model of genetic frontotemporal dementia revealed that NPTX2 and neurofilament light chain are the earliest to change among the selected biomarkers. Further research should investigate their utility as candidate selection tools for pharmaceutical trials. The model's ability to accurately estimate individual disease stages could improve patient stratification and track the efficacy of therapeutic interventions., This study was supported in the Netherlands by two Memorabel grants from Deltaplan Dementie (The Netherlands Organisation for Health Research and Development and Alzheimer Nederland; grant numbers 733050813,733050103 and 733050513), the Bluefield Project to Cure Frontotemporal Dementia, the Dioraphte foundation (grant number 1402 1300), the European Joint Programme—Neurodegenerative Disease Research and the Netherlands Organisation for Health Research and Development (PreFrontALS: 733051042, RiMod-FTD: 733051024); V.V. and S.K. have received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement no. 666992 (EuroPOND). E.B. was supported by the Hartstichting (PPP Allowance, 2018B011); in Belgium by the Mady Browaeys Fonds voor Onderzoek naar Frontotemporale Degeneratie; in the UK by the MRC UK GENFI grant (MR/M023664/1); J.D.R. is supported by an MRC Clinician Scientist Fellowship (MR/M008525/1) and has received funding from the NIHR Rare Disease Translational Research Collaboration (BRC149/NS/MH); I.J.S. is supported by the Alzheimer’s Association; J.B.R. is supported by the Wellcome Trust (103838); in Spain by the Fundació Marató de TV3 (20143810 to R.S.V.); in Germany by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy within the framework of the Munich Cluster for Systems Neurology (EXC 2145 SyNergy—ID 390857198) and by grant 779357 ‘Solve-RD’ from the Horizon 2020 Research and Innovation Programme (to MS); in Sweden by grants from the Swedish FTD Initiative funded by the Schörling Foundation, grants from JPND PreFrontALS Swedish Research Council (VR) 529–2014-7504, Swedish Research Council (VR) 2015–02926, Swedish Research Council (VR) 2018–02754, Swedish Brain Foundation, Swedish Alzheimer Foundation, Stockholm County Council ALF, Swedish Demensfonden, Stohnes foundation, Gamla Tjänarinnor, Karolinska Institutet Doctoral Funding and StratNeuro. H.Z. is a Wallenberg Scholar.

Published
2022

13. Casemix, management, and mortality of patients receiving emergency neurosurgery for traumatic brain injury in the Global Neurotrauma Outcomes Study: a prospective observational cohort study

Author

David Clark, Alexis Joannides, Amos Olufemi Adeleye, Abdul Hafid Bajamal, Tom Bashford, Hagos Biluts, Karol Budohoski, Ari Ercole, Rocío Fernández-Méndez, Anthony Figaji, Deepak Kumar Gupta, Roger Härtl, Corrado Iaccarino, Tariq Khan, Tsegazeab Laeke, Andrés Rubiano, Hamisi K Shabani, Kachinga Sichizya, Manoj Tewari, Abenezer Tirsit, Myat Thu, Manjul Tripathi, Rikin Trivedi, Bhagavatula Indira Devi, Franco Servadei, David Menon, Angelos Kolias, Peter Hutchinson, Ghayur Abbas, Omar Ibrahim Abdallah, Ahmed Abdel-Lateef, Khalif Abdifatah, Awfa Abdullateef, Ruvini Abeygunaratne, Mostafa Aboellil, Abass Adam, Robert Adams, Amos Adeleye, Augustine Adeolu, Novan Krisno Adji, Nur Afianti, Sudarsan Agarwal, Ifeanyi Kene Aghadi, Paúl Martín Méndez Aguilar, Syeda Rida Ahmad, Daniyal Ahmed, Nafees Ahmed, Haider Aizaz, Yunus Kuntawi Aji, Alex Alamri, Augusto Jacinto Mussindo Alberto, Luis Alcocer Alcocer, Lesly Gonzales Alfaro, Amro Al-Habib, Ahmad Alhourani, Syed Muhammad Rafay Ali, Fahad Alkherayf, Ahmed AlMenabbawy, Aliyah Alshareef, Muhammad Adil s/o Aminullah, Madeha Amjad, Robson Luis Oliveira de Amorim, Sathiaprabhu Anbazhagan, Almir Andrade, Waleed Antar, Theophilus T.K. Anyomih, Salah Aoun, Tedy Apriawan, Daniele Armocida, Paul Arnold, Miguel Arraez, Temesgen Assefa, Andres Asser, S.P. Athiththan, Deepal Attanayake, Maung Maung Aung, Allan Avi, Victor Enrique Antolinez Ayala, Mohammed Azab, Gaousul Azam, Mohd Azharuddin, Olukemi Badejo, Mohamed Badran, Azam Ali Baig, Rehman Ali Baig, Ankur Bajaj, Paul Baker, Renu Bala, Artur Balasa, Ross Balchin, James Balogun, Vin Shen Ban, Bharath Kumar Reddy Bandi, Soham Bandyopadhyay, Matthew Bank, Ernest Barthelemy, Mohammed Talha Bashir, Luciano Silveira Basso, Surajit Basu, Auricelio Batista, Marlies Bauer, Devi Bavishi, Abi Beane, Shmuel Bejell, Anteneh Belachew, Antonio Belli, Amani Belouaer, Najia El Abbadi Bendahane, Okanga Benjamin, Youssef Benslimane, Chaymae Benyaiche, Claudio Bernucci, Luigi Valentino Berra, Arnold Bhebe, Alexios Bimpis, Diana Blanaru, Jean Claude Bonfim, Luis A B Borba, Alp Ozgun Borcek, Erika Borotto, Ahmad Elmabri Mohammad Bouhuwaish, Facundo Bourilhon, Gioia Brachini, Joshua Breedon, Maximilian Broger, Giacoma Maria Floriana Brunetto, Placido Bruzzaniti, Natalia Budohoska, Hira Burhan, Maximiliano Luis Calatroni, Catherine Camargo, Pier Francesco Cappai, Salvatore Massimiliano Cardali, Ana M Castaño-Leon, David Cederberg, Mikel Celaya, Marco Cenzato, Lakshmi Madhavi Challa, Dhanny Charest, Bipin Chaurasia, Rabah Chenna, Iype Cherian, Juliana Henry Ching'o, Tejas Chotai, Ajay Choudhary, Nabeel Choudhary, Florence Choumin, Tomislav Cigic, Juan Ciro, Carlo Conti, Antônio Carlos de Souza Corrêa, Giulia Cossu, Maíra Piani Couto, Aurora Cruz, Divya D'Silva, Giuseppe Antonio D'Aliberti, Lamin Dampha, Roy Thomas Daniel, Andrew Dapaah, Aneela Darbar, Gabriel Dascalu, Happy Amos Dauda, Owain Davies, Andrea Delgado-Babiano, Markus Dengl, Marko Despotovic, Indira Devi, Celeste Dias, Mohamed Dirar, Melina Dissanayake, Hananiah Djimbaye, Simon Dockrell, Ali Dolachee, Julija Dolgopolova, Muge Dolgun, Abdalrouf Dow, Davide Drusiani, Artjom Dugan, Dinh Tuan Duong, Trung Kien Duong, Tomasz Dziedzic, Ali Ebrahim, Nizar El Fatemi, Antonios El El Helou, Rachid El El Maaqili, Brahim El El Mostarchid, Abdessamad El El Ouahabi, Mohammad Elbaroody, Ahmed El-Fiki, Ahmed El-Garci, Nasser M.F. El-Ghandour, Muhammed Elhadi, Vanessa Elleder, Safa Elrais, Mohamed El-shazly, Mohamed Elshenawy, Hesham Elshitany, Omar El-Sobky, Marwa Emhamed, Basil Enicker, Onur Erdogan, Sebastian Ertl, Ignatius Esene, Omar Ocampo Espinosa, Tarig Fadalla, Mohammed Fadelalla, Rodrigo Moreira Faleiro, Nida Fatima, Charbel Fawaz, Assefa Fentaw, Carla Eiriz Fernandez, Ana Ferreira, Francesco Ferri, Tony Figaji, Emerson L B Filho, Loic Fin, Benjamin Fisher, Fitra Fitra, Alexis Palpan Flores, Ioan Stefan Florian, Vincenzo Fontana, Lauren Ford, Daniel Fountain, Jose Maria Roda Frade, Antonio Fratto, Christian Freyschlag, Aranzazu Sánchez Gabin, Clare Gallagher, Mario Ganau, Maria Luisa Gandia-Gonzalez, Andoni Garcia, Borja Hernandez Garcia, Sanjeewa Garusinghe, Biniam Gebreegziabher, Adrian Gelb, Jerome St George, Antonino Francesco Germanò, Ilaria Ghetti, Prajwal Ghimire, Alessandro Giammarusti, Jose Luis Gil, Panagiota Gkolia, Yoseph Godebo, Prakash Rao Gollapudi, Jagos Golubovic, Jeremias Fernando Gomes, Javier Gonzales, William Gormley, Alexander Gots, Giulia Letizia Gribaudi, Dylan Griswold, Paolo Gritti, Ruan Grobler, Rudy Gunawan, Birhanu Hailemichael, Elmehdi Hakkou, Mark Haley, Alhafidz Hamdan, Ali Hammed, Waeel Hamouda, Nurul Ashikin Hamzah, Nyein Latt Han, Sahin Hanalioglu, Rashan Haniffa, Martin Hanko, John Hanrahan, Timothy Hardcastle, Fahd Derkaoui Hassani, Volkmar Heidecke, Eirik Helseth, Miguel Ángel Hernández-Hernández, Zachary Hickman, Le Minh Chau Hoang, Alexa Hollinger, Lenka Horakova, Kismet Hossain-Ibrahim, Boru Hou, Samer Hoz, Janine Hsu, Martin Hunn, Madiha Hussain, Giorgia Iacopino, Mylena Miki Lopes Ideta, Irene Iglesias, Ali Ilunga, Nafiz Imtiaz, Rafiza Islam, Serge Ivashchenko, Karim Izirouel, Mohamed Sobhi Jabal, Soubhi Jabal, John Nute Jabang, Aimun Jamjoom, Irfan Jan, Landing BM Jarju, Saad Javed, Bojan Jelaca, Sukhdeep Singh Jhawar, Ting Ting Jiang, Fernando Jimenez, Jorge Jiris, Ron Jithoo, Walt Johnson, Mathew Joseph, Rameshman Joshi, Eija Junttila, Mubashir Jusabani, Stephen Akau Kache, Satyavara Prasad Kadali, Gabriela F Kalkmann, Usman Kamboh, Hitham Kandel, Ahmet Kamil Karakus, Mengistu Kassa, Ari Katila, Yoko Kato, Martin Keba, Kristy Kehoe, Huseyin Hayri Kertmen, Soha Khafaji, Monty Khajanchi, Mohammed Khan, Muhammad Mukhtar Khan, Sohail Daud Khan, Ahtesham Khizar, Amir Khriesh, Sara Kierońska, Paul Kisanga, Boniface Kivevele, Kacper Koczyk, Anna-Lucia Koerling, Danielle Koffenberger, Kennet Kõiv, Leho Kõiv, Branislav Kolarovszki, Marton König, Dilek Könü-Leblebicioglu, Santhoshi Devi Koppala, Tommi Korhonen, Boguslaw Kostkiewicz, Kacper Kostyra, Srinivas Kotakadira, Arjun Reddy Kotha, Madhu Narayana Rao Kottakki, Nenad Krajcinovic, Michal Krakowiak, Andreas Kramer, Selvamuthukumaran Krishnamoorthy, Ashok Kumar, Pankaj Kumar, Pradhumna Kumar, Nilaksha Kumarasinghe, Gowtham Kuncha, Raja K. Kutty, Ghazwan Lafta, Simon Lammy, Pierfrancesco Lapolla, Jacopo Lardani, Nebojsa Lasica, Giancarlo Lastrucci, Yoann Launey, Laura Lavalle, Tim Lawrence, Albert Lazaro, Vitalii Lebed, Ville Leinonen, Lawrence Lemeri, Leon Levi, Jia Yi Lim, Xiao Yi Lim, Jorge Linares-Torres, Laura Lippa, Lurdes Lisboa, Jinfang Liu, Ziyuan Liu, William B Lo, Jan Lodin, Federico Loi, Daniella Londono, Pedro Antonio Gomez Lopez, Cristina Barceló López, Madeleine De Lotbiniere-Bassett, Rihards Lulens, Facundo Hector Luna, Teemu Luoto, Vijaya Sekhar M.V., Ndyebo Mabovula, Matthew MacAllister, Alcina Americo Macie, Rodolfo Maduri, Moufid Mahfoud, Ashraf Mahmood, Fathia Mahmoud, Dominic Mahoney, Wissam Makhlouf, George Malcolm, Adefolarin Malomo, Toluyemi Malomo, Manoranjitha Kumari Mani, Tomás Gazzinelli Marçal, Jacopo Marchello, Nicolò Marchesini, Franz Marhold, Niklas Marklund, Rubén Martín-Láez, Vickneswaran Mathaneswaran, David José Mato-Mañas, Helen Maye, Aaron Lawson McLean, Catherine McMahon, Saniya Mediratta, Mehreen Mehboob, Alisson Meneses, Nesrine Mentri, Hagos Mersha, Ana Milena Mesa, Cristy Meyer, Christopher Millward, Salomao Amone Mimbir, Andrea Mingoli, Parashruram Mishra, Tejesh Mishra, Basant Misra, Siddharth Mittal, Imran Mohammed, Ioana Moldovan, Masechaba Molefe, Alexis Moles, Preston Moodley, Mario Augusto Narváez Morales, Lucy Morgan, German Del Castillo Morillo, Wahab Moustafa, Nikolaos Moustakis, Salma Mrichi, Satya Shiva Munjal, Abdul-Jalilu Mohammed Muntaka, Denver Naicker, Paulo E H Nakashima, Pratap Kumar Nandigama, Samantha Nash, Ionut Negoi, Valetina Negoita, Samundra Neupane, Manh Hung Nguyen, Fajar Herbowo Niantiarno, Abbi Noble, Mohd Arman Muhamad Nor, Blazej Nowak, Andrei Oancea, Frazer O'Brien, Oghenekevwe Okere, Sandra Olaya, Leandro Oliveira, Louise Makarem Oliveira, Fatma Omar, Okezi Ononeme, René Opšenák, Simone Orlandini, Alrobah Osama, Dorcas Osei-Poku, Haytham Osman, Alvaro Otero, Malte Ottenhausen, Shuli Otzri, Oumaima Outani, Emmanuel Abem Owusu, Kevin Owusu-Agyemang, Ahmad Ozair, Baris Ozoner, Elli Paal, Mauro Sérgio Paiva, Wellingson Paiva, Sharad Pandey, Gastone Pansini, Luigi Pansini, Tobias Pantel, Nikolaos Pantelas, Konstantinos Papadopoulos, Vladimir Papic, Kee Park, Nick Park, Eric Homero Albuquerque Paschoal, Mylla Christie de Oliveira Paschoalino, Rajesh Pathi, Anilkumar Peethambaran, Thiago Andrade Pereira, Irene Panero Perez, Claudio José Piqueras Pérez, Tamilanandh Periyasamy, Stefano Peron, Michael Phillips, Sofía Sotos Picazo, Ertugrul Pinar, Daniel Pinggera, Rory Piper, Pathmanesan Pirakash, Branko Popadic, Jussi P. Posti, Rajmohan Bhanu Prabhakar, Sivanesalingam Pradeepan, Manjunath Prasad, Paola Calvachi Prieto, Ron Prince, Andrea Prontera, Eva Provaznikova, Danilo Quadros, Nezly Jadid Romero Quintero, Mahmood Qureshi, Happiness Rabiel, Gabriel Rada, Sivagnanam Ragavan, Jueria Rahman, Omar Ramadhan, Padma Ramaswamy, Sakina Rashid, Jagath Rathugamage, Tõnu Rätsep, Minna Rauhala, Asif Raza, Naga Raju Reddycherla, Linus Reen, Mohamed Refaat, Luca Regli, Haijun Ren, Antonio Ria, Thales Francisco Ribeiro, Alessandro Ricci, Romana Richterová, Florian Ringel, Faith Robertson, Catarina Mayrink Siqueira Cabral Rocha, Juvenal de Souza Rogério, Adan Anibal Romano, Sally Rothemeyer, Gail Rousseau Gail Rousseau, Ranette Roza, Kevin David Farelo Rueda, Raiza Ruiz, Malin Rundgren, Radoslaw Rzeplinski, Raj S.Chandran, Ramesh Andi Sadayandi, William Sage, André Norbert Josef Sagerer, Mustafa Sakar, Mohcine Salami, Danjuma Sale, Youssuf Saleh, Cristina Sánchez-Viguera, Saning'o Sandila, Ahmet Metin Sanli, Laura Santi, Antonio Santoro, Aieska Kellen Dantas Dos Santos, Samir Cezimbra dos Santos, Borja Sanz, Shabal Sapkota, Gopalakrishnan Sasidharan, Ibrahim Sasillo, Rajeev Satoskar, Ali Caner Sayar, Vignesh Sayee, Florian Scheichel, Felipe Lourenzon Schiavo, Alexander Schupper, Andreas Schwarz, Teresa Scott, Esther Seeberger, Claudionor Nogueira Costa Segundo, Anwar Sadat Seidu, Antonio Selfa, Nazan Has Selmi, Claudiya Selvarajah, Necmiye Şengel, Martin Seule, Luiz Severo, Purva Shah, Muhammad Shahzad, Thobekile Shangase, Mayur Sharma, Ehab Shiban, Emnet Shimber, Temitayo Shokunbi, Kaynat Siddiqui, Emily Sieg, Martin Siegemund, Shahidur Rahman Sikder, Ana Cristina Veiga Silva, Ana Silva, Pedro Alberto Silva, Deepinder Singh, Carly Skadden, Josef Skola, Eirini Skouteli, Pawel Słoniewski, Brandon Smith, Guirish Solanki, Davi Fontoura Solla, Davi Solla, Ozcan Sonmez, Müge Sönmez, Wai Cheong Soon, Roberto Stefini, Martin Nikolaus Stienen, Bogdan Stoica, Matthew Stovell, Maria Natalia Suarez, Alaa Sulaiman, Mazin Suliman, Adi Sulistyanto, Şeniz Sulubulut, Sandra Sungailaite, Madlen Surbeck, Tomasz Szmuda, Graziano Taddei, Abraham Tadele, Ahmed Saleh Ahmed Taher, Riikka Takala, Krishna Murthy Talari, Bih Huei Tan, Leonardo Tariciotti, Murad Tarmohamed, Oumayma Taroua, Emiliano Tatti, Olli Tenovuo, Sami Tetri, Poojan Thakkar, Nqobile Thango, Satish Kumar Thatikonda, Tuomo Thesleff, Claudius Thomé, Owen Thornton, Shelly Timmons, Eva Ercilio Timoteo, Campbell Tingate, Souhil Tliba, Christos Tolias, Emma Toman, Ivan Torres, Luis Torres, Youness Touissi, Musa Touray, Maria Pia Tropeano, Georgios Tsermoulas, Christos Tsitsipanis, Mehmet Erhan Turkoglu, Özhan Merzuk Uçkun, Jamie Ullman, Gheorghe Ungureanu, Sarah Urasa, Obaid Ur-Rehman, Muhammed Uysal, Antonios Vakis, Egils Valeinis, Vaishali Valluru, Debby Vannoy, Pablo Vargas, Phillipos Varotsis, Rahul Varshney, Atul Vats, Damjan Veljanoski, Sara Venturini, Abhijit Verma, Clara Villa, Genaro Villa, Sofia Villar, Erin Villard, Antonio Viruez, Stefanos Voglis, Petar Vulekovic, Saman Wadanamby, Katherine Wagner, Rebecca Walshe, Jan Walter, Marriam Waseem, Tony Whitworth, Ruwani Wijeyekoon, Adam Williams, Mark Wilson, Sein Win, Achmad Wahib Wahju Winarso, Abraão Wagner Pessoa Ximenes, Anurag Yadav, Dipak Yadav, Kamal Makram Yakoub, Ali Yalcinkaya, Guizhong Yan, Eesha Yaqoob, Carlos Yepes, Ayfer Nazmiye Yılmaz, Betelehem Yishak, Farhat Basheer Yousuf, Muhammad Zamzuri Zahari, Hussein Zakaria, Diego Zambonin, Luca Zavatto, Bassel Zebian, Anna Maria Zeitlberger, Furong Zhang, Fengwei Zheng, and Michal Ziga

Subjects
casemix, management, mortality, emergency neurosurgery, traumatic brain injury, prospective observational cohort study, Neurology (clinical)
Abstract

© 2022 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 licenseBackground: Traumatic brain injury (TBI) is increasingly recognised as being responsible for a substantial proportion of the global burden of disease. Neurosurgical interventions are an important aspect of care for patients with TBI, but there is little epidemiological data available on this patient population. We aimed to characterise differences in casemix, management, and mortality of patients receiving emergency neurosurgery for TBI across different levels of human development. Methods: We did a prospective observational cohort study of consecutive patients with TBI undergoing emergency neurosurgery, in a convenience sample of hospitals identified by open invitation, through international and regional scientific societies and meetings, individual contacts, and social media. Patients receiving emergency neurosurgery for TBI in each hospital's 30-day study period were all eligible for inclusion, with the exception of patients undergoing insertion of an intracranial pressure monitor only, ventriculostomy placement only, or a procedure for drainage of a chronic subdural haematoma. The primary outcome was mortality at 14 days postoperatively (or last point of observation if the patient was discharged before this time point). Countries were stratified according to their Human Development Index (HDI)—a composite of life expectancy, education, and income measures—into very high HDI, high HDI, medium HDI, and low HDI tiers. Mixed effects logistic regression was used to examine the effect of HDI on mortality while accounting for and quantifying between-hospital and between-country variation. Findings: Our study included 1635 records from 159 hospitals in 57 countries, collected between Nov 1, 2018, and Jan 31, 2020. 328 (20%) records were from countries in the very high HDI tier, 539 (33%) from countries in the high HDI tier, 614 (38%) from countries in the medium HDI tier, and 154 (9%) from countries in the low HDI tier. The median age was 35 years (IQR 24–51), with the oldest patients in the very high HDI tier (median 54 years, IQR 34–69) and the youngest in the low HDI tier (median 28 years, IQR 20–38). The most common procedures were elevation of a depressed skull fracture in the low HDI tier (69 [45%]), evacuation of a supratentorial extradural haematoma in the medium HDI tier (189 [31%]) and high HDI tier (173 [32%]), and evacuation of a supratentorial acute subdural haematoma in the very high HDI tier (155 [47%]). Median time from injury to surgery was 13 h (IQR 6–32). Overall mortality was 18% (299 of 1635). After adjustment for casemix, the odds of mortality were greater in the medium HDI tier (odds ratio [OR] 2·84, 95% CI 1·55–5·2) and high HDI tier (2·26, 1·23–4·15), but not the low HDI tier (1·66, 0·61–4·46), relative to the very high HDI tier. There was significant between-hospital variation in mortality (median OR 2·04, 95% CI 1·17–2·49). Interpretation: Patients receiving emergency neurosurgery for TBI differed considerably in their admission characteristics and management across human development settings. Level of human development was associated with mortality. Substantial opportunities to improve care globally were identified, including reducing delays to surgery. Between-hospital variation in mortality suggests changes at an institutional level could influence outcome and comparative effectiveness research could identify best practices. Funding: National Institute for Health Research Global Health Research Group.

Published
2022

14. Anomia is present pre-symptomatically in frontotemporal dementia due to MAPT mutations

Author

Bouzigues, Arabella, Russell, Lucy L, Tiraboschi, Pietro, Lladó, Albert, Antonell, Anna, Olives, Jaume, Balasa, Mircea, Bargalló, Nuria, Borrego-Ecija, Sergi, Verdelho, Ana, Maruta, Carolina, Ferreira, Catarina B, Miltenberger, Gabriel, Masellis, Mario, do Couto, Frederico Simões, Gabilondo, Alazne, Gorostidi, Ana, Villanua, Jorge, Cañada, Marta, Tainta, Mikel, Zulaica, Miren, Barandiaran, Myriam, Alves, Patricia, Bender, Benjamin, Tartaglia, Maria Carmela, Wilke, Carlo, Graf, Lisa, Vogels, Annick, Vandenbulcke, Mathieu, Van Damme, Philip, Bruffaerts, Rose, Poesen, Koen, Rosa-Neto, Pedro, Gauthier, Serge, Camuzat, Agnès, Finger, Elizabeth, Brice, Alexis, Bertrand, Anne, Funkiewiez, Aurélie, Rinaldi, Daisy, Saracino, Dario, Colliot, Olivier, Sayah, Sabrina, Prix, Catharina, Wlasich, Elisabeth, Wagemann, Olivia, van Swieten, John C, Loosli, Sandra, Schönecker, Sonja, Hoegen, Tobias, Lombardi, Jolina, Anderl-Straub, Sarah, Rollin, Adeline, Kuchcinski, Gregory, Bertoux, Maxime, Lebouvier, Thibaud, Deramecourt, Vincent, Seelaar, Harro, Santiago, Beatriz, Duro, Diana, Leitão, Maria João, Almeida, Maria Rosario, Tábuas-Pereira, Miguel, Afonso, Sónia, Engel, Annerose, Polyakova, Maryna, Jiskoot, Lize, Sorbi, Sandro, Butler, Chris R, Graff, Caroline, Peakman, Georgia, Gerhard, Alexander, Langheinrich, Tobias, Laforce, Robert, Sanchez-Valle, Raquel, de Mendonça, Alexandre, Moreno, Fermin, Synofzik, Matthis, Vandenberghe, Rik, Ducharme, Simon, Le Ber, Isabelle, Bocchetta, Martina, Levin, Johannes, Danek, Adrian, Otto, Markus, Pasquier, Florence, Santana, Isabel, Rohrer, Jonathan D, Genetic FTD Initiative, GENFI, Esteve, Aitana Sogorb, Nelson, Annabel, Greaves, Caroline V, Heller, Carolin, Cash, David, Thomas, David L, Todd, Emily, Benotmane, Hanya, Zetterberg, Henrik, Swift, Imogen J, Nicholas, Jennifer, Samra, Kiran, Convery, Rhian S, Shafei, Rachelle, Timberlake, Carolyn, Cope, Thomas, Rittman, Timothy, Benussi, Alberto, Premi, Enrico, Gasparotti, Roberto, Archetti, Silvana, Gazzina, Stefano, Cantoni, Valentina, Arighi, Andrea, Fenoglio, Chiara, Scarpini, Elio, Fumagalli, Giorgio, Borracci, Vittoria, Rossi, Giacomina, Giaccone, Giorgio, Rowe, James B, Caroppo, Paola, Prioni, Sara, Redaelli, Veronica, Tang-Wai, David, Rogaeva, Ekaterina, Castelo-Branco, Miguel, Keren, Ron, Black, Sandra, Mitchell, Sara, Borroni, Barbara, Shoesmith, Christen, Bartha, Robart, Rademakers, Rosa, Poos, Jackie, Papma, Janne M, Giannini, Lucia, Minkelen, Rick, Pijnenburg, Yolande, Nacmias, Benedetta, Ferrari, Camilla, Galimberti, Daniela, Polito, Cristina, Lombardi, Gemma, Bessi, Valentina, Veldsman, Michele, Andersson, Christin, Thonberg, Hakan, Öijerstedt, Linn, Jelic, Vesna, Thompson, Paul, Bouzigues, Arabella [0000-0002-0267-8590], Russell, Lucy L [0000-0001-5023-5893], Peakman, Georgia [0000-0002-3319-138X], Bocchetta, Martina [0000-0003-1814-5024], Greaves, Caroline V [0000-0002-6446-1960], Convery, Rhian S [0000-0002-9477-1812], Rowe, James B [0000-0001-7216-8679], Finger, Elizabeth [0000-0003-4461-7427], van Swieten, John C [0000-0001-6278-6844], Levin, Johannes [0000-0001-5092-4306], Otto, Markus [0000-0002-6647-5944], Apollo - University of Cambridge Repository, Esteve, Aitana Sogorb (Beitragende*r), Nelson, Annabel (Beitragende*r), Heller, Carolin (Beitragende*r), Cash, David (Beitragende*r), Thomas, David L (Beitragende*r), Benotmane, Hanya (Beitragende*r), Zetterberg, Henrik (Beitragende*r), Swift, Imogen J (Beitragende*r), Nicholas, Jennifer (Beitragende*r), Samra, Kiran (Beitragende*r), Shafei, Rachelle (Beitragende*r), Timberlake, Carolyn (Beitragende*r), Cope, Thomas (Beitragende*r), Rittman, Timothy (Beitragende*r), Benussi, Alberto (Beitragende*r), Premi, Enrico (Beitragende*r), Gasparotti, Roberto (Beitragende*r), Archetti, Silvana (Beitragende*r), Gazzina, Stefano (Beitragende*r), Cantoni, Valentina (Beitragende*r), Arighi, Andrea (Beitragende*r), Fenoglio, Chiara (Beitragende*r), Scarpini, Elio (Beitragende*r), Fumagalli, Giorgio (Beitragende*r), Borracci, Vittoria (Beitragende*r), Rossi, Giacomina (Beitragende*r), Giaccone, Giorgio (Beitragende*r), Caroppo, Paola (Beitragende*r), Prioni, Sara (Beitragende*r), Redaelli, Veronica (Beitragende*r), Tang-Wai, David (Beitragende*r), Rogaeva, Ekaterina (Beitragende*r), Castelo-Branco, Miguel (Beitragende*r), Keren, Ron (Beitragende*r), Black, Sandra (Beitragende*r), Mitchell, Sara (Beitragende*r), Shoesmith, Christen (Beitragende*r), Bartha, Robart (Beitragende*r), Rademakers, Rosa (Beitragende*r), Poos, Jackie (Beitragende*r), Papma, Janne M (Beitragende*r), Giannini, Lucia (Beitragende*r), Minkelen, Rick (Beitragende*r), Pijnenburg, Yolande (Beitragende*r), Nacmias, Benedetta (Beitragende*r), Ferrari, Camilla (Beitragende*r), Polito, Cristina (Beitragende*r), Lombardi, Gemma (Beitragende*r), Bessi, Valentina (Beitragende*r), Veldsman, Michele (Beitragende*r), Andersson, Christin (Beitragende*r), Thonberg, Hakan (Beitragende*r), Öijerstedt, Linn (Beitragende*r), Jelic, Vesna (Beitragende*r), Thompson, Paul (Beitragende*r), Lladó, Albert (Beitragende*r), Antonell, Anna (Beitragende*r), Olives, Jaume (Beitragende*r), Balasa, Mircea (Beitragende*r), Bargalló, Nuria (Beitragende*r), Borrego-Ecija, Sergi (Beitragende*r), Verdelho, Ana (Beitragende*r), Maruta, Carolina (Beitragende*r), Ferreira, Catarina B (Beitragende*r), Miltenberger, Gabriel (Beitragende*r), do Couto, Frederico Simões (Beitragende*r), Gabilondo, Alazne (Beitragende*r), Gorostidi, Ana (Beitragende*r), Villanua, Jorge (Beitragende*r), Cañada, Marta (Beitragende*r), Tainta, Mikel (Beitragende*r), Zulaica, Miren (Beitragende*r), Barandiaran, Myriam (Beitragende*r), Alves, Patricia (Beitragende*r), Bender, Benjamin (Beitragende*r), Wilke, Carlo (Beitragende*r), Graf, Lisa (Beitragende*r), Vogels, Annick (Beitragende*r), Vandenbulcke, Mathieu (Beitragende*r), Van Damme, Philip (Beitragende*r), Bruffaerts, Rose (Beitragende*r), Poesen, Koen (Beitragende*r), Rosa-Neto, Pedro (Beitragende*r), Gauthier, Serge (Beitragende*r), Camuzat, Agnès (Beitragende*r), Brice, Alexis (Beitragende*r), Bertrand, Anne (Beitragende*r), Funkiewiez, Aurélie (Beitragende*r), Rinaldi, Daisy (Beitragende*r), Saracino, Dario (Beitragende*r), Colliot, Olivier (Beitragende*r), Sayah, Sabrina (Beitragende*r), Prix, Catharina (Beitragende*r), Wlasich, Elisabeth (Beitragende*r), Wagemann, Olivia (Beitragende*r), Loosli, Sandra (Beitragende*r), Schönecker, Sonja (Beitragende*r), Hoegen, Tobias (Beitragende*r), Lombardi, Jolina (Beitragende*r), Anderl-Straub, Sarah (Beitragende*r), Rollin, Adeline (Beitragende*r), Kuchcinski, Gregory (Beitragende*r), Bertoux, Maxime (Beitragende*r), Lebouvier, Thibaud (Beitragende*r), Deramecourt, Vincent (Beitragende*r), Santiago, Beatriz (Beitragende*r), Duro, Diana (Beitragende*r), Leitão, Maria João (Beitragende*r), Almeida, Maria Rosario (Beitragende*r), Tábuas-Pereira, Miguel (Beitragende*r), Afonso, Sónia (Beitragende*r), Engel, Annerose (Beitragende*r), Polyakova, Maryna (Beitragende*r), Repositório da Universidade de Lisboa, Genetic FTD Initiative, GENFI, and Neurology

Subjects
Progranulin, Clinical Neurology, Medizin, Anomia, tau Proteins, Naming, IMPAIRMENTS, VARIANTS, diagnostic imaging [Frontotemporal Dementia], genetics [Progranulins], Cognition, Progranulins, Settore BIO/13 - Biologia Applicata, complications [Frontotemporal Dementia], mental disorders, C9orf72, Humans, ddc:610, genetics [C9orf72 Protein], genetics [Frontotemporal Dementia], Biology, Science & Technology, C9orf72 Protein, MORPHOMETRIC ANALYSES, ANATOMY, ALZHEIMERS-DISEASE, genetics [tau Proteins], Neurology, Frontotemporal Dementia, Mutation, PATTERNS, Frontotemporal dementia, Tau, Human medicine, Neurosciences & Neurology, Neurology (clinical), complications [Anomia], Life Sciences & Biomedicine, MRI
Abstract

Funder: Alzheimer’s Research UK; doi: http://dx.doi.org/10.13039/501100002283, Funder: UCLH Biomedical Research Centre; doi: http://dx.doi.org/10.13039/501100012317, Funder: Medical Research Council; doi: http://dx.doi.org/10.13039/501100000265, Funder: Leonard Wolfson Experimental Neurology Centre (LWENC) Clinical Research Facility, Funder: Bluefield Project, INTRODUCTION: A third of frontotemporal dementia (FTD) is caused by an autosomal-dominant genetic mutation in one of three genes: microtubule-associated protein tau (MAPT), chromosome 9 open reading frame 72 (C9orf72) and progranulin (GRN). Prior studies of prodromal FTD have identified impaired executive function and social cognition early in the disease but few have studied naming in detail. METHODS: We investigated performance on the Boston Naming Test (BNT) in the GENetic Frontotemporal dementia Initiative cohort of 499 mutation carriers and 248 mutation-negative controls divided across three genetic groups: C9orf72, MAPT and GRN. Mutation carriers were further divided into 3 groups according to their global CDR plus NACC FTLD score: 0 (asymptomatic), 0.5 (prodromal) and 1 + (fully symptomatic). Groups were compared using a bootstrapped linear regression model, adjusting for age, sex, language and education. Finally, we identified neural correlates of anomia within carriers of each genetic group using a voxel-based morphometry analysis. RESULTS: All symptomatic groups performed worse on the BNT than controls with the MAPT symptomatic group scoring the worst. Furthermore, MAPT asymptomatic and prodromal groups performed significantly worse than controls. Correlates of anomia in MAPT mutation carriers included bilateral anterior temporal lobe regions and the anterior insula. Similar bilateral anterior temporal lobe involvement was seen in C9orf72 mutation carriers as well as more widespread left frontal atrophy. In GRN mutation carriers, neural correlates were limited to the left hemisphere, and involved frontal, temporal, insula and striatal regions. CONCLUSION: This study suggests the development of early anomia in MAPT mutation carriers, likely to be associated with impaired semantic knowledge. Clinical trials focused on the prodromal period within individuals with MAPT mutations should use language tasks, such as the BNT for patient stratification and as outcome measures.

Published
2022

15. Data‐driven staging of genetic frontotemporal dementia using multi‐modal <scp>MRI</scp>

Author

McCarthy, Jillian, Borroni, Barbara, Tartaglia, Maria Carmela, Neason, Mollie, Nicholas, Jennifer, Öijerstedt, Linn, Olives, Jaume, Ourselin, Sebastien, Padovani, Alessandro, Panman, Jessica, Papma, Janne, Peakman, Georgia, Piaceri, Irene, Finger, Elizabeth, Pievani, Michela, Pijnenburg, Yolande, Polito, Cristina, Premi, Enrico, Prioni, Sara, Prix, Catharina, Rademakers, Rosa, Redaelli, Veronica, Rittman, Tim, Rogaeva, Ekaterina, Vandenberghe, Rik, Rosa-Neto, Pedro, Rossi, Giacomina, Rossor, Martin, Santiago, Beatriz, Scarpini, Elio, Schönecker, Sonja, Semler, Elisa, Shafei, Rachelle, Shoesmith, Christen, Tábuas-Pereira, Miguel, de Mendonça, Alexandre, Tainta, Mikel, Taipa, Ricardo, Tang-Wai, David, Thomas, David L, Thompson, Paul, Thonberg, Hakan, Timberlake, Carolyn, Tiraboschi, Pietro, Todd, Emily, Vandamme, Philip, Tagliavini, Fabrizio, Vandenbulcke, Mathieu, Veldsman, Michele, Verdelho, Ana, Villanua, Jorge, Warren, Jason, Wilke, Carlo, Woollacott, Ione, Wlasich, Elisabeth, Zetterberg, Henrik, Zulaica, Miren, Santana, Isabel, Butler, Chris, Gerhard, Alex, Danek, Adrian, Levin, Johannes, Sanchez-Valle, Raquel, Otto, Markus, Frisoni, Giovanni B, Ghidoni, Roberta, Sorbi, Sandro, Jiskoot, Lize C, Seelaar, Harro, van Swieten, John C, Rohrer, Jonathan D, Iturria-Medina, Yasser, Ducharme, Simon, Moreno, Fermin, Initiative, GENetic Frontotemporal Dementia, Afonso, Sónia, Almeida, Maria Rosario, Anderl-Straub, Sarah, Andersson, Christin, Antonell, Anna, Archetti, Silvana, Arighi, Andrea, Balasa, Mircea, Barandiaran, Myriam, Laforce, Robert, Bargalló, Nuria, Bartha, Robart, Bender, Benjamin, Benussi, Alberto, Benussi, Luisa, Bessi, Valentina, Binetti, Giuliano, Black, Sandra, Bocchetta, Martina, Borrego-Ecija, Sergi, Graff, Caroline, Bras, Jose, Bruffaerts, Rose, Cañada, Marta, Cantoni, Valentina, Caroppo, Paola, Cash, David, Castelo-Branco, Miguel, Convery, Rhian, Cope, Thomas, Cosseddu, Maura, Synofzik, Matthis, de Arriba, María, Di Fede, Giuseppe, Díaz, Zigor, Díez, Alina, Duro, Diana, Fenoglio, Chiara, Ferrari, Camilla, Ferreira, Carlos, Ferreira, Catarina B, Flanagan, Toby, Galimberti, Daniela, Fox, Nick, Freedman, Morris, Fumagalli, Giorgio, Gabilondo, Alazne, Gasparotti, Roberto, Gauthier, Serge, Gazzina, Stefano, Giaccone, Giorgio, Gorostidi, Ana, Greaves, Caroline, Rowe, James B, Guerreiro, Rita, Heller, Carolin, Hoegen, Tobias, Indakoetxea, Begoña, Jelic, Vesna, Karnath, Hans Otto, Keren, Ron, Langheinrich, Tobias, Leitão, Maria João, Lladó, Albert, Masellis, Mario, Lombardi, Gemma, Loosli, Sandra, Maruta, Carolina, Mead, Simon, Meeter, Lieke, Miltenberger, Gabriel, van Minkelen, Rick, Mitchell, Sara, Moore, Katrina M, Nacmias, Benedetta, Repositório da Universidade de Lisboa, Neurology, Amsterdam Neuroscience - Neurodegeneration, McCarthy, Jillian [0000-0002-9285-0023], Borroni, Barbara [0000-0001-9340-9814], Apollo - University of Cambridge Repository, GENetic Frontotemporal Dementia Initiative (GENFI), Clinical Genetics, and Clinical Psychology

Subjects
disease progression, frontotemporal dementia, magnetic resonance imaging, unsupervised machine learning, BIOMARKER, Heterozygote, Medizin, Neuroimaging, diagnostic imaging [Frontotemporal Dementia], Magnetic resonance imaging, SDG 3 - Good Health and Well-being, HARMONIZATION, Settore BIO/13 - Biologia Applicata, NEUROFILAMENT LIGHT-CHAIN, BEHAVIORAL VARIANT, CRITERIA, Humans, Radiology, Nuclear Medicine and imaging, ddc:610, Cross-Sectional Studies, Language, Magnetic Resonance Imaging, Frontotemporal Dementia, genetics [Frontotemporal Dementia], Unsupervised machine learning, Disease progression, Science & Technology, Radiological and Ultrasound Technology, Radiology, Nuclear Medicine & Medical Imaging, Neurosciences, DEGENERATION, DIFFUSION, psychology [Frontotemporal Dementia], Neurology, GRAY-MATTER ATROPHY, Neurosciences & Neurology, Neurology (clinical), Anatomy, Life Sciences & Biomedicine, GENFI, CLINICAL-TRIALS, Frontotemporal dementia
Abstract

Funder: Fondation Brain Canada; Id: http://dx.doi.org/10.13039/100009408, Funder: Fonds de Recherche du Québec ‐ Santé; Id: http://dx.doi.org/10.13039/501100000156, Funder: Health Canada; Id: http://dx.doi.org/10.13039/501100000008, Funder: Brain Canada Foundation; Id: http://dx.doi.org/10.13039/100009408, Frontotemporal dementia in genetic forms is highly heterogeneous and begins many years to prior symptom onset, complicating disease understanding and treatment development. Unifying methods to stage the disease during both the presymptomatic and symptomatic phases are needed for the development of clinical trials outcomes. Here we used the contrastive trajectory inference (cTI), an unsupervised machine learning algorithm that analyzes temporal patterns in high-dimensional large-scale population datasets to obtain individual scores of disease stage. We used cross-sectional MRI data (gray matter density, T1/T2 ratio as a proxy for myelin content, resting-state functional amplitude, gray matter fractional anisotropy, and mean diffusivity) from 383 gene carriers (269 presymptomatic and 115 symptomatic) and a control group of 253 noncarriers in the Genetic Frontotemporal Dementia Initiative. We compared the cTI-obtained disease scores to the estimated years to onset (age-mean age of onset in relatives), clinical, and neuropsychological test scores. The cTI based disease scores were correlated with all clinical and neuropsychological tests (measuring behavioral symptoms, attention, memory, language, and executive functions), with the highest contribution coming from mean diffusivity. Mean cTI scores were higher in the presymptomatic carriers than controls, indicating that the method may capture subtle pre-dementia cerebral changes, although this change was not replicated in a subset of subjects with complete data. This study provides a proof of concept that cTI can identify data-driven disease stages in a heterogeneous sample combining different mutations and disease stages of genetic FTD using only MRI metrics.

Published
2022

16. Long-Term Clinical Results with Radiological Correlations After Posterior Foraminotomy for Unilateral Cervical Discopathy

Author

Andrzej Marchel, Mateusz Bielecki, Sławomir Kujawski, Artur Balasa, and Przemysław Kunert

Subjects
medicine.medical_specialty, Lordosis, Nerve root, Decompression, medicine.medical_treatment, Kyphosis, Degenerative disc disease, Foraminotomy, medicine, Humans, Risk factor, Retrospective Studies, business.industry, medicine.disease, Surgery, Radiography, Treatment Outcome, Facetectomy, Cervical Vertebrae, Neurology (clinical), business, Intervertebral Disc Displacement
Abstract

BACKGROUND In lateral cervical disc herniations, a posterior foraminotomy (PF) provides direct nerve root decompression and maintains segmental mobility. However, a partial facetectomy can cause instability. This study evaluated long-term clinical outcomes related to cervical sagittal alignment after PF. MATERIALS: We included 48 consecutive patients with lateral cervical disc herniations that underwent PF. Pain and mobility were evaluated using the numerical rating scale (NRS) and the Neck Disability Index (NDI), respectively. Sagittal alignment was evaluated using the modified Toyama method. RESULTS The median arm NRS, neck NRS, and NDI scores improved by 7, 4.5, and 24 points, respectively. Corresponding mean minimal clinically important differences (MCIDs) were achieved in 94%, 77%, and 98% of patients, respectively, at a mean follow-up of 8.4 years, and 82% of patients showed favorable radiological results (i.e., retained or developed lordosis or had straight spine), while 18% of patients showed unfavorable radiological results (i.e., retained or changed toward kyphosis). The latter group had multilevel cervical degenerative disc disease (mcDDD) before the PF. Nevertheless, the risk of developing kyphosis was only 2.6% and the potential for improving sagittal balance was 43%. Follow-up median NDI scores, but not MCIDs, were significantly worse in patients with preoperative kyphosis (21 vs. 8; P= 0.03) or mcDDD (20 vs. 8; P= 0.024) compared with other patients. CONCLUSIONS Patients with preoperative kyphosis or mcDDD had worse NDI outcomes but also benefitted from PF. Sagittal alignment improved in over 40% of patients, but coexisting mcDDD was a main risk factor for kyphosis persistence.

Published
2022

17. Cognitive composites for genetic frontotemporal dementia: GENFI-Cog

Author

Poos, Jackie M, Moore, Katrina M, Seelaar, Harro, Vandamme, Philip, Vandenbulcke, Mathieu, Ferreira, Catarina B, Miltenberger, Gabriel, Maruta, Carolina, Verdelho, Ana, Afonso, Sónia, Taipa, Ricardo, Caroppo, Paola, Di Fede, Giuseppe, Pijnenburg, Yolande A L, Giaccone, Giorgio, Prioni, Sara, Redaelli, Veronica, Rossi, Giacomina, Duro, Diana, Almeida, Maria Rosario, Castelo-Branco, Miguel, Leitão, Maria João, Tabuas-Pereira, Miguel, Santiago, Beatriz, Moreno, Fermin, Gauthier, Serge, Rosa-Neto, Pedro, Veldsman, Michele, Thompson, Paul, Langheinrich, Tobias, Prix, Catharina, Hoegen, Tobias, Wlasich, Elisabeth, Loosli, Sandra, Schonecker, Sonja, Sanchez-Valle, Raquel, Anderl-Straub, Sarah, Lombardi, Jolina, Bargalló, Nuria, Benussi, Alberto, Cantoni, Valentina, Bertoux, Maxime, Bertrand, Anne, Brice, Alexis, Camuzat, Agnès, Colliot, Olivier, Borroni, Barbara, Sayah, Sabrina, Funkiewiez, Aurélie, Rinaldi, Daisy, Lombardi, Gemma, Nacmias, Benedetta, Saracino, Dario, Bessi, Valentina, Ferrari, Camilla, Cañada, Marta, Deramecourt, Vincent, Laforce, Robert, Kuchcinski, Gregory, Lebouvier, Thibaud, Ourselin, Sebastien, Polito, Cristina, Rollin, Adeline, Masellis, Mario, Tartaglia, Carmela, Graff, Caroline, Galimberti, Daniela, Nicholas, Jennifer, Rowe, James B, Finger, Elizabeth, Synofzik, Matthis, Vandenberghe, Rik, de Mendonça, Alexandre, Tiraboschi, Pietro, Santana, Isabel, Ducharme, Simon, Butler, Chris, Gerhard, Alexander, Russell, Lucy L, Levin, Johannes, Danek, Adrian, Otto, Markus, Le Ber, Isabel, Pasquier, Florence, van Swieten, John C, Rohrer, Jonathan D, Initiative, Genetic FTD, Bouzigues, Arabella, Rossor, Martin N, Peakman, Georgia, Fox, Nick C, Warren, Jason D, Bocchetta, Martina, Swift, Imogen J, Shafei, Rachelle, Heller, Carolin, Todd, Emily, Cash, David, Woollacott, Ione, Zetterberg, Henrik, Convery, Rhian S, Nelson, Annabel, Guerreiro, Rita, Bras, Jose, Thomas, David L, Mead, Simon, Meeter, Lieke, Panman, Jessica, van Minkelen, Rick, Barandiaran, Myriam, Indakoetxea, Begoña, Jiskoot, Lize C, Gabilondo, Alazne, Tainta, Mikel, Gorostidi, Ana, Zulaica, Miren, Díez, Alina, Villanua, Jorge, Borrego-Ecija, Sergi, Olives, Jaume, Lladó, Albert, Balasa, Mircea, van der Ende, Emma, Antonell, Anna, Bargallo, Nuria, Premi, Enrico, Gazzina, Stefano, Gasparotti, Roberto, Archetti, Silvana, Black, Sandra, Mitchell, Sara, Rogaeva, Ekaterina, Freedman, Morris, van den Berg, Esther, Keren, Ron, Tang-Wai, David, Thonberg, Hakan, Öijerstedt, Linn, Andersson, Christin, Jelic, Vesna, Arighi, Andrea, Fenoglio, Chiara, Scarpini, Elio, Fumagalli, Giorgio, Papma, Janne M, Cope, Thomas, Timberlake, Carolyn, Rittman, Timothy, Shoesmith, Christen, Bartha, Robart, Rademakers, Rosa, Wilke, Carlo, Karnarth, Hans-Otto, Bender, Benjamin, Bruffaerts, Rose, Neurology, Amsterdam Neuroscience - Neurodegeneration, Medical Research Council, Clinical Genetics, Rowe, James [0000-0001-7216-8679], Rohrer, Jonathan D [0000-0002-6155-8417], and Apollo - University of Cambridge Repository

Subjects
PROGRESSION, Neuropsychological Tests, Composite score, Genetic FTD Initiative (GENFI), diagnosis [Frontotemporal Dementia], Cognition, CRITERIA, Attention, genetics [Frontotemporal Dementia], 11 Medical and Health Sciences, Language, Executive function, Frontotemporal dementia, Memory, Neuropsychology, Social cognition, Humans, Mutation, Prodromal Symptoms, Sample Size, tau Proteins, Frontotemporal Dementia, CARRIERS, Neurology, Psychology, Life Sciences & Biomedicine, CLINICAL-TRIALS, RC321-571, medicine.medical_specialty, Cognitive Neuroscience, Clinical Neurology, genetics [Mutation], Neurosciences. Biological psychiatry. Neuropsychiatry, Physical medicine and rehabilitation, Cog, mental disorders, medicine, ddc:610, RC346-429, Science & Technology, Research, Neurosciences, medicine.disease, genetics [tau Proteins], Neurosciences & Neurology, Neurology (clinical), Neurology. Diseases of the nervous system
Abstract

Funder: Alzheimer's Research UK, Funder: Alzheimer's Society, Funder: Brain Research UK, Funder: the Wolfson Foundation, Funder: NIHR UCL/H Biomedical Research Centre, Funder: Leonard Wolfson Experimental Neurology Centre Clinical Research Facility, Funder: UK Dementia Research Institute, Funder: UK Medical Research Council, Funder: Bluefield project, Funder: the Association for Frontotemporal Dementias Research Grant 2009, BACKGROUND: Clinical endpoints for upcoming therapeutic trials in frontotemporal dementia (FTD) are increasingly urgent. Cognitive composite scores are often used as endpoints but are lacking in genetic FTD. We aimed to create cognitive composite scores for genetic frontotemporal dementia (FTD) as well as recommendations for recruitment and duration in clinical trial design. METHODS: A standardized neuropsychological test battery covering six cognitive domains was completed by 69 C9orf72, 41 GRN, and 28 MAPT mutation carriers with CDR�� plus NACC-FTLD ��� 0.5 and 275 controls. Logistic regression was used to identify the combination of tests that distinguished best between each mutation carrier group and controls. The composite scores were calculated from the weighted averages of test scores in the models based on the regression coefficients. Sample size estimates were calculated for individual cognitive tests and composites in a theoretical trial aimed at preventing progression from a prodromal stage (CDR�� plus NACC-FTLD 0.5) to a fully symptomatic stage (CDR�� plus NACC-FTLD ��� 1). Time-to-event analysis was performed to determine how quickly mutation carriers progressed from CDR�� plus NACC-FTLD = 0.5 to ��� 1 (and therefore how long a trial would need to be). RESULTS: The results from the logistic regression analyses resulted in different composite scores for each mutation carrier group (i.e. C9orf72, GRN, and MAPT). The estimated sample size to detect a treatment effect was lower for composite scores than for most individual tests. A Kaplan-Meier curve showed that after 3 years, ~ 50% of individuals had converted from CDR�� plus NACC-FTLD 0.5 to ��� 1, which means that the estimated effect size needs to be halved in sample size calculations as only half of the mutation carriers would be expected to progress from CDR�� plus NACC FTLD 0.5 to ��� 1 without treatment over that time period. DISCUSSION: We created gene-specific cognitive composite scores for C9orf72, GRN, and MAPT mutation carriers, which resulted in substantially lower estimated sample sizes to detect a treatment effect than the individual cognitive tests. The GENFI-Cog composites have potential as cognitive endpoints for upcoming clinical trials. The results from this study provide recommendations for estimating sample size and trial duration.

Published
2022

18. Differential impairment of cerebrospinal fluid synaptic biomarkers in the genetic forms of frontotemporal dementia

Author

Sogorb-Esteve, Aitana, Nilsson, Johanna, Borroni, Barbara, Balasa, Mircea, Bargalló, Nuria, Borrego-Ecija, Sergi, de Mendonça, Alexandre, Verdelho, Ana, Maruta, Carolina, Ferreira, Catarina B, Miltenberger, Gabriel, do Couto, Frederico Simões, Gabilondo, Alazne, Galimberti, Daniela, Gorostidi, Ana, Villanua, Jorge, Cañada, Marta, Tainta, Mikel, Zulaica, Miren, Barandiaran, Myriam, Alves, Patricia, Bender, Benjamin, Wilke, Carlo, Graf, Lisa, Sanchez-Valle, Raquel, Vogels, Annick, Vandenbulcke, Mathieu, Van Damme, Philip, Bruffaerts, Rose, Poesen, Koen, Rosa-Neto, Pedro, Gauthier, Serge, Camuzat, Agnès, Brice, Alexis, Bertrand, Anne, Laforce, Robert, Funkiewiez, Aurélie, Rinaldi, Daisy, Saracino, Dario, Colliot, Olivier, Sayah, Sabrina, Prix, Catharina, Wlasich, Elisabeth, Wagemann, Olivia, Loosli, Sandra, Schönecker, Sonja, Moreno, Fermin, Hoegen, Tobias, Lombardi, Jolina, Anderl-Straub, Sarah, Rollin, Adeline, Kuchcinski, Gregory, Bertoux, Maxime, Lebouvier, Thibaud, Deramecourt, Vincent, Santiago, Beatriz, Duro, Diana, Synofzik, Matthis, Leitão, Maria João, Almeida, Maria Rosario, Tábuas-Pereira, Miguel, Afonso, Sónia, Graff, Caroline, Masellis, Mario, Tartaglia, Maria Carmela, Rowe, James B, Swift, Imogen J, Vandenberghe, Rik, Finger, Elizabeth, Tagliavini, Fabrizio, Santana, Isabel, Butler, Chris R, Ducharme, Simon, Gerhard, Alexander, Danek, Adrian, Levin, Johannes, Otto, Markus, Heller, Carolin, Sorbi, Sandro, Le Ber, Isabelle, Pasquier, Florence, Gobom, Johan, Brinkmalm, Ann, Blennow, Kaj, Zetterberg, Henrik, Rohrer, Jonathan D, Initiative, GENetic FTD, Nelson, Annabel, Bocchetta, Martina, Bouzigues, Arabella, Greaves, Caroline V, Cash, David, Thomas, David L, Todd, Emily, Benotmane, Hanya, Nicholas, Jennifer, Samra, Kiran, Shafei, Rachelle, Timberlake, Carolyn, Russell, Lucy L, Cope, Thomas, Rittman, Timothy, Benussi, Alberto, Premi, Enrico, Gasparotti, Roberto, Archetti, Silvana, Gazzina, Stefano, Cantoni, Valentina, Arighi, Andrea, Fenoglio, Chiara, Peakman, Georgia, Scarpini, Elio, Fumagalli, Giorgio, Borracci, Vittoria, Rossi, Giacomina, Giaccone, Giorgio, Di Fede, Giuseppe, Caroppo, Paola, Tiraboschi, Pietro, Prioni, Sara, Redaelli, Veronica, Convery, Rhian S, Tang-Wai, David, Rogaeva, Ekaterina, Castelo-Branco, Miguel, Freedman, Morris, Keren, Ron, Black, Sandra, Mitchell, Sara, Shoesmith, Christen, Bartha, Robart, Rademakers, Rosa, van Swieten, John C, Poos, Jackie, Papma, Janne M, Giannini, Lucia, van Minkelen, Rick, Pijnenburg, Yolande, Nacmias, Benedetta, Ferrari, Camilla, Polito, Cristina, Lombardi, Gemma, Bessi, Valentina, Seelaar, Harro, Veldsman, Michele, Andersson, Christin, Thonberg, Hakan, Öijerstedt, Linn, Jelic, Vesna, Thompson, Paul, Langheinrich, Tobias, Lladó, Albert, Antonell, Anna, Olives, Jaume, Neurology, Amsterdam Neuroscience - Neurodegeneration, Clinical Genetics, GENetic FTD Initiative, Poesen, Koen, Van Damme, Philip, Bruffaerts, rose, Vandenbulcke, Mathieu, Vogels, ann, Bocchetta, Martina [0000-0003-1814-5024], and Apollo - University of Cambridge Repository

Subjects
Synaptic dysfunction, Cognitive Neuroscience, cerebrospinal fluid [gamma-Synuclein], Medizin, cerebrospinal fluid [Syntaxin 1], Syntaxin 1, genetics [Mutation], tau Proteins, cerebrospinal fluid [Frontotemporal Dementia], frontotemporal dementia, beta-Synuclein, gamma-Synuclein, Settore BIO/13 - Biologia Applicata, Humans, ddc:610, genetics [C9orf72 Protein], genetics [Frontotemporal Dementia], Biology, genetics [beta-Synuclein], genetics [Syntaxin 1], C9orf72 Protein, synaptic dysfunction, cerebrospinal fluid [C9orf72 Protein], Research, Biomarkers, Frontotemporal dementia, Mutation, Neurogranin, Frontotemporal Dementia, biomarkers, genetics [Neurogranin], genetics [tau Proteins], Neurology, cerebrospinal fluid [Biomarkers], genetics [gamma-Synuclein], Neurology (clinical), Human medicine, cerebrospinal fluid [Neurogranin]
Abstract

Background Approximately a third of frontotemporal dementia (FTD) is genetic with mutations in three genes accounting for most of the inheritance: C9orf72, GRN, and MAPT. Impaired synaptic health is a common mechanism in all three genetic variants, so developing fluid biomarkers of this process could be useful as a readout of cellular dysfunction within therapeutic trials. Methods A total of 193 cerebrospinal fluid (CSF) samples from the GENetic FTD Initiative including 77 presymptomatic (31 C9orf72, 23 GRN, 23 MAPT) and 55 symptomatic (26 C9orf72, 17 GRN, 12 MAPT) mutation carriers as well as 61 mutation-negative controls were measured using a microflow LC PRM-MS set-up targeting 15 synaptic proteins: AP-2 complex subunit beta, complexin-2, beta-synuclein, gamma-synuclein, 14–3-3 proteins (eta, epsilon, zeta/delta), neurogranin, Rab GDP dissociation inhibitor alpha (Rab GDI alpha), syntaxin-1B, syntaxin-7, phosphatidylethanolamine-binding protein 1 (PEBP-1), neuronal pentraxin receptor (NPTXR), neuronal pentraxin 1 (NPTX1), and neuronal pentraxin 2 (NPTX2). Mutation carrier groups were compared to each other and to controls using a bootstrapped linear regression model, adjusting for age and sex. Results CSF levels of eight proteins were increased only in symptomatic MAPT mutation carriers (compared with controls) and not in symptomatic C9orf72 or GRN mutation carriers: beta-synuclein, gamma-synuclein, 14–3-3-eta, neurogranin, Rab GDI alpha, syntaxin-1B, syntaxin-7, and PEBP-1, with three other proteins increased in MAPT mutation carriers compared with the other genetic groups (AP-2 complex subunit beta, complexin-2, and 14–3-3 zeta/delta). In contrast, CSF NPTX1 and NPTX2 levels were affected in all three genetic groups (decreased compared with controls), with NPTXR concentrations being affected in C9orf72 and GRN mutation carriers only (decreased compared with controls). No changes were seen in the CSF levels of these proteins in presymptomatic mutation carriers. Concentrations of the neuronal pentraxins were correlated with brain volumes in the presymptomatic period for the C9orf72 and GRN groups, suggesting that they become abnormal in proximity to symptom onset. Conclusions Differential synaptic impairment is seen in the genetic forms of FTD, with abnormalities in multiple measures in those with MAPT mutations, but only changes in neuronal pentraxins within the GRN and C9orf72 mutation groups. Such markers may be useful in future trials as measures of synaptic dysfunction, but further work is needed to understand how these markers change throughout the course of the disease.

Published
2022

19. Tau‐derived Locus coeruleus degeneration as a driver for sleep‐wake alterations and neuropsychiatric symptoms in early and late‐onset Alzheimer’s Disease

Author

Neus Falgàs Martínez, Emma Muñoz‐Moreno, Núria Guillén, Jordi Sarto, Oscar Ramos‐Campoy, Beatriz Bosch‐Capdevila, Paula Marrero‐González, Núria Bargalló, Mircea Balasa, Guadalupe Fernandez‐Villullas, Christine M Walsh, Thomas C. Neylan, Álex Iranzo, Albert Lladó, Lea Tenenholz Grinberg, and Raquel Sanchez‐Valle

Subjects
Psychiatry and Mental health, Cellular and Molecular Neuroscience, Developmental Neuroscience, Epidemiology, Health Policy, Neurology (clinical), Geriatrics and Gerontology
Published
2022

20. Baseline MRI atrophy predicts 2-year cognitive outcomes in early-onset Alzheimer’s disease

Author

Núria Bargalló, Albert Lladó, Mircea Balasa, Roser Sala-Llonch, Adrià Tort-Merino, Guadalupe Fernández-Villullas, Sergi Borrego-Écija, Raquel Sánchez-Valle, José Contador, Anna Antonell, Nuria Guillen, Agnés Pérez‐Millan, Magdalena Castellví, Beatriz Bosch, Neus Falgàs, Oscar Ramos-Campoy, and Jaume Olives

Subjects
medicine.medical_specialty, Neurology, medicine.diagnostic_test, business.industry, Cognition, medicine.disease, Atrophy, Visual memory, Internal medicine, medicine, Cardiology, Early-onset Alzheimer's disease, Neurology (clinical), Neuropsychological assessment, Prospective cohort study, business, Neuroradiology
Abstract

MRI atrophy predicts cognitive status in AD. However, this relationship has not been investigated in early-onset AD (EOAD

Published
2021

22. Galectin-3 is elevated in CSF and is associated with Aβ deposits and tau aggregates in brain tissue in Alzheimer's disease

Author

Antonio Boza-Serrano, Agathe Vrillon, Karolina Minta, Agnes Paulus, Lluís Camprubí-Ferrer, Megg Garcia, Ulf Andreasson, Anna Antonell, Malin Wennström, Gunnar Gouras, Julien Dumurgier, Emmanuel Cognat, Laura Molina-Porcel, Mircea Balasa, Javier Vitorica, Raquel Sánchez-Valle, Claire Paquet, Jose Luis Venero, Kaj Blennow, Tomas Deierborg, Lund University, Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Ministerio de Ciencia e Innovación (España), Instituto de Salud Carlos III, Junta de Andalucía, and Boza-Serrano, Antonio

Subjects
Amyloid beta-Peptides, Galectin 3, Brain, Plaque, Amyloid, tau Proteins, beta-Galactosidase, Pathology and Forensic Medicine, Cellular and Molecular Neuroscience, Mice, GAP-43 Protein, Alzheimer Disease, Animals, Humans, Neurogranin, Neurology (clinical), Chitinase-3-Like Protein 1, Biomarkers
Abstract

Galectin-3 (Gal-3) is a beta-galactosidase binding protein involved in microglial activation in the central nervous system (CNS). We previously demonstrated the crucial deleterious role of Gal-3 in microglial activation in Alzheimer's disease (AD). Under AD conditions, Gal-3 is primarily expressed by microglial cells clustered around Aβ plaques in both human and mouse brain, and knocking out Gal-3 reduces AD pathology in AD-model mice. To further unravel the importance of Gal-3-associated inflammation in AD, we aimed to investigate the Gal-3 inflammatory response in the AD continuum. First, we measured Gal-3 levels in neocortical and hippocampal tissue from early-onset AD patients, including genetic and sporadic cases. We found that Gal-3 levels were significantly higher in both cortex and hippocampus in AD subjects. Immunohistochemistry revealed that Gal-3+ microglial cells were associated with amyloid plaques of a larger size and more irregular shape and with neurons containing tau-inclusions. We then analyzed the levels of Gal-3 in cerebrospinal fluid (CSF) from AD patients (n = 119) compared to control individuals (n = 36). CSF Gal-3 levels were elevated in AD patients compared to controls and more strongly correlated with tau (p-Tau181 and t-tau) and synaptic markers (GAP-43 and neurogranin) than with amyloid-β. Lastly, principal component analysis (PCA) of AD biomarkers revealed that CSF Gal-3 clustered and associated with other CSF neuroinflammatory markers, including sTREM-2, GFAP, and YKL-40. This neuroinflammatory component was more highly expressed in the CSF from amyloid-β positive (A+), CSF p-Tau181 positive (T+), and biomarker neurodegeneration positive/negative (N+/-) (A + T + N+/-) groups compared to the A + T-N- group. Overall, Gal-3 stands out as a key pathological biomarker of AD pathology that is measurable in CSF and, therefore, a potential target for disease-modifying therapies involving the neuroinflammatory response., Open access funding provided by Lund University. Vetenskapsrådet, 2019-0633, Antonio Boza Serrano, Ministerio de Ciencia, Innovación y Universidades, RTI2018-098645-B-100, Jose Luis Venero, PID2021-124096OB-100, Jose Luis Venero, Instituto de Salud Carlos III, 20/00448, Raquel Sanchez-Valle, Union PI18/01556, Javier Vitorica, PI21/00914, Javier Vitorica, Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía, P18-RT-1372, Jose Luis Venero, US-1262734, Javier Vitorica, Kungliga Fysiografiska Sällskapet i Lund, 20191114ABS, Antonio Boza Serrano, 20211129ABS, Antonio Boza Serrano, Greta och Johan Kocks stiftelser, 20201201ABS, Antonio Boza Serrano, Consejería de Economía, Conocimiento, E mpresas y Universidad, Junta de Andalucía, US-1264806, Jose Luis Venero

Published
2022

23. A panel of CSF proteins separates genetic frontotemporal dementia from presymptomatic mutation carriers

Author

Yolande A.L. Pijnenburg, Alessandro Padovani, Lieke H.H. Meeter, Rita Guerreiro, Mathieu Vandenbulcke, Rose Bruffaerts, Sonja Schönecker, Sofia Bergström, Florence Pasquier, Mikel Tainta, Beatriz Santiago, Roberto Gasparotti, Maria Rosário Almeida, Núria Bargalló, Abbe Ullgren, Martina Bocchetta, James B. Rowe, Pietro Tiraboschi, Robart Bartha, Rachelle Shafei, Benjamin Bender, Anna Månberg, Enrico Premi, Sergi Borrego-Écija, Sandro Sorbi, Christopher C Butler, Rick van Minkelen, Alberto Benussi, Marta Cañada, Carlo Wilke, Christin Andersson, Caroline Graff, Isabel Santana, Elisa Semler, Valentina Bessi, Miren Zulaica, Benedetta Nacmias, Tobias Langheinrich, Christen Shoesmith, Philip Van Damme, Camilla Ferrari, Martin Rosser, Pedro Rosa-Neto, Alexandre de Mendonça, Jennifer M. Nicholas, Catharina Prix, Sebastien Ourselin, Michele Veldsman, Jessica L. Panman, Håkan Thonberg, Jennie Olofsson, Paul M. Thompson, Ana Gorostidi, Andrea Arighi, Raquel Sánchez-Valle, Anna Antonell, Vesna Jelic, Ana Verdelho, Sara Mitchell, Janne M. Papma, Alina Díez, Giuliano Binetti, Rhian S Convery, Silvana Archetti, Ekaterina Rogaeva, Michela Pievani, C. Ferreira, Hans-Otto Karnath, Veronica Redaelli, Giuseppe Di Fede, Giovanni B. Frisoni, Carolina Maruta, Giacomina Rossi, Jaume Olives, Simon Ducharme, Roberta Ghidoni, Alexander Gerhard, Ron Keren, Johannes Levin, Sandra V. Loosli, Jose Bras, Isabelle Le Ber, Emily Todd, Robert Laforce, Sónia Afonso, Matthis Synofzik, Alazne Gabilondo, Elizabeth Finger, Thomas E. Cope, Paola Caroppo, Jorge Villanua, Diana Duro, Georgia Peakman, Giorgio G. Fumagalli, Serge Gauthier, Mario Masellis, Markus Otto, Caroline V. Greaves, Carolyn Timberlake, Harro Seelaar, Ione O.C. Woollacott, Sara Prioni, Jason D. Warren, Cristina Polito, Miguel Tábuas-Pereira, David F. Tang-Wai, Carmela Tartaglia, Linn Öijerstedt, Luisa Benussi, Barbara Borroni, Ricardo Taipa, Albert Lladó, Mircea Balasa, Rosa Rademakers, Lize C. Jiskoot, Miguel Castelo-Branco, Julia Remnestål, Fabrizio Tagliavini, Giorgio Giaccone, Maria João Leitão, Henrik Zetterberg, Valentina Cantoni, Daniela Galimberti, Sarah Anderl-Straub, Simon Mead, Myriam Barandiaran, Adrian Danek, Timothy Rittman, Chiara Fenoglio, Katrina M. Moore, David M. Cash, Rik Vandenberghe, Peter Nilsson, Elisabeth Wlasich, John C. van Swieten, Morris Freedman, Sandra E. Black, Carolin Heller, Stefano Gazzina, Gabriel Miltenberger, Fermin Moreno, Nick C. Fox, David L. Thomas, Jonathan D. Rohrer, Begoña Indakoetxea, Tobias Hoegen, Gemma Lombardi, Elio Scarpini, Bergström, Sofia [0000-0003-2910-4754], Apollo - University of Cambridge Repository, Neurology, Amsterdam Neuroscience - Neurodegeneration, Genetic Frontotemporal Dementia Initiative (GENFI), Jiskoot, Lize (Beitragende*r), Rowe, James B. (Beitragende*r), de Mendonça, Alexandre (Beitragende*r), Tagliavini, Fabrizio (Beitragende*r), Santana, Isabel (Beitragende*r), Le Ber, Isabelle (Beitragende*r), Levin, Johannes (Beitragende*r), Danek, Adrian (Beitragende*r), Otto, Markus (Beitragende*r), Frisoni, Giovanni (Beitragende*r), Ghidoni, Roberta (Beitragende*r), Sorbi, Sandro (Beitragende*r), Pasquier, Florence (Beitragende*r), Jelic, Vesna (Beitragende*r), Andersson, Christin (Beitragende*r), Afonso, Sónia (Beitragende*r), Almeida, Maria Rosario (Beitragende*r), Anderl-Straub, Sarah (Beitragende*r), Antonell, Anna (Beitragende*r), Archetti, Silvana (Beitragende*r), Arighi, Andrea (Beitragende*r), Balasa, Mircea (Beitragende*r), Barandiaran, Myriam (Beitragende*r), Bargalló, Nuria (Beitragende*r), Bartha, Robart (Beitragende*r), Bender, Benjamin (Beitragende*r), Benussi, Alberto (Beitragende*r), Benussi, Luisa (Beitragende*r), Bessi, Valentina (Beitragende*r), Binetti, Giuliano (Beitragende*r), Black, Sandra (Beitragende*r), Bocchetta, Martina (Beitragende*r), Borrego-Ecija, Sergi (Beitragende*r), Bras, Jose (Beitragende*r), Bruffaerts, Rose (Beitragende*r), Cañada, Marta (Beitragende*r), Cantoni, Valentina (Beitragende*r), Caroppo, Paola (Beitragende*r), Cash, David (Beitragende*r), Castelo-Branco, Miguel (Beitragende*r), Convery, Rhian (Beitragende*r), Cope, Thomas (Beitragende*r), Di Fede, Giuseppe (Beitragende*r), Díez, Alina (Beitragende*r), Duro, Diana (Beitragende*r), Fenoglio, Chiara (Beitragende*r), Ferrari, Camilla (Beitragende*r), Ferreira, Catarina B. (Beitragende*r), Fox, Nick (Beitragende*r), Freedman, Morris (Beitragende*r), Fumagalli, Giorgio (Beitragende*r), Gabilondo, Alazne (Beitragende*r), Gasparotti, Roberto (Beitragende*r), Gauthier, Serge (Beitragende*r), Gazzina, Stefano (Beitragende*r), Giaccone, Giorgio (Beitragende*r), Gorostidi, Ana (Beitragende*r), Greaves, Caroline (Beitragende*r), Guerreiro, Rita (Beitragende*r), Heller, Carolin (Beitragende*r), Hoegen, Tobias (Beitragende*r), Indakoetxea, Begoña (Beitragende*r), Karnath, Hans-Otto (Beitragende*r), Keren, Ron (Beitragende*r), Langheinrich, Tobias (Beitragende*r), Leitão, Maria João (Beitragende*r), Lladó, Albert (Beitragende*r), Lombardi, Gemma (Beitragende*r), Loosli, Sandra (Beitragende*r), Maruta, Carolina (Beitragende*r), Mead, Simon (Beitragende*r), Meeter, Lieke (Beitragende*r), Miltenberger, Gabriel (Beitragende*r), van Minkelen, Rick (Beitragende*r), Mitchell, Sara (Beitragende*r), Moore, Katrina (Beitragende*r), Nacmias, Benedetta (Beitragende*r), Nicholas, Jennifer (Beitragende*r), Olives, Jaume (Beitragende*r), Ourselin, Sebastien (Beitragende*r), Padovani, Alessandro (Beitragende*r), Panman, Jessica (Beitragende*r), Papma, Janne M. (Beitragende*r), Peakman, Georgia (Beitragende*r), Pievani, Michela (Beitragende*r), Pijnenburg, Yolande (Beitragende*r), Polito, Cristina (Beitragende*r), Premi, Enrico (Beitragende*r), Prioni, Sara (Beitragende*r), Prix, Catharina (Beitragende*r), Rademakers, Rosa (Beitragende*r), Redaelli, Veronica (Beitragende*r), Rittman, Tim (Beitragende*r), Rogaeva, Ekaterina (Beitragende*r), Rosa-Neto, Pedro (Beitragende*r), Rossi, Giacomina (Beitragende*r), Rosser, Martin (Beitragende*r), Santiago, Beatriz (Beitragende*r), Scarpini, Elio (Beitragende*r), Schönecker, Sonja (Beitragende*r), Semler, Elisa (Beitragende*r), Shafei, Rachelle (Beitragende*r), Shoesmith, Christen (Beitragende*r), Tábuas-Pereira, Miguel (Beitragende*r), Tainta, Mikel (Beitragende*r), Taipa, Ricardo (Beitragende*r), Tang-Wai, David (Beitragende*r), Thomas, David L. (Beitragende*r), Thompson, Paul (Beitragende*r), Thonberg, Håkan (Beitragende*r), Timberlake, Carolyn (Beitragende*r), Tiraboschi, Pietro (Beitragende*r), Todd, Emily (Beitragende*r), Van Damme, Philip (Beitragende*r), Vandenbulcke, Mathieu (Beitragende*r), Veldsman, Michele (Beitragende*r), Verdelho, Ana (Beitragende*r), Villanua, Jorge (Beitragende*r), Warren, Jason (Beitragende*r), Wilke, Carlo (Beitragende*r), Woollacott, Ione (Beitragende*r), Wlasich, Elisabeth (Beitragende*r), Zetterberg, Henrik (Beitragende*r), and Zulaica, Miren (Beitragende*r)

Subjects
medicine.medical_specialty, Neurology, NEFM, Medizin, genetics [Mutation], LASSO, Biology, Aquaporin 4 (AQP4), Neurosecretory protein VGF (VGF), DISEASE, genetics [Progranulins], Cellular and Molecular Neuroscience, Progranulins, CEREBROSPINAL-FLUID, C9orf72, ddc:570, medicine, CRITERIA, Humans, Neuronal pentraxin 2 (NPTX2), RC346-429, genetics [Frontotemporal Dementia], Molecular Biology, Pathological, Genetics, Science & Technology, Neurosciences, RC952-954.6, Brain, Neurofilament medium polypeptide (NEFM), medicine.disease, Molecular medicine, Cerebrospinal fluid, Aquaporin 4, Geriatrics, Suspension bead array, Frontotemporal Dementia, Mutation, Mutation (genetic algorithm), Neurosciences & Neurology, Neurology. Diseases of the nervous system, Neurology (clinical), Life Sciences & Biomedicine, Random forest, Biomarkers, Research Article, Frontotemporal dementia
Abstract

Availability of data and materials: The datasets used and/or analysed during the current study are available from the corresponding author on reasonable request. Supplementary Information: Additional file 1 of A panel of CSF proteins separates genetic frontotemporal dementia from presymptomatic mutation carriers: a GENFI study; Additional file 2 of A panel of CSF proteins separates genetic frontotemporal dementia from presymptomatic mutation carriers: a GENFI study; both files are available online at https://doi.org/10.1186/s13024-021-00499-4 Copyright © The Author(s) 2021. Background: A detailed understanding of the pathological processes involved in genetic frontotemporal dementia is critical in order to provide the patients with an optimal future treatment. Protein levels in CSF have the potential to reflect different pathophysiological processes in the brain. We aimed to identify and evaluate panels of CSF proteins with potential to separate symptomatic individuals from individuals without clinical symptoms (unaffected), as well as presymptomatic individuals from mutation non-carriers. Methods: A multiplexed antibody-based suspension bead array was used to analyse levels of 111 proteins in CSF samples from 221 individuals from families with genetic frontotemporal dementia. The data was explored using LASSO and Random forest. Results: When comparing affected individuals with unaffected individuals, 14 proteins were identified as potentially important for the separation. Among these, four were identified as most important, namely neurofilament medium polypeptide (NEFM), neuronal pentraxin 2 (NPTX2), neurosecretory protein VGF (VGF) and aquaporin 4 (AQP4). The combined profile of these four proteins successfully separated the two groups, with higher levels of NEFM and AQP4 and lower levels of NPTX2 in affected compared to unaffected individuals. VGF contributed to the models, but the levels were not significantly lower in affected individuals. Next, when comparing presymptomatic GRN and C9orf72 mutation carriers in proximity to symptom onset with mutation non-carriers, six proteins were identified with a potential to contribute to a separation, including progranulin (GRN). Conclusion: In conclusion, we have identified several proteins with the combined potential to separate affected individuals from unaffected individuals, as well as proteins with potential to contribute to the separation between presymptomatic individuals and mutation non-carriers. Further studies are needed to continue the investigation of these proteins and their potential association to the pathophysiological mechanisms in genetic FTD. This study has received support from the Swedish FTD initiative funded by the Schörling Family Foundation. This work was also funded by KTH Center for Applied Precision Medicine (KCAP) funded by the Erling-Persson Family Foundation, grants from Vetenskapsrådet Dnr 529-2014-7504, VR 2015-02926 and 2018-02754, Swedish Alzheimer Foundation, Swedish Brain Foundation, Åhlén foundation, Demensfonden, Stohnes foundation, Gamla Tjänarinnor and Stockholm County Council ALF. Furthermore, support was received by the MRC UK GENFI grant (MR/M023664/1), the Bluefield Project, the JPND GENFI-PROX grant (2019-02248), the Dioraphte Foundation [grant numbers 09-02-00]; the Association for Frontotemporal Dementias Research Grant 2009; The Netherlands Organization for Scientific Research (NWO) (grant HCMI 056-13-018); ZonMw Memorabel (Deltaplan Dementie), (project numbers 733 050 103 and 733 050 813); JPND PreFrontAls consortium (project number 733051042). JDR is supported by an MRC Clinician Scientist Fellowship (MR/M008525/1) and has received funding from the NIHR Rare Disease Translational Research Collaboration (BRC149/NS/MH). Several authors of this publication are members of the European Reference Network for Rare Neurological Diseases - Project ID No 739510. M.S. was supported by the JPND grant “GENFI-prox” (by DLR/BMBF to M. S, joint with JDR., J.vS., M.O., B.B. and C.G.). Open Access funding provided by Royal Institute of Technology.

Published
2021

24. Sex differences in early-onset Alzheimer's disease

Author

José Contador, Agnès Pérez‐Millan, Nuria Guillén, Jordi Sarto, Adrià Tort‐Merino, Mircea Balasa, Neus Falgàs, Magdalena Castellví, Sergi Borrego‐Écija, Jordi Juncà‐Parella, Beatriz Bosch, Guadalupe Fernández‐Villullas, Oscar Ramos‐Campoy, Anna Antonell, Nuria Bargalló, Raquel Sanchez‐Valle, Roser Sala‐Llonch, and Albert Lladó

Subjects
Male, Sex Characteristics, Cognition, Neurology, Alzheimer Disease, Humans, Female, Neurology (clinical), Atrophy, Magnetic Resonance Imaging, Biomarkers
Abstract

Sex is believed to drive heterogeneity in Alzheimer's disease (AD), although evidence in early-onset AD (EOAD;lt;65 years) is scarce.We included 62 EOAD patients and 44 healthy controls (HCs) with core AD cerebrospinal fluid (CSF) biomarkers, neurofilament light chain levels, neuropsychological assessment, and 3-T magnetic resonance imaging. We measured cortical thickness (CTh) and hippocampal subfield volumes (HpS) using FreeSurfer. Adjusted linear models were used to analyze sex-differences and the relationship between atrophy and cognition.Compared to same-sex HCs, female EOAD subjects showed greater cognitive impairment and broader atrophy burden than male EOAD subjects. In a direct female-EOAD versus male-EOAD comparison, there were slight differences in temporal CTh, with no differences in cognition or HpS. CSF tau levels were higher in female EOAD than in male EOAD subjects. Greater atrophy was associated with worse cognition in female EOAD subjects.At diagnosis, there are sex differences in the pattern of cognitive impairment, atrophy burden, and CSF tau in EOAD, suggesting there is an influence of sex on pathology spreading and susceptibility to the disease in EOAD.

Published
2022

25. Diagnostic Performance and Clinical Applicability of Blood-Based Biomarkers in a Prospective Memory Clinic Cohort

Author

Jordi Sarto, Raquel Ruiz-García, Núria Guillén, Óscar Ramos-Campoy, Neus Falgàs, Diana Esteller, José Contador, Guadalupe Fernández, Yolanda González, Adrià Tort-Merino, Jordi Juncà-Parella, Bea Bosch, Sergi Borrego-Écija, Laura Molina-Porcel, Magda Castellví, Miguel Vergara, Anna Antonell, Josep María Augé, Laura Naranjo, Raquel Sanchez-Valle, Albert Lladó, and Mircea Balasa

Subjects
Neurology (clinical), Research Article
Abstract

Background and ObjectivesBlood-based biomarkers have emerged as minimally invasive options for evaluating cognitive impairment. Most studies to date have assessed them in research cohorts, limiting their generalization to everyday clinical practice. We evaluated their diagnostic performance and clinical applicability in a prospective, real-world, memory clinic cohort.MethodsAll patients referred with suspected cognitive impairment between July 2019 and June 2021 were prospectively invited to participate. Five plasma biomarkers (tau phosphorylated at threonine 181 [p-tau181], glial fibrillary acidic protein [GFAP], neurofilament light chain [NfL], total tau [t-tau], and ubiquitin C-terminal hydrolase L1 [UCH-L1]) were determined with single-molecule array. Performance was assessed in comparison to clinical diagnosis (blinded to plasma results) and amyloid status (CSF/PET). A group of cognitively unimpaired (CU) controls was also included.ResultsThree hundred forty-nine participants (mean age 68, SD 8.3 years) and 36 CU controls (mean age 61.7, SD 8.2 years) were included. In the subcohort with available Alzheimer disease (AD) biomarkers (n = 268), plasma p-tau181 and GFAP had a high diagnostic accuracy to differentiate AD from non-neurodegenerative causes (area under the receiver operating characteristic curve 0.94 and 0.92, respectively), with p-tau181 systematically outperforming GFAP. Plasma p-tau181 levels predicted amyloid status (85% sensitivity and specificity) with accurate individual prediction in approximately 60% of the patients. Plasma NfL differentiated frontotemporal dementia (FTD) syndromes from CU (0.90) and non-neurodegenerative causes (0.93), whereas the discriminative capacity with AD and between all neurodegenerative and non-neurodegenerative causes was less accurate. A combination of p-tau181 and NfL identified FTD with 82% sensitivity and 85% specificity and had a negative predictive value for neurodegenerative diagnosis of 86%, ruling out half of the non-neurodegenerative diagnoses. In the subcohort without AD biomarkers, similar results were obtained. T-tau and UCH-L1 did not offer added diagnostic value.DiscussionPlasma p-tau181 predicted amyloid status with high accuracy and could have potentially avoided CSF/amyloid PET testing in approximately 60% of subjects in a memory clinic setting. NfL was useful for identifying FTD from non-neurodegenerative causes but behaved worse than p-tau181 in all other comparisons. Combining p-tau181 and NfL improved diagnostic performance for FTD and non-neurodegenerative diagnoses. However, the 14% false-negative results suggest that further improvement is needed before implementation outside memory clinics.Classification of EvidenceThis study provides Class I evidence that plasma p-tau181 correlates with the presence or absence of AD and a combination of plasma p-tau181 and NfL correlates moderately well with a diagnosis of FTD.

Published
2022

26. Rivaroxaban for the treatment of cerebral venous thrombosis: a single-center experience

Author

Zoltan Bajko, Adina Stoian, Rodica Balasa, Sebastian Andone, Rares Cristian Filep, Anca Motataianu, and Smaranda Maier

Subjects
Male, medicine.medical_specialty, medicine.drug_mechanism_of_action, Factor Xa Inhibitor, Context (language use), law.invention, Young Adult, 03 medical and health sciences, 0302 clinical medicine, Rivaroxaban, Randomized controlled trial, Modified Rankin Scale, law, Internal medicine, medicine, Humans, 030212 general & internal medicine, Aged, Retrospective Studies, Venous Thrombosis, business.industry, Anticoagulants, General Medicine, Heparin, Middle Aged, medicine.disease, Venous thrombosis, Treatment Outcome, Female, Apixaban, Neurology (clinical), Intracranial Thrombosis, business, 030217 neurology & neurosurgery, Factor Xa Inhibitors, medicine.drug
Abstract

The mainstay of cerebral venous thrombosis (CVT) treatment according to current guidelines is parenteral anticoagulation with unfractionated heparin or low-molecular-weight heparin followed by long-term oral anticoagulation with vitamin K antagonists. Direct oral anticoagulants (DOACs), including the factor Xa inhibitor rivaroxaban, are used occasionally off-label for CVT based on individual treatment plans. This publication sought to report our experience with rivaroxaban for the indication of CVT and to review the relevant literature data concerning this topic. We performed a single-center retrospective analysis including patients from our institution with the diagnosis of cerebral venous thrombosis treated with rivaroxaban. Among 12,500 stroke patients over an 11-year period, we identified 87 cases with a diagnosis of CVT (0.7%). As long-term anticoagulation, 80 of these patients were receiving vitamin K antagonists and seven were receiving DOACs, including six receiving rivaroxaban and one receiving apixaban. Of the six patients receiving rivaroxaban, at least 6 months of clinical follow-up data were available for five of them. Excellent clinical outcomes were obtained in four of these five cases (modified Rankin scale score: 0-1 points). No hemorrhagic events, recurrent thrombosis, or other relevant complications were recorded during the follow-up period. Despite our small study sample size, our positive results support that rivaroxaban may be a safe and effective treatment option for patients with CVT. Hopefully, ongoing randomized clinical trials will better clarify the role of rivaroxaban in the treatment of CVT so as to provide a more convenient and safer alternative to vitamin K antagonists in this context.

Published
2021

27. Modelling the cascade of biomarker changes in GRN-related frontotemporal dementia

Author

Panman, J. L., Venkatraghavan, V., Van Der Ende, E. L., Steketee, R. M. E., Jiskoot, L. C., Poos, J. M., Dopper, E. G. P., Meeter, L. H. H., Kaat, L. D., Rombouts, S. A. R. B., Vernooij, M. W., Kievit, A. J. A., Premi, E., Cosseddu, M., Bonomi, E., Olives, J., Rohrer, J. D., Sanchez-Valle, R., Borroni, B., Bron, E. E., Van Swieten, J. C., Papma, J. M., Klein, S., Afonso, S., Almeida, M. R., Anderl-Straub, S., Andersson, C., Antonell, A., Archetti, S., Arighi, A., Balasa, M., Barandiaran, M., Bargallo, N., Bartha, R., Bender, B., Black, S., Butler, C., Bocchetta, M., Borrego-Ecija, S., Bras, J., Bruffaerts, R., Caroppo, P., Cash, D., Castelo-Branco, M., Convery, R., Cope, T., Danek, A., De Arriba, M., De Mendonca, A., Di Fede, G., Diaz, Z., Ducharme, S., Duro, D., Fenoglio, C., Ferreira, C. B., Finger, E., Flanagan, T., Fox, N., Freedman, M., Fumagalli, G., Gabilondo, A., Galimberti, D., Gasparotti, R., Gauthier, S., Gazzina, S., Gerhard, A., Giaccone, G., Gorostidi, A., Graff, C., Greaves, C., Guerreiro, R., Heller, C., Hoegen, T., Indakoetxea, B., Jelic, V., Karnath, H. -O., Keren, R., Laforce, R., Leitao, M. J., Levin, J., Llado, A., Loosli, S., Maruta, C., Masellis, M., Mead, S., Miltenberger, G., Van Minkelenm Sara Mitchell, R., Moore, K., Moreno, F., Nicholas, J., Oijerstedt, L., Otto, M., Ourselin, S., Padovani, A., Peakman, G., Pijnenburg, Y., Polito, C., Prioni, S., Prix, C., Rademakers, R., Redaelli, V., Rittman, T., Rogaeva, E., Rosa-Neto, P., Rossi, G., Rosser, M., Rowe, J., Santana, I., Santiago, B., Scarpini, E., Schonecker, S., Shafei, E. S. R., Shoesmith, C., Synofzik, M., Tabuas-Pereira, M., Tagliavini, F., Tartaglia, C., Tainta, M., Taipa, R., Tang-Wai, D., Thomas, D. L., Thonberg, H., Timberlake, C., Tiraboschi, P., Todd, E., Vandamme, P., Vandenberghe, R., Vandenbulcke, M., Veldsman, M., Verdelho, A., Villanua, J., Warren, J., Wilkeione, C., Elisabeth, W., Henrik, W., Zulaica, Z. M., Neurology, Physics and medical technology, Radiology & Nuclear Medicine, Clinical Genetics, and Medical Research Council

Subjects
Male, Oncology, Disease, Neuropsychological Tests, GENFI consortium investigators, Primary progressive aphasia, Cognition, Progranulins, 0302 clinical medicine, Neurofilament Proteins, BEHAVIORAL VARIANT, HETEROGENEITY, Gray Matter, 11 Medical and Health Sciences, Language, Psychiatry, 0303 health sciences, Brain, Middle Aged, Magnetic Resonance Imaging, White Matter, 17 Psychology and Cognitive Sciences, ALZHEIMERS-DISEASE, Psychiatry and Mental health, Phenotype, medicine.anatomical_structure, Frontotemporal Dementia, Disease Progression, Biomarker (medicine), Female, Life Sciences & Biomedicine, Frontotemporal dementia, medicine.medical_specialty, Clinical Neurology, EVENT-BASED MODEL, Grey matter, Lateralization of brain function, White matter, 03 medical and health sciences, SDG 3 - Good Health and Well-being, Internal medicine, NEUROFILAMENT LIGHT-CHAIN, medicine, Humans, LOBAR DEGENERATION, PROGRANULIN, Aged, 030304 developmental biology, Science & Technology, Neurology & Neurosurgery, business.industry, DISEASE PROGRESSION, medicine.disease, Mutation, WHITE-MATTER INTEGRITY, Surgery, Neurosciences & Neurology, Neurology (clinical), business, GENFI, Biomarkers, 030217 neurology & neurosurgery, Progressive disease
Abstract

ObjectiveProgranulin-related frontotemporal dementia (FTD-GRN) is a fast progressive disease. Modelling the cascade of multimodal biomarker changes aids in understanding the aetiology of this disease and enables monitoring of individual mutation carriers. In this cross-sectional study, we estimated the temporal cascade of biomarker changes for FTD-GRN, in a data-driven way.MethodsWe included 56 presymptomatic and 35 symptomatic GRN mutation carriers, and 35 healthy non-carriers. Selected biomarkers were neurofilament light chain (NfL), grey matter volume, white matter microstructure and cognitive domains. We used discriminative event-based modelling to infer the cascade of biomarker changes in FTD-GRN and estimated individual disease severity through cross-validation. We derived the biomarker cascades in non-fluent variant primary progressive aphasia (nfvPPA) and behavioural variant FTD (bvFTD) to understand the differences between these phenotypes.ResultsLanguage functioning and NfL were the earliest abnormal biomarkers in FTD-GRN. White matter tracts were affected before grey matter volume, and the left hemisphere degenerated before the right. Based on individual disease severities, presymptomatic carriers could be delineated from symptomatic carriers with a sensitivity of 100% and specificity of 96.1%. The estimated disease severity strongly correlated with functional severity in nfvPPA, but not in bvFTD. In addition, the biomarker cascade in bvFTD showed more uncertainty than nfvPPA.ConclusionDegeneration of axons and language deficits are indicated to be the earliest biomarkers in FTD-GRN, with bvFTD being more heterogeneous in disease progression than nfvPPA. Our data-driven model could help identify presymptomatic GRN mutation carriers at risk of conversion to the clinical stage.

Published
2021

28. The CBI-R detects early behavioural impairment in genetic frontotemporal dementia

Author

Nelson, Annabel, Russell, Lucy L., Moreno, Fermin, Minkelen, Rick, Mitchell, Sara, Moore, Katrina, Nacmias, Benedetta, Öijerstedt, Linn, Olives, Jaume, Ourselin, Sebastien, Padovani, Alessandro, Panman, Jessica, Sanchez-Valle, Raquel, Papma, Janne M., Pijnenburg, Yolande, Polito, Cristina, Premi, Enrico, Prioni, Sara, Prix, Catharina, Rademakers, Rosa, Redaelli, Veronica, Rinaldi, Daisy, Rittman, Tim, Laforce, Robert, Rogaeva, Ekaterina, Rollin, Adeline, Rosa-Neto, Pedro, Rossi, Giacomina, Rossor, Martin, Santiago, Beatriz, Saracino, Dario, Sayah, Sabrina, Scarpini, Elio, Schönecker, Sonja, Graff, Caroline, Seelaar, Harro, Semler, Elisa, Shafei, Rachelle, Shoesmith, Christen, Swift, Imogen, Tábuas-Pereira, Miguel, Tainta, Mikel, Taipa, Ricardo, Tang-Wai, David, Thomas, David L., Masellis, Mario, Thompson, Paul, Thonberg, Hakan, Timberlake, Carolyn, Tiraboschi, Pietro, Todd, Emily, Van Damme, Philip, Vandenbulcke, Mathieu, Veldsman, Michele, Verdelho, Ana, Villanua, Jorge, Tartaglia, Maria Carmela, Warren, Jason, Wilke, Carlo, Wlasich, Elisabeth, Zetterberg, Henrik, Zulaica, Miren, Rowe, James B., Borroni, Barbara, Finger, Elizabeth, Synofzik, Matthis, Peakman, Georgia, Galimberti, Daniela, Vandenberghe, Rik, Mendonça, Alexandre, Butler, Chris R., Gerhard, Alexander, Ducharme, Simon, Le Ber, Isabelle, Santana, Isabel, Pasquier, Florence, Levin, Johannes, Convery, Rhian S., Otto, Markus, Sorbi, Sandro, Rohrer, Jonathan D., Afonso, Sónia, Almeida, Maria Rosario, Anderl-Straub, Sarah, Andersson, Christin, Antonell, Anna, Archetti, Silvana, Arighi, Andrea, Bouzigues, Arabella, Balasa, Mircea, Barandiaran, Myriam, Bargalló, Nuria, Bartha, Robart, Bender, Benjamin, Benussi, Alberto, Bertoux, Maxime, Bertrand, Anne, Bessi, Valentina, Black, Sandra, Greaves, Caroline V., Bocchetta, Martina, Borrego-Ecija, Sergi, Bras, Jose, Brice, Alexis, Bruffaerts, Rose, Camuzat, Agnès, Cañada, Marta, Cantoni, Valentina, Caroppo, Paola, Cash, David, Castelo-Branco, Miguel, Colliot, Olivier, Cope, Thomas, Deramecourt, Vincent, Arriba, María, Di Fede, Giuseppe, Díez, Alina, Duro, Diana, Fenoglio, Chiara, Ferrari, Camilla, Cash, David M., Ferreira, Catarina B., Fox, Nick, Freedman, Morris, Fumagalli, Giorgio, Funkiewiez, Aurélie, Gabilondo, Alazne, Gasparotti, Roberto, Gauthier, Serge, Gazzina, Stefano, Giaccone, Giorgio, Swieten, John C., Gorostidi, Ana, Greaves, Caroline, Guerreiro, Rita, Heller, Carolin, Hoegen, Tobias, Indakoetxea, Begoña, Jelic, Vesna, Karnath, Hans Otto, Keren, Ron, Kuchcinski, Gregory, Jiskoot, Lize, Langheinrich, Tobias, Lebouvier, Thibaud, Leitão, Maria João, Lladó, Albert, Lombardi, Gemma, Loosli, Sandra, Maruta, Carolina, Mead, Simon, Meeter, Lieke, Miltenberger, Gabriel, Neurology, Clinical Genetics, Genetic FTD Initiative (GENFI), Russell, Lucy L [0000-0001-5023-5893], Bocchetta, Martina [0000-0003-1814-5024], Sanchez-Valle, Raquel [0000-0001-7750-896X], Laforce, Robert [0000-0002-2031-490X], Borroni, Barbara [0000-0001-9340-9814], Finger, Elizabeth [0000-0003-4461-7427], Synofzik, Matthis [0000-0002-2280-7273], Galimberti, Daniela [0000-0002-9284-5953], Ducharme, Simon [0000-0002-7309-1113], Le Ber, Isabelle [0000-0002-2508-5181], Rohrer, Jonathan D [0000-0002-6155-8417], Apollo - University of Cambridge Repository, and Amsterdam Neuroscience - Neurodegeneration

Subjects
FUNCTIONAL BRAIN CONNECTIVITY, Clinical Neurology, Medizin, PROGRESSION, tau Proteins, C9orf72 Protein, Humans, Progranulins, Frontotemporal Dementia, Pick Disease of the Brain, ATROPHY, genetics [Progranulins], diagnosis [Frontotemporal Dementia], mental disorders, ddc:610, genetics [C9orf72 Protein], genetics [Frontotemporal Dementia], Research Articles, Science & Technology, HEXANUCLEOTIDE REPEAT, MUTATIONS, General Neuroscience, TEMPORAL VARIANT, Neurosciences, genetics [tau Proteins], Neurosciences & Neurology, Neurology (clinical), TAU, FTLD, Life Sciences & Biomedicine, Research Article
Abstract

Funder: UK Dementia Research Institute, Funder: NIHR UCL/H Biomedical Research Centre, Funder: The Wolfson Foundation, Funder: Brain Research UK; Id: http://dx.doi.org/10.13039/100013790, Funder: Alzheimer’s Research UK; Id: http://dx.doi.org/10.13039/501100002283, INTRODUCTION: Behavioural dysfunction is a key feature of genetic frontotemporal dementia (FTD) but validated clinical scales measuring behaviour are lacking at present. METHODS: We assessed behaviour using the revised version of the Cambridge Behavioural Inventory (CBI-R) in 733 participants from the Genetic FTD Initiative study: 466 mutation carriers (195 C9orf72, 76 MAPT, 195 GRN) and 267 non-mutation carriers (controls). All mutation carriers were stratified according to their global CDR plus NACC FTLD score into three groups: asymptomatic (CDR = 0), prodromal (CDR = 0.5) and symptomatic (CDR = 1+). Mixed-effects models adjusted for age, education, sex and family clustering were used to compare between the groups. Neuroanatomical correlates of the individual domains were assessed within each genetic group. RESULTS: CBI-R total scores were significantly higher in all CDR 1+ mutation carrier groups compared with controls [C9orf72 mean 70.5 (standard deviation 27.8), GRN 56.2 (33.5), MAPT 62.1 (36.9)] as well as their respective CDR 0.5 groups [C9orf72 13.5 (14.4), GRN 13.3 (13.5), MAPT 9.4 (10.4)] and CDR 0 groups [C9orf72 6.0 (7.9), GRN 3.6 (6.0), MAPT 8.5 (13.3)]. The C9orf72 and GRN 0.5 groups scored significantly higher than the controls. The greatest impairment was seen in the Motivation domain for the C9orf72 and GRN symptomatic groups, whilst in the symptomatic MAPTgroup, the highest-scoring domains were Stereotypic and Motor Behaviours and Memory and Orientation. Neural correlates of each CBI-R domain largely overlapped across the different mutation carrier groups. CONCLUSIONS: The CBI-R detects early behavioural change in genetic FTD, suggesting that it could be a useful measure within future clinical trials.

Published
2022

29. Development of a sensitive trial-ready poly(GP) CSF biomarker assay for C9orf72-associated frontotemporal dementia and amyotrophic lateral sclerosis

Author

Wilson, Katherine M, Katona, Eszter, Knowles, Kathryn, Lebouvier, Thibaud, Leitão, Maria João, Levin, Johannes, Lladó, Albert, Lombardi, Gemma, Lombardi, Jolina, Loosli, Sandra, Maruta, Carolina, Mead, Simon, Miltenberger, Gabriel, Patil, Saurabh, Minkelen, Rick van, Mitchell, Sara, Moreno, Fermin, Nacmias, Benedetta, Nelson, Annabel, Nicholas, Jennifer, Öijerstedt, Linn, Papma, Janne M, Pasquier, Florence, Peakman, Georgia, Mohapatra, Susovan, Pijnenburg, Yolande, Polito, Cristina, Premi, Enrico, Prioni, Sara, Prix, Catharina, Redaelli, Veronica, Rinaldi, Daisy, Rittman, Tim, Rogaeva, Ekaterina, Rosa-Neto, Pedro, Liu, Yuanjing, Rossi, Giacomina, Rossor, Martin, Santana, Isabel, Santiago, Beatriz, Saracino, Dario, Scarpini, Elio, Schönecker, Sonja, Shafei, Rachelle, Shoesmith, Christen, Sorbi, Sandro, Goyal, Jaya, Tábuas-Pereira, Miguel, Tagliavini, Fabrizio, Tainta, Mikel, Taipa, Ricardo, Tang-Wai, David, Thomas, David L, Thompson, Paul, Timberlake, Carolyn, Tiraboschi, Pietro, Todd, Emily, Sanchez-Valle, Raquel, Damme, Philip Van, Vandenbulcke, Mathieu, Verdelho, Ana, Villanua, Jorge, Warren, Jason, Wilke, Carlo, Wlasich, Elisabeth, Zulaica, Miren, Laforce, Robert Jr, Synofzik, Matthis, Rowe, James B, Finger, Elizabeth, Glaria, Idoia, Vandenberghe, Rik, Butler, Christopher R, Gerhard, Alexander, Van Swieten, John C, Seelaar, Harro, Borroni, Barbara, Galimberti, Daniela, de Mendonça, Alexandre, Masellis, Mario, Tartaglia, M Carmela, Carcolé, Mireia, Otto, Markus, Graff, Caroline, Ducharme, Simon, Schott, Jonathan M, Malaspina, Andrea, Zetterberg, Henrik, Boyanapalli, Ramakrishna, Rohrer, Jonathan D, Isaacs, Adrian M, Initiative, Genetic FTD, Swift, Imogen J, Afonso, Sónia, Almeida, Maria Rosario, Anderl-Straub, Sarah, Andersson, Christin, Antonell, Anna, Archetti, Silvana, Arighi, Andrea, Balasa, Mircea, Barandiaran, Myriam, Bargalló, Nuria, Sogorb-Esteve, Aitana, Bartha, Robart, Bender, Benjamin, Benussi, Alberto, Bertoux, Maxime, Bertrand, Anne, Bessi, Valentina, Black, Sandra, Bocchetta, Martina, Borrego-Ecija, Sergi, Bras, Jose, Heller, Carolin, Brice, Alexis, Bruffaerts, Rose, Camuzat, Agnès, Cañada, Marta, Cantoni, Valentina, Caroppo, Paola, Cash, David, Castelo-Branco, Miguel, Colliot, Olivier, Convery, Rhian, Bouzigues, Arabella, Cope, Thomas, Danek, Adrian, Deramecourt, Vincent, Fede, Giuseppe Di, Díez, Alina, Duro, Diana, Fenoglio, Chiara, Ferrari, Camilla, Ferreira, Catarina B, Fox, Nick, Heslegrave, Amanda J, Freedman, Morris, Fumagalli, Giorgio, Funkiewiez, Aurélie, Gabilondo, Alazne, Gasparotti, Roberto, Gauthier, Serge, Gazzina, Stefano, Giaccone, Giorgio, Gorostidi, Ana, Graf, Lisa, Keshavan, Ashvini, Greaves, Caroline, Guerreiro, Rita, Hoegen, Tobias, Indakoetxea, Begoña, Jelic, Vesna, Jiskoot, Lize, Keren, Ron, Kuchcinski, Gregory, Langheinrich, Tobias, Ber, Isabelle Le, and Neurology

Subjects
Frontotemporal dementia, motor disease, Biomarkers, C9orf72 Protein, DNA Repeat Expansion, Humans, Amyotrophic Lateral Sclerosis, Frontotemporal Dementia, C9ORF72 EXPANSION, PROTEINS, SENSE, Medizin, diagnosis [Amyotrophic Lateral Sclerosis], genetics [DNA Repeat Expansion], Clinical Neurology, FRONTOTEMPORAL DEMENTIA, MOTOR NEURON DISEASE, DIAGNOSIS, TOXICITY, diagnosis [Frontotemporal Dementia], SDG 3 - Good Health and Well-being, ddc:150, Settore BIO/13 - Biologia Applicata, CRITERIA, ddc:610, Motor neuron disease, genetics [C9orf72 Protein], genetics [Frontotemporal Dementia], Frontotemporale Demenz, Psychiatry, Science & Technology, HEXANUCLEOTIDE REPEAT, DDC 150 / Psychology, ANTISENSE TRANSCRIPTS, Myatrophische Lateralsklerose, Biomarker, Motoneuron, genetics [Amyotrophic Lateral Sclerosis], Psychiatry and Mental health, Cerebrospinal fluid, cerebrospinal fluid [Biomarkers], RNA FOCI, metabolism [Frontotemporal Dementia], cerebrospinal fluid [Amyotrophic Lateral Sclerosis], Surgery, Neurosciences & Neurology, Neurology (clinical), ALS, Life Sciences & Biomedicine, DDC 610 / Medicine & health
Abstract

ObjectiveA GGGGCC repeat expansion in the C9orf72 gene is the most common cause of genetic frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS). As potential therapies targeting the repeat expansion are now entering clinical trials, sensitive biomarker assays of target engagement are urgently required. Our objective was to develop such an assay.MethodsWe used the single molecule array (Simoa) platform to develop an immunoassay for measuring poly(GP) dipeptide repeat proteins (DPRs) generated by the C9orf72 repeat expansion in cerebrospinal fluid (CSF) of people with C9orf72-associated FTD/ALS.Results and conclusionsWe show the assay to be highly sensitive and robust, passing extensive qualification criteria including low intraplate and interplate variability, a high precision and accuracy in measuring both calibrators and samples, dilutional parallelism, tolerance to sample and standard freeze–thaw and no haemoglobin interference. We used this assay to measure poly(GP) in CSF samples collected through the Genetic FTD Initiative (N=40 C9orf72 and 15 controls). We found it had 100% specificity and 100% sensitivity and a large window for detecting target engagement, as the C9orf72 CSF sample with the lowest poly(GP) signal had eightfold higher signal than controls and on average values from C9orf72 samples were 38-fold higher than controls, which all fell below the lower limit of quantification of the assay. These data indicate that a Simoa-based poly(GP) DPR assay is suitable for use in clinical trials to determine target engagement of therapeutics aimed at reducing C9orf72 repeat-containing transcripts., publishedVersion

Published
2022

30. First-Onset Hypokalemic Periodic Paralysis Following Surgery for Myxopapillary Ependymoma

Author

Corina Hurghis, Smaranda Maier, Anca Motataianu, Flaviu Tamas, Adrian Balasa, and Rares Chinezu

Subjects
medicine.medical_specialty, Flaccid paralysis, Respiratory distress, business.industry, Tetraparesis, medicine.disease, Hypokalemia, Surgery, 03 medical and health sciences, 0302 clinical medicine, Lumbar, Hypokalemic periodic paralysis, Channelopathy, Spinal cord compression, 030220 oncology & carcinogenesis, medicine, Neurology (clinical), medicine.symptom, business, 030217 neurology & neurosurgery
Abstract

Background Hypokalemic periodic paralysis is a rare skeletal muscle channelopathy characterized by intermittent episodes of acute flaccid paralysis with associated hypokalemia. We present here the case of a first-onset hypokalemic periodic paralysis triggered by lumbar spinal surgery for tumor resection. Case Description A 37-year-old male without any known prior medical conditions presented with a first-onset attack of hypokalemic paralysis 1.5 days after lumbar spinal surgery for myxopapillary ependymoma. Initially, the patient presented paraparesis mimicking a spinal cord compression, and while en route for imaging there was an abrupt onset of flaccid paralysis with significant respiratory distress. The emergency blood tests revealed extreme hypokalemia with a serum potassium of 1.42 mm/L. The patient was transferred to the intensive care unit, intubated, sedated, and administered intravenous reperfusion with an infusion dose of 20 mEq/hour potassium in a solution of 5% mannitol. Following reperfusion, the patient recovered completely in 12 hours. Renal potassium hyperexcretion and hyperthyroidism were excluded by laboratory tests. The diagnosis was confirmed by genetic tests showing mutation of the CACNA1S gene. Conclusions To the best of our knowledge, this is the first described case with the first onset triggered by a neurosurgical intervention and the second case following any kind of surgery. Neurosurgeons should consider hypokalemic periodic paralysis when encountering a rapidly evolving tetraparesis, even in an apparently healthy patient.

Published
2020

31. The Main Determinants for Suicidal Ideation in a Romanian Cohort of Multiple Sclerosis Patients

Author

Septimiu Voidazan, Laura Iulia Bărcuţean, Nicoleta Stirbu, Zoltan Bajko, Sebastian Andone, Rodica Balasa, Andreea Romaniuc, Smaranda Maier, and Anca Moţăţăianu

Subjects
Adult, Male, Suicide Prevention, medicine.medical_specialty, Multiple Sclerosis, Article Subject, Population, Neurosciences. Biological psychiatry. Neuropsychiatry, Neurological examination, Suicidal Ideation, Cohort Studies, Disability Evaluation, 03 medical and health sciences, Multiple Sclerosis, Relapsing-Remitting, 0302 clinical medicine, Recurrence, Surveys and Questionnaires, Internal medicine, Prevalence, medicine, Humans, Disabled Persons, 030212 general & internal medicine, education, Suicidal ideation, Depression (differential diagnoses), Psychiatric Status Rating Scales, education.field_of_study, Clinically isolated syndrome, Expanded Disability Status Scale, medicine.diagnostic_test, Depression, Romania, business.industry, Multiple sclerosis, General Medicine, Middle Aged, medicine.disease, Suicide, Neuropsychology and Physiological Psychology, Neurology, Cohort, Female, Neurology (clinical), medicine.symptom, business, 030217 neurology & neurosurgery, Research Article, RC321-571
Abstract

Objective. To determine the prevalence of suicidal concerns (SC) in a large multiple sclerosis (MS) patient group and to assess the major determinants that are implicated in their occurrence.Methods. A total of 349 patients were included in the study. They completed a survey about their demographic characteristics, psycho-socio-economic data, and disease-related information. Their disability level was assessed using the Expanded Disability Status Scale (EDSS) based on the neurological examination performed by the same doctor for every patient and the SC were documented with the Beck Depression Inventory-II questionnaire.Results. The study included 112 men and 237 women, with a mean age around 42 years old. Suicidal thoughts were more frequent in men, while suicidal intentions in women. Positive correlations were found between SC and depression, EDSS, total number of relapses, disease duration, and level of education. From the EDSS functional scores, only the pyramidal score and the cerebellar score presented a significant correlation with SC. None of the patients with clinically isolated syndrome had SC. The type of disease-modifying therapy, marital and occupational status, and the presence of children did not influence the presence of SC.Conclusions. The prevalence of SC is higher in patients with MS compared to the general population. Their occurrence is mostly influenced by the disease itself (duration, relapses, acquired disability) and also by depression and lack of education.

Published
2020

32. Contribution of CSF biomarkers to early‐onset Alzheimer's disease and frontotemporal dementia neuroimaging signatures

Author

Sergi Borrego-Écija, Oscar Ramos-Campoy, Neus Falgàs, Mircea Balasa, Josep M. Augé, Albert Lladó, Henrik Zetterberg, Adrià Tort-Merino, Magdalena Castellví, Jaume Olives, Mariona Ruiz‐Peris, Raquel Sánchez-Valle, Guadalupe Fernández-Villullas, Núria Bargalló, Anna Antonell, Agnés Pérez‐Millan, Roser Sala-Llonch, and Kaj Blennow

Subjects
Male, Pathology, Hippocampus, 0302 clinical medicine, Cerebrospinal fluid, Neurofilament Proteins, Degeneració, Medicine, Early-onset Alzheimer's disease, Neurogranin, Age of Onset, Research Articles, Cerebral Cortex, Radiological and Ultrasound Technology, 05 social sciences, Frontotemporal lobar degeneration, Middle Aged, Alzheimer's disease, Magnetic Resonance Imaging, Diffusion Tensor Imaging, Neurology, Frontotemporal Dementia, Female, Anatomy, biological markers, Research Article, Frontotemporal dementia, medicine.medical_specialty, Neuroimaging, tau Proteins, 050105 experimental psychology, 03 medical and health sciences, Alzheimer Disease, mental disorders, Humans, 0501 psychology and cognitive sciences, Radiology, Nuclear Medicine and imaging, Amyloid beta-Peptides, business.industry, Líquid cefalorraquidi, medicine.disease, Peptide Fragments, Malaltia d'Alzheimer, 14-3-3 Proteins, Csf biomarkers, Degeneration, Neurology (clinical), Brain Gray Matter, business, Biomarkers, 030217 neurology & neurosurgery
Abstract

Prior studies have described distinct patterns of brain gray matter and white matter alterations in Alzheimer's disease (AD) and frontotemporal lobar degeneration (FTLD), as well as differences in their cerebrospinal fluid (CSF) biomarkers profiles. We aim to investigate the relationship between early‐onset AD (EOAD) and FTLD structural alterations and CSF biomarker levels. We included 138 subjects (64 EOAD, 26 FTLD, and 48 controls), all of them with a 3T MRI brain scan and CSF biomarkers available (the 42 amino acid‐long form of the amyloid‐beta protein [Aβ42], total‐tau protein [T‐tau], neurofilament light chain [NfL], neurogranin [Ng], and 14‐3‐3 levels). We used FreeSurfer and FSL to obtain cortical thickness (CTh) and fraction anisotropy (FA) maps. We studied group differences in CTh and FA and described the “AD signature” and “FTLD signature.” We tested multiple regression models to find which CSF‐biomarkers better explained each disease neuroimaging signature. CTh and FA maps corresponding to the AD and FTLD signatures were in accordance with previous literature. Multiple regression analyses showed that the biomarkers that better explained CTh values within the AD signature were Aβ and 14‐3‐3; whereas NfL and 14‐3‐3 levels explained CTh values within the FTLD signature. Similarly, NfL levels explained FA values in the FTLD signature. Ng levels were not predictive in any of the models. Biochemical markers contribute differently to structural (CTh and FA) changes typical of AD and FTLD.

Published
2020

33. Neuroimmunity in amyotrophic lateral sclerosis: focus on microglia

Author

Laura Barcutean, Rodica Balasa, and Anca Motataianu

Subjects
Neuroimmunomodulation, T-Lymphocytes, Central nervous system, Neuroprotection, 03 medical and health sciences, 0302 clinical medicine, Immune system, Animals, Humans, Medicine, Amyotrophic lateral sclerosis, Neuroinflammation, Immunity, Cellular, Innate immune system, Microglia, business.industry, Amyotrophic Lateral Sclerosis, medicine.disease, medicine.anatomical_structure, nervous system, Neurology, Cytokine secretion, Neurology (clinical), business, Neuroscience, 030217 neurology & neurosurgery
Abstract

Amyotrophic lateral sclerosis (ALS), an incurable, devastating condition of the central nervous system, is characterized by selective destruction of motoneurons with an important contribution of innate and adaptative immunity. Microglia and immune cells are key players in neuroinflammation and active participants in ALS pathogenesis. Recent experiments in animal models have shown that microglia display both neuroprotective and neurotoxic properties, depending on the stage of disease progression and cytokine secretion. A better knowledge of the interactions between T cells and microglia in the immunopathogenesis of ALS is desirable for the development of ALS therapeutic strategies.

Published
2020

34. Synaptic, axonal damage and inflammatory cerebrospinal fluid biomarkers in neurodegenerative dementias

Author

Albert Lladó, Henrik Zetterberg, Sergi Borrego-Écija, Anna Antonell, Josep M. Augé, Neus Falgàs, Raquel Sánchez-Valle, Mircea Balasa, Cristina Muñoz-García, Adrià Tort-Merino, José Ríos, Beatriz Bosch, José Luis Molinuevo, Oscar Ramos-Campoy, Kaj Blennow, and Lorena Rami

Subjects
Male, 0301 basic medicine, Pathology, medicine.medical_specialty, Epidemiology, Disease, Creutzfeldt-Jakob Syndrome, Synapse, 03 medical and health sciences, Cellular and Molecular Neuroscience, 0302 clinical medicine, Cerebrospinal fluid, Developmental Neuroscience, Alzheimer Disease, Neurofilament Proteins, mental disorders, medicine, Humans, Chitinase-3-Like Protein 1, Neurogranin, Neuroinflammation, Aged, Inflammation, business.industry, Health Policy, Neurodegeneration, Middle Aged, medicine.disease, Axons, nervous system diseases, Psychiatry and Mental health, 030104 developmental biology, Case-Control Studies, Frontotemporal Dementia, Mutation, Biomarker (medicine), Female, Neurology (clinical), Geriatrics and Gerontology, business, Biomarkers, 030217 neurology & neurosurgery, Frontotemporal dementia
Abstract

Introduction Synaptic damage, axonal neurodegeneration, and neuroinflammation are common features in Alzheimer's disease (AD), frontotemporal dementia (FTD), and Creutzfeldt-Jakob disease (CJD). Methods Unicentric cohort of 353 participants included healthy control (HC) subjects, AD continuum stages, genetic AD and FTD, and FTD and CJD. We measured cerebrospinal fluid neurofilament light (NF-L), neurogranin (Ng), 14-3-3, and YKL-40 proteins. Results Biomarkers showed differences in HC subjects versus AD, FTD, and CJD. Disease groups differed between them except AD versus FTD for YKL-40. Only NF-L differed between all stages within the AD continuum. AD and FTD symptomatic mutation carriers presented differences with respect to HC subjects. Applying the AT(N) system, 96% subjects were positive for neurodegeneration if 14-3-3 was used, 94% if NF-L was used, 62% if Ng was used, and 53% if YKL-40 was used. Discussion Biomarkers of synapse and neurodegeneration differentiate HC subjects from neurodegenerative dementias and between AD, FTD, and CJD. NF-L and 14-3-3 performed similar to total tau when AT(N) system was applied.

Published
2020

35. Plasma glial fibrillary acidic protein is raised in progranulin-associated frontotemporal dementia

Author

Heller, Carolin, Foiani, Martha S, Shafei, Rachelle, Miltenberger, Gabriel, Maruta, Carolina, Verdelho, Ana, Afonso, Sónia, Taipa, Ricardo, Caroppo, Paola, Fede, Giuseppe Di, Giaccone, Giorgio, Prioni, Sara, Redaelli, Veronica, Van Swieten, John C, Rossi, Giacomina, Tiraboschi, Pietro, Duro, Diana, Almeida, Maria Rosario, Castelo-Branco, Miguel, Leitão, Maria João, Tabuas-Pereira, Miguel, Santiago, Beatriz, Gauthier, Serge, Rosa-Neto, Pedro, Moreno, Fermin, Veldsman, Michele, Flanagan, Toby, Prix, Catharina, Hoegen, Tobias, Wlasich, Elisabeth, Loosli, Sandra, Schonecker, Sonja, Semler, Elisa, Anderl-Straub, Sarah, Benussi, Luisa, Sanchez-Valle, Raquel, Binetti, Giuliano, Ghidoni, Roberta, Pievani, Michela, Lombardi, Gemma, Nacmias, Benedetta, Ferrari, Camilla, Bessi, Valentina, Borroni, Barbara, Laforce, Robert, Masellis, Mario, Tartaglia, Maria Carmela, Graff, Caroline, Galimberti, Daniela, Moore, Katrina, Rowe, James B, Finger, Elizabeth, Synofzik, Matthis, Vandenberghe, Rik, de Mendonca, Alexandre, Tagliavini, Fabrizio, Santana, Isabel, Ducharme, Simon, Butler, Christopher R, Gerhard, Alex, Convery, Rhian, Levin, Johannes, Danek, Adrian, Frisoni, Giovanni, Sorbi, Sandro, Otto, Markus, Heslegrave, Amanda J, Zetterberg, Henrik, Rohrer, Jonathan D, GENFI, Rossor, Martin N, Bocchetta, Martina, Warren, Jason D, Fox, Nick C, Guerreiro, Rita, Bras, Jose, Nicholas, Jennifer, Mead, Simon, Jiskoot, Lize, Meeter, Lieke, Panman, Jessica, Papma, Janne, Neason, Mollie, Minkelen, Rick van, Pijnenburg, Yolanda, Barandiaran, Myriam, Indakoetxea, Begoña, Gabilondo, Alazne, Tainta, Mikel, Arriba, Maria de, Gorostidi, Ana, Zulaica, Miren, Villanua, Jorge, Cash, David M, Diaz, Zigor, Borrego-Ecija, Sergi, Olives, Jaume, Lladó, Albert, Balasa, Mircea, Antonell, Anna, Bargallo, Nuria, Premi, Enrico, Cosseddu, Maura, Gazzina, Stefano, Thomas, David, Padovani, Alessandro, Gasparotti, Roberto, Archetti, Silvana, Black, Sandra, Mitchell, Sara, Rogaeva, Ekaterina, Freedman, Morris, Keren, Ron, Tang-Wai, David, Öijerstedt, Linn, Greaves, Caroline V, Andersson, Christin, Jelic, Vesna, Thonberg, Hakan, Arighi, Andrea, Fenoglio, Chiara, Scarpini, Elio, Fumagalli, Giorgio, Cope, Thomas, Timberlake, Carolyn, Rittman, Timothy, Woollacott, Ione Oc, Shoesmith, Christen, Bartha, Robart, Rademakers, Rosa, Wilke, Carlo, Karnarth, Hans-Otto, Bender, Benjamin, Bruffaerts, Rose, Vandamme, Philip, Vandenbulcke, Mathieu, Ferreira, Catarina B, Amsterdam Neuroscience - Neurodegeneration, Neurology, Heller, Carolin [0000-0002-1934-6162], Foiani, Martha S [0000-0003-4157-2606], Moore, Katrina [0000-0002-4458-8390], Convery, Rhian [0000-0002-9477-1812], Bocchetta, Martina [0000-0003-1814-5024], Neason, Mollie [0000-0001-9419-7171], Thomas, David [0000-0003-1491-1641], Greaves, Caroline V [0000-0002-6446-1960], Woollacott, Ione Oc [0000-0003-1166-6417], Shafei, Rachelle [0000-0002-4760-8684], Van Swieten, John C [0000-0001-6278-6844], Borroni, Barbara [0000-0001-9340-9814], Rowe, James B [0000-0001-7216-8679], Finger, Elizabeth [0000-0003-4461-7427], Otto, Markus [0000-0002-6647-5944], Rohrer, Jonathan D [0000-0002-6155-8417], Apollo - University of Cambridge Repository, Repositório da Universidade de Lisboa, and Woollacott, Ione OC [0000-0003-1166-6417]

Subjects
blood [Frontotemporal Dementia], Male, blood [Neurofilament Proteins], Gastroenterology, genetics [Progranulins], Progranulins, 0302 clinical medicine, Neurofilament Proteins, C9orf72, blood [Glial Fibrillary Acidic Protein], genetics [Frontotemporal Dementia], 0303 health sciences, blood [Biomarkers], Glial fibrillary acidic protein, biology, Middle Aged, Astrogliosis, Psychiatry and Mental health, Frontotemporal Dementia, Biomarker (medicine), Female, Frontotemporal dementia, Adult, medicine.medical_specialty, genetics [Mutation], tau Proteins, 03 medical and health sciences, Atrophy, Internal medicine, Glial Fibrillary Acidic Protein, medicine, Humans, ddc:610, Neurodegeneration, genetics [C9orf72 Protein], Pathological, Aged, 030304 developmental biology, C9orf72 Protein, business.industry, Case-control study, medicine.disease, genetics [tau Proteins], Case-Control Studies, Mutation, biology.protein, Surgery, Neurology (clinical), business, GENFI, Biomarkers, 030217 neurology & neurosurgery
Abstract

© Author(s) (or their employer(s)). No commercial re-use. See rights and permissions. Published by BMJ., Background: There are few validated fluid biomarkers in frontotemporal dementia (FTD). Glial fibrillary acidic protein (GFAP) is a measure of astrogliosis, a known pathological process of FTD, but has yet to be explored as potential biomarker. Methods: Plasma GFAP and neurofilament light chain (NfL) concentration were measured in 469 individuals enrolled in the Genetic FTD Initiative: 114 C9orf72 expansion carriers (74 presymptomatic, 40 symptomatic), 119 GRN mutation carriers (88 presymptomatic, 31 symptomatic), 53 MAPT mutation carriers (34 presymptomatic, 19 symptomatic) and 183 non-carrier controls. Biomarker measures were compared between groups using linear regression models adjusted for age and sex with family membership included as random effect. Participants underwent standardised clinical assessments including the Mini-Mental State Examination (MMSE), Frontotemporal Lobar Degeneration-Clinical Dementia Rating scale and MRI. Spearman's correlation coefficient was used to investigate the relationship of plasma GFAP to clinical and imaging measures. Results: Plasma GFAP concentration was significantly increased in symptomatic GRN mutation carriers (adjusted mean difference from controls 192.3 pg/mL, 95% CI 126.5 to 445.6), but not in those with C9orf72 expansions (9.0, -61.3 to 54.6), MAPT mutations (12.7, -33.3 to 90.4) or the presymptomatic groups. GFAP concentration was significantly positively correlated with age in both controls and the majority of the disease groups, as well as with NfL concentration. In the presymptomatic period, higher GFAP concentrations were correlated with a lower cognitive score (MMSE) and lower brain volume, while in the symptomatic period, higher concentrations were associated with faster rates of atrophy in the temporal lobe. Conclusions: Raised GFAP concentrations appear to be unique to GRN-related FTD, with levels potentially increasing just prior to symptom onset, suggesting that GFAP may be an important marker of proximity to onset, and helpful for forthcoming therapeutic prevention trials., The GENFI study has been supported by the Medical Research Council UK (MR/M023664/1), the Italian Ministry of Health and the Canadian Institutes of Health Research as part of a Centres of Excellence in Neurodegeneration grant, as well as other individual funding to investigators. This work was supported by the NIHR Queen Square Dementia Biomedical Research Unit, the NIHR UCL/H Biomedical Research Centre and the Leonard Wolfson Experimental Neurology Centre (LWENC) Clinical Research Facility, Alzheimer’s Research UK, the Brain Research Trust and the Wolfson Foundation as well as an Alzheimer's Society grant (AS-PG-16-007). The biomarker measurements were funded in part by the UK Dementia Research Institute at UCL and by a Wellcome Trust Multi-User Equipment Grant. KM has received funding from an Alzheimer’s Society PhD studentship. IOCW is supported by a MRC Clinical Research Training Fellowship (MR/M018288/1). RS-V is supported by an Alzheimer's Research UK Clinical Research Training Fellowship (ARUK-CRF2017B-2). JCVS was supported by the Dioraphte Foundation grant 09-02-03-00, the Association for Frontemporal Dementias Research Grant 2009, The Netherlands Organization for Scientific Research (NWO) grant HCMI 056-13-018, ZonMw Memorabel (Deltaplan Dementie, project number 733 051 042), Alzheimer Nederland and the Bluefield project. CG received funding from JPND-Prefrontals VR Dnr 529-2014-7504, VR 2015-02926 and 2018-02754, the Swedish FTD Initiative-Schörling Foundation, Alzheimer Foundation, Brain Foundation and Stockholm County Council ALF. DG received support from the EU Joint Programme—Neurodegenerative Disease Research (JPND) and the Italian Ministry of Health (PreFrontALS) grant 733051042. RS-V has received funding from Fundació Marató de TV3, Spain (grant no. 20143810). FM received funding from the Tau Consortium and the Center for Networked Biomedical Research on Neurodegenerative Disease (CIBERNED). JBR has received funding from the Wellcome Trust (103838) and the National Institute for Health Research (NIHR) Cambridge Biomedical Research Centre. MO has received funding from BMBF (FTLDc). MM has received funding from a Canadian Institutes of Health Research operating grant and the Weston Brain Institute and Ontario Brain Institute. RV has received funding from the Mady Browaeys Fund for Research into Frontotemporal Dementia. EF has received funding from a CIHR grant #327387. HZ is a Wallenberg Academy Fellow. JR is a MRC Clinician Scientist (MR/M008525/1) and has received funding from the NIHR Rare Diseases Translational Research Collaboration (BRC149/NS/MH), the Bluefield Project and the Association for Frontotemporal Degeneration.

Published
2020

36. Faster Cortical Thinning and Surface Area Loss in Presymptomatic and Symptomatic C9orf72 Repeat Expansion Adult Carriers

Author

Le Blanc, Gabriella, Jetté Pomerleau, Vincent, Graff, Caroline, Rittman, Tim, Rogaeva, Ekaterina, Rosa‐Neto, Pedro, Rossi, Giacomina, Rossor, Martin, Santiago, Beatriz, Scarpini, Elio, Semler, Elisa, Shafei, Rachelle, Shoesmith, Christen, Masellis, Mario, Tábuas‐Pereira, Miguel, Tainta, Mikel, Tang‐Wai, David, Thomas, David L, Thonberg, Hakan, Timberlake, Carolyn, Tiraboschi, Pietro, Vandamme, Philip, Vandenbulcke, Mathieu, Veldsman, Michele, Tartaglia, Maria C., Verdelho, Ana, Villanua, Jorge, Warren, Jason, Wilke, Carlo, Zetterberg, Henrik, Zulaica, Miren, Rowe, James B., Vandenberghe, Rik, Finger, Elizabeth, Tagliavini, Fabrizio, Mendonça, Alexandre, Santana, Isabel, Butler, Chris, McCarthy, Jillian, Gerhard, Alex, Danek, Adrian, Levin, Johannes, Otto, Markus, Frisoni, Giovanni, Sorbi, Sandro, Rohrer, Jonathan D., Ducharme, Simon, Almeida, Maria Rosario, Anderl‐Straub, Sarah, Borroni, Barbara, Andersson, Christin, Antonell, Anna, Arighi, Andrea, Balasa, Mircea, Barandiaran, Myriam, Bargalló, Nuria, Bartha, Robart, Bender, Benjamin, Benussi, Luisa, Binetti, Giuliano, Swieten, John, Black, Sandra, Bocchetta, Martina, Borrego, Sergi, Bras, Jose, Bruffaerts, Rose, Caroppo, Paola, Cash, David, Castelo‐Branco, Miguel, Convery, Rhian, Cope, Thomas, Galimberti, Daniela, Arriba, María, Di Fede, Giuseppe, Díaz, Zigor, Dick, Katrina M, Duro, Diana, Fenoglio, Chiara, Ferreira, Carlos, Ferreira, Catarina B., Flanagan, Toby, Fox, Nick, Sanchez‐Valle, Raquel, Freedman, Morris, Fumagalli, Giorgio, Gabilondo, Alazne, Gauthier, Serge, Ghidoni, Roberta, Giaccone, Giorgio, Gorostidi, Ana, Greaves, Caroline, Guerreiro, Rita, Heller, Carolin, LaForce, Robert, Hoegen, Tobias, Indakoetxea, Begoña, Jelic, Vesna, Jiskoot, Lize, Karnath, Hans‐Otto, Keren, Ron, Leitão, Maria João, Lladó, Albert, Lombardi, Gemma, Loosli, Sandra, Moreno, Fermin, Maruta, Carolina, Mead, Simon, Meeter, Lieke, Miltenberger, Gabriel, Minkelen, Rick, Mitchell, Sara, Nacmias, Benedetta, Neason, Mollie, Nicholas, Jennifer, Öijerstedt, Linn, Synofzik, Matthis, Olives, Jaume, Panman, Jessica, Papma, Janne, Patzig, Maximilian, Pievani, Michela, Pijnenburg, Yolande, Prioni, Sara, Prix, Catharina, Rademakers, Rosa, Redaelli, Veronica, Neurology, Ducharme, Simon [0000-0002-7309-1113], and Apollo - University of Cambridge Repository

Subjects
0301 basic medicine, Adult, Male, medicine.medical_specialty, Adolescent, diagnostic imaging [Frontotemporal Dementia], 03 medical and health sciences, Young Adult, 0302 clinical medicine, Atrophy, C9orf72, Internal medicine, diagnostic imaging [Cerebral Cortex], medicine, Humans, ddc:610, Young adult, genetics [C9orf72 Protein], genetics [Frontotemporal Dementia], Aged, Aged, 80 and over, Cerebral Cortex, DNA Repeat Expansion, medicine.diagnostic_test, C9orf72 Protein, business.industry, Magnetic resonance imaging, diagnostic imaging [Atrophy], Middle Aged, medicine.disease, Magnetic Resonance Imaging, 030104 developmental biology, medicine.anatomical_structure, Neurology, Cerebral cortex, Frontotemporal Dementia, Cardiology, Female, Neurology (clinical), Trinucleotide repeat expansion, business, Asymptomatic carrier, 030217 neurology & neurosurgery, Frontotemporal dementia, genetics [Atrophy]
Abstract

Objective C9orf72 expansion is the most common genetic cause of frontotemporal dementia (FTD). We examined aging trajectories of cortical thickness (CTh) and surface area in C9orf72 expansion adult carriers compared to healthy controls to characterize preclinical cerebral changes leading to symptoms. Methods Data were obtained from the Genetic Frontotemporal Dementia Initiative. T1-weighted magnetic resonance imaging scans were processed with CIVET 2.1 to extract vertex-wide CTh and cortical surface area (CSA). Symptomatic and presymptomatic subjects were compared to age-matched controls using mixed-effects models, controlling for demographic variables. Aging trajectories were compared between carriers and noncarriers by testing the "age by genetic status" interaction. False discovery rate corrections were applied to all vertex-wide analyses. Results The sample included 640 scans from 386 subjects, including 54 symptomatic C9orf72 carriers (72.2% behavioral variant FTD), 83 asymptomatic carriers, and 249 controls (age range = 18-86 years). Symptomatic carriers showed fairly symmetric reduction in CTh/CSA in most of the frontal lobes, in addition to large temporoparietal areas. Presymptomatic subjects had reduced CTh/CSA in more restricted areas of the medial frontoparietal lobes, in addition to scattered lateral frontal, parietal, and temporal areas. These differences were explained by faster cortical thinning linearly throughout adulthood in a similar anatomical distribution, with differences emerging in the early 30s. CSA reduction was also faster in mutation carriers predominantly in the ventrofrontal regions. Interpretation C9orf72 mutation carriers have faster cortical thinning and surface loss throughout adulthood in regions that show atrophy in symptomatic subjects. This suggests that the pathogenic effects of the mutation lead to structural cerebral changes decades prior to symptoms. ANN NEUROL 2020 ANN NEUROL 2020;88:113-122.

Published
2020

37. Network structure and transcriptomic vulnerability shape atrophy in frontotemporal dementia

Author

Shafiei, Golia, Bazinet, Vincent, Dadar, Mahsa, Manera, Ana L., Collins, D. Louis, Dagher, Alain, Borroni, Barbara, Sanchez-Valle, Raquel, Moreno, Fermin, Laforce, Robert, Graff, Caroline, Synofzik, Matthis, Galimberti, Daniela, Rowe, James B., Masellis, Mario, Tartaglia, Maria Carmela, Finger, Elizabeth, Vandenberghe, Rik, de Mendonça, Alexandre, Tagliavini, Fabrizio, Santana, Isabel, Butler, Chris, Gerhard, Alex, Danek, Adrian, Levin, Johannes, Otto, Markus, Sorbi, Sandro, Jiskoot, Lize C., Seelaar, Harro, van Swieten, John C., Rohrer, Jonathan D., Misic, Bratislav, Ducharme, Simon, Rosen, Howard, Dickerson, Bradford C., Domoto-Reilly, Kimoko, Knopman, David, Boeve, Bradley F., Boxer, Adam L., Kornak, John, Miller, Bruce L., Seeley, William W., Gorno-Tempini, Maria-Luisa, McGinnis, Scott, Mandelli, Maria Luisa, Esteve, Aitana Sogorb, Nelson, Annabel, Bouzigues, Arabella, Heller, Carolin, Greaves, Caroline V., Cash, David, Thomas, David L., Todd, Emily, Benotmane, Hanya, Zetterberg, Henrik, Swift, Imogen J., Nicholas, Jennifer, Samra, Kiran, Russell, Lucy L., Bocchetta, Martina, Shafei, Rachelle, Convery, Rhian S., Timberlake, Carolyn, Cope, Thomas, Rittman, Timothy, Benussi, Alberto, Premi, Enrico, Gasparotti, Roberto, Archetti, Silvana, Gazzina, Stefano, Cantoni, Valentina, Arighi, Andrea, Fenoglio, Chiara, Scarpini, Elio, Fumagalli, Giorgio, Borracci, Vittoria, Rossi, Giacomina, Giaccone, Giorgio, Di Fede, Giuseppe, Caroppo, Paola, Tiraboschi, Pietro, Prioni, Sara, Redaelli, Veronica, Tang-Wai, David, Rogaeva, Ekaterina, Castelo-Branco, Miguel, Freedman, Morris, Keren, Ron, Black, Sandra, Mitchell, Sara, Shoesmith, Christen, Bartha, Robart, Rademakers, Rosa, van Der Ende, Emma, Poos, Jackie, Papma, Janne M., Giannini, Lucia, van Minkelen, Rick, Pijnenburg, Yolande, Nacmias, Benedetta, Ferrari, Camilla, Polito, Cristina, Lombardi, Gemma, Bessi, Valentina, Veldsman, Michele, Andersson, Christin, Thonberg, Hakan, Öijerstedt, Linn, Jelic, Vesna, Thompson, Paul, Langheinrich, Tobias, Lladó, Albert, Antonell, Anna, Olives, Jaume, Balasa, Mircea, Bargalló, Nuria, Borrego-Ecija, Sergi, Verdelho, Ana, Maruta, Carolina, Ferreira, Catarina B., Miltenberger, Gabriel, Simões do Couto, Frederico, Gabilondo, Alazne, Gorostidi, Ana, Villanua, Jorge, Cañada, Marta, Tainta, Mikel, Zulaica, Miren, Barandiaran, Myriam, Alves, Patricia, Bender, Benjamin, Wilke, Carlo, Graf, Lisa, Vogels, Annick, Vandenbulcke, Mathieu, Van Damme, Philip, Bruffaerts, Rose, Rosa-Neto, Pedro, Gauthier, Serge, Camuzat, Agnès, Brice, Alexis, Bertrand, Anne, Funkiewiez, Aurélie, Rinaldi, Daisy, Saracino, Dario, Colliot, Olivier, Sayah, Sabrina, Prix, Catharina, Wlasich, Elisabeth, Wagemann, Olivia, Loosli, Sandra, Schönecker, Sonja, Hoegen, Tobias, Lombardi, Jolina, Anderl-Straub, Sarah, Rollin, Adeline, Kuchcinski, Gregory, Bertoux, Maxime, Lebouvier, Thibaud, Deramecourt, Vincent, Santiago, Beatriz, Duro, Diana, Leitão, Maria João, Almeida, Maria Rosario, Tábuas-Pereira, Miguel, Afonso, Sónia, Engel, Annerose, Polyakova, Maryna, Fede, Giuseppe Di, do Couto, Frederico Simões, Shafiei, Golia [0000-0002-2036-5571], Dadar, Mahsa [0000-0003-4008-2672], Collins, D Louis [0000-0002-8432-7021], Dagher, Alain [0000-0002-0945-5779], Sanchez-Valle, Raquel [0000-0001-7750-896X], Graff, Caroline [0000-0002-9949-2951], Synofzik, Matthis [0000-0002-2280-7273], Masellis, Mario [0000-0002-6244-2096], Jiskoot, Lize C [0000-0002-8120-7366], Seelaar, Harro [0000-0003-1989-7527], Misic, Bratislav [0000-0003-0307-2862], Ducharme, Simon [0000-0002-7309-1113], and Apollo - University of Cambridge Repository

Subjects
Aging, connectome, disease epicentre, frontotemporal dementia, gene expression, network spreading, GENetic Frontotemporal dementia Initiative, Medizin, Neurodegenerative, Neuropsychological Tests, Alzheimer's Disease, diagnostic imaging [Frontotemporal Dementia], Medical and Health Sciences, Pick Disease of the Brain, Settore BIO/13 - Biologia Applicata, pathology [Brain], Frontotemporal Lobar Degeneration Neuroimaging Initiative, Acquired Cognitive Impairment, Connectome, 2.1 Biological and endogenous factors, Humans, ddc:610, Aetiology, genetics [Frontotemporal Dementia], pathology [Atrophy], Neurology & Neurosurgery, Psychology and Cognitive Sciences, Neurosciences, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Brain, Magnetic Resonance Imaging, Brain Disorders, Frontotemporal Dementia (FTD), pathology [Pick Disease of the Brain], Neurological, pathology [Frontotemporal Dementia], Dementia, Neurology (clinical), Atrophy, Transcriptome
Abstract

Copyright © The Author(s) 2022. Connections among brain regions allow pathological perturbations to spread from a single source region to multiple regions. Patterns of neurodegeneration in multiple diseases, including behavioural variant of frontotemporal dementia (bvFTD), resemble the large-scale functional systems, but how bvFTD-related atrophy patterns relate to structural network organization remains unknown. Here we investigate whether neurodegeneration patterns in sporadic and genetic bvFTD are conditioned by connectome architecture. Regional atrophy patterns were estimated in both genetic bvFTD (75 patients, 247 controls) and sporadic bvFTD (70 patients, 123 controls). First, we identified distributed atrophy patterns in bvFTD, mainly targeting areas associated with the limbic intrinsic network and insular cytoarchitectonic class. Regional atrophy was significantly correlated with atrophy of structurally- and functionally-connected neighbours, demonstrating that network structure shapes atrophy patterns. The anterior insula was identified as the predominant group epicentre of brain atrophy using data-driven and simulation-based methods, with some secondary regions in frontal ventromedial and antero-medial temporal areas. We found that FTD-related genes, namely C9orf72 and TARDBP, confer local transcriptomic vulnerability to the disease, modulating the propagation of pathology through the connectome. Collectively, our results demonstrate that atrophy patterns in sporadic and genetic bvFTD are jointly shaped by global connectome architecture and local transcriptomic vulnerability, providing an explanation as to how heterogenous pathological entities can lead to the same clinical syndrome. Canada First Research Excellence Fund, awarded to McGill University for the Healthy Brains for Healthy Lives initiative. B.M. acknowledges support from the Natural Sciences and Engineering Research Council of Canada (NSERC Discovery Grant RGPIN #017-04265) and from the Canada Research Chairs Program. S.D. receives salary support from the Fonds de Recherche du Québec—Santé (FRQS). G.S. acknowledges support from the Natural Sciences and Engineering Research Council of Canada (NSERC) and the Fonds de recherche du Québec—Nature et Technologies (FRQNT). V.B. acknowledges support from the Fonds de recherche du Québec—Nature et Technologies (FRQNT). FTLDNI data collection and sharing was funded by the Frontotemporal Lobar Degeneration Neuroimaging Initiative (National Institutes of Health Grant R01 AG032306) and is coordinated through the University of California, San Francisco, Memory and Aging Center. FTLDNI data are disseminated by the Laboratory for Neuro Imaging at the University of Southern California.

Published
2022

38. Conceptual framework for the definition of preclinical and prodromal frontotemporal dementia

Author

Benussi, Alberto, Alberici, Antonella, Jiskoot, Lize C, Olives, Jaume, Otto, Markus, Ourselin, Sebastien, Panman, Jessica, Papma, Janne M, Pasquier, Florence, Pijnenburg, Yolande, Polito, Cristina, Premi, Enrico, Prioni, Sara, Le Ber, Isabelle, Prix, Catharina, Rademakers, Rosa, Redaelli, Veronica, Rinaldi, Daisy, Rittman, Tim, Rogaeva, Ekaterina, Rollin, Adeline, Rosa-Neto, Pedro, Rossi, Giacomina, Rossor, Martin, Masellis, Mario, Santana, Isabel, Santiago, Beatriz, Saracino, Dario, Sayah, Sabrina, Scarpini, Elio, Schönecker, Sonja, Schroeter, Matthias, Shafei, Rachelle, Shoesmith, Christen, Sorbi, Sandro, Nacmias, Benedetta, Swift, Imogen, Tábuas-Pereira, Miguel, Tagliavini, Fabrizio, Tainta, Mikel, Taipa, Ricardo, Tang-Wai, David, Tartaglia, Carmela, Thomas, David L, Thompson, Paul, Rowe, James B, Thonberg, Hakan, Timberlake, Carolyn, Tiraboschi, Pietro, Todd, Emily, Van Damme, Philip, Vandenberghe, Rik, Vandenbulcke, Mathieu, van Swieten, John C, Veldsman, Michele, Verdelho, Ana, Sanchez-Valle, Raquel, Villanua, Jorge, Warren, Jason, Wilke, Carlo, Woollacott, Ione, Wlasich, Elisabeth, Zetterberg, Henrik, Zulaica, Miren, Seelaar, Harro, Synofzik, Matthis, Consortium, GENFI, Rohrer, Jonathan D, Samra, Kiran, Borroni, Barbara, Afonso, Sónia, Almeida, Maria Rosario, Anderl-Straub, Sarah, Andersson, Christin, Antonell, Anna, Archetti, Silvana, Arighi, Andrea, Balasa, Mircea, Barandiaran, Myriam, Russell, Lucy L, Bargalló, Nuria, Bartha, Robart, Bender, Benjamin, Bertoux, Maxime, Bertrand, Anne, Bessi, Valentina, Black, Sandra, Borrego-Ecija, Sergi, Bouzigues, Arabella, Bras, Jose, Greaves, Caroline V, Brice, Alexis, Bruffaerts, Rose, Butler, Chris R, Camuzat, Agnès, Cañada, Marta, Cantoni, Valentina, Caroppo, Paola, Cash, David, Castelo-Branco, Miguel, Colliot, Olivier, Bocchetta, Martina, Convery, Rhian, Cope, Thomas, Danek, Adrian, de Mendonça, Alexandre, Deramecourt, Vincent, Di Fede, Giuseppe, Díez, Alina, Duro, Diana, Fenoglio, Chiara, Ferrari, Camilla, Ducharme, Simon, Ferreira, Catarina B, Fox, Nick, Freedman, Morris, Funkiewiez, Aurélie, Gabilondo, Alazne, Gauthier, Serge, Gazzina, Stefano, Gerhard, Alexander, Giaccone, Giorgio, Gorostidi, Ana, Finger, Elizabeth, Graff, Caroline, Guerreiro, Rita, Heller, Carolin, Hoegen, Tobias, Indakoetxea, Begoña, Jelic, Vesna, Karnath, Hans Otto, Keren, Ron, Kuchcinski, Gregory, Laforce, Robert, Fumagalli, Giorgio, Waldo, Maria Landqvist, Langheinrich, Tobias, Lebouvier, Thibaud, Leitão, Maria João, Levin, Johannes, Lladó, Albert, Lombardi, Gemma, Lombardi, Jolina, Loosli, Sandra, Maruta, Carolina, Galimberti, Daniela, Mead, Simon, Meeter, Lieke, Miltenberger, Gabriel, van Minkelen, Rick, Mitchell, Sara, Moore, Katrina, Moreno, Fermin, Nelson, Annabel, Nicholas, Jennifer, Öijerstedt, Linn, Erasmus MC other, Neurology, Clinical Genetics, Clinical Psychology, Rowe, James [0000-0001-7216-8679], Apollo - University of Cambridge Repository, and GENFI Consortium

Subjects
Epidemiology, Health Policy, prodromal, Prodromal Symptoms, frontotemporal dementia, Psychiatry and Mental health, Cellular and Molecular Neuroscience, presymptomatic, diagnosis [Frontotemporal Dementia], mild cognitive impairment, Developmental Neuroscience, SDG 3 - Good Health and Well-being, frontotemporal lobar degeneration, mental disorders, preclinical, Humans, definition, Neurology (clinical), ddc:610, Geriatrics and Gerontology, mild cognitive and/or behavioral and/or motor impairment, genetics [Frontotemporal Dementia]
Abstract

Funder: EU Joint Programme – Neurodegenerative Disease Research; Id: http://dx.doi.org/10.13039/100013278, Funder: UK Dementia Research Institute; Id: http://dx.doi.org/10.13039/501100017510, The presymptomatic stages of frontotemporal dementia (FTD) are still poorly defined and encompass a long accrual of progressive biological (preclinical) and then clinical (prodromal) changes, antedating the onset of dementia. The heterogeneity of clinical presentations and the different neuropathological phenotypes have prevented a prior clear description of either preclinical or prodromal FTD. Recent advances in therapeutic approaches, at least in monogenic disease, demand a proper definition of these predementia stages. It has become clear that a consensus lexicon is needed to comprehensively describe the stages that anticipate dementia. The goal of the present work is to review existing literature on the preclinical and prodromal phases of FTD, providing recommendations to address the unmet questions, therefore laying out a strategy for operationalizing and better characterizing these presymptomatic disease stages.

Published
2022
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39. CSF glial markers are elevated in a subset of patients with genetic frontotemporal dementia

Author

Woollacott, Ione O C, Swift, Imogen J, Heslegrave, Amanda, Bargalló, Nuria, Borrego-Ecija, Sergi, Verdelho, Ana, Maruta, Carolina, Ferreira, Catarina B, Miltenberger, Gabriel, do Couto, Frederico Simões, Gabilondo, Alazne, Gorostidi, Ana, Villanua, Jorge, Rowe, James B, Cañada, Marta, Tainta, Mikel, Zulaica, Miren, Barandiaran, Myriam, Alves, Patricia, Bender, Benjamin, Wilke, Carlo, Graf, Lisa, Vogels, Annick, Vandenbulcke, Mathieu, Borroni, Barbara, Van Damme, Philip, Bruffaerts, Rose, Poesen, Koen, Rosa-Neto, Pedro, Gauthier, Serge, Camuzat, Agnès, Brice, Alexis, Bertrand, Anne, Funkiewiez, Aurélie, Rinaldi, Daisy, Galimberti, Daniela, Saracino, Dario, Colliot, Olivier, Sayah, Sabrina, Prix, Catharina, Wlasich, Elisabeth, Wagemann, Olivia, Loosli, Sandra, Schönecker, Sonja, Hoegen, Tobias, Lombardi, Jolina, Tiraboschi, Pietro, Anderl-Straub, Sarah, Rollin, Adeline, Kuchcinski, Gregory, Bertoux, Maxime, Lebouvier, Thibaud, Deramecourt, Vincent, Santiago, Beatriz, Duro, Diana, Leitão, Maria João, Almeida, Maria Rosario, Masellis, Mario, Tábuas-Pereira, Miguel, Afonso, Sónia, Tartaglia, Maria Carmela, Finger, Elizabeth, van Swieten, John C, Seelaar, Harro, Sogorb-Esteve, Aitana, Jiskoot, Lize, Sorbi, Sandro, Butler, Chris R, Graff, Caroline, Gerhard, Alexander, Laforce, Robert, Sanchez-Valle, Raquel, de Mendonça, Alexandre, Moreno, Fermin, Synofzik, Matthis, Heller, Carolin, Vandenberghe, Rik, Ducharme, Simon, Ber, Isabelle Le, Levin, Johannes, Otto, Markus, Pasquier, Florence, Santana, Isabel, Zetterberg, Henrik, Rohrer, Jonathan D, Genetic FTD Initiative, GENFI, Knowles, Kathryn, Nelson, Annabel, Bocchetta, Martina, Cash, David, Thomas, David L, Todd, Emily, Benotmane, Hanya, Nicholas, Jennifer, Samra, Kiran, Shafei, Rachelle, Timberlake, Carolyn, Bouzigues, Arabella, Cope, Thomas, Rittman, Timothy, Benussi, Alberto, Premi, Enrico, Gasparotti, Roberto, Archetti, Silvana, Gazzina, Stefano, Cantoni, Valentina, Arighi, Andrea, Fenoglio, Chiara, Russell, Lucy L, Scarpini, Elio, Fumagalli, Giorgio, Borracci, Vittoria, Rossi, Giacomina, Giaccone, Giorgio, Di Fede, Giuseppe, Caroppo, Paola, Prioni, Sara, Redaelli, Veronica, Tang-Wai, David, Peakman, Georgia, Rogaeva, Ekaterina, Castelo-Branco, Miguel, Freedman, Morris, Keren, Ron, Black, Sandra, Mitchell, Sara, Shoesmith, Christen, Bartha, Robart, Rademakers, Rosa, Poos, Jackie, Greaves, Caroline V, Papma, Janne M, Giannini, Lucia, van Minkelen, Rick, Pijnenburg, Yolande, Nacmias, Benedetta, Ferrari, Camilla, Polito, Cristina, Lombardi, Gemma, Bessi, Valentina, Veldsman, Michele, Convery, Rhian, Andersson, Christin, Thonberg, Hakan, Öijerstedt, Linn, Jelic, Vesna, Thompson, Paul, Langheinrich, Tobias, Lladó, Albert, Antonell, Anna, Olives, Jaume, Balasa, Mircea, Genetic FTD Initiative, GENFI, Russell, Lucy L [0000-0001-5023-5893], Borroni, Barbara [0000-0001-9340-9814], Galimberti, Daniela [0000-0002-9284-5953], Tiraboschi, Pietro [0000-0002-2171-1720], Tartaglia, Maria Carmela [0000-0002-5944-8497], Finger, Elizabeth [0000-0003-4461-7427], Laforce, Robert [0000-0002-2031-490X], Sanchez-Valle, Raquel [0000-0001-7750-896X], Synofzik, Matthis [0000-0002-2280-7273], Ducharme, Simon [0000-0002-7309-1113], Otto, Markus [0000-0003-4273-4267], Rohrer, Jonathan D [0000-0002-6155-8417], Apollo - University of Cambridge Repository, Repositório da Universidade de Lisboa, Neurology, Clinical Genetics, and Amsterdam Neuroscience - Neurodegeneration

Subjects
C9orf72 Protein, General Neuroscience, Medizin, diagnosis [Frontotemporal Dementia], cerebrospinal fluid [Biomarkers], Pick Disease of the Brain, Settore BIO/13 - Biologia Applicata, Frontotemporal Dementia, genetics [Chitinase-3-Like Protein 1], Humans, ddc:610, Chitinase-3-Like Protein 1, Human medicine, Neurology (clinical), genetics [C9orf72 Protein], Neuroglia, Biomarkers
Abstract

Funder: Alzheimer's Research UK, Funder: Brain Research UK; Id: http://dx.doi.org/10.13039/100013790, Funder: The Wolfson Foundation; Id: http://dx.doi.org/10.13039/501100001320, Funder: Leonard Wolfson Experimental Neurology Centre (LWENC) Clinical Research Facility, Funder: UK Dementia Research Institute; Id: http://dx.doi.org/10.13039/501100017510, Funder: UK DRI Ltd; Id: http://dx.doi.org/10.13039/501100017510, Funder: MRC UK GENFI, Funder: Bluefield Project, Funder: Dioraphte Foundation; Id: http://dx.doi.org/10.13039/501100010573, Funder: Weston Brain Institute; Id: http://dx.doi.org/10.13039/100012479, Funder: Ontario Brain Institute; Id: http://dx.doi.org/10.13039/100008914, Funder: Cambridge University Centre for Frontotemporal Dementia, Funder: EU Joint Programme – Neurodegenerative Disease Research; Id: http://dx.doi.org/10.13039/100013278, Funder: the Olav Thon Foundation; Id: http://dx.doi.org/10.13039/501100021720, Funder: Erling‐Persson Family Foundation; Id: http://dx.doi.org/10.13039/100007436, Funder: Stiftelsen för Gamla Tjänarinnor; Id: http://dx.doi.org/10.13039/100010815, Funder: Deutsche Forschungsgemeinschaft; Id: http://dx.doi.org/10.13039/501100001659, BACKGROUND: Neuroinflammation has been shown to be an important pathophysiological disease mechanism in frontotemporal dementia (FTD). This includes activation of microglia, a process that can be measured in life through assaying different glia-derived biomarkers in cerebrospinal fluid. However, only a few studies so far have taken place in FTD, and even fewer focusing on the genetic forms of FTD. METHODS: We investigated the cerebrospinal fluid concentrations of TREM2, YKL-40 and chitotriosidase using immunoassays in 183 participants from the Genetic FTD Initiative (GENFI) study: 49 C9orf72 (36 presymptomatic, 13 symptomatic), 49 GRN (37 presymptomatic, 12 symptomatic) and 23 MAPT (16 presymptomatic, 7 symptomatic) mutation carriers and 62 mutation-negative controls. Concentrations were compared between groups using a linear regression model adjusting for age and sex, with 95% bias-corrected bootstrapped confidence intervals. Concentrations in each group were correlated with the Mini-Mental State Examination (MMSE) score using non-parametric partial correlations adjusting for age. Age-adjusted z-scores were also created for the concentration of markers in each participant, investigating how many had a value above the 95th percentile of controls. RESULTS: Only chitotriosidase in symptomatic GRN mutation carriers had a concentration significantly higher than controls. No group had higher TREM2 or YKL-40 concentrations than controls after adjusting for age and sex. There was a significant negative correlation of chitotriosidase concentration with MMSE in presymptomatic GRN mutation carriers. In the symptomatic groups, for TREM2 31% of C9orf72, 25% of GRN, and 14% of MAPT mutation carriers had a concentration above the 95th percentile of controls. For YKL-40 this was 8% C9orf72, 8% GRN and 0% MAPT mutation carriers, whilst for chitotriosidase it was 23% C9orf72, 50% GRN, and 29% MAPT mutation carriers. CONCLUSIONS: Although chitotriosidase concentrations in GRN mutation carriers were the only significantly raised glia-derived biomarker as a group, a subset of mutation carriers in all three groups, particularly for chitotriosidase and TREM2, had elevated concentrations. Further work is required to understand the variability in concentrations and the extent of neuroinflammation across the genetic forms of FTD. However, the current findings suggest limited utility of these measures in forthcoming trials.

Published
2022

40. Structural brain splitting is a hallmark of Granulin-related frontotemporal dementia

Author

Gazzina, Stefano, Grassi, Mario, Peakman, Georgia, Meeter, Lieke, Miltenberger, Gabriel, van Minkelen, Rick, Mitchell, Sara, Moore, Katrina, Nacmias, Benedetta, Nelson, Annabel, Nicholas, Jennifer, Öijerstedt, Linn, Olives, Jaume, Convery, Rhian S, Ourselin, Sebastien, Panman, Jessica, Papma, Janne M, Pijnenburg, Yolande, Polito, Cristina, Prioni, Sara, Prix, Catharina, Rademakers, Rosa, Redaelli, Veronica, Rinaldi, Daisy, van Swieten, John C, Rittman, Tim, Rogaeva, Ekaterina, Rollin, Adeline, Rosa-Neto, Pedro, Rossi, Giacomina, Rossor, Martin, Santiago, Beatriz, Saracino, Dario, Sayah, Sabrina, Scarpini, Elio, Jiskoot, Lize C, Schönecker, Sonja, Shafei, Rachelle, Shoesmith, Christen, Swift, Imogen, Tábuas-Pereira, Miguel, Tainta, Mikel, Taipa, Ricardo, Tang-Wai, David, Thomas, David L, Thompson, Paul, Seelaar, Harro, Thonberg, Hakan, Timberlake, Carolyn, Tiraboschi, Pietro, Van Damme, Philip, Vandenbulcke, Mathieu, Veldsman, Michele, Verdelho, Ana, Villanua, Jorge, Warren, Jason, Wilke, Carlo, Sanchez-Valle, Raquel, Woollacott, Ione, Wlasich, Elisabeth, Zetterberg, Henrik, Zulaica, Miren, Moreno, Fermin, Laforce, Robert, Graff, Caroline, Synofzik, Matthis, Premi, Enrico, Galimberti, Daniela, Rowe, James B, Masellis, Mario, Tartaglia, Maria Carmela, Finger, Elizabeth, Vandenberghe, Rik, de Mendonça, Alexandre, Tagliavini, Fabrizio, Butler, Chris R, Santana, Isabel, Alberici, Antonella, Gerhard, Alexander, Ber, Isabelle Le, Pasquier, Florence, Ducharme, Simon, Levin, Johannes, Danek, Adrian, Sorbi, Sandro, Otto, Markus, Rohrer, Jonathan D, Borroni, Barbara, Benussi, Alberto, Initiative, Genetic Frontotemporal dementia, Afonso, Sónia, Almeida, Maria Rosario, Andersson, Christin, Antonell, Anna, Arighi, Andrea, Balasa, Mircea, Barandiaran, Myriam, Bargalló, Nuria, Bartha, Robart, Archetti, Silvana, Bender, Benjamin, Bertoux, Maxime, Bertrand, Anne, Bessi, Valentina, Black, Sandra, Borrego-Ecija, Sergi, Bouzigues, Arabella, Bras, Jose, Brice, Alexis, Bruffaerts, Rose, Gasparotti, Roberto, Camuzat, Agnès, Cañada, Marta, Cantoni, Valentina, Caroppo, Paola, Castelo-Branco, Miguel, Colliot, Olivier, Cope, Thomas, Deramecourt, Vincent, Fede, Giuseppe Di, Díez, Alina, Bocchetta, Martina, Duro, Diana, Fenoglio, Chiara, Ferrari, Camilla, Ferreira, Catarina B, Fox, Nick, Freedman, Morris, Fumagalli, Giorgio, Funkiewiez, Aurélie, Gabilondo, Alazne, Gauthier, Serge, Cash, David M, Giaccone, Giorgio, Gorostidi, Ana, Greaves, Caroline, Guerreiro, Rita, Heller, Carolin, Hoegen, Tobias, Indakoetxea, Begoña, Jelic, Vesna, Karnath, Hans Otto, Keren, Ron, Todd, Emily G, Kuchcinski, Gregory, Langheinrich, Tobias, Lebouvier, Thibaud, Leitão, Maria João, Lladó, Albert, Lombardi, Gemma, Lombardi, Jolina, Loosli, Sandra, Maruta, Carolina, Mead, Simon, Repositório da Universidade de Lisboa, Neurology, Clinical Genetics, Amsterdam Neuroscience - Neurodegeneration, Rowe, James [0000-0001-7216-8679], and Apollo - University of Cambridge Repository

Subjects
Aging, Progranulin, genetics [Granulins], Medizin, Granulin, Pick Disease of the Brain, pathology [Brain], Humans, ddc:610, diagnostic imaging [Brain], genetics [Frontotemporal Dementia], Granulins, pathology [Atrophy], General Neuroscience, Brain, Frontotemporal dementia, Graph theory, Mutation, Structural MRI, Magnetic Resonance Imaging, pathology [Pick Disease of the Brain], pathology [Frontotemporal Dementia], Neurology (clinical), Geriatrics and Gerontology, Atrophy, Developmental Biology
Abstract

© 2022 Elsevier Inc. All rights reserved., Frontotemporal dementia associated with granulin (GRN) mutations presents asymmetric brain atrophy. We applied a Minimum Spanning Tree plus an Efficiency Cost Optimization approach to cortical thickness data in order to test whether graph theory measures could identify global or local impairment of connectivity in the presymptomatic phase of pathology, where other techniques failed in demonstrating changes. We included 52 symptomatic GRN mutation carriers (SC), 161 presymptomatic GRN mutation carriers (PSC) and 341 non-carriers relatives from the Genetic Frontotemporal dementia research Initiative cohort. Group differences of global, nodal and edge connectivity in (Minimum Spanning Tree plus an Efficiency Cost Optimization) graph were tested via Structural Equation Models. Global graph perturbation was selectively impaired in SC compared to non-carriers, with no changes in PSC. At the local level, only SC exhibited perturbation of frontotemporal nodes, but edge connectivity revealed a characteristic pattern of interhemispheric disconnection, involving homologous parietal regions, in PSC. Our results suggest that GRN-related frontotemporal dementia resembles a disconnection syndrome, with interhemispheric disconnection between parietal regions in presymptomatic phases that progresses to frontotemporal areas as symptoms emerge.

Published
2022

41. Comparison of clinical rating scales in genetic frontotemporal dementia within the GENFI cohort

Author

Peakman, Georgia, Russell, Lucy L., Convery, Rhian S., Nicholas, Jennifer M., van Swieten, John C., Jiskoot, Lize C., Moreno, Fermin, Sanchez-Valle, Raquel, Laforce, Robert, Graff, Caroline, Masellis, Mario, Tartaglia, Maria Carmela, Rowe, James B., Borroni, Barbara, Finger, Elizabeth, Synofzik, Matthis, Galimberti, Daniela, Vandenberghe, Rik, de Mendonça, Alexandre, Butler, Chris R., Gerhard, Alex, Ducharme, Simon, Le Ber, Isabelle, Tagliavini, Fabrizio, Santana, Isabel, Pasquier, Florence, Levin, Johannes, Danek, Adrian, Otto, Markus, Sorbi, Sandro, Rohrer, Jonathan D., Afonso, Sónia, Almeida, Maria Rosario, Anderl-Straub, Sarah, Andersson, Christin, Antonell, Anna, Archetti, Silvana, Arighi, Andrea, Balasa, Mircea, Barandiaran, Myriam, Bargalló, Nuria, Bartha, Robart, Bender, Benjamin, Benussi, Alberto, Bertoux, Maxime, Bertrand, Anne, Bessi, Valentina, Black, Sandra, Bocchetta, Martina, Borrego-Ecija, Sergi, Bras, Jose, Brice, Alexis, Bruffaerts, Rose, Camuzat, Agnès, Cañada, Marta, Cantoni, Valentina, Caroppo, Paola, Cash, David, Castelo-Branco, Miguel, Colliot, Olivier, Cope, Thomas, Deramecourt, Vincent, de Arriba, María, Di Fede, Giuseppe, Díez, Alina, Duro, Diana, Fenoglio, Chiara, Ferrari, Camilla, Ferreira, Catarina B., Fox, Nick, Freedman, Morris, Fumagalli, Giorgio, Funkiewiez, Aurélie, Gabilondo, Alazne, Gasparotti, Roberto, Gauthier, Serge, Gazzina, Stefano, Giaccone, Giorgio, Gorostidi, Ana, Greaves, Caroline, Guerreiro, Rita, Heller, Carolin, Hoegen, Tobias, Indakoetxea, Begoña, Jelic, Vesna, Karnath, Hans-Otto, Keren, Ron, Kuchcinski, Gregory, Langheinrich, Tobias, Lebouvier, Thibaud, Leitão, Maria João, Lladó, Albert, Lombardi, Gemma, Loosli, Sandra, Maruta, Carolina, Mead, Simon, Meeter, Lieke, Miltenberger, Gabriel, van Minkelen, Rick, Mitchell, Sara, Moore, Katrina, Nacmias, Benedetta, Nelson, Annabel, Öijerstedt, Linn, Olives, Jaume, Ourselin, Sebastien, Padovani, Alessandro, Panman, Jessica, Papma, Janne M., Pijnenburg, Yolande, Polito, Cristina, Premi, Enrico, Prioni, Sara, Prix, Catharina, Rademakers, Rosa, Redaelli, Veronica, Rinaldi, Daisy, Rittman, Tim, Rogaeva, Ekaterina, Rollin, Adeline, Rosa-Neto, Pedro, Rossi, Giacomina, Rossor, Martin, Santiago, Beatriz, Saracino, Dario, Sayah, Sabrina, Scarpini, Elio, Schönecker, Sonja, Seelaar, Harro, Semler, Elisa, Shafei, Rachelle, Shoesmith, Christen, Swift, Imogen, Tábuas-Pereira, Miguel, Tainta, Mikel, Taipa, Ricardo, Tang-Wai, David, Thomas, David L., Thompson, Paul, Thonberg, Hakan, Timberlake, Carolyn, Tiraboschi, Pietro, Todd, Emily, van Damme, Philip, Vandenbulcke, Mathieu, Veldsman, Michele, Verdelho, Ana, Villanua, Jorge, Warren, Jason, Wilke, Carlo, Woollacott, Ione, Wlasich, Elisabeth, Zetterberg, Henrik, Zulaica, Miren, Neurology, Amsterdam Neuroscience - Neurodegeneration, University College of London [London] (UCL), London School of Hygiene and Tropical Medicine (LSHTM), Erasmus University Medical Center [Rotterdam] (Erasmus MC), Donostia International Physics Center - DIPC (SPAIN), Donostia International Physics Center (DIPC), University of the Basque Country/Euskal Herriko Unibertsitatea (UPV/EHU)-University of the Basque Country/Euskal Herriko Unibertsitatea (UPV/EHU), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona (UB), Centre Hospitalier Université Laval [Quebec] (CHUL), CHU de Québec–Université Laval, Université Laval [Québec] (ULaval)-Université Laval [Québec] (ULaval), Karolinska Institutet [Stockholm], University of Toronto, University of Cambridge [UK] (CAM), University of Brescia, University of Western Ontario (UWO), Universitätsklinikum Tübingen - University Hospital of Tübingen, Eberhard Karls Universität Tübingen = Eberhard Karls University of Tuebingen, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Catholic University of Leuven - Katholieke Universiteit Leuven (KU Leuven), Lusófona University [Lisbon], University of Oxford, University of Manchester [Manchester], McGill University = Université McGill [Montréal, Canada], Institut du Cerveau = Paris Brain Institute (ICM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de la Mémoire et de la Maladie d'Alzheimer [CHU Pitié-Salpétriêre] (IM2A), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de Neurologie [CHU Pitié-Salpêtrière], IFR70-CHU Pitié-Salpêtrière [AP-HP], Fondazione IRCCS Istituto Neurologico 'Carlo Besta', University of Coimbra [Portugal] (UC), Lille Neurosciences & Cognition - U 1172 (LilNCog), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Ludwig-Maximilians-Universität München (LMU), University of Ulm (UUlm), Università degli Studi di Firenze = University of Florence (UniFI), HAL-SU, Gestionnaire, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), University of Oxford [Oxford], Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute (ICM), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de la Mémoire et de la Maladie d'Alzheimer [Paris] (IM2A), Sorbonne Université (SU), Lille Neurosciences & Cognition - U 1172 (LilNCog (ex-JPARC)), Università degli Studi di Firenze = University of Florence [Firenze] (UNIFI), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Peakman, Georgia [0000-0002-3319-138X], Convery, Rhian S [0000-0002-9477-1812], Van Swieten, John C [0000-0001-6278-6844], Jiskoot, Lize C [0000-0002-1120-1858], Rowe, James B [0000-0001-7216-8679], Borroni, Barbara [0000-0001-9340-9814], Finger, Elizabeth [0000-0003-4461-7427], Galimberti, Daniela [0000-0002-9284-5953], Gerhard, Alex [0000-0002-8071-6062], Ducharme, Simon [0000-0002-7309-1113], Le Ber, Isabelle [0000-0002-2508-5181], Danek, Adrian [0000-0001-8857-5383], Otto, Markus [0000-0002-6647-5944], Sorbi, Sandro [0000-0002-0380-6670], Rohrer, Jonathan D [0000-0002-6155-8417], Apollo - University of Cambridge Repository, and Genetic FTD Initiative (GENFI)

Subjects
Oncology, Medizin, LANGUAGE, Disease, Genetic FTD Initiative (GENFI), Cohort Studies, 0302 clinical medicine, diagnosis [Frontotemporal Dementia], ddc:150, C9orf72, CRITERIA, 030212 general & internal medicine, frontotemporal dementia, C9orf72 Protein, Cross-Sectional Studies, Disease Progression, Frontotemporal Dementia, Humans, Mutation, tau Proteins, Mental Status and Dementia Tests, VERSION, 11 Medical and Health Sciences, Psychiatry, UTILITY, DDC 150 / Psychology, biology, FTD, 17 Psychology and Cognitive Sciences, Psychiatry and Mental health, Mutation (genetic algorithm), Cohort, [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], medicine.symptom, FTLD, Life Sciences & Biomedicine, Alzheimer’s disease, Frontotemporal dementia, medicine.medical_specialty, Clinical Dementia Rating, Tau protein, Clinical Neurology, Alzheimerkrankheit, [SDV.GEN.GH] Life Sciences [q-bio]/Genetics/Human genetics, DIAGNOSIS, Asymptomatic, VALIDATION, 03 medical and health sciences, SDG 3 - Good Health and Well-being, Internal medicine, mental disorders, medicine, ddc:610, [SDV.NEU] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], Neurodegeneration, Science & Technology, Neurology & Neurosurgery, [SDV.GEN.GPO]Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE], business.industry, MUTATIONS, medicine.disease, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, biology.protein, [SDV.GEN.GPO] Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE], Surgery, Neurology (clinical), Neurosciences & Neurology, business, 030217 neurology & neurosurgery
Abstract

BackgroundTherapeutic trials are now underway in genetic forms of frontotemporal dementia (FTD) but clinical outcome measures are limited. The two most commonly used measures, the Clinical Dementia Rating (CDR)+National Alzheimer’s Disease Coordinating Center (NACC) Frontotemporal Lobar Degeneration (FTLD) and the FTD Rating Scale (FRS), have yet to be compared in detail in the genetic forms of FTD.MethodsThe CDR+NACC FTLD and FRS were assessed cross-sectionally in 725 consecutively recruited participants from the Genetic FTD Initiative: 457 mutation carriers (77 microtubule-associated protein tau (MAPT), 187 GRN, 193 C9orf72) and 268 family members without mutations (non-carrier control group). 231 mutation carriers (51 MAPT, 92 GRN, 88 C9orf72) and 145 non-carriers had available longitudinal data at a follow-up time point.ResultsCross-sectionally, the mean FRS score was lower in all genetic groups compared with controls: GRN mutation carriers mean 83.4 (SD 27.0), MAPT mutation carriers 78.2 (28.8), C9orf72 mutation carriers 71.0 (34.0), controls 96.2 (7.7), p, publishedVersion

Published
2022

42. Awareness of Diagnosis in Persons with Early-Stage Alzheimer's Disease: An Observational Study in Spain

Author

Alberto Villarejo-Galende, Elena García-Arcelay, Gerard Piñol-Ripoll, Antonio del Olmo-Rodríguez, Félix Viñuela, Mercè Boada, Emilio Franco-Macías, Almudena Ibañez de la Peña, Mario Riverol, Albert Puig-Pijoan, Pedro Abizanda-Soler, Rafael Arroyo, Miquel Baquero-Toledo, Inmaculada Feria-Vilar, Mircea Balasa, Ángel Berbel, Eloy Rodríguez-Rodríguez, Alba Vieira-Campos, Guillermo García-Ribas, Silvia Rodrigo-Herrero, Albert Lleó, Jorge Maurino, Roche, Centro Investigación Biomédica en Red Enfermedades Neurodegenerativas (España), European Commission, European Federation of Pharmaceutical Industries and Associations, Instituto de Salud Carlos III, Grifols, and Fundación 'la Caixa'

Subjects
Quality of life, Neurology, Well-being, Diagnosis, Neurology (clinical), Alzheimer's disease, Awareness, Illness representation, Alzheimer’s disease
Abstract

[Introduction] Limited information is available on people’s experiences of living with Alzheimer’s disease (AD) at earlier stages. This study assessed awareness of diagnosis among people with early-stage AD and its impact on different person-centered outcome measures., [Methods] We conducted an observational, cross-sectional study in 21 memory clinics in Spain. Persons aged 50–90 years, diagnosed with prodromal or mild AD (NIA/AA criteria), a Mini Mental State Examination (MMSE) score ≥ 22, and a Clinical Dementia Rating-Global score (CDR-GS) of 0.5 or 1.0 were recruited. The Representations and Adjustment to Dementia Index (RADIX) was used to assess participants’ beliefs about their condition and its consequences., [Results] A total of 149 persons with early-stage AD were studied. Mean (SD) age was 72.3 (7.0) years and 50.3% were female. Mean duration of AD was 1.4 (1.8) years. Mean MMSE score was 24.6 (2.1) and 87.2% had a CDR-GS score of 0.5. Most participants (n = 84, 57.5%) used a descriptive term related to specific AD symptoms (e.g., memory difficulties) when asked what they called their condition. Participants aware of their diagnosis using the term AD (n = 66, 45.2%) were younger, had more depressive symptoms, and poorer life satisfaction and quality of life compared to those without awareness of their specific diagnosis. Practical and emotional consequences RADIX scores showed a significant negative correlation with Quality of Life in Alzheimer’s Disease score (rho = − 0.389 and − 0.413, respectively; p, [Conclusions] Awareness of diagnosis was a common phenomenon in persons with early-stage AD negatively impacting their quality of life. Understanding illness representations in earlier stages may facilitate implementing optimized care that supports improved quality of life and well-being., This study was funded by the Medical Department of Roche Farma Spain (ML42346); funding sources with Life Molecular Imaging, Bioiberica, and Schwabe; and grants from CIBERNED, EU/EFPIA, Instituto de Salud Carlos III (ISCIII), Fundación La Caixa, and Grífols.

Published
2022

43. Cerebellar and brainstem infarction secondary to basilar artery dolichoectasia

Author

Anca Motataianu, Laura Barcutean, Ioana Gherman, Smaranda Maier, Zoltan Bajko, and Adrian Balasa

Subjects
medicine.medical_specialty, business.industry, dolichoectasia, vertebrobasilar arterial system, Neurology, Brainstem infarction, Internal medicine, medicine.artery, cardiovascular system, Cardiology, Basilar artery, Medicine, cardiovascular diseases, Neurology. Diseases of the nervous system, Neurology (clinical), RC346-429, business, brainstem and cerebellar stroke
Abstract

Vertebrobasilar dolichoectasia (VBD) is a rare condition characterized by a significant dilation, elongation and tortuosity of the arteries emerging from the vertebrobasilar system. In this study, we report a 57-year-old male, with medical history of recurrent migraines and right peroneal nerve palsy, which presents the sudden onset of clinical signs of brainstem and cerebellar stroke. The brain CT scan revealed an inhomogeneous, hyperdense prepontine lesion, situated in the area of basilar artery (BA) projection. The cerebral angiography showed in the V4 segment of the left vertebral artery (VA) a focal, concentric stenosis of 70%, followed by a fusiform dilation extended to the BA bifurcation, a saccular aneurysmal dilation in the communicant segment of the internal carotid artery and tortuous trajectory of the abdominal and thoracic aorta, including the supra-aortic vessels. The brain MRI revealed a bulbopontin and left cerebellum infarction. Patient developed at 48 hours after hospitalization livedo reticularis at the level of the right thoracic wall and thighs. The nerve conduction studies revealed mononeuritis multiplex. The vascular anomaly that was identified in the presented case respects the criteria for a VBD, however the involvement of the aorta with the presence of tortuosities, the simultaneous presence of the internal carotid artery aneurysm, together with the presence of the mononeuritis multiplex and the skin condition (livedo reticularis) suggest the possibility of coexistence of a systemic vasculitis, possible polyarteritis nodosa.

Published
2019

44. Neuropathology of a patient with Alzheimer disease treated with low doses of verubecestat

Author

Jordi Clarimón, Rafael Blesa, Raúl Núñez-Llaves, Paula Ferrer-Raventós, Ellen Gelpi, Laura Molina-Porcel, Beatriu Molina, Olivia Belbin, Raquel Sánchez-Valle, Jordi Pegueroles, Alberto Lleó, Sònia Sirisi, Mircea Balasa, Maria Florencia Iulita, Marta Querol-Vilaseca, Oriol Dols-Icardo, and Juan Fortea

Subjects
Oncology, medicine.medical_specialty, Amyloid beta-Peptides, Histology, Thiadiazines, business.industry, Low dose, MEDLINE, Brain, Plaque, Amyloid, Neuropathology, medicine.disease, Cyclic S-Oxides, Pathology and Forensic Medicine, Neurology, Alzheimer Disease, Physiology (medical), Internal medicine, medicine, Humans, Verubecestat, Neurology (clinical), Alzheimer's disease, business
Abstract

We report the neuropathological examination of a patient with Alzheimer's disease (AD) treated for 38 months with low doses of the BACE-1 inhibitor verubecestat. Brain examination showed small plaque size, reduced dystrophic neurites around plaques and reduced synaptic-associated Aβ compared with a group of age-matched untreated sporadic AD (SAD) cases. Our findings suggest that BACE-1 inhibition has an impact on synaptic soluble Aβ accumulation and neuritic derangement in AD.

Published
2021

45. ALTOIDA‐iADL for the diagnosis of Mild Cognitive Impairment and early Alzheimer's disease

Author

Adrià Tort‐Merino, Ioannis Tarnanas, Maximilian Bügler, Robbert Harms, Guadalupe Fernandez‐Villullas, Jordi Juncà‐Parella, Beatriz Bosch, Albert Lladó, Raquel Sanchez‐Valle, and Mircea Balasa

Subjects
Psychiatry and Mental health, Cellular and Molecular Neuroscience, Developmental Neuroscience, Epidemiology, Health Policy, Neurology (clinical), Geriatrics and Gerontology
Published
2021

46. Impact of COVID‐19 pandemic in an early‐onset dementia clinic in Barcelona

Author

José Contador, Nuria Guillén, Adrià Tort‐Merino, Mircea Balasa, Neus Falgàs Martínez, Jaume Olives, Magdalena Castellví, Jordi Juncà‐Parella, Sergi Borrego‐Écija, Beatriz Bosch‐Capdevila, Guadalupe Fernández‐Villullas, Oscar Ramos‐Campoy, Anna Antonell, Raquel Sanchez‐Valle, and Albert Lladó

Subjects
Psychiatry and Mental health, Cellular and Molecular Neuroscience, Developmental Neuroscience, Epidemiology, Health Policy, Neurology (clinical), Geriatrics and Gerontology
Published
2021

47. Stratifying the Presymptomatic Phase of Genetic Frontotemporal Dementia by Serum NfL and pNfH: A Longitudinal Multicentre Study

Author

Wilke, Carlo, Reich, Selina, Swieten, John C., Borroni, Barbara, Sanchez‐Valle, Raquel, Moreno, Fermin, Laforce, Robert, Graff, Caroline, Galimberti, Daniela, Rowe, James B., Masellis, Mario, Tartaglia, Maria C., Finger, Elizabeth, Vandenberghe, Rik, Mendonça, Alexandre, Tagliavini, Fabrizio, Santana, Isabel, Ducharme, Simon, Butler, Chris R., Gerhard, Alexander, Levin, Johannes, Danek, Adrian, Otto, Markus, Frisoni, Giovanni, Ghidoni, Roberta, Sorbi, Sandro, Bocchetta, Martina, Todd, Emily, Kuhle, Jens, Barro, Christian, Afonso, Sónia, Almeida, Maria Rosario, Anderl‐Straub, Sarah, Andersson, Christin, Antonell, Anna, Archetti, Silvana, Arighi, Andrea, Balasa, Mircea, Barandiaran, Myriam, Bargalló, Nuria, Bartha, Robart, Bender, Benjamin, Benussi, Alberto, Benussi, Luisa, Bessi, Valentina, Binetti, Giuliano, Black, Sandra, Borrego‐Ecija, Sergi, Bras, Jose, Bruffaerts, Rose, Cañada, Marta, Cantoni, Valentina, Caroppo, Paola, Cash, David, Castelo‐Branco, Miguel, Convery, Rhian, Cope, Thomas, Di Fede, Giuseppe, Díez, Alina, Duro, Diana, Fenoglio, Chiara, Ferrari, Camilla, Ferreira, Catarina B., Fox, Nick, Freedman, Morris, Fumagalli, Giorgio, Gabilondo, Alazne, Gasparotti, Roberto, Gauthier, Serge, Gazzina, Stefano, Giaccone, Giorgio, Gorostidi, Ana, Greaves, Caroline, Guerreiro, Rita, Heller, Carolin, Hoegen, Tobias, Indakoetxea, Begoña, Jelic, Vesna, Jiskoot, Lize, Karnath, Hans‐Otto, Keren, Ron, Langheinrich, Tobias, Leitão, Maria João, Lladó, Albert, Lombardi, Gemma, Loosli, Sandra, Maruta, Carolina, Mead, Simon, Meeter, Lieke, Miltenberger, Gabriel, Minkelen, Rick, Mitchell, Sara, Moore, Katrina, Nacmias, Benedetta, Nicholas, Jennifer, Öijerstedt, Linn, Olives, Jaume, Ourselin, Sebastien, Padovani, Alessandro, Panman, Jessica, Papma, Janne M., Peakman, Georgia, Pievani, Michela, Pijnenburg, Yolande, Polito, Cristina, Premi, Enrico, Prioni, Sara, Prix, Catharina, Rademakers, Rosa, Redaelli, Veronica, Rittman, Tim, Rogaeva, Ekaterina, Rosa‐Neto, Pedro, Rossi, Giacomina, Rosser, Martin, Santiago, Beatriz, Scarpini, Elio, Schönecker, Sonja, Seelaar, Harro, Semler, Elisa, Shafei, Rachelle, Shoesmith, Christen, Tábuas‐Pereira, Miguel, Tainta, Mikel, Taipa, Ricardo, Tang‐Wai, David, Thomas, David L., Thompson, Paul, Thonberg, Hakan, Timberlake, Carolyn, Tiraboschi, Pietro, Van Damme, Philip, Vandenbulcke, Mathieu, Veldsman, Michele, Verdelho, Ana, Villanua, Jorge, Warren, Jason, Woollacott, Ione, Wlasich, Elisabeth, Zetterberg, Henrik, Zulaica, Miren, Rohrer, Jonathan D., Synofzik, Matthis, Repositório da Universidade de Lisboa, Neurology, and Clinical Genetics

Subjects
blood [Frontotemporal Dementia], Male, Oncology, Medizin, blood [Neurofilament Proteins], Disease, Cohort Studies, 0302 clinical medicine, Settore BIO/13 - Biologia Applicata, Neurofilament Proteins, C9orf72, CRITERIA, Longitudinal Studies, Stage (cooking), 0303 health sciences, blood [Biomarkers], FTD, Middle Aged, 3. Good health, Neurology, Frontotemporal Dementia, Cohort, Biomarker (medicine), Female, Life Sciences & Biomedicine, Frontotemporal dementia, Treatment response, medicine.medical_specialty, Clinical Neurology, C9ORF72, IMMUNOASSAY, 03 medical and health sciences, Atrophy, Internal medicine, NEUROFILAMENT LIGHT-CHAIN, medicine, Humans, ddc:610, Aged, 030304 developmental biology, Science & Technology, HEXANUCLEOTIDE REPEAT, MUTATIONS, business.industry, DISEASE PROGRESSION, Neurosciences, medicine.disease, Biomarkers, Neurosciences & Neurology, Neurology (clinical), TAU, business, 030217 neurology & neurosurgery
Abstract

© 2021 The Authors. Annals of Neurology published by Wiley Periodicals LLC on behalf of American Neurological Association. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited., Objective: Although the presymptomatic stages of frontotemporal dementia (FTD) provide a unique chance to delay or even prevent neurodegeneration by early intervention, they remain poorly defined. Leveraging a large multicenter cohort of genetic FTD mutation carriers, we provide a biomarker-based stratification and biomarker cascade of the likely most treatment-relevant stage within the presymptomatic phase: the conversion stage. Methods: We longitudinally assessed serum levels of neurofilament light (NfL) and phosphorylated neurofilament heavy (pNfH) in the Genetic FTD Initiative (GENFI) cohort (n = 444), using single-molecule array technique. Subjects comprised 91 symptomatic and 179 presymptomatic subjects with mutations in the FTD genes C9orf72, GRN, or MAPT, and 174 mutation-negative within-family controls. Results: In a biomarker cascade, NfL increase preceded the hypothetical clinical onset by 15 years and concurred with brain atrophy onset, whereas pNfH increase started close to clinical onset. The conversion stage was marked by increased NfL, but still normal pNfH levels, while both were increased at the symptomatic stage. Intra-individual change rates were increased for NfL at the conversion stage and for pNfH at the symptomatic stage, highlighting their respective potential as stage-dependent dynamic biomarkers within the biomarker cascade. Increased NfL levels and NfL change rates allowed identification of presymptomatic subjects converting to symptomatic disease and capture of proximity-to-onset. We estimate stage-dependent sample sizes for trials aiming to decrease neurofilament levels or change rates. Interpretation: Blood NfL and pNfH provide dynamic stage-dependent stratification and, potentially, treatment response biomarkers in presymptomatic FTD, allowing demarcation of the conversion stage. The proposed biomarker cascade might pave the way towards a biomarker-based precision medicine approach to genetic FTD., W. and M.S. are members of the European Reference Network for Rare Neurological Diseases Project ID No. 739510. This work was supported by the Horizon 2020 research and innovation program (grant 779257 Solve-RD to M.S.), the National Ataxia Foundation (grant to C.W. and M.S.), the Wilhelm Vaillant Stiftung (grant to C.W.), the EU Joint Programme – Neurodegenerative Disease Research (JPND) “GENFI-prox” through participating national funding agencies (by DLR/BMBF to M.S., J.D.R., B.B., C.G., and M.O.), and the European Union's Horizon 2020 research and innovation programme under grant agreement No. 643417. J.C.S. and H.S. received funding by two Memorabel grants from Deltaplan Dementie (The Netherlands Organisation for Health Research and Development and Alzheimer Nederland; grant numbers 733050813 and 733050103) in the Netherlands and the Bluefield Project to Cure Frontotemporal Dementia. J.B.R. was supported by the NIHR Cambridge Biomedical Research Centre (BRC-1215-20014) and the Medical Research Council (SUAG/051 G101400). C.B. is supported by a postdoctoral fellowship from the Swiss National Science Foundation (P400PM_191077). J.D.R. is supported by the Miriam Marks Brain Research UK Senior Fellowship and has received funding from an MRC Clinician Scientist Fellowship (MR/M008525/1) and the NIHR Rare Disease Translational Research Collaboration (BRC149/NS/MH). This work was also supported by the MRC UK GENFI grant (MR/M023664/1), the Bluefield Project and the JPND GENFI-PROX grant (2019-02248).

Published
2021

48. MRI data-driven algorithm for the diagnosis of behavioural variant frontotemporal dementia

Author

Manera, Ana L, Dadar, Mahsa, Van Swieten, John Cornelis, Borroni, Barbara, Sanchez-Valle, Raquel, Moreno, Fermin, Laforce Jr, Robert, Graff, Caroline, Synofzik, Matthis, Galimberti, Daniela, Rowe, James Benedict, Masellis, Mario, Tartaglia, Maria Carmela, Finger, Elizabeth, Vandenberghe, Rik, De Mendonca, Alexandre, Tagliavini, Fabrizio, Santana, Isabel, Butler, Christopher R, Gerhard, Alex, Danek, Adrian, Levin, Johannes, Otto, Markus, Frisoni, Giovanni, Ghidoni, Roberta, Sorbi, Sandro, Rohrer, Jonathan Daniel, Ducharme, Simon, Collins, D Louis, FTLDNI Investigators, Rosen, Howard, Dickerson, Bradford C., Domoto-Reilly, Kimoko, Knopman, David, Boeve, Bradley F., Boxer, Adam L., Kornak, John, Miller, Bruce L., Seeley, William W., Gorno-Tempini, Maria-Luisa, McGinnis, Scott, Mandelli, Maria Luisa, GENFI Consortium, Afonso, Sónia, Almeida, Maria Rosario, Anderl-Straub, Sarah, Andersson, Christin, Antonell, Anna, Archetti, Silvana, Arighi, Andrea, Balasa, Mircea, Barandiaran, Myriam, Bargalló, Nuria, Bartha, Robart, Bender, Benjamin, Benussi, Alberto, Benussi, Luisa, Bessi, Valentina, Binetti, Giuliano, Black, Sandra, Bocchetta, Martina, Borrego-Ecija, Sergi, Bras, Jose, Bruffaerts, Rose, Caroppo, Paola, Cash, David, Castelo-Branco, Miguel, Convery, Rhian, Cope, Thomas, Cosseddu, Maura, Arriba, María De, Fede, Giuseppe Di, Díaz, Zigor, Duro, Diana, Fenoglio, Chiara, Ferrari, Camilla, Ferreira, Carlos, Ferreira, Catarina B., Flanagan, Toby, Fox, Nick, Freedman, Morris, Fumagalli, Giorgio, Gabilondo, Alazne, Gasparotti, Roberto, Gauthier, Serge, Gazzina, Stefano, Giaccone, Giorgio, Gorostidi, Ana, Greaves, Caroline, Guerreiro, Rita, Heller, Carolin, Hoegen, Tobias, Indakoetxea, Begoña, Jelic, Vesna, Jiskoot, Lize, Karnath, Hans-Otto, Keren, Ron, Leitão, Maria João, Lladó, Albert, Lombardi, Gemma, Loosli, Sandra, Maruta, Carolina, Mead, Simon, Meeter, Lieke, Miltenberger, Gabriel, Minkelen, Rick Van, Mitchell, Sara, Moore, Katrina M, Nacmias, Benedetta, Neason, Mollie, Nicholas, Jennifer, Öijerstedt, Linn, Olives, Jaume, Ourselin, Sebastien, Padovani, Alessandro, Panman, Jessica, Papma, Janne, Peakman, Georgia, Piaceri, Irene, Pievani, Michela, Pijnenburg, Yolande, Polito, Cristina, Premi, Enrico, Prioni, Sara, Prix, Catharina, Rademakers, Rosa, Redaelli, Veronica, Rittman, Tim, Rogaeva, Ekaterina, Rosa-Neto, Pedro, Rossi, Giacomina, Rossor, Martin, Santiago, Beatriz, Scarpini, Elio, Schönecker, Sonja, Semler, Elisa, Shafei, Rachelle, Shoesmith, Christen, Tábuas-Pereira, Miguel, Tainta, Mikel, Taipa, Ricardo, Tang-Wai, David, Thomas, David L, Thonberg, Hakan, Timberlake, Carolyn, Tiraboschi, Pietro, Todd, Emily, Vandamme, Philip, Vandenbulcke, Mathieu, Veldsman, Michele, Verdelho, Ana, Villanua, Jorge, Warren, Jason, Wilke, Carlo, Woollacott, Ione, Wlasich, Elisabeth, Zetterberg, Henrik, Zulaica, Miren, Neurology, Amsterdam Neuroscience - Neurodegeneration, Repositório da Universidade de Lisboa, Manera, Ana L [0000-0003-1639-6858], Dadar, Mahsa [0000-0003-4008-2672], Van Swieten, John Cornelis [0000-0001-6278-6844], Borroni, Barbara [0000-0001-9340-9814], Galimberti, Daniela [0000-0002-9284-5953], Rowe, James Benedict [0000-0001-7216-8679], Finger, Elizabeth [0000-0003-4461-7427], Otto, Markus [0000-0002-6647-5944], Rohrer, Jonathan Daniel [0000-0002-6155-8417], Ducharme, Simon [0000-0002-7309-1113], Apollo - University of Cambridge Repository, and Clinical Genetics

Subjects
medicine.medical_specialty, Audiology, Cross-validation, 03 medical and health sciences, 0302 clinical medicine, Text mining, Cognitive neurology, Neuroimaging, SDG 3 - Good Health and Well-being, Medicine, ddc:610, 030304 developmental biology, 0303 health sciences, business.industry, Semantic fluency, medicine.disease, 3. Good health, Random forest, Psychiatry and Mental health, Cohort, Surgery, Neurology (clinical), Differential diagnosis, business, 030217 neurology & neurosurgery, Frontotemporal dementia
Abstract

© Author(s) (or their employer(s)) 2021. No commercial re-use. See rights and permissions. Published by BMJ., Introduction: Structural brain imaging is paramount for the diagnosis of behavioural variant of frontotemporal dementia (bvFTD), but it has low sensitivity leading to erroneous or late diagnosis. Methods: A total of 515 subjects from two different bvFTD cohorts (training and independent validation cohorts) were used to perform voxel-wise morphometric analysis to identify regions with significant differences between bvFTD and controls. A random forest classifier was used to individually predict bvFTD from deformation-based morphometry differences in isolation and together with semantic fluency. Tenfold cross validation was used to assess the performance of the classifier within the training cohort. A second held-out cohort of genetically confirmed bvFTD cases was used for additional validation. Results: Average 10-fold cross-validation accuracy was 89% (82% sensitivity, 93% specificity) using only MRI and 94% (89% sensitivity, 98% specificity) with the addition of semantic fluency. In the separate validation cohort of definite bvFTD, accuracy was 88% (81% sensitivity, 92% specificity) with MRI and 91% (79% sensitivity, 96% specificity) with added semantic fluency scores. Conclusion: Our results show that structural MRI and semantic fluency can accurately predict bvFTD at the individual subject level within a completely independent validation cohort coming from a different and independent database., Data collection and sharing for this project was funded by the Frontotemporal Lobar Degeneration Neuroimaging Initiative (National Institutes of Health Grant R01 AG032306). The study is coordinated through the University of California, San Francisco, Memory and Aging Center. FTLDNI data are disseminated by the Laboratory for Neuro Imaging at the University of Southern California. Brain scan acquisition at the McConnell Brain Imaging was supported by the Brain Canada Foundation with support from Health Canada and the Canada Foundation for Innovation (CFI Project 34874). This work was supported by Italian Ministry of Health (CoEN015 and Ricerca Corrente).

Published
2021

49. Pontine cavernoma haemorrhage at 24 weeks of pregnancy that resulted in eight-and-a-half syndrome

Author

Adrian Balasa, Zoltan Bajko, Andreea Romaniuc, Smaranda Maier, and Anca Motataianu

Subjects
Adult, Hemangioma, Cavernous, Central Nervous System, medicine.medical_specialty, Pregnancy, Neurology, medicine.diagnostic_test, business.industry, Facial Paralysis, MEDLINE, Magnetic resonance imaging, General Medicine, medicine.disease, Magnetic Resonance Imaging, Pregnancy Complications, Hemangioma, Pons, medicine, Brain Stem Neoplasms, Humans, Female, Neurology (clinical), Radiology, business, Neuroradiology
Published
2019

50. Morphometric Analysis for Surgical Treatment of Cervical Discopathy by Posterior Laminoforaminotomy: Radiologic Study and Technical Note

Author

Łukasz Przepiórka, Artur Balasa, Przemysław Kunert, Tomasz Dziedzic, Andrzej Marchel, and Mateusz Bielecki

Subjects
Adult, Male, Facet (geometry), Adolescent, medicine.medical_treatment, Articular processes, Posterior approach, Young Adult, 03 medical and health sciences, 0302 clinical medicine, Cadaver, medicine, Humans, Intervertebral Disc, Surgical treatment, Foraminotomy, business.industry, Laminectomy, Technical note, Middle Aged, Cervical spine, medicine.anatomical_structure, Morphometric analysis, 030220 oncology & carcinogenesis, Facetectomy, Cervical Vertebrae, Female, Surgery, Neurology (clinical), Tomography, X-Ray Computed, Nuclear medicine, business, 030217 neurology & neurosurgery
Abstract

Background The main concern with the posterior approach is the risk of postoperative segmental instability. The most commonly cited rule is that removal of the medial half of the articular facet provides adequate surgical exposure and has no effect on stability. The aim of this study was to define the areas of the articular processes in the cervical spine that can be safely removed. Methods Computed tomography scans of 50 cervical spines were analyzed. Measurements were analyzed for bone removal assuming the standard technique of posterior laminoforaminotomy. The width of the facet was measured at the level of the widest dimension. The height of the articular process was taken from the bottom (in the case of inferior process) or top (in the case of superior process) of the process. Results The mean width of the articular process ranged from 11.8 ± 1.5 mm (range, 8.3–15.7 mm) at the C2-C3 level to 14.6 ± 1.7 mm at the C6-C7 level. At the cervicothoracic junction (C7-T1 level), the mean width decreased to 14.0 ± 1.7 mm. The mean value for both sides when the inferior articular process was measured at all levels was 5.0 ± 1.4 mm (range, 4.5–5.8 mm). The mean height of the superior articular process was 7.7 ± 1.5 mm (range, 6.8–8.3 mm). Conclusions Based on our findings, our “5-5-7 mm rule” corresponds to the amount of bone removal for each step of the laminoforaminotomy.

Published
2019

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