Author: "Bertin , Hugo" / Topic: alzheimer's disease - Searchworks@Jio Institute Digital Library Search Results

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1. Applicability of in vivo staging of regional amyloid burden in a cognitively normal cohort with subjective memory complaints: the INSIGHT-preAD study.

Author: Sakr, Fatemah A, Grothe, Michel J, Cavedo, Enrica, Jelistratova, Irina, Habert, Marie-Odile, Dyrba, Martin, Gonzalez-Escamilla, Gabriel, Bertin, Hugo, Locatelli, Maxime, Lehericy, Stephane, Teipel, Stefan, Dubois, Bruno, Hampel, Harald, INSIGHT-preAD study group, and Alzheimer Precision Medicine Initiative (APMI)
Subjects: INSIGHT-preAD study group, Alzheimer Precision Medicine Initiative, Amyloid PET, In vivo staging, Subjective memory complaint, Neurodegenerative, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Neurosciences, Acquired Cognitive Impairment, Alzheimer's Disease, Brain Disorders, Aging, Clinical Research, Dementia, 2.1 Biological and endogenous factors, 4.1 Discovery and preclinical testing of markers and technologies, Neurological, Alzheimer's Disease including Alzheimer's Disease Related Dementias, Medical and Health Sciences
Abstract: BACKGROUND:Current methods of amyloid PET interpretation based on the binary classification of global amyloid signal fail to identify early phases of amyloid deposition. A recent analysis of 18F-florbetapir PET data from the Alzheimer's disease Neuroimaging Initiative cohort suggested a hierarchical four-stage model of regional amyloid deposition that resembles neuropathologic estimates and can be used to stage an individual's amyloid burden in vivo. Here, we evaluated the validity of this in vivo amyloid staging model in an independent cohort of older people with subjective memory complaints (SMC). We further examined its potential association with subtle cognitive impairments in this population at elevated risk for Alzheimer's disease (AD). METHODS:The monocentric INSIGHT-preAD cohort includes 318 cognitively intact older individuals with SMC. All individuals underwent 18F-florbetapir PET scanning and extensive neuropsychological testing. We projected the regional amyloid uptake signal into the previously proposed hierarchical staging model of in vivo amyloid progression. We determined the adherence to this model across all cases and tested the association between increasing in vivo amyloid stage and cognitive performance using ANCOVA models. RESULTS:In total, 156 participants (49%) showed evidence of regional amyloid deposition, and all but 2 of these (99%) adhered to the hierarchical regional pattern implied by the in vivo amyloid progression model. According to a conventional binary classification based on global signal (SUVRCereb = 1.10), individuals in stages III and IV were classified as amyloid-positive (except one in stage III), but 99% of individuals in stage I and even 28% of individuals in stage II were classified as amyloid-negative. Neither in vivo amyloid stage nor conventional binary amyloid status was significantly associated with cognitive performance in this preclinical cohort. CONCLUSIONS:The proposed hierarchical staging scheme of PET-evidenced amyloid deposition generalizes well to data from an independent cohort of older people at elevated risk for AD. Future studies will determine the prognostic value of the staging approach for predicting longitudinal cognitive decline in older individuals at increased risk for AD.
Published: 2019

2. Evaluation of amyloid status in a cohort of elderly individuals with memory complaints: validation of the method of quantification and determination of positivity thresholds

Author: Habert, Marie-Odile, Bertin, Hugo, Labit, Mickael, Diallo, Mamadou, Marie, Sullivan, Martineau, Kelly, Kas, Aurélie, Causse-Lemercier, Valérie, Bakardjian, Hovagim, Epelbaum, Stéphane, Chételat, Gael, Houot, Marion, Hampel, Harald, Dubois, Bruno, Mangin, Jean-François, Audrain, C., Bakardjian, H., Benali, H., Bertin, H., Boukadida, L., Cacciamani, F., Causse-Lemercier, V., Cavedo, E., Chiesa, P., Colliot, O., Dos Santos, A., Dubois, B., Durrleman, S., Epelbaum, S., Gagliardi, G., Genthon, R., Habert, M.-O., Hampel, H., Jungalee, N., Kas, A., Lehericy, S., Lamari, F., Letondor, C., Levy, M., Lista, S., Mochel, F., Nyasse, F., Poisson, C., Potier, M. C., Revillon, M., Rojkova, K., Roy, P., Santos-Andrade, K., Santos, A., Simon, V., Sole, M., Tandetnik, C., Thiebaud De Schotten, M., and INSIGHT-AD study group
Published: 2017
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3. Biomarker-guided clustering of Alzheimer's disease clinical syndromes

Author: Toschi, Nicola, Lista, Simone, Lamari, Foudil, Genthon, Remy, Habert, Marie-Odile, Dubois, Bruno, Floris, Roberto, Garaci, Francesco, Vergallo, Andrea, Hampel, Harald, group, INSIGHT-preAD study, Initiative, Alzheimer Precision Medicine, Baldacci, Filippo, Bakardjian, Hovagim, Benali, Habib, Bertin, Hugo, Bonheur, Joel, Boukadida, Laurie, Boukerrou, Nadia, Cavedo, Enrica, Chiesa, Patrizia, Colliot, Olivier, Dubois, Marion, Epelbaum, Stéphane, Gagliardi, Geoffroy, Houot, Marion, Kas, Aurélie, Levy, Marcel, Zetterberg, Henrik, Metzinger, Christiane, Mochel, Fanny, Nyasse, Francis, Poisson, Catherine, Potier, Marie-Claude, Revillon, Marie, Santos, Antonio, Andrade, Katia Santos, Sole, Marine, Blennow, Kaj, Surtee, Mohmed, Thiebaut de Schotten, Michel, Younsi, Nadjia, Kilimann, Ingo, Teipel, Stefan J, Melo Dos Santos, Antonio, Alzheimer Precision Medicine [CHU Pitié-Salpétriêre] (GRC 21 AMP), 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), 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), Laboratoire d'Imagerie Biomédicale (LIB), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), CCSD, Accord Elsevier, Università degli Studi di Roma Tor Vergata [Roma], Athinoula A. Martinos Center for Biomedical Imaging, Harvard Medical School [Boston] (HMS)-Massachusetts General Hospital [Boston], Alzheimer Precision Medicine [CHU Pitié-Salpétriêre] (GRC 21 APM), 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), University of Pisa - Università di Pisa, University of Gothenburg (GU), University of Rostock, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Centre pour l'Acquisition et le Traitement des Images (CATI), Eisai, and Hovagim Bakardjian, Habib Benali, Hugo Bertin, Joel Bonheur, Laurie Boukadida, Nadia Boukerrou, Enrica Cavedo, Patrizia Chiesa, Olivier Colliot, Bruno Dubois, Marion Dubois, Stéphane Epelbaum, Geoffroy Gagliardi, Remy Genthon, Marie-Odile Habert, Harald Hampel, Marion Houot, Aurélie Kas, Foudil Lamari, Marcel Levy, Simone Lista, Christiane Metzinger, Fanny Mochel, Francis Nyasse, Catherine Poisson, Marie-Claude Potier, Marie Revillon, Antonio Santos, Katia Santos Andrade, Marine Sole, Mohmed Surtee, Michel Thiebaut de Schotten, Andrea Vergallo, Nadjia Younsi
Subjects: Male, 0301 basic medicine, Oncology, Aging, [SDV]Life Sciences [q-bio], cerebrospinal fluid [Amyloid beta-Peptides], Disease, 0302 clinical medicine, Risk Factors, General Neuroscience, Precision medicine, diagnosis [Alzheimer Disease], Alzheimer's disease, Middle Aged, Pathophysiology, 3. Good health, [SDV] Life Sciences [q-bio], cerebrospinal fluid [Alzheimer Disease], cerebrospinal fluid [Cognitive Dysfunction], cerebrospinal fluid [Biomarkers], Biomarker (medicine), Female, Biomarker-guided categorization, Clustering, medicine.medical_specialty, tau Proteins, Neuropathology, 03 medical and health sciences, Settore MED/36 - Diagnostica per Immagini e Radioterapia, Alzheimer Disease, Internal medicine, medicine, Humans, Dementia, Cognitive Dysfunction, ddc:610, cerebrospinal fluid [Peptide Fragments], Cluster analysis, Aged, Amyloid beta-Peptides, business.industry, medicine.disease, Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin), Peptide Fragments, 030104 developmental biology, diagnosis [Cognitive Dysfunction], cerebrospinal fluid [tau Proteins], Spatial clustering, Neurology (clinical), Geriatrics and Gerontology, business, Biomarkers, 030217 neurology & neurosurgery, Developmental Biology
Abstract: International audience; Alzheimer's disease (AD) neuropathology is extremely heterogeneous, and the evolution from preclinical to mild cognitive impairment until dementia is driven by interacting genetic/biological mechanisms not fully captured by current clinical/research criteria. We characterized the heterogeneous "construct" of AD through a cerebrospinal fluid biomarker-guided stratification approach. We analyzed 5 validated pathophysiological cerebrospinal fluid biomarkers (Aβ1-42, t-tau, p-tau181, NFL, YKL-40) in 113 participants (healthy controls [N = 20], subjective memory complainers [N = 36], mild cognitive impairment [N = 20], and AD dementia [N = 37], age: 66.7 ± 10.4, 70.4 ± 7.7, 71.7 ± 8.4, 76.2 ± 3.5 years [mean ± SD], respectively) using Density-Based Spatial Clustering of Applications with Noise, which does not require a priori determination of the number of clusters. We found 5 distinct clusters (sizes: N = 38, 16, 24, 14, and 21) whose composition was independent of phenotypical groups. Two clusters showed biomarker profiles linked to neurodegenerative processes not associated with classical AD-related pathophysiology. One cluster was characterized by the neuroinflammation biomarker YKL-40. Combining nonlinear data aggregation with informative biomarkers can generate novel patient strata which are representative of cellular/molecular pathophysiology and may aid in predicting disease evolution and mechanistic drug response.
Published: 2019
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4. Subjective cognitive decline and rates of incident Alzheimer's disease and non–Alzheimer's disease dementia

Author: Slot, Rosalinde E R, Sikkes, Sietske A M, Lista, Simone, Luck, Tobias, Maruff, Paul, Molinuevo, José Luis, Kornhuber, Johannes, Reisberg, Barry, Riedel-Heller, Steffi G, Risacher, Shannon L, Roehr, Susanne, Sachdev, Perminder S, Berkhof, Johannes, Scarmeas, Nikolaos, Scheltens, Philip, Shulman, Melanie B, Saykin, Andrew J, Verfaillie, Sander C J, Visser, Pieter Jelle, Vos, Stephanie J B, Wagner, Michael, Wolfsgruber, Steffen, Jessen, Frank, Brodaty, Henry, Initiative, Alzheimer's Disease Neuroimaging, group, DESCRIPA working, group, INSIGHT-preAD study, group, SCD-I working, van der Flier, Wiesje M, Boada, Mercè, de Deyn, Peter Paul, Jones, Roy, Frisoni, Giovanni, Spiru, Luiza, Buckley, Rachel, Nobili, Flavio, Freund-Levi, Yvonne, Soininen, Hilkka, Verhey, Frans, Wallin, Åsa K, Touchon, Jacques, Rikkert, Marcel Olde, Rigaud, Anne-Sophie, Bullock, Roger, Tsolaki, Magda, Cavedo, Enrica, Vellas, Bruno, Wilcock, Gordon, Hampel, Harald, Froelich, Lutz, Bakardjian, Hovagim, Benali, Habib, Bertin, Hugo, Bonheur, Joel, Boukadida, Laurie, Boukerrou, Nadia, Dardiotis, Efthimios, Chiesa, Patrizia, Colliot, Olivier, Dubois, Bruno, Dubois, Marion, Epelbaum, Stéphane, Gagliardi, Geoffroy, Genthon, Remy, Habert, Marie-Odile, Guillo-Benarous, Francoise, Houot, Marion, Kas, Aurélie, Lamari, Foudil, Levy, Marcel, Metzinger, Christiane, Mochel, Fanny, Nyasse, Francis, Poisson, Catherine, Potier, Marie-Claude, Revillon, Marie, Santos, Antonio, Andrade, Katia Santos, Sole, Marine, Surtee, Mohmed, Thiebaud de Schotten, Michel, Vergallo, Andrea, Younsi, Nadjia, Kochan, Nicole A, Psychiatrie & Neuropsychologie, RS: MHeNs - R1 - Cognitive Neuropsychiatry and Clinical Neuroscience, DESCRIPA working group, INSIGHT-preAD study group, SCD-I working group, Neurology, Amsterdam Neuroscience - Neurodegeneration, Epidemiology and Data Science, APH - Methodology, APH - Personalized Medicine, and Clinical Neuropsychology
Subjects: 0301 basic medicine, Male, NATIONAL INSTITUTE, Pediatrics, epidemiology [Cognitive Dysfunction], Epidemiology, Dementia incidence, Preclinical Alzheimer's disease, Vascular dementia, Cohort Studies, 0302 clinical medicine, RECRUITMENT METHODS, Risk Factors, Cognitive decline, Aged, 80 and over, Health Policy, Incidence, Hazard ratio, Middle Aged, Alzheimer's disease, IMPAIRMENT, 3. Good health, Psychiatry and Mental health, Disease Progression, Female, psychology [Cognitive Dysfunction], ASSOCIATION WORKGROUPS, Alzheimer’s disease, Frontotemporal dementia, Alzheimer's Disease Neuroimaging Initiative, MAJOR SUBTYPES, medicine.medical_specialty, psychology [Dementia], epidemiology [Dementia], Dementia Lewy bodies, Article, APOLIPOPROTEIN-E, 03 medical and health sciences, Cellular and Molecular Neuroscience, Diagnostic Self Evaluation, Developmental Neuroscience, SDG 3 - Good Health and Well-being, BASE-LINE CHARACTERISTICS, Subjective cognitive decline, Neurology (clinical), Geriatrics and Gerontology, Psychiatry and Mental Health, medicine, Dementia, Humans, Cognitive Dysfunction, ddc:610, OLDER-ADULTS, Preclinical Alzheimer’s disease, Aged, Proportional hazards model, business.industry, Memory clinic, medicine.disease, Self Concept, 030104 developmental biology, DIAGNOSTIC GUIDELINES, Human medicine, business, MEMORY COMPLAINTS, 030217 neurology & neurosurgery
Abstract: Introduction: In this multicenter study on subjective cognitive decline (SCD) in community-based and memory clinic settings, we assessed the (1) incidence of Alzheimer's disease (AD) and non-AD dementia and (2) determinants of progression to dementia.Methods: Eleven cohorts provided 2978 participants with SCD and 1391 controls. We estimated dementia incidence and identified risk factors using Cox proportional hazards models.Results: In SCD, incidence of dementia was 17.7 (95% Poisson confidence interval 15.2-20.3)/1000 person-years (AD: 11.5 [9.6-13.7], non-AD: 6.1 [4.7-7.7]), compared with 14.2 (11.3-17.6) in controls (AD: 10.1 [7.7-13.0], non-AD: 4.1 [2.6-6.0]). The risk of dementia was strongly increased in SCD in a memory clinic setting but less so in a community-based setting. In addition, higher age (hazard ratio 1.1 [95% confidence interval 1.1-1.1]), lower Mini-Mental State Examination (0.7 [0.66-0.8]), and apolipoprotein E epsilon 4 (1.8 [1.3-2.5]) increased the risk of dementia.Discussion: SCD can precede both AD and non-AD dementia. Despite their younger age, individuals with SCD in a memory clinic setting have a higher risk of dementia than those in community-based cohorts. (C) 2018 The Authors. Published by Elsevier Inc.
Published: 2019
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5. MiRNA-15b and miRNA-125b are associated with regional Aβ-PET and FDG-PET uptake in cognitively normal individuals with subjective memory complaints

Author: Vergallo, Andrea, Lista, Simone, group, INSIGHT-preAD study, Lucía, Alejandro, Mango, Dalila, Mapstone, Mark, Neri, Christian, Nisticò, Robert, O'Bryant, Sid E, Palermo, Giovanni, Perry, George, Ritchie, Craig, Rossi, Simone, Initiative, Alzheimer Precision Medicine, Saidi, Amira, Santarnecchi, Emiliano, Schneider, Lon S, Sporns, Olaf, Toschi, Nicola, Valenzuela, Pedro L, Vellas, Bruno, Verdooner, Steven R, Villain, Nicolas, Giudici, Kelly Virecoulon, Bakardjian, Hovagim, Watling, Mark, Welikovitch, Lindsay A, Woodcock, Janet, Younesi, Erfan, Zugaza, José L, Benali, Habib, Bertin, Hugo, Bonheur, Joel, Boukadida, Laurie, Boukerrou, Nadia, Cavedo, Enrica, Chiesa, Patrizia, Zhao, Yuhai, Colliot, Olivier, Dubois, Bruno, Dubois, Marion, Epelbaum, Stéphane, Gagliardi, Geoffroy, Genthon, Remy, Habert, Marie-Odile, Hampel, Harald, Houot, Marion, Kas, Aurélie, Lemercier, Pablo, Lamari, Foudil, Levy, Marcel, Metzinger, Christiane, Mochel, Fanny, Nyasse, Francis, Poisson, Catherine, Potier, Marie-Claude, Revillon, Marie, Santos, Antonio, Teipel, Stefan J, Andrade, Katia Santos, Sole, Marine, Surtee, Mohmed, de Schotten, Michel Thiebaut, Younsi, Nadjia, Afshar, Mohammad, Aguilar, Lisi Flores, Akman-Anderson, Leyla, Arenas, Joaquín, Ávila, Jesús, Babiloni, Claudio, Baldacci, Filippo, Batrla, Richard, Benda, Norbert, Black, Keith L, Bokde, Arun L W, Bonuccelli, Ubaldo, Broich, Karl, Cacciola, Francesco, Caraci, Filippo, Caruso, Giuseppe, Castrillo, Juan, Ceravolo, Roberto, Chiesa, Patrizia A, Corbo, Massimo, Corvol, Jean-Christophe, Cuello, Augusto Claudio, Cummings, Jeffrey L, Depypere, Herman, Duggento, Andrea, Emanuele, Enzo, Escott-Price, Valentina, Federoff, Howard, Ferretti, Maria Teresa, Fiandaca, Massimo, Frank, Richard A, Garaci, Francesco, Lukiw, Walter J, Geerts, Hugo, Giacobini, Ezio, Giorgi, Filippo S, Goetzl, Edward J, Graziani, Manuela, Haberkamp, Marion, Hänisch, Britta, Herholz, Karl, Hernandez, Felix, Imbimbo, Bruno P, Kapogiannis, Dimitrios, Karran, Eric, Kiddle, Steven J, Kim, Seung H, Koronyo, Yosef, Koronyo-Hamaoui, Maya, Langevin, Todd, Lehéricy, Stéphane, Llavero, Francisco, Lorenceau, Jean, Ministre de l'Enseignement Supérieur, de la Recherche et de l'Innovation (France), Sorbonne Université, AXA Research Fund, Fondation partenariale, Fondation pour la Recherche sur Alzheimer, Investissement d’Avenir French program, Vergallo, Andrea [0000-0002-0208-6384], Apollo - University of Cambridge Repository, Alzheimer Precision Medicine [CHU Pitié-Salpétriêre] (GRC 21 AMP), CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), 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], 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), Institut de la Mémoire et de la Maladie d'Alzheimer [Paris] (IM2A), Sorbonne Université (SU), Service de Neurologie [CHU Pitié-Salpêtrière], IFR70-CHU Pitié-Salpêtrière [AP-HP], Louisiana State University (LSU), University of Rostock, Laboratoire d'Imagerie Biomédicale (LIB), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), CATI Multicenter Neuroimaging Platform (CATI), Service de médecine nucléaire [CHU Pitié-Salpétrière], Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD), Department of Psychiatry, Psychosomatic Medicine and Psychotherapy [Goethe Universität], Goethe-Universität Frankfurt am Main, HAL-SU, Gestionnaire, Alzheimer Precision Medicine [CHU Pitié-Salpétriêre] (GRC 21 APM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), 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), Service de Médecine nucléaire [CHU Pitié-Salpétrière], Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France, Groupe de recherche clinique Alzheimer Precision Medicine (GRC 21 - APM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Laboratoire d'Imagerie Biomédicale [Paris] (LIB), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France, 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), Service de neurologie 1 [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)
Subjects: Apolipoprotein E, Aging, [SDV.NEU.NB]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Neurobiology, Disease, miRNAs plasma concentrations, Alzheimer's Disease, amyloid-β (Aβ)-positron emission tomography (Aβ-PET), Prognostic markers, 0302 clinical medicine, Medicine, Psychology, Aetiology, education.field_of_study, MicroARNs, Settore FIS/07, amyloid, Brain, Pathophysiology, ALZHEIMERS-DISEASE, Psychiatry and Mental health, Alzheimer's disease (AD), Public Health and Health Services, [SDV.BBM.GTP] Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN], MiRNA, medicine.medical_specialty, 18F-fluorodeoxyglucose-PET (18F-FDG-PET), BIOMARKERS, Neurociencias, Clinical Sciences, Molecular neuroscience, Predictive markers, Article, VESICLES, lcsh:RC321-571, 03 medical and health sciences, Memory, Clinical Research, Alzheimer Disease, [SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN], microRNA, Genetics, Humans, education, Biological Psychiatry, Prevention, Memory, MiRNA, Alzheimer, biological markers, amyloid, 030104 developmental biology, Endocrinology, Cross-Sectional Studies, Positron-Emission Tomography, CELLS, Dementia, diagnostic imaging [Alzheimer Disease], INSIGHT-preAD study group, 030217 neurology & neurosurgery, [SDV.NEU.SC] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Cognitive Sciences, 0301 basic medicine, genetics [Alzheimer Disease], Pilot Projects, Neurodegenerative, Medicine and Health Sciences, 2.1 Biological and endogenous factors, genetics [MicroRNAs], MIR-125B, screening and diagnosis, PLASMA, [SDV.NEU.SC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Cognitive Sciences, Detection, Real-time polymerase chain reaction, Neurological, medicine.symptom, biological markers, Biotechnology, EXPRESSION, Population, metabolism [Amyloid beta-Peptides], Asymptomatic, Salud mental, Cellular and Molecular Neuroscience, ADULT, Fluorodeoxyglucose F18, Internal medicine, Acquired Cognitive Impairment, ddc:610, Allele, lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry, diagnostic imaging [Brain], Psiquiatría, Amyloid beta-Peptides, Enfermedad de alzheimer, business.industry, [SDV.NEU.NB] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Neurobiology, Neurosciences, Alzheimer Precision Medicine Initiative, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Brain Disorders, 4.1 Discovery and preclinical testing of markers and technologies, MicroRNAs, metabolism [Brain], Alzheimer, business, Psychiatric disorders
Abstract: There is substantial experimental evidence for dysregulation of several microRNA (miRNA) expression levels in Alzheimer’s disease (AD). MiRNAs modulate critical brain intracellular signaling pathways and are associated with AD core pathophysiological mechanisms. First, we conducted a real-time quantitative PCR-based pilot study to identify a set of brain-enriched miRNAs in a monocentric cohort of cognitively normal individuals with subjective memory complaints, a condition associated with increased risk of AD. Second, we investigated the impact of age, sex, and the Apolipoprotein E ε4 (APOE ε4) allele, on the identified miRNA plasma concentrations. In addition, we explored the cross-sectional and longitudinal association of the miRNAs plasma concentrations with regional brain metabolic uptake using amyloid-β (Aβ)-positron emission tomography (Aβ-PET) and F-fluorodeoxyglucose-PET (F-FDG-PET). We identified a set of six brain-enriched miRNAs—miRNA-125b, miRNA-146a, miRNA-15b, miRNA-148a, miRNA-26b, and miRNA-100. Age, sex, and APOE ε4 allele were not associated with individual miRNA abundance. MiRNA-15b concentrations were significantly lower in the Aβ-PET-positive compared to Aβ-PET-negative individuals. Furthermore, we found a positive effect of the miRNA-15b*time interaction on regional metabolic F-FDG-PET uptake in the left hippocampus. Plasma miRNA-125b concentrations, as well as the miRNA-125b*time interaction (over a 2-year follow-up), were negatively associated with regional Aβ-PET standard uptake value ratio in the right anterior cingulate cortex. At baseline, we found a significantly negative association between plasma miRNA-125b concentrations and F-FDG-PET uptake in specific brain regions. In an asymptomatic at-risk population for AD, we show significant associations between plasma concentrations of miRNA-125b and miRNA-15b with core neuroimaging biomarkers of AD pathophysiology. Our results, coupled with existing experimental evidence, suggest a potential protective anti-Aβ effect of miRNA-15b and a biological link between miRNA-125b and Aβ-independent neurotoxic pathways., “Investissement d’Avenir” (ANR-10-AIHU-06) French program. The study was promoted in collaboration with the “CHU de Bordeaux” (coordination CIC EC7), the promoter of Memento cohort, funded by the Foundation Plan-Alzheimer. The study was further supported by AVID/Lilly. CATI is a French neuroimaging platform funded by the French Plan Alzheimer (available at http://cati-neuroimaging.com). A.V. is an employee of Eisai Inc. This work has been performed during his previous position at Sorbonne University, Paris, France. H.H. is an employee of Eisai Inc. This work has been performed during his previous position at Sorbonne University, Paris, France. At Sorbonne University he was supported by the AXA Research Fund, the “Fondation partenariale Sorbonne Université” and the “Fondation pour la Recherche sur Alzheimer
Published: 2021
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6. Sex differences in functional and molecular neuroimaging biomarkers of Alzheimer's disease in cognitively normal older adults with subjective memory complaints

Author: Cavedo, Enrica, Chiesa, Patrizia A., Houot, Marion, Ferretti, Maria Teresa, Grothe, Michel J., Teipel, Stefan J., Lista, Simone, Habert, Marie-Odile, Potier, Marie-Claude, Dubois, Bruno, Hampel, Harald, Bakardjian, Hovagim, Benali, Habib, Bertin, Hugo, Bonheur, Joel, Boukadida, Laurie, Boukerrou, Nadia, Chiesa, Patrizia, Colliot, Olivier, Dubois, Marion, Epelbaum, Stéphane, Gagliardi, Geoffroy, Genthon, Remy, Kas, Aurélie, Lamari, Foudil, Levy, Marcel, Metzinger, Christiane, Mochel, Fanny, Nyasse, Francis, Poisson, Catherine, Revillon, Marie, Santos, Antonio, Andrade, Katia Santos, Sole, Marine, Surtee, Mohmed, de Schotten, Michel Thiebaud, Vergallo, Andrea, Younsi, Nadjia, Aguilar, Lisi Flores, Babiloni, Claudio, Baldacci, Filippo, Benda, Norbert, Black, Keith L., Bokde, Arun L. W., Bonuccelli, Ubaldo, Broich, Karl, Bun, René S., Cacciola, Francesco, Castrillo, Juan, Ceravolo, Roberto, Coman, Cristina-Maria, Corvol, Jean-Christophe, Cuello, Augusto Claudio, Cummings, Jeffrey L., Depypere, Herman, Duggento, Andrea, Durrleman, Stanley, Escott-Price, Valentina, Federoff, Howard, Fiandaca, Massimo, Frank, Richard A., Garaci, Francesco, George, Nathalie, Giorgi, Filippo S., Graziani, Manuela, Haberkamp, Marion, Herholz, Karl, Karran, Eric, Kim, Seung H., Koronyo, Yosef, Koronyo-Hamaoui, Maya, Langevin, Todd, Lehéricy, Stéphane, Lorenceau, Jean, Mapstone, Mark, Neri, Christian, Nisticò, Robert, Nyasse-Messene, Francis, O'Bryant, Sid E., Perry, George, Ritchie, Craig, Rojkova, Katrine, Rossi, Simone, Saidi, Amira, Santarnecchi, Emiliano, Schneider, Lon S., Sporns, Olaf, Toschi, Nicola, Verdooner, Steven R., Villain, Nicolas, Welikovitch, Lindsay A., Woodcock, Janet, and Younesi, Erfan
Subjects: Male, 0301 basic medicine, Apolipoprotein E, Oncology, Aging, aging, Alzheimer's disease, amyloid, APOE, basal forebrain, cognitively intact older individuals, cortical thickness, FDG-PET, hippocampus, metabolism, sex, epidemiology, health policy, developmental neuroscience, neurology (clinical), geriatrics and gerontology, cellular and molecular neuroscience, psychiatry and mental health, Epidemiology, Cognitively intact older individuals, Precuneus, Hippocampus, genetics [Alzheimer Disease], physiopathology [Brain], Cohort Studies, 0302 clinical medicine, genetics [Memory Disorders], Risk Factors, Neural Pathways, Medicine, Aged, 80 and over, Sex Characteristics, Health Policy, Settore FIS/07, Neurodegeneration, Brain, Human brain, Magnetic Resonance Imaging, diagnostic imaging [Neural Pathways], Psychiatry and Mental health, metabolism [Glucose], medicine.anatomical_structure, Female, Sex, Amyloid, medicine.medical_specialty, Rest, diagnostic imaging [Memory Disorders], physiopathology [Alzheimer Disease], Cortical thickness, Basal forebrain, Diagnostic Self Evaluation, 03 medical and health sciences, Cellular and Molecular Neuroscience, Apolipoproteins E, Sex Factors, Developmental Neuroscience, Alzheimer Disease, Internal medicine, physiopathology [Memory Disorders], Humans, ddc:610, diagnostic imaging [Brain], Metabolism, Anterior cingulate cortex, metabolism [Amyloid], Aged, Memory Disorders, Resting state fMRI, business.industry, physiopathology [Neural Pathways], medicine.disease, Glucose, 030104 developmental biology, psychology [Memory Disorders], Positron-Emission Tomography, Posterior cingulate, genetics [Apolipoproteins E], Neurology (clinical), Geriatrics and Gerontology, business, diagnostic imaging [Alzheimer Disease], 030217 neurology & neurosurgery
Abstract: Observational multimodal neuroimaging studies indicate sex differences in Alzheimer's disease pathophysiological markers.Positron emission tomography brain amyloid load, neurodegeneration (hippocampus and basal forebrain volumes adjusted to total intracranial volume, cortical thickness, and 2-deoxy-2-[fluorine-18]fluoro-D-glucose-positron emission tomography metabolism), and brain resting-state functional connectivity were analyzed in 318 cognitively intact older adults from the INSIGHT-preAD cohort (female n = 201, male n = 117). A linear mixed-effects model was performed to investigate sex effects and sex∗apolipoprotein E genotype interaction on each marker as well as sex∗amyloid group interaction for non-amyloid markers.Men compared with women showed higher anterior cingulate cortex amyloid load (P = .009), glucose hypometabolism in the precuneus (P = .027), posterior cingulate (P .001) and inferior parietal (P = .043) cortices, and lower resting-state functional connectivity in the default mode network (P = .024). No brain volumetric markers showed differences between men and women. Sex∗apolipoprotein E genotype and sex∗amyloid status interactions were not significant.Our findings suggest that cognitively intact older men compared with women have higher resilience to pathophysiological processes of Alzheimer's disease.
Published: 2018
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7. Plasma tau correlates with basal forebrain atrophy rates in people at risk for alzheimer disease

Author: Cavedo, Enrica, Lista, Simone, Dubois, Bruno, Mapstone, Mark, Neri, Christian, Nistico, Robert, O'Bryant, Sid E., Palermo, Giovanni, Perry, George, Ritchie, Craig, Rossi, Simone, Saidi, Amira, Santarnecchi, Emilian, Hampel, Harald, Schneider, Lon S., Sporns, Olaf, Toschi, Nicola, Verdooner, Steven R., Vergallo, Andrea, Villain, Nicolas, Welikovitch, Lindsay A., Woodcock, Janet, Younesi, Erfan, Group, INSIGHT-preAD Study, Alzheimer Precision Medicine Initiative, Bakardjian, Hovagim, Benali, Habib, Bertin, Hugo, Bonheur, Joel, Boukadida, Laurie, Houot, Marion, Chiesa, Patrizia, Colliot, Olivier, Dubois, Marion, Epelbaum, Stéphane, Gagliardi, Geoffroy, Genthon, Remy, Habert, Marie-Odile, Hampe, Harald, Kas, Auréli, Lamari, Foudil, Levy, Marcel, Metzinger, Christiane, Mochel, Fanny, Nyasse, Francis, Poisson, Catherine, Potier, Marie-Claude, Revillon, Marie, Grothe, Michel J, Santos, Antonio, Andrade, Katia Santos, Sole, Marine, Thiebaud de Schotten, Michel, Andrea, Vergallo, Nadjia, Yonsi, Afshar, Mohammad, Aguilar, Lisi Flores, Akman-Anderson, Leyla, Teipel, Stefan, Arenas, Joaquín, Avila, Jesus, Babiloni, Claudio, Baldacci, Filippo, Batrla, Richard, Benda, Norbert, Black, Keith L., Bokde, Arun L. W., Bonuccelli, Ubaldo, Broich, Karl, Zetterberg, Henrik, Caccilola, Francesco, Caraci, Filippo, Castrillo, Juan, Ceravolo, Roberto, Chiesa, Patrizia A., Corvol, Jean-Christophe, Cuello, Augusto Claudio, Cummings, Jeffrey L., Depypere, Herman, Blennow, Kaj, Duggent, Andrea, Emanuele, Enzo, Escott-Price, Valentina, Federoff, Howard, Ferretti, Maria Teresa, Fiandaca, Massimo, Frank, Richard A., Garaci, Francesco, Geerts, Hugo, Giorgi, Filippo S., Goetzl, Edward J., Graziani, Manuela, Haberkamp, Marion, Herholz, Karl, Hernandez, Felix, Kapogiannis, Dimitrios, Karran, Eric, Potier, Marie C, Kidddle, Stephen J, Kim, Seung H., Koronyo, Yosef, Koronyo-Hamaoui, Maya, Langevin, Todd, Lehericy, Stéphane, Lucia, Alejandro, Lorenceau, Jean, and Mango, Dalila
Subjects: 0301 basic medicine, Apolipoprotein E, Male, blood [Neurofilament Proteins], Cohort Studies, pathology [Alzheimer Disease], 0302 clinical medicine, pathology [Prosencephalon], Neurofilament Proteins, blood [Amyloid beta-Peptides], Basal forebrain, pathology [Parasympathetic Nervous System], Magnetic Resonance Imaging, Predictive value of tests, Cohort, Female, Alzheimer's disease, Cohort study, blood [tau Proteins], medicine.medical_specialty, tau Proteins, 03 medical and health sciences, aged, alzheimer disease, amyloid beta-peptides, apolipoproteins e, atrophy, biomarkers, cohort studies, female, humans, magnetic resonance imaging, male, neurofilament proteins, parasympathetic nervous system, positron-emission tomography, predictive value of tests, prosencephalon, tau proteins, Atrophy, blood [Alzheimer Disease], Apolipoproteins E, Prosencephalon, Alzheimer Disease, Parasympathetic Nervous System, Predictive Value of Tests, Internal medicine, medicine, Dementia, Humans, ddc:610, Aged, Amyloid beta-Peptides, business.industry, diagnostic imaging [Prosencephalon], medicine.disease, 030104 developmental biology, Endocrinology, Positron-Emission Tomography, genetics [Apolipoproteins E], Neurology (clinical), business, diagnostic imaging [Alzheimer Disease], 030217 neurology & neurosurgery, Biomarkers
Abstract: ObjectiveTo investigate whether baseline concentrations of plasma total tau (t-tau) and neurofilament light (NfL) chain proteins are associated with annual percent change (APC) of the basal forebrain cholinergic system (BFCS) in cognitively intact older adults at risk for Alzheimer disease (AD).MethodsThis was a large-scale study of 276 cognitively intact older adults from the monocentric INSIGHT-preAD (Investigation of Alzheimer's Predictors in Subjective Memory Complainers) cohort. Participants underwent baseline assessment of plasma t-tau and NfL concentrations as well as baseline and 24-month follow-up MRI scans. Linear models with and without influential observations (calculated using the Cook distance) were carried out to investigate the effect of plasma NfL and t-tau concentrations, and their interaction effect with β-amyloid status and APOE genotype, on the APC of the whole BFCS and its anterior (Ch1/2) and posterior (Ch4) subdivisions separately.ResultsHigher plasma t-tau concentrations at baseline were associated with higher BFCS rate of atrophy (model without influencers: n = 251, F value = 4.6815; p value = 0.031). Subregional analyses showed similar results for both the APC of the Ch1/2 (model without influencers: n = 256, F value = 3.9535, p corrected = 0.047) and Ch4 BFCS sectors (model without influencers: n = 253, F value = 4.9090, p corrected = 0.047). Baseline NfL, β-amyloid load, and APOE ε4 carrier status did not affect APC of the BFCS.ConclusionIncreased concentrations of baseline plasma t-tau may predict in vivo structural BFCS atrophy progression in older adults at risk for AD, independently of β-amyloid status and APOE genotype.
Published: 2020
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8. Low Cognitive Awareness, but Not Complaint, is a Good Marker of Preclinical Alzheimer's Disease

Author: Cacciamani, Federica, Tandetnik, Caroline, Gagliardi, Geoffroy, Bertin, Hugo, Habert, Marie-Odile, Hampel, Harald, Boukadida, Laurie, Révillon, Marie, Epelbaum, Stéphane, Dubois, Bruno, Audrain, C, Auffret, A, Bakardjian, H, Baldacci, F, Batrancourt, B, Benakki, I, Benali, H, Bertin, H, Bertrand, A, Boukadida, L, Cacciamani, F, Causse, V, Cavedo, E, Cherif Touil, S, Chiesa, P A, Colliot, O, Dalla Barba, G, Depaulis, M, Dos Santos, A, Dubois, B, Dubois, M, Epelbaum, S, Fontaine, B, Francisque, H, Gagliardi, G, Genin, A, Genthon, R, Glasman, P, Gombert, F, Habert, M O, Hampel, H, Hewa, H, Houot, M, Jungalee, N, Kas, A, Kilani, M, La Corte, V, Le Roy, F, Lehericy, S, Letondor, C, Levy, M, Lista, S, Lowrey, M, Ly, J, Makiese, O, Masetti, I, Mendes, A, Metzinger, C, Michon, A, Mochel, F, Nait Arab, R, Nyasse, F, Perrin, C, Poirier, F, Poisson, C, Potier, M C, Ratovohery, S, Revillon, M, Rojkova, K, Santos-Andrade, K, Schindler, R, Servera, M C, Seux, L, Simon, V, Skovronsky, D, Thiebaut, M, Uspenskaya, O, Vlaincu, M, Institut de la Mémoire et de la Maladie d'Alzheimer [CHU Pitié-Salpétriêre] (IM2A), Université Pierre et Marie Curie - Paris 6 (UPMC)-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), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute (ICM), Université Pierre et Marie Curie - Paris 6 (UPMC)-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)-Centre National de la Recherche Scientifique (CNRS), Institut de Mécanique et d'Ingénierie de Bordeaux (I2M), Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB)-École Nationale Supérieure d'Arts et Métiers (ENSAM), Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS), Algorithms, models and methods for images and signals of the human brain (ARAMIS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute (ICM), 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)-Université Pierre et Marie Curie - Paris 6 (UPMC)-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)-Centre National de la Recherche Scientifique (CNRS)-Inria de Paris, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), Institut de la Mémoire et de la Maladie d'Alzheimer [Paris] (IM2A), Université Pierre et Marie Curie - Paris 6 (UPMC), Service de Neuroradiologie [CHU Pitié-Salpêtrière], École Nationale Supérieure d'Arts et Métiers (ENSAM), HESAM Université (HESAM)-HESAM Université (HESAM)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB)-Institut National de la Recherche Agronomique (INRA), Service de médecine nucléaire [CHU Pitié-Salpétrière], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Inria de Paris, Service d'Explorations Fonctionnelles Neurologie [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Pitié-Salpêtrière [APHP], Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Pitié-Salpêtrière [APHP], HESAM Université (HESAM)-HESAM Université (HESAM)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Pitié-Salpêtrière [APHP]-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Pitié-Salpêtrière [APHP]-Inria de Paris, Cacciamani, Federica, Tandetnik, Caroline, Gagliardi, Geoffroy, Bertin, Hugo, Habert, Marie-Odile, Hampel, Harald, Boukadida, Laurie, Révillon, Marie, Epelbaum, Stéphane, Dubois, Bruno, Audrain, C, Auffret, A, Bakardjian, H, Baldacci, F, Batrancourt, B, Benakki, I, Benali, H, Bertin, H, Bertrand, A, Boukadida, L, Cacciamani, F, Causse, V, Cavedo, E, Cherif Touil, S, Chiesa, P A, Colliot, O, Dalla Barba, G, Depaulis, M, Dos Santos, A, Dubois, B, Dubois, M, Epelbaum, S, Fontaine, B, Francisque, H, Gagliardi, G, Genin, A, Genthon, R, Glasman, P, Gombert, F, Habert, M O, Hampel, H, Hewa, H, Houot, M, Jungalee, N, Kas, A, Kilani, M, La Corte, V, Le Roy, F, Lehericy, S, Letondor, C, Levy, M, Lista, S, Lowrey, M, Ly, J, Makiese, O, Masetti, I, Mendes, A, Metzinger, C, Michon, A, Mochel, F, Nait Arab, R, Nyasse, F, Perrin, C, Poirier, F, Poisson, C, Potier, M C, Ratovohery, S, Revillon, M, Rojkova, K, Santos-Andrade, K, Schindler, R, Servera, M C, Seux, L, Simon, V, Skovronsky, D, Thiebaut, M, Uspenskaya, O, Vlaincu, M, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Centre National de la Recherche Scientifique (CNRS), Service de Médecine nucléaire [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Centre National de la Recherche Scientifique (CNRS)-Inria de Paris
Subjects: Male, Ethylene Glycol, [SDV]Life Sciences [q-bio], awarene, Neuropsychological Tests, Alzheimer’s disease, awareness, biomarkers, cognitive complaints, subjective cognitive decline, Aged, Aged, 80 and over, Alzheimer Disease, Analysis of Variance, Aniline Compounds, Brain, Brain Mapping, Cognitive Dysfunction, Ethylene Glycols, Female, Functional Laterality, Humans, Positron-Emission Tomography, Psychiatric Status Rating Scales, Surveys and Questionnaires, Awareness, cognitive complaint, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, 80 and over, Surveys and Questionnaire, Aniline Compound, Psychiatric Status Rating Scale, Alzheimer's disease, Clinical Psychology, Psychiatry and Mental Health, biomarker, Neuropsychological Test, Geriatrics and Gerontology, Human
Abstract: International audience; Background:Subjective cognitive decline (SCD) may result from many conditions, including Alzheimer’s disease (AD). Objective:In this study, we searched for a specific pattern of SCD in asymptomatic individuals at risk for AD. Methods:Cognitively normal older adults (N = 318) reporting SCD and their informants were enrolled in the INSIGHT-PreAD cohort. We examined the relationship between six SCD measures and both cognitive scores and AD neuroimaging markers (amyloid burden, hippocampal atrophy and brain hypometabolism). An awareness of cognitive decline index (ACDI) has been introduced based on the subject-informant discrepancy in a questionnaire of SCD and participants with low versus high awareness were compared. Results:Scores in the INSIGHT-PreAD SCD questionnaires did not correlate with AD neuroimaging markers. As well, no correlation has been found between SCD measures and cognitive scores. Comparing subjects with a low (n = 19) and high (n = 86) level of awareness, no significant difference in terms of demography, neuropsychiatric symptoms, autonomy, quality of life, cognition, and hippocampal volume was found. However, the “low awareness” group showed greater amyloid burden and lower cortical metabolism, compared to the “high awareness” group. Conclusion:This study provided additional evidence that reporting SCD by itself is not a specific symptom of preclinical AD. Conversely, a low cognitive awareness (namely, when subjects report fewer difficulties than their relatives do) may represent a very early form of anosognosia and serve as a specific indicator of preclinical AD. This finding is of key importance as an enrichment factor to consider in both clinical practice and research trials.
Published: 2017
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9. Parietal involvement in the semantic variant of primary progressive aphasia with Alzheimer's disease CSF profile

Author: Bera, Géraldine, Migliaccio, Raffaella, Michelin, Thibaut, Lamari, Foudil, Ferrieux, Sophie, Nogues, Marie, Bertin, Hugo, Habert, Marie Odile, Dubois, Bruno, Teichmann, Marc, Kas, Aurélie, Service de médecine nucléaire [CHU Pitié-Salpétrière], 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), 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), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Pitié-Salpêtrière [AP-HP], Institut de la Mémoire et de la Maladie d'Alzheimer [Paris] (IM2A), Sorbonne Université (SU), Service de Biochimie Métabolique [CHU Pitié-Salpêtrière], Laboratoire d'Imagerie Biomédicale (LIB), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC), and Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Subjects: cerebrospinal fluid examination, [SDV]Life Sciences [q-bio], parietal lobe, semantic variant of primary progressive aphasia, [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], atypical AD, Alzheimer’s disease, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, single photon emission computed tomography
Abstract: International audience; Semantic variant of primary progressive aphasia (svPPA) is typically associated with non-Alzheimer’s disease (AD) pathology. However, some anatomopathological studies have found AD lesions in those patients. We compared brain perfusion SPECT of 18 svPPA patients with cerebrospinal fluid (CSF) biomarkers indicative of non-AD pathology (svPPA-nonAD) and three svPPA patients with CSF biomarkers indicative of underlying AD (svPPA-AD). All svPPA patients had severe left temporopolar hypoperfusion. SvPPA-nonAD had additional anterior cingulate and mediofrontal hypoperfusion, whereas svPPA-AD had greater left parietal and posterior cingulate involvement. Parietal damage in svPPA constitutes a biomarker for underlying Alzheimer pathology thus refining the classification of this PPA variant.
Published: 2018
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10. Neural correlates of episodic memory in the Memento cohort

Author: Epelbaum, Stéphane, Bouteloup, Vincent, Mangin, Jean, La Corte, Valentina, Migliaccio, Raffaela, Bertin, Hugo, Habert, Marie O., Fischer, Clara, Azouani, Chabha, Fillon, Ludovic, Chupin, Marie, Vellas, Bruno, Pasquier, Florence, Dartigues, Jean, Blanc, Frédéric, Gabelle, Audrey, Ceccaldi, Mathieu, Krolak-Salmon, Pierre, Hugon, Jacques, Hanon, Olivier, Rouaud, Olivier, David, Renaud, Chêne, Geneviève, Dubois, Bruno, Dufouil, Carole, Service de Neurologie [CHU Pitié-Salpêtrière], IFR70-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), 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], 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), Institut de la Mémoire et de la Maladie d'Alzheimer [Paris] (IM2A), Sorbonne Université (SU), Sorbonne Université - Faculté de Médecine (SU FM), Algorithms, models and methods for images and signals of the human brain (ARAMIS), Sorbonne Université (SU)-Inria de Paris, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute (ICM), 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)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Santé Publique, d'Epidémiologie et de Développement (ISPED), Université Bordeaux Segalen - Bordeaux 2, Bordeaux population health (BPH), Université de Bordeaux (UB)-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Bordeaux [Bordeaux], CATI Multicenter Neuroimaging Platform (CATI), Service NEUROSPIN (NEUROSPIN), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Université Paris Descartes – Institut de psychologie (UPD5 Psychologie), Université Paris Descartes - Paris 5 (UPD5), Institut de psychiatrie et neurosciences (U894 / UMS 1266), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université Sorbonne Paris Cité (USPC), Laboratoire d'Imagerie Biomédicale (LIB), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Epidémiologie et analyses en santé publique : risques, maladies chroniques et handicaps (LEASP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Toulouse [Toulouse], Université de Lille, Les Hôpitaux Universitaires de Strasbourg (HUS), Département de neurologie [Montpellier], Hôpital Gui de Chauliac [Montpellier]-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Université Montpellier 1 (UM1)-Université de Montpellier (UM), Hôpital Gui de Chauliac, Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Cellules Souches, Plasticité Cellulaire, Médecine Régénératrice et Immunothérapies (IRMB), Université de Montpellier (UM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Service de neurologie et de neuropsychologie, Université de la Méditerranée - Aix-Marseille 2-Assistance Publique - Hôpitaux de Marseille (APHM)- Hôpital de la Timone [CHU - APHM] (TIMONE), Institut de Neurosciences des Systèmes (INS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Aix Marseille Université (AMU), Hôpital de la Timone [CHU - APHM] (TIMONE), Hôpital des Charpennes [CHU - HCL], Hospices Civils de Lyon (HCL), Groupe Hospitalier Saint Louis - Lariboisière - Fernand Widal [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Université Paris Diderot - Paris 7 (UPD7), AP-HP - Hôpital Cochin Broca Hôtel Dieu [Paris], Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Centre Mémoire de Ressources et de Recherche [Nice] (CMRR Nice), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre Hospitalier Universitaire de Nice (CHU Nice)-Université Côte d'Azur (UCA), Service de neurologie 1 [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-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)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), 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 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)-Centre National de la Recherche Scientifique (CNRS), Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Gui de Chauliac [Montpellier]-Université de Montpellier (UM), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), 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 National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Institut du Cerveau = Paris Brain Institute (ICM), 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)-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)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre de Psychiatrie et Neurosciences (U894), Laboratoire d'Imagerie Biomédicale [Paris] (LIB), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Gui de Chauliac [CHU Montpellier], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Université de Montpellier (UM), Hôpital Gui de Chauliac [CHU Montpellier], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université Nice Sophia Antipolis (1965 - 2019) (UNS), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de la Mémoire et de la Maladie d'Alzheimer [CHU Pitié-Salpétriêre] (IM2A), and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP]
Subjects: Multicenter cohort, Memory, Quantitative Biology - Neurons and Cognition, FOS: Biological sciences, [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], Neurons and Cognition (q-bio.NC), Featured Article, Alzheimer's disease, Fluorodeoxyglucose-PET, MRI
Abstract: Introduction The free and cued selective reminding test is used to identify memory deficits in mild cognitive impairment and demented patients. It allows assessing three processes: encoding, storage, and recollection of verbal episodic memory. Methods We investigated the neural correlates of these three memory processes in a large cohort study. The Memento cohort enrolled 2323 outpatients presenting either with subjective cognitive decline or mild cognitive impairment who underwent cognitive, structural MRI and, for a subset, fluorodeoxyglucose–positron emission tomography evaluations. Results Encoding was associated with a network including parietal and temporal cortices; storage was mainly associated with entorhinal and parahippocampal regions, bilaterally; retrieval was associated with a widespread network encompassing frontal regions. Discussion The neural correlates of episodic memory processes can be assessed in large and standardized cohorts of patients at risk for Alzheimer's disease. Their relation to pathophysiological markers of Alzheimer's disease remains to be studied., Highlights • This is the largest cohort ever to be used in the study of the morpho-metabolic correlates of episodic memory in human, ensuring the validity of the obtained results. • We found that encoding of information is linked to a posterior network previously evidenced to support working memory. • The storage process was mainly supported in our study by medial temporal regions. • Spontaneous retrieval of stimuli implicated broad neural networks including the frontal regions. • These associations were particularly strong in APOE ε4 carriers suggesting that the free and selective reminding test is useful to detect Alzheimer's disease at an early stage.
Published: 2018
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11. Cognitive and imaging markers in non-demented subjects attending a memory clinic: study design and baseline findings of the MEMENTO cohort

Author: Dufouil , Carole, Dubois , Bruno, Vellas , Bruno, Pasquier , Florence, Blanc , Frédéric, Hugon , Hugo, Hanon , Olivier, Dartigues , Jean-François, Harston , Sandrine, Gabelle , Audrey, Ceccaldi , Mathieu, Beauchet , Olivier, Krolak-Salmon , Pierre, David , David, Rouaud , Olivier, Godefroy , Olivier, Belin , Catherine, Rouch , Isabelle, Auguste , Nicolas, Wallon , David, Benetos , Athanase, Pariente , Jeremie, Paccalin , Marc, Moreaud , Olivier, Hommet , Caroline, Sellal , François, Boutoleau-Bretonnière , Claire, Jalenques , Isabelle, Gentric , Armelle, Vandel , Pierre, Azouani , Chabha, Fillon , Ludovic, Fischer , Clara, Savarieau , Helen, Operto , Grégory, Bertin , Hugo, Chupin , Marie, Bouteloup , Vincent, Habert , Marie-Odile, Mangin , Jean-François, Chêne , Geneviève, Institut de Santé Publique, d'Epidémiologie et de Développement (ISPED), Université Bordeaux Segalen - Bordeaux 2, 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 [APHP]-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Epidémiologie et analyses en santé publique : risques, maladies chroniques et handicaps (LEASP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM), Hématopoïèse normale et pathologique, Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut Gustave Roussy (IGR)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de physique de la matière condensée (LPMC), Université Nice Sophia Antipolis (... - 2019) (UNS), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Groupe Hospitalier Saint Louis - Lariboisière - Fernand Widal [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), Groupe hospitalier Broca, CHU Bordeaux [Bordeaux], Département de neurologie [Montpellier], Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Gui de Chauliac [Montpellier]-Université de Montpellier (UM), Service de neurologie et de neuropsychologie, Université de la Méditerranée - Aix-Marseille 2-Assistance Publique - Hôpitaux de Marseille (APHM)- Hôpital de la Timone [CHU - APHM] (TIMONE), Laboratoire de Psychologie des Pays de la Loire (LPPL), Université d'Angers (UA)-Université de Nantes - UFR Lettres et Langages (UFRLL), Université de Nantes (UN)-Université de Nantes (UN), Hospices Civils de Lyon (HCL), Centre Mémoire de Ressources et de Recherche [Nice] (CMRR Nice), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre Hospitalier Universitaire de Nice (CHU Nice), Laboratoire de génie des procédés - environnement - agroalimentaire (GEPEA), Mines Nantes (Mines Nantes)-Université de Nantes - Faculté des Sciences et des Techniques, Université de Nantes (UN)-Université de Nantes (UN)-Ecole Nationale Vétérinaire, Agroalimentaire et de l'alimentation Nantes-Atlantique (ONIRIS)-Centre National de la Recherche Scientifique (CNRS), CHU Amiens-Picardie, Système Nerveux Autonome - Epidémiologie, Physiologie, Ingénierie, Santé (SNA-EPIS), Université Jean Monnet [Saint-Étienne] (UJM)-Centre Hospitalier Universitaire de Saint-Etienne, Centre Hospitalier Universitaire de Saint-Etienne (CHU de Saint-Etienne), CHU Rouen, Normandie Université (NU), Défaillance Cardiovasculaire Aiguë et Chronique (DCAC), Université de Lorraine (UL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Toulouse Neuro Imaging Center (ToNIC), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Hôpital Purpan [Toulouse], CHU Toulouse [Toulouse]-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre hospitalier universitaire de Poitiers (CHU Poitiers), Laboratoire de Psychologie et NeuroCognition (LPNC), Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Imagerie et cerveau, Université de Tours-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de Neurologie [Strasbourg], CHU Strasbourg-Hopital Civil, Service de neurologie [Nantes], Université de Nantes (UN)-Centre hospitalier universitaire de Nantes (CHU Nantes)-Hôpital Guillaume-et-René-Laennec [Saint-Herblain], Neuro-Psycho Pharmacologie des Systèmes Dopimanégiques sous-corticaux - Clermont Auvergne (NPsy-Sydo), CHU Clermont-Ferrand-Université Clermont Auvergne (UCA), Centre Hospitalier Régional Universitaire [Besançon] (CHRU Besançon), CATI Multicenter Neuroimaging Platform (CATI), Bordeaux population health (BPH), Université de Bordeaux (UB)-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service NEUROSPIN (NEUROSPIN), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire d'Imagerie Biomédicale (LIB), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Algorithms, models and methods for images and signals of the human brain (ARAMIS), Sorbonne Université (SU)-Inria de Paris, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-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 [APHP]-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [APHP]-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Neuroimagerie Assistée par Ordinateur (LNAO), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Université de Bordeaux (UB), Pôle de Santé publique [CHU Bordeaux], CHU de bordeaux, Université Pierre et Marie Curie - Paris 6 (UPMC)-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)-Centre National de la Recherche Scientifique (CNRS), Fédération des Centres Mémoire de Ressource et de Recherche du Sud de la France [CHU Toulouse] (F-CMRR-SF), Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), Troubles cognitifs dégénératifs et vasculaires - U 1171 (TCDV), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Centre Mémoire de Ressources et de Recherche [Lille-Bailleul] (CMRR), Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)-Hôpital Roger Salengro [Lille], Centre Mémoire de Ressources et de Recherches [Bordeaux], Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Centre de Mémoire de Ressources et de Recherche [Paris Nord], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Diderot - Paris 7 (UPD7)-Groupe Hospitalier Saint Louis - Lariboisière - Fernand Widal [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Université Sorbonne Paris Cité (USPC), Maladie d'Alzheimer : marqueurs génétiques et vasculaires, neuropsychologies (EA 4468), Université Paris Descartes - Paris 5 (UPD5)-Groupe hospitalier Broca, Centre de Mémoire de Ressources et de Recherche [Paris Broca], AP-HP - Hôpital Broca [Paris], Centre de Mémoire de Ressources et de Recherche [Hôpital Pellegrin, Bordeaux], CHU Bordeaux [Bordeaux]-Groupe hospitalier Pellegrin [Bordeaux], Centre de Mémoire de Ressources et de Recherche [Hôpital Xavier Arnozan, Bordeaux], Hôpital Xavier Arnozan - CHU de Bordeaux, Centres Mémoire de Ressources et de Recherche [Hôpital Gui de Chauliac, Montpellier] (CMRR), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Gui de Chauliac, Centre de Mémoire de Ressources et de Recherche [Hôpital La Timone, Marseille], Hôpital de la Timone [CHU - APHM] (TIMONE)-CHU Marseille, Centre Mémoire de Ressources et de Recherche [CHU Angers], Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM), Centre Mémoire de Ressources et de Recherche [Lyon] (CMRR), Hospices Civils de Lyon (HCL)-Hôpital des Charpennes [CHU - HCL], Cognition Behaviour Technology (CobTek), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre Hospitalier Universitaire de Nice (CHU Nice)-Institut Claude Pompidou [Nice] (ICP - Nice)-Université Côte d'Azur (UCA), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre Hospitalier Universitaire de Nice (CHU Nice)-Université Côte d'Azur (UCA), Centre Mémoire Ressources et Recherche [Dijon] (CMRR Dijon), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Centre Mémoire de Ressources et de Recherche [CHU Amiens], Clinique de la Mémoire [Hôpitaux Universitaires Paris-Seine-Saint-Denis], Hôpital Avicenne [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre Mémoire de Ressources et de Recherche [CHU de Saint-Etienne Hôpital Nord], CHU de Saint-Étienne Hôpital Nord [Saint Etienne], Centre Mémoire de Ressources et de Recherche [CHU de Saint-Etienne Hôpital de la Charité], CHU de Saint-Étienne Hôpital la Charite, Service de neurologie [Rouen], Normandie Université (NU)-Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Centre Mémoire de Ressources et de Recherche [CHU de Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Centre Mémoire [CHU de Toulouse], Centre Mémoire de Ressources et de Recherche [CHRU de Poitiers La Miletrie], CHRU de Poitiers La Miletrie [Poitiers], Centre Mémoire de Ressources et de Recherche [CHU Grenoble Alpes-Site NORD, La Tronche], CHU Grenoble Alpes - Site NORD [La Tronche], Centre Mémoire de Ressources et de Recherche [CHRU de Tours Hôpital Bretonneau], Centre Hospitalier Régional Universitaire de Tours (CHRU Tours)-Hôpital Bretonneau [Tours], Mécanismes Centraux et Périphériques de la Neurodégénérescence, Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Mémoire de Ressources et de Recherche [Hôpitaux Civils de Colmar, Strasbourg], Hôpitaux Civils de Colmar, Centre Mémoire de Ressources et de Recherche [CHU de Nantes], Centre hospitalier universitaire de Nantes (CHU Nantes), Centre Mémoire de Ressources et de Recherche [CHU Clermont-Ferrand] (CMRR), CHU Gabriel Montpied [Clermont-Ferrand], CHU Clermont-Ferrand-CHU Clermont-Ferrand, Centre Mémoire de Ressources et de Recherche [CHRU de Brest], Centre Hospitalier Régional Universitaire de Brest (CHRU Brest), Centre Mémoire de Ressources et de Recherche [CHRU de Besançon] (CMRR), Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon)-Hôpital Saint-Jacques [CHRU de Besançon], Centre pour l’Acquisition et le Traitement des Images [Saclay] (CATI), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut d'imagerie biomédicale (I²BM), Sorbonne Université (SU), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Saclay, The MEMENTO cohort was sponsored by the Fondation Plan Alzheimer (Alzheimer Plan 2008–2012). This work was also supported by the following : CIC 1401-EC, Bordeaux University Hospital, Inserm and the University of Bordeaux., on behalf of the MEMENTO cohort Study Group, BMC, BMC, Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Gui de Chauliac [CHU Montpellier], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Centre Mémoire de Ressources et de Recherche [CHU de Saint-Etienne] (CMRR 42), Centre Hospitalier Universitaire de Saint-Etienne [CHU Saint-Etienne] (CHU ST-E)-Université Jean Monnet - Saint-Étienne (UJM), Laboratoire d'Imagerie Biomédicale [Paris] (LIB), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Université Paris-Sud - Paris 11 (UP11)-Institut Gustave Roussy (IGR)-Institut National de la Santé et de la Recherche Médicale (INSERM), COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS), Université Côte d'Azur (UCA)-Centre Hospitalier Universitaire de Nice (CHU Nice)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA), Mines Nantes (Mines Nantes)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM)-Hôpital Purpan [Toulouse], CHU Toulouse [Toulouse]-CHU Toulouse [Toulouse], Laboratoire de Psychologie et NeuroCognition (LPNC ), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Imagerie et cerveau (iBrain - Inserm U1253 - UNIV Tours ), Neuro-Psycho Pharmacologie des Systèmes Dopimanégiques sous-corticaux (NPsy-Sydo), CHU Clermont-Ferrand-Université Clermont Auvergne [2017-2020] (UCA [2017-2020]), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut d'imagerie biomédicale (I²BM), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Centre National de la Recherche Scientifique (CNRS), Centre hospitalier universitaire de Toulouse - CHU Toulouse-Hôpital La Grave-Casselardit [Toulouse], Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Diderot - Paris 7 (UPD7), Hôpital Gui de Chauliac-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Hôpital des Charpennes [CHU - HCL], Hospices Civils de Lyon (HCL)-Hospices Civils de Lyon (HCL), Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre Hospitalier Universitaire de Nice (CHU Nice)-Institut Claude Pompidou [Nice] (ICP - Nice), Centre Mémoire de Ressources et de Recherche [CHU de Toulouse, Hôpital Purpan], Hôpital Purpan [Toulouse], Hôpital Bretonneau [Tours]-Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), INSERM Unit 708-Neuroepidemiology, Paris, France, Institut de la Mémoire et de la Maladie d'Alzheimer [Paris] ( IM2A ), Université Pierre et Marie Curie - Paris 6 ( UPMC ), Epidémiologie et anlyses en santé publique: risques, maladies chroniques et handicaps, Université Paul Sabatier - Toulouse 3 ( UPS ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Service de Neurologie [Lille], Hôpital Roger Salengro-Centre Hospitalier Régional Universitaire [Lille] ( CHRU Lille ), Kalray, Service de gériatrie, Assistance publique - Hôpitaux de Paris (AP-HP)-Université Paris Descartes - Paris 5 ( UPD5 ) -AP-HP - Hôpital Cochin Broca Hôtel Dieu [Paris], Epidémiologie, santé publique et développement, Université Bordeaux Segalen - Bordeaux 2-Institut National de la Santé et de la Recherche Médicale ( INSERM ) -IFR99-ISPED, Institut de recherche en biothérapie ( IRB ), Université Montpellier 1 ( UM1 ) -Centre Hospitalier Régional Universitaire [Montpellier] ( CHRU Montpellier ) -Université de Montpellier ( UM ), Université de la Méditerranée - Aix-Marseille 2-Assistance Publique - Hôpitaux de Marseille ( APHM ) - Hôpital de la Timone [CHU - APHM] ( TIMONE ), Département de Médecine Interne et Gérontologie clinique, CHU Angers, Centre de recherche en neurosciences de Lyon ( CRNL ), Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Université Jean Monnet [Saint-Étienne] ( UJM ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de génie des procédés - environnement - agroalimentaire ( GEPEA ), Centre National de la Recherche Scientifique ( CNRS ) -Université de Nantes ( UN ) -IMT Atlantique Bretagne-Pays de la Loire ( IMT Atlantique ) -Université Bretagne Loire ( UBL ) -Ecole Nationale Vétérinaire, Agroalimentaire et de l'alimentation Nantes-Atlantique ( ONIRIS ), Laboratoire de Neurosciences Fonctionnelles et Pathologies ( LNFP ), Université de Lille, Droit et Santé-Centre National de la Recherche Scientifique ( CNRS ), AP-HP Hôpital Avicenne [Bobigny], Centre Hospitalier Universitaire de Saint-Etienne ( CHU de Saint-Etienne ), Risque cardiovasculaire, rigidité-fibrose et hypercoagulabilité ( RCV ), Université Henri Poincaré - Nancy 1 ( UHP ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Imagerie cérébrale et handicaps neurologiques, Centre Mémoire de Ressources et de Recherche ( CM2R ), CHU de Poitiers-Hôpital Jean Bernard, Unité de Neuropsychologie, CHU Grenoble, Université de Tours-Institut National de la Santé et de la Recherche Médicale ( INSERM ), Université de Nantes ( UN ) -Centre hospitalier universitaire de Nantes ( CHU Nantes ) -Hôpital Nord Laënnec, Neuro-Psycho Pharmacologie des Systèmes Dopimanégiques sous-corticaux - Clermont Auvergne ( NPsy-Sydo ), CHU Clermont-Ferrand-Université Clermont Auvergne ( UCA ), Service de Médecine Interne Gériatrique ( BREST - SMIG ), Centre Hospitalier Régional Universitaire de Brest ( CHRU Brest ), Cognition, Action, et Plasticité Sensorimotrice [Dijon - U1093] ( CAPS ), Université de Bourgogne ( UB ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Centre d'Acquisition et de Traitement des Images [Paris], Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), Service NEUROSPIN ( NEUROSPIN ), Direction de Recherche Fondamentale (CEA) ( DRF (CEA) ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Université Paris-Saclay, Bordeaux population health ( BPH ), Université de Bordeaux ( UB ) -Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale ( INSERM ), Laboratoire Jacques-Louis Lions ( LJLL ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), Epidemiologie-Biostatistique [Bordeaux], Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Université de Bordeaux Ségalen [Bordeaux 2], Service de médecine nucléaire [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP)-CHU Pitié-Salpêtrière [APHP], Laboratoire de Neuroimagerie Assistée par Ordinateur ( LNAO ), Epidémiologie et Biostatistique [Bordeaux], Université Bordeaux Segalen - Bordeaux 2-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale ( INSERM ), Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Université de Bordeaux (UB), Sorbonne Université-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace, Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Strasbourg (UNISTRA), COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-Centre Hospitalier Universitaire de Nice (CHU Nice)-Institut Claude Pompidou [Nice] (ICP - Nice), Centre Hospitalier Régional Universitaire de Tours (CHRU TOURS)-Hôpital Bretonneau [Tours], Centre Mémoire de Ressources et de Recherche [CHU de Clermont-Ferrand], CHU Clermont-Ferrand, Centre Mémoire de Ressources et de Recherche [CHRU de Besançon], Centre Hospitalier Régional Universitaire [Besançon] (CHRU Besançon)-Hôpital Jean Minjoz-Hôpital Saint-Jacques [CHRU de Besançon], Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Service NEUROSPIN (NEUROSPIN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut d'imagerie biomédicale (I²BM), Sorbonne Université, Sorbonne Université-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-Centre Hospitalier Universitaire de Nice (CHU Nice)-Université Côte d'Azur (UCA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut d'imagerie biomédicale (I²BM), Troubles cognitifs dégénératifs et vasculaires - U 1171 - EA 1046 (TCDV), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille, Droit et Santé-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et nanosciences d'Alsace, Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Université de Strasbourg (UNISTRA)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Université de Strasbourg (UNISTRA), Groupe hospitalier Pellegrin [Bordeaux] -CHU Bordeaux [Bordeaux], COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-Centre Hospitalier Universitaire de Nice (CHU Nice)-Institut Claude Pompidou [Nice] (ICP - Nice)-Université Côte d'Azur (UCA), CHU Lille, CNRS, Inserm, Université de Lille, Troubles cognitifs dégénératifs et vasculaires - U1171, Troubles cognitifs dégénératifs et vasculaires - U 1171 [TCDV], Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute ( ICM ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -CHU Pitié-Salpêtrière [APHP]-Centre National de la Recherche Scientifique ( CNRS ), Fédération des Centres Mémoire de Ressource et de Recherche du Sud de la France [CHU Toulouse] ( F-CMRR-SF ), Troubles cognitifs dégénératifs et vasculaires ( DN2M ), Université de Lille-Centre Hospitalier Régional Universitaire [Lille] ( CHRU Lille ) -INSERM, Centre Mémoire de Ressources et de Recherche [Lille-Bailleul] ( CMRR ), Centre Hospitalier Régional Universitaire [Lille] ( CHRU Lille ) -Hôpital Roger Salengro [Lille], Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie ( ICube ), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg ( ENGEES ) -Université de Strasbourg ( UNISTRA ) -Institut National des Sciences Appliquées - Strasbourg ( INSA Strasbourg ), Institut National des Sciences Appliquées ( INSA ) -Institut National des Sciences Appliquées ( INSA ) -Centre National de la Recherche Scientifique ( CNRS ) -Matériaux et nanosciences d'Alsace, Université de Strasbourg ( UNISTRA ) -Université de Haute-Alsace (UHA) Mulhouse - Colmar ( Université de Haute-Alsace (UHA) ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Strasbourg ( UNISTRA ) -Université de Haute-Alsace (UHA) Mulhouse - Colmar ( Université de Haute-Alsace (UHA) ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ) -Réseau nanophotonique et optique, Université de Strasbourg ( UNISTRA ) -Université de Haute-Alsace (UHA) Mulhouse - Colmar ( Université de Haute-Alsace (UHA) ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Strasbourg ( UNISTRA ), Assistance publique - Hôpitaux de Paris (AP-HP)-Université Paris Diderot - Paris 7 ( UPD7 ) -Groupe Hospitalier Saint Louis - Lariboisière - Fernand Widal [Paris], Université Sorbonne Paris Cité ( USPC ), Maladie d'Alzheimer : marqueurs génétiques et vasculaires, neuropsychologie ( EA 4468 ), Université Paris Descartes - Paris 5 ( UPD5 ) -Groupe hospitalier Broca, Centre Hospitalier Universitaire de Bordeaux-Groupe hospitalier Pellegrin [Bordeaux], Centres Mémoire de Ressources et de Recherche [Hôpital Gui de Chauliac, Montpellier] ( CMRR ), Centre Hospitalier Régional Universitaire [Montpellier] ( CHRU Montpellier ) -Hôpital Gui de Chauliac, Hôpital de la Timone [CHU - APHM] ( TIMONE ) -CHU Marseille, Centre Mémoire de Ressources et de Recherche [Lyon] ( CMRR ), Hospices Civils de Lyon ( HCL ) -Hôpital des Charpennes [CHU - HCL], Hospices Civils de Lyon ( HCL ), Cognition Behaviour Technology ( CobTek ), Université Nice Sophia Antipolis ( UNS ), Université Côte d'Azur ( UCA ) -Université Côte d'Azur ( UCA ) -CHU Nice-Institut Claude Pompidou [Nice] ( ICP - Nice ), Centre Mémoire de Ressources et de Recherche [Nice] ( CMRR Nice ), Université Côte d'Azur ( UCA ) -Université Côte d'Azur ( UCA ) -CHU Nice, Centre Mémoire Ressources et Recherche [Dijon] ( CMRR Dijon ), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand ( CHU Dijon ), CHU Amiens Picardie - Site Nord (Hôpital Nord) [Amiens], CHU Rouen-Université de Rouen Normandie ( UNIROUEN ), Normandie Université ( NU ) -Normandie Université ( NU ), Centre Hospitalier Régional Universitaire de Nancy ( CHRU Nancy ), Centre Hospitalier Régional Universitaire de Tours ( CHRU TOURS ) -Hôpital Bretonneau [Tours], Université de Strasbourg ( UNISTRA ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Centre hospitalier universitaire de Nantes ( CHU Nantes ), Centre Hospitalier Régional Universitaire [Besançon] ( CHRU Besançon ) -Hôpital Jean-Minjoz [CHRU de Besançon]-Hôpital Saint-Jacques [CHRU de Besançon], Centre pour l’Acquisition et le Traitement des Images [Saclay] ( CATI ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -NeuroSpin-Institut d'imagerie biomédicale (I²BM), Sorbonne Universités, Département de Médecine Nucléaire [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [APHP], Laboratoire d'Imagerie Biomédicale ( LIB ), and Centre National de la Recherche Scientifique ( CNRS ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Université Pierre et Marie Curie - Paris 6 ( UPMC )
Subjects: Male, [SDV]Life Sciences [q-bio], Neuroimaging, Neuropsychological Tests, Spinal Puncture, Pattern Recognition, Automated, [ SDV.NEU.PC ] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Psychology and behavior, Diagnostic Self Evaluation, [ SDV.NEU.SC ] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Cognitive Sciences, Cognitive aging, Fluorodeoxyglucose F18, Image Processing, Computer-Assisted, Humans, Cognitive Dysfunction, Longitudinal Studies, ComputingMilieux_MISCELLANEOUS, Aged, [ SDV ] Life Sciences [q-bio], Cohort studies, Natural history studies (prognosis), Alzheimer''s disease, Research, Brain, Organ Size, Magnetic Resonance Imaging, [SDV] Life Sciences [q-bio], Research Design, Positron-Emission Tomography, [ SDV.NEU.NB ] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Neurobiology, [ SCCO.NEUR ] Cognitive science/Neuroscience, Female, France, Radiopharmaceuticals, Alzheimer’s disease, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, Follow-Up Studies
Abstract: Background The natural history and disease mechanisms of Alzheimer’s disease and related disorders (ADRD) are still poorly understood. Very few resources are available to scrutinise patients as early as needed and to use integrative approaches combining standardised, repeated clinical investigations and cutting-edge biomarker measurements. Methods In the nationwide French MEMENTO cohort study, participants were recruited in memory clinics and screened for either isolated subjective cognitive complaints (SCCs) or mild cognitive impairment (MCI; defined as test performance 1.5 SD below age, sex and education-level norms) while not demented (Clinical Dementia Rating [CDR]
Published: 2017
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12. Parietal Involvement in the Semantic Variant of Primary Progressive Aphasia with Alzheimer's Disease Cerebrospinal Fluid Profile.

Author: Bera, Géraldine, Migliaccio, Raffaella, Michelin, Thibaut, Lamari, Foudil, Ferrieux, Sophie, Nogues, Marie, Bertin, Hugo, Habert, Marie Odile, Dubois, Bruno, Teichmann, Marc, and Kas, Aurélie
Subjects: ALZHEIMER'S disease, APHASIA, CEREBROSPINAL fluid, PARIETAL lobe, BIOLOGICAL tags, PERFUSION
Abstract: Semantic variant of primary progressive aphasia (svPPA) is typically associated with non-Alzheimer's disease (AD) pathology. However, some anatomopathological studies have found AD lesions in those patients. We compared brain perfusion SPECT of 18 svPPA patients with cerebrospinal fluid (CSF) biomarkers indicative of non-AD pathology (svPPA-nonAD) and three svPPA patients with CSF biomarkers indicative of underlying AD (svPPA-AD). All svPPA patients had severe left temporopolar hypoperfusion. SvPPA-nonAD had additional anterior cingulate and mediofrontal hypoperfusion, whereas svPPA-AD had greater left parietal and posterior cingulate involvement. Parietal damage in svPPA constitutes a biomarker for underlying Alzheimer pathology thus refining the classification of this PPA variant. [ABSTRACT FROM AUTHOR]
Published: 2018
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13. Multimorbidity Is Associated with Preclinical Alzheimer’s Disease Neuroimaging Biomarkers.

Author: Mendes, Aline, Levy, Marcel, Dubois, Bruno, Epelbaum, Stéphane, Tezenas du Montcel, Sophie, Bertrand, Anne, Habert, Marie-Odile, and Bertin, Hugo
Subjects: ALZHEIMER'S disease diagnosis, ALZHEIMER'S disease risk factors, HIPPOCAMPUS physiology, AFFECTIVE disorders, AUTOMATION, BIOMARKERS, COGNITION, DEOXY sugars, ALCOHOL drinking, LONGITUDINAL method, NEUROPSYCHOLOGICAL tests, NEURORADIOLOGY, OBESITY, RADIOPHARMACEUTICALS, REGRESSION analysis, SLEEP apnea syndromes, POSITRON emission tomography, COMORBIDITY, CROSS-sectional method
Abstract: Background: Identifying comorbidities that influence preclinical Alzheimer’s disease (AD) can give some insight into the AD early stages trajectories to allow new treatment venues and to guide public health systems to prevent subsequent dementia. Objective: To examine the association of multimorbidity with AD neuroimaging markers in cognitively normal older adults. Methods: This study had a cross-sectional design. Data regarding 14 comorbidities were obtained for all 318 adults aged 70–85 years, recruited from the community to an ongoing prospective monocentric cohort. They underwent standardized neuropsychological and neuroimaging assessment with automated methods that measured hippocampal volumes, white matter hyperintensity volumes, fluorodeoxyglucose positron emission tomography (FDG-PET) standardized uptake values (SUV) in AD signature regions, and amyloid positron emission tomography (amyloid-PET) SUV ratios. Linear regression was used to assess the association of multimorbidity with AD neuroimaging biomarkers. Results: Multimorbidity is signif icantly associated with lower hippocampal volumes (–0.03 ± 0.01; p = 0.012; R2 = 0.017) and lower FDG-PET SUV (–0.027 ± 0.009; p = 0.005; R2 = 0.022), with no association with amyloid deposition (0.001 ± 0.007; p = 0.884; R2 = 0.0001). Taken individually, obesity and excessive alcohol use are associated with lower FDG-PET values, whereas obstructive sleep apnea and mood disorders are related to lower amyloid-PET SUV ratios. Conclusion: Multimorbidity is associated with preclinical AD imaging markers of neurodegeneration, but not with amyloid. [ABSTRACT FROM AUTHOR]
Published: 2018
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14. Evaluation of amyloid status in a cohort of elderly individuals with memory complaints: validation of the method of quantification and determination of positivity thresholds.

Author: Habert, Marie-Odile, Bertin, Hugo, Labit, Mickael, Diallo, Mamadou, Marie, Sullivan, Martineau, Kelly, Kas, Aurélie, Causse-Lemercier, Valérie, Bakardjian, Hovagim, Epelbaum, Stéphane, Chételat, Gael, Houot, Marion, Hampel, Harald, Dubois, Bruno, Mangin, Jean-François, and INSIGHT-AD study group
Abstract: Objective: Our aim is to validate the process steps implemented by the French CATI platform to assess amyloid status, obtained from 18F-Florbetapir PET scans, in a cohort of 318 cognitively normal subjects participating in the INSIGHT-preAD study. Our objective was to develop a method with partial volume effect correction (PVEC) on untransformed PET images, using an automated pipeline ("RACHEL") adapted to large series of patients and including quality checks of results.Methods: We compared RACHEL using different options (with and without PVEC, different sets of regions of interest), to two other methods validated in the literature, referred as the "AVID" and "CAEN" methods. A standard uptake value ratio (SUVR) was obtained with the different methods for participants to another French study, IMAP, including 26 normal elderly controls (NEC), 11 patients with mild cognitive impairment (MCI) and 16 patients with Alzheimer's disease (AD). We determined two cutoffs for RACHEL method by linear correlation with the other methods and applied them to the INSIGHT-preAD subjects.Results: RACHEL including PVEC and a combination of the whole cerebellum and the pons as a reference region allowed the best discrimination between NEC and AD participants. A strong linear correlation was found between RACHEL and the other two methods and yielded the two cutoffs of 0.79 and 0.88. According to the more conservative threshold, 19.8% of the INSIGHT-preAD subjects would be considered amyloid positive, and 27.7% according to the more liberal threshold.Conclusions: With our method, we clearly discriminated between NEC with negative amyloid status and patients with clinical AD. Using a linear correlation with other validated cutoffs, we could infer our own positivity thresholds and apply them to an independent population. This method might be useful to the community, especially when the optimal cutoff could not be obtained from a population of healthy young adults or from correlation with post-mortem results. [ABSTRACT FROM AUTHOR]
Published: 2018
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15. Age and sex impact plasma NFL and t-Tau trajectories in individuals with subjective memory complaints: a 3-year follow-up study.

Author: Baldacci, Filippo, Lista, Simone, Manca, Maria Laura, Chiesa, Patrizia A., Cavedo, Enrica, Lemercier, Pablo, Zetterberg, Henrik, Blennow, Kaj, Habert, Marie-Odile, Potier, Marie Claude, Dubois, Bruno, Vergallo, Andrea, Hampel, Harald, the INSIGHT-preAD study group, Bakardjian, Hovagim, Benali, Habib, Bertin, Hugo, Bonheur, Joel, Boukadida, Laurie, and Boukerrou, Nadia
Subjects: BIOMARKERS, ALZHEIMER'S disease, VITAMIN B12, VITAMIN deficiency, MEMORY
Abstract: Background: Plasma neurofilament light (NFL) and total Tau (t-Tau) proteins are candidate biomarkers for early stages of Alzheimer's disease (AD). The impact of biological factors on their plasma concentrations in individuals with subjective memory complaints (SMC) has been poorly explored. We longitudinally investigate the effect of sex, age, APOE ε4 allele, comorbidities, brain amyloid-β (Aβ) burden, and cognitive scores on plasma NFL and t-Tau concentrations in cognitively healthy individuals with SMC, a condition associated with AD development. Methods: Three hundred sixteen and 79 individuals, respectively, have baseline and three-time point assessments (at baseline, 1-year, and 3-year follow-up) of the two biomarkers. Plasma biomarkers were measured with an ultrasensitive assay in a mono-center cohort (INSIGHT-preAD study). Results: We show an effect of age on plasma NFL, with women having a higher increase of plasma t-Tau concentrations compared to men, over time. The APOE ε4 allele does not affect the biomarker concentrations while plasma vitamin B12 deficiency is associated with higher plasma t-Tau concentrations. Both biomarkers are correlated and increase over time. Baseline NFL is related to the rate of Aβ deposition at 2-year follow-up in the left-posterior cingulate and the inferior parietal gyri. Baseline plasma NFL and the rate of change of plasma t-Tau are inversely associated with cognitive score. Conclusion: We find that plasma NFL and t-Tau longitudinal trajectories are affected by age and female sex, respectively, in SMC individuals. Exploring the influence of biological variables on AD biomarkers is crucial for their clinical validation in blood. [ABSTRACT FROM AUTHOR]
Published: 2020
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16. Reproducible evaluation of classification methods in Alzheimer's disease: Framework and application to MRI and PET data.

Author: Samper-González, Jorge, Burgos, Ninon, Bottani, Simona, Fontanella, Sabrina, Lu, Pascal, Marcoux, Arnaud, Routier, Alexandre, Guillon, Jérémy, Bacci, Michael, Wen, Junhao, Bertrand, Anne, Bertin, Hugo, Habert, Marie-Odile, Durrleman, Stanley, Evgeniou, Theodoros, and Colliot, Olivier
Subjects: *ALZHEIMER'S disease, *MAGNETIC resonance imaging, *POSITRON emission tomography, *OPEN source software, *AUTOMATIC classification
Abstract: Abstract A large number of papers have introduced novel machine learning and feature extraction methods for automatic classification of Alzheimer's disease (AD). However, while the vast majority of these works use the public dataset ADNI for evaluation, they are difficult to reproduce because different key components of the validation are often not readily available. These components include selected participants and input data, image preprocessing and cross-validation procedures. The performance of the different approaches is also difficult to compare objectively. In particular, it is often difficult to assess which part of the method (e.g. preprocessing, feature extraction or classification algorithms) provides a real improvement, if any. In the present paper, we propose a framework for reproducible and objective classification experiments in AD using three publicly available datasets (ADNI, AIBL and OASIS). The framework comprises: i) automatic conversion of the three datasets into a standard format (BIDS); ii) a modular set of preprocessing pipelines, feature extraction and classification methods, together with an evaluation framework, that provide a baseline for benchmarking the different components. We demonstrate the use of the framework for a large-scale evaluation on 1960 participants using T1 MRI and FDG PET data. In this evaluation, we assess the influence of different modalities, preprocessing, feature types (regional or voxel-based features), classifiers, training set sizes and datasets. Performances were in line with the state-of-the-art. FDG PET outperformed T1 MRI for all classification tasks. No difference in performance was found for the use of different atlases, image smoothing, partial volume correction of FDG PET images, or feature type. Linear SVM and L2-logistic regression resulted in similar performance and both outperformed random forests. The classification performance increased along with the number of subjects used for training. Classifiers trained on ADNI generalized well to AIBL and OASIS. All the code of the framework and the experiments is publicly available: general-purpose tools have been integrated into the Clinica software (www.clinica.run) and the paper-specific code is available at: https://gitlab.icm-institute.org/aramislab/AD-ML. [ABSTRACT FROM AUTHOR]
Published: 2018
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16 results on '"Bertin , Hugo"'

1. Applicability of in vivo staging of regional amyloid burden in a cognitively normal cohort with subjective memory complaints: the INSIGHT-preAD study.

2. Evaluation of amyloid status in a cohort of elderly individuals with memory complaints: validation of the method of quantification and determination of positivity thresholds

3. Biomarker-guided clustering of Alzheimer's disease clinical syndromes

4. Subjective cognitive decline and rates of incident Alzheimer's disease and non–Alzheimer's disease dementia

5. MiRNA-15b and miRNA-125b are associated with regional Aβ-PET and FDG-PET uptake in cognitively normal individuals with subjective memory complaints

6. Sex differences in functional and molecular neuroimaging biomarkers of Alzheimer's disease in cognitively normal older adults with subjective memory complaints

7. Plasma tau correlates with basal forebrain atrophy rates in people at risk for alzheimer disease

8. Low Cognitive Awareness, but Not Complaint, is a Good Marker of Preclinical Alzheimer's Disease

9. Parietal involvement in the semantic variant of primary progressive aphasia with Alzheimer's disease CSF profile

10. Neural correlates of episodic memory in the Memento cohort

11. Cognitive and imaging markers in non-demented subjects attending a memory clinic: study design and baseline findings of the MEMENTO cohort

12. Parietal Involvement in the Semantic Variant of Primary Progressive Aphasia with Alzheimer's Disease Cerebrospinal Fluid Profile.

13. Multimorbidity Is Associated with Preclinical Alzheimer’s Disease Neuroimaging Biomarkers.

14. Evaluation of amyloid status in a cohort of elderly individuals with memory complaints: validation of the method of quantification and determination of positivity thresholds.

15. Age and sex impact plasma NFL and t-Tau trajectories in individuals with subjective memory complaints: a 3-year follow-up study.

16. Reproducible evaluation of classification methods in Alzheimer's disease: Framework and application to MRI and PET data.

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