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4 results on '"Stromme, P"'

1. Phenotypic spectrum and prevalence of INPP5E mutations in Joubert Syndrome and related disorders

Author

Lorena, Travaglini, Francesco, Brancati, Jennifer, Silhavy, Miriam, Iannicelli, Elizabeth, Nickerson, Nadia, Elkhartoufi, Eric, Scott, Emily, Spencer, Stacey, Gabriel, Sophie, Thomas, Bruria, Ben Zeev, Enrico, Bertini, Eugen, Boltshauser, Malika, Chaouch, Maria, Roberta Cilio, Mirjam, M. de Jong, Hulya, Kayserili, Gonul, Ogur, Andrea, Poretti, Sabrina, Signorini, Graziella, Uziel, Maha, S. Zaki, Ali Pacha, L, Zankl, A, Leventer, R, Grattan Smith, P, Janecke, A, Koch, J, Freilinger, M, D'Hooghe, M, Sznajer, Y, Vilain, C, Van Coster, R, Demerleir, L, Dias, K, Moco, C, Moreira, A, Ae Kim, C, Maegawa, G, Dakovic, I, Loncarevic, D, Mejaski Bosnjak, V, Petkovic, D, Abdel Salam GM, Abdel Aleem, A, Marti, I, Pinard, Jm, Quijano Roy, S, Sigaudy, S, de Lonlay, P, Romano, S, Verloes, A, Touraine, R, Koenig, M, Dollfus, H, Flori, E, Fradin, M, Lagier Tourenne, C, Messer, J, Collignon, P, Penzien, Jm, Bussmann, C, Merkenschlager, A, Philippi, H, Kurlemann, G, Grundmann, K, Dacou Voutetakis, C, Kitsiou Tzeli, S, Pons, R, Jerney, J, Halldorsson, S, Johannsdottir, J, Ludvigsson, P, Phadke, Sr, Girisha, Km, Doshi, H, Udani, V, Kaul, M, Stuart, B, Magee, A, Spiegel, R, Shalev, S, Mandel, H, Lev, D, Michelson, M, Idit, M, Ben Zeev, B, Gershoni Baruch, R, Ficcadenti, A, Fischetto, R, Gentile, M, Della Monica, M, Pezzani, M, Graziano, C, Seri, M, Benedicenti, F, Stanzial, F, Borgatti, R, Romaniello, R, Accorsi, P, Battaglia, S, Fazzi, E, Giordano, L, Pinelli, L, Boccone, L, Barone, R, Sorge, G, Briatore, E, Bigoni, S, Ferlini, A, Donati, Ma, Biancheri, R, Caridi, G, Divizia, Mt, Faravelli, F, Ghiggeri, G, Mirabelli, M, Pessagno, A, Rossi, A, Uliana, V, Amorini, M, Briguglio, M, Briuglia, S, Salpietro, Cd, Tortorella, G, Adami, A, Bonati, Mt, Castorina, P, D'Arrigo, S, Lalatta, F, Marra, G, Moroni, I, Pantaleoni, C, Riva, D, Scelsa, B, Spaccini, L, Del Giudice, E, Ludwig, K, Permunian, A, Suppiej, A, Macaluso, C, Pichiecchio, A, Battini, R, Di Giacomo, M, Priolo, M, Timpani, P, Pagani, G, Di Sabato ML, Emma, F, Leuzzi, V, Mancini, F, Majore, S, Micalizzi, A, Parisi, P, Romani, M, Stringini, G, Zanni, G, Ulgheri, L, Pollazzon, M, Renieri, Alessandra, Belligni, E, Grosso, E, Pieri, I, Silengo, M, Devescovi, R, Greco, D, Romano, C, Cazzagon, M, Simonati, A, Al Tawari AA, Bastaki, L, Mégarbané, A, Sabolic Avramovska, V, Said, E, Stromme, P, Koul, R, Rajab, A, Azam, M, Barbot, C, Salih, Ma, Tabarki, B, Jocic Jakubi, B, Martorell Sampol, L, Rodriguez, B, Pascual Castroviejo, I, Gener, B, Puschmann, A, Starck, L, Capone, A, Lemke, J, Fluss, J, Niedrist, D, Hennekam, Rc, Wolf, N, Gouider Khouja, N, Kraoua, I, Ceylaner, S, Teber, S, Akgul, M, Anlar, B, Comu, S, Kayserili, H, Yüksel, A, Akcakus, M, Caglayan, Ao, Aldemir, O, Al Gazali, L, Sztriha, L, Nicholl, D, Woods, Cg, Bennett, C, Hurst, J, Sheridan, E, Barnicoat, A, Hemingway, C, Lees, M, Wakeling, E, Blair, E, Bernes, S, Sanchez, H, Clark, Ae, Demarco, E, Donahue, C, Sherr, E, Hahn, J, Sanger, Td, Gallager, Te, Daugherty, C, Krishnamoorthy, Ks, Sarco, D, Walsh, Ca, Mckanna, T, Milisa, J, Chung, Wk, De Vivo DC, Raynes, H, Schubert, R, Seward, A, Brooks, Dg, Goldstein, A, Caldwell, J, Finsecke, E, Maria, Bl, Holden, K, Cruse, Rp, Karaca, E, Swoboda, Kj, Viskochil, D, Dobyns, Wb, Colin, Johnson, Tania, Attié Bitach, Joseph, G. Gleeson, Enza, Maria Valente, ANS - Amsterdam Neuroscience, APH - Amsterdam Public Health, Human Genetics, Paediatrics, OMÜ, University of Zurich, Valente, Enza Maria, Fluss, Joel Victor, Travaglini, L, Brancati, F, Silhavy, J, Iannicelli, M, Nickerson, E, Elkhartoufi, N, Scott, E, Spencer, E, Gabriel, S, Thomas, S, Ben Zeev, B, Bertini, E, Boltshauser, E, Chaouch, M, Cilio, Mr, de Jong, Mm, Kayserili, H, Ogur, G, Poretti, A, Signorini, S, Uziel, G, Zaki, M, Johnson, C, Atti? Bitach, T, Gleeson, Jg, Valente, Em, International JSRD Study, Group, and DEL GIUDICE, Ennio

Subjects
Male, Ciliata -- Anatomy, Proband, 10039 Institute of Medical Genetics, Meckel syndrome, RPGRIP1L, Syndromes, INPP5E, MODIFIER, Phosphoric Monoester Hydrolases/genetics, Ciliopathies, Polycystic Kidney Diseases/diagnosis/genetics, CILIUM, 0302 clinical medicine, Gene Frequency, Cerebellum, Prenatal Diagnosis, RETINAL DEGENERATION, Prevalence, MECKEL, ciliopathies, Joubert syndrome and related disorders, Eye Abnormalities, Child, Genetics (clinical), Encephalocele, Joubert syndrome, Genetics, Polycystic Kidney Diseases, 0303 health sciences, ddc:618, Cerebellar Diseases/diagnosis/genetics, Kidney Diseases, Cystic, Pedigree, 3. Good health, Phenotype, Child, Preschool, Medical genetics, Female, Retinitis Pigmentosa, FORM, Ciliary Motility Disorders, Heterozygote, medicine.medical_specialty, 2716 Genetics (clinical), Adolescent, Molecular Sequence Data, Encephalocele/diagnosis/genetics, AHI1, 610 Medicine & health, Biology, Retina, Article, Ciliopathies, INPP5E, Joubert syndrome and related disorders, Meckel syndrome, NO, Ciliary Motility Disorders/diagnosis/genetics, 03 medical and health sciences, 1311 Genetics, Cerebellar Diseases, REVEALS, medicine, Humans, Abnormalities, Multiple, Amino Acid Sequence, Kidney Diseases, Cystic/diagnosis/genetics, abnormalities, multiple, adolescent, amino acid sequence, cerebellar diseases, cerebellum, child, preschool, ciliary motility disorders, encephalocele, eye abnormalities, female, heterozygote, humans, infant, kidney diseases, cystic, male, molecular sequence data, pedigree, phosphoric monoester hydrolases, polycystic kidney diseases, prenatal diagnosis, prevalence, retina, gene frequency, mutation, phenotype, 030304 developmental biology, Eye Abnormalities/diagnosis/genetics, COACH SYNDROME, Retina/abnormalities, Genetic heterogeneity, Respiration disorders -- Therapy, Infant, medicine.disease, Phosphoric Monoester Hydrolases, INPP5E mutation, 10036 Medical Clinic, Mutation, 030217 neurology & neurosurgery
Abstract

Joubert syndrome and related disorders (JSRD) are clinically and genetically heterogeneous ciliopathies sharing a peculiar midbrain–hindbrain malformation known as the ‘molar tooth sign’. To date, 19 causative genes have been identified, all coding for proteins of the primary cilium. There is clinical and genetic overlap with other ciliopathies, in particular with Meckel syndrome (MKS), that is allelic to JSRD at nine distinct loci. We previously identified the INPP5E gene as causative of JSRD in seven families linked to the JBTS1 locus, yet the phenotypic spectrum and prevalence of INPP5E mutations in JSRD and MKS remain largely unknown. To address this issue, we performed INPP5E mutation analysis in 483 probands, including 408 JSRD patients representative of all clinical subgroups and 75 MKS fetuses. We identified 12 different mutations in 17 probands from 11 JSRD families, with an overall 2.7% mutation frequency among JSRD. The most common clinical presentation among mutated families (7/11, 64%) was Joubert syndrome with ocular involvement (either progressive retinopathy and/or colobomas), while the remaining cases had pure JS. Kidney, liver and skeletal involvement were not observed. None of the MKS foetuses carried INPP5E mutations, indicating that the two ciliopathies are not allelic at this locus., peer-reviewed

Published
2013

2. MKS3/TMEM67 mutations are a major cause of COACH Syndrome, a Joubert Syndrome related disorder with liver involvement

Author

Brancati, F., Iannicelli, M., Travaglini, L., Mazzotta, A., Bertini, E., Boltshauser, E., D?arrigo, S., Emma, F., Fazzi, E., Gallizzi, R., Gentile, M., Loncarevic, D., Mejaski-Bosnjak, V., Pantaleoni, C., Rigoli, L., Salpietro, C. D., Signorini, S., Stringini, G. R., Verloes, A., Zabloka, D., Dallapiccola, B., Gleeson, J. G., Valente, E. M., Zankl, A., Leventer, R., Smith, P. G., Janecke, A., D?hooghe, M., Sznajer, Y., Van Coster, R., Demerleir, L., Dias, K., Moco, C., Moreira, A., Ae Kim, C., Maegawa, G., Petkovic, D., Abdel-Salam, G. M. H., Abdel-Aleem, A., Zaki, M. S., Marti, I., Quijano-Roy, S., Sigaudy, S., De Lonlay, P., Romano, S., Touraine, R., Koenig, M., Lagier-Tourenne, C., Messer, J., Collignon, P., Wolf, N., Philippi, H., Tzeli, S. K., Halldorsson, S., Johannsdottir, J., Ludvigsson, P., Phadke, S. R., Udani, V., Stuart, B., Magee, A., Lev, D., Michelson, M., Ben-Zeev, B., Fischetto, R., Benedicenti, F., Stanzial, F., Borgatti, R., Accorsi, P., Battaglia, S., Giordano, L., Pinelli, L., Boccone, L., Bigoni, S., Ferlini, A., Donati, M. A., Caridi, G., Divizia, M. T., Faravelli, F., Ghiggeri, G., Pessagno, A., Briuglia, S., Tortorella, G., Adami, A., Castorina, P., Lalatta, F., Marra, G., Riva, D., Scelsa, B., Spaccini, L., Uziel, G., Giudice, E. D., Laverda, A. M., Ludwig, K., Permunian, A., Suppiej, A., Uggetti, C., Battini, R., Giacomo, M. D., Cilio, M. R., Di Sabato, M. L., Leuzzi, V., Parisi, P., Pollazzon, M., Silengo, M., De Vescovi, R., Greco, D., Romano, C., Cazzagon, M., Simonati, A., Al-Tawari, A. A., Bastaki, L., M('e)garban('e), A., Sabolic Avramovska, V., De Jong, M. M., Stromme, P., Koul, R., Rajab, A., Azam, M., Barbot, C., Martorell Sampol, L., Rodriguez, B., Pascual-Castroviejo, I., Teber, S., Anlar, B., Comu, S., Karaca, E., Kayserili, H., Y, Brancati, F, Iannicelli, M, Travaglini, L, Mazzotta, A, Bertini, E, Boltshauser, E, D'Arrigo, S, Emma, F, Fazzi, E, Gallizzi, R, Gentile, M, Loncarevic, D, Mejaski Bosnjak, V, Pantaleoni, C, Rigoli, L, Salpietro, Cd, Signorini, S, Stringini, Gr, Verloes, A, Zabloka, D, Dallapiccola, B, Gleeson, Jg, Valente, Em, International, JSRD Study Group, DEL GIUDICE, Ennio, and Pediatric surgery

Subjects
Pathology, medicine.medical_specialty, TMEM67, DNA Mutational Analysis, Molecular Sequence Data, education, Biology, Article, Joubert syndrome, NO, MKS3, COACH, Multiple Abnormalities, Nephronophthisis, Amino Acid Sequence, Base Sequence, Humans, Liver, Magnetic Resonance Imaging, Membrane Proteins, Mutation, Phenotype, RNA Splice Sites, Syndrome, Genetics, medicine, congenital hepatic fibrosis, Abnormalities, Multiple, Meckel syndrome, COACH syndrome, Joubert syndrome and related disorders, Genetics (clinical), Aplasia, medicine.disease, MKS3/TMEM67 mutation, COACH Syndrome, Ciliopathy, RPGRIP1L, Congenital hepatic fibrosis, human activities
Abstract

MKS3/TMEM67 mutations are a major cause of COACH Syndrome, a Joubert syndrome related disorder with liver involvement. The acronym COACH defines an autosomal recessive condition of Cerebellar vermis hypo/aplasia, Oligophrenia, congenital Ataxia, Coloboma and Hepatic fibrosis. Patients present the molar tooth sign, a midbrain-hindbrain malformation pathognomonic for Joubert Syndrome (JS) and Related Disorders (JSRDs). The main feature of COACH is congenital hepatic fibrosis (CHF), resulting from malformation of the embryonic ductal plate. CHF is invariably found also in Meckel syndrome (MS), a lethal ciliopathy already found to be allelic with JSRDs at the CEP290 and RPGRIP1L genes. Recently, mutations in the MKS3 gene (approved symbol TMEM67), causative of about 7% MS cases, have been detected in few Meckel-like and pure JS patients. Analysis of MKS3 in 14 COACH families identified mutations in 8 (57%). Features such as colobomas and nephronophthisis were found only in a subset of mutated cases. These data confirm COACH as a distinct JSRD subgroup with core features of JS plus CHF, which major gene is MKS3, and further strengthen gene-phenotype correlates in JSRDs.

Published
2009
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3. CEP290 mutations are frequently identified in the oculo-renal form of Joubert syndrome-related disorders

Author

Brancati, F., Barrano, G., Silhavy, J. L., Marsh, S. E., Travaglini, L., Bielas, S. L., Amorini, M., Zablocka, D., Kayserili, H., Al-Gazali, L., Bertini, E., Boltshauser, E., D'Hooghe, M., Fazzi, Eleonora, Fenerci, E. Y., Hennekam, R. C. M., Kiss, A., Lees, M. M., Marco, E., Phadke, S. R., Rigoli, L., Romano, S., Salpietro, C. D., Sherr, E. H., Signorini, S., Stromme, P., Stuart, B., Sztriha, L., Viskochil, D. H., Yuksel, A., Dallapiccola, B., Valente, E. M., Gleeson, J. G., Grattan-Smith, P., Leventer, R., Janecke, A., Van Coster, R., Dias, K., Moco, C., MOREIRA DA SILVA, CLAUDIA ALEXANDRA, Chong, A. K., Maegawa, G., Abdel-Salam, G. M. H., Abdel-Aleem, A., Zaki, M. S., Marti, I., Quijano-Roy, S., De Lonlay, P., Verloes, A., Touraine, R., Koenig, M., Lagier-Tourenne, C., Messer, J., Philippi, H., Tzeli, S. K., Halldorsson, S., Johannsdottir, J., Ludvigsson, P., Magee, A., Lev, D., Michelson, M., Ben-Zeev, B., Fischetto, R., Gentile, M., Battaglia, S., Giordano, L., Boccone, L., Ruggieri, M., Bigoni, S., Ferlini, A., Donati, M. A., Procopio, E., Caridi, G., Faravelli, F., Ghiggeri, G., Briuglia, S., Tortorella, G., D'Arrigo, S., Pantaleoni, C., Riva, D., Uziel, G., Lavercla, A. M., Permunian, A., Bova, S., Battini, Roberta, Cilio, M. R., DI SABATO, Manuela, Emma, F., Leuzzi, V., Parisi, P., Simonati, A., Al-Tawari, A. A., Bastaki, L., Aqeel, A., De Jong, M. M., Koul, R., Rajab, A., Azam, M., Barbot, C., Rodriguez, B., Pascual-Castroviejo, I., Comu, S., Akcakus, M., Nicholl, D., Woods, C. G., Bennett, C., Hurst, J., Walsh, C. A., Bernes, S., Sanchez, H., Clark, A. E., Donahue, C., Hahn, J., Sanger, T. D., Gallager, T. E., Dobyns, W. B., Daugherty, C., Krishnamoorthy, K. S., Sarco, D., Mckanna, T., Milisa, J., Chung, W. K., De Vivo, D. C., Raynes, H., Schubert, R., Seward, A., Brooks, D. G., Goldstein, A., Caldwell, J., Finsecke, E., Maria, B. L., Holden, K., Cruse, R. P., Swoboda, K. J., ANS - Amsterdam Neuroscience, APH - Amsterdam Public Health, and Paediatric Genetics

Subjects
Male, Pathology, DNA Mutational Analysis, Cell Cycle Proteins, medicine.disease_cause, Ciliopathies, Ocular Motility Disorders, Cohort Studies, Joubert syndrome–related disorders, CEP290, Genetics(clinical), Child, Genetics (clinical), Genetics, Mutation, Brain, Syndrome, Phenotype, Magnetic Resonance Imaging, Kidney Diseases, Molar, Neoplasm Proteins, Child, Preschool, Abnormalities, Multiple, Adolescent, Adult, Antigens, Neoplasm, Female, Humans, Abnormalities, Multiple, medicine.medical_specialty, Biology, Article, Joubert syndrome, Central nervous system disease, medicine, Antigens, Preschool, Genetic heterogeneity, medicine.disease, Cytoskeletal Proteins, Situs inversus, Neoplasm
Abstract

Joubert syndrome–related disorders (JSRDs) are a group of clinically and genetically heterogeneous conditions that share a midbrain-hindbrain malformation, the molar tooth sign (MTS) visible on brain imaging, with variable neurological, ocular, and renal manifestations. Mutations in the CEP290 gene were recently identified in families with the MTS-related neurological features, many of which showed oculo-renal involvement typical of Senior-Löken syndrome (JSRD-SLS phenotype). Here, we performed comprehensive CEP290-mutation analysis on two nonoverlapping cohorts of JSRD-affected patients with a proven MTS. We identified mutations in 19 of 44 patients with JSRD-SLS. The second cohort consisted of 84 patients representing the spectrum of other JSRD subtypes, with mutations identified in only two patients. The data suggest that CEP290 mutations are frequently encountered and are largely specific to the JSRD-SLS subtype. One patient with mutation displayed complete situs inversus, confirming the clinical and genetic overlap between JSRDs and other ciliopathies.

Published
2007

4. Endocrine and Growth Abnormalities in 4H Leukodystrophy Caused by Variants in POLR3A, POLR3B, and POLR1C

Author

Petter Strømme, Ferda Ozkinay, Heike Philippi, Pontus Wasling, Sebastien Moutton, Dagmar Timmann, Maria Vázquez-López, Pedro S Pinto, Annette Bley, A. Blaschek, Gabriel Á. Martos-Moreno, A. Micheil Innes, Alan Hill, Argirios Dinopoulos, Fiona Haslam McKenzie, Janice M. Fletcher, Barbara Plecko, Hanna Mierzewska, Matthis Synofzik, Cathy A. Stevens, Raphael Schiffmann, Janina Gburek-Augustat, Miriam Nickel, Constantin Polychronakos, Kether Guerrero, Susan M. Kirwin, Icíar Cimas, Inga Harting, Bwee Tien Poll-The, Vera Popovic, Coriene E. Catsman-Berrevoets, Simona Orcesi, Nicole I. Wolf, Laura Roos, Grace M. Hobson, Norberto Rodriguez Espinosa, Gert Wiegand, Bernard Brais, Julia Rankin, Marjo S. van der Knaap, Cyril Goizet, Michelle Demos, Sandra Pekic, Ingrid Tejera-Martin, Adeline Vanderver, Stefanie Perrier, Brent L. Fogel, Eriskay Liston, Meriel McEntagart, Ferdy K. Cayami, Bart P.C. van de Warrenburg, Anne Ronan, Paolo Gasparini, Bernard Corenblum, Joost Rotteveel, Mercedes Pineda Marfa, Roberta La Piana, Richard Webster, Eugen Boltshauser, Amytice Mirchi, Dietz Rating, Klara Brozova, Ingeborg Krägeloh-Mann, Marcelo Andrés Kauffman, Nesrin Senbil, Gerhard Kluger, Brenda Banwell, Flavio Faletra, Michel Sylvain, Urania Kotzaeridou, Tahir Atik, Raymond Fernandez, Stephan Saikali, William S. Benko, Fernando I Monton, Dorota Gieruszczak-Białek, Dolores Gonzalez Moron, Charles Marques Lourenço, Amy Pizzino, Ana Potic, Elsa Rossignol, Ton J. de Grauw, William T. Gibson, Luan T. Tran, Davide Tonduti, Rosalina M. L. van Spaendonk, Rocío Sánchez-Carpintero, Raymond P J Murphy, Guillaume Sébire, Daniela Pohl, Joshua L. Bonkowsky, Christopher Clough, Sandya Tirupathi, Maria Eugenia Garcia Garcia, Christoph Hertzberg, Serge Melançon, Anjum Misbahuddin, Félixe Pelletier, Evangeline Wassmer, Gail Dolan, Marie-France Rioux, Geneviève Bernard, Sunita Venkateswaran, Steffi Patzer, Aline Hamati, Helio Pedro, Hüseyin Onay, Drago Bratkovic, Petra Kolditz, Daniel Tibussek, Sakkubai Naidu, Nicole Ulrick, Emmanouil Rampakakis, William McClintock, Anna Schossig, Mohnish Suri, Grace Yoon, László Sztriha, John R. Østergaard, Laboratoire Maladies Rares: Génétique et Métabolisme (Bordeaux) (U1211 INSERM/MRGM), Université de Bordeaux (UB)-Groupe hospitalier Pellegrin-Institut National de la Santé et de la Recherche Médicale (INSERM), Canadian Institutes of Health Research, Fonds de recherche du Québec, Fonds de Recherche du Québec - Santé, Neurology, Functional Genomics, Pelletier, F., Perrier, S., Cayami, F. K., Mirchi, A., Saikali, S., Tran, L. T., Ulrick, N., Guerrero, K., Rampakakis, E., van Spaendonk, R. M. L., Naidu, S., Pohl, D., Gibson, W. T., Demos, M., Goizet, C., Tejera-Martin, I., Potic, A., Fogel, B. L., Brais, B., Sylvain, M., Sebire, G., Lourenco, C. M., Bonkowsky, J. L., Catsman-Berrevoets, C., Pinto, P. S., Tirupathi, S., Stromme, P., de Grauw, T., Gieruszczak-Bialek, D., Krageloh-Mann, I., Mierzewska, H., Philippi, H., Rankin, J., Atik, T., Banwell, B., Benko, W. S., Blaschek, A., Bley, A., Boltshauser, E., Bratkovic, D., Brozova, K., Cimas, I., Clough, C., Corenblum, B., Dinopoulos, A., Dolan, G., Faletra, F., Fernandez, R., Fletcher, J., Garcia Garcia, M. E., Gasparini, P., Gburek-Augustat, J., Gonzalez Moron, D., Hamati, A., Harting, I., Hertzberg, C., Hill, A., Hobson, G. M., Innes, A. M., Kauffman, M., Kirwin, S. M., Kluger, G., Kolditz, P., Kotzaeridou, U., La Piana, R., Liston, E., Mcclintock, W., Mcentagart, M., Mckenzie, F., Melancon, S., Misbahuddin, A., Suri, M., Monton, F. I., Moutton, S., Murphy, R. P. J., Nickel, M., Onay, H., Orcesi, S., Ozkinay, F., Patzer, S., Pedro, H., Pekic, S., Pineda Marfa, M., Pizzino, A., Plecko, B., Poll-The, B. T., Popovic, V., Rating, D., Rioux, M. -F., Rodriguez Espinosa, N., Ronan, A., Ostergaard, J. R., Rossignol, E., Sanchez-Carpintero, R., Schossig, A., Senbil, N., Sonderberg Roos, L. K., Stevens, C. A., Synofzik, M., Sztriha, L., Tibussek, D., Timmann, D., Tonduti, D., van de Warrenburg, B. P., Vazquez-Lopez, M., Venkateswaran, S., Wasling, P., Wassmer, E., Webster, R. I., Wiegand, G., Yoon, G., Rotteveel, J., Schiffmann, R., van der Knaap, M. S., Vanderver, A., Martos-Moreno, G. A., Polychronakos, C., Wolf, N. I., Bernard, G., Human genetics, Pediatric surgery, Amsterdam Reproduction & Development (AR&D), and Amsterdam Neuroscience - Cellular & Molecular Mechanisms

Subjects
Male, Recessive Mutations, Mitochondrial Diseases, genetics [Mitochondrial Diseases], hypomyelination, etiology [Endocrine System Diseases], Endocrinology, Diabetes and Metabolism, Clinical Biochemistry, Medizin, POLR3A protein, human, genetics [Endocrine System Diseases], Biochemistry, Cohort Studies, 0302 clinical medicine, Endocrinology, etiology [Growth Disorders], Diagnosis, epidemiology [Growth Disorders], 4H leukodystrophy, Online Only articles, Child, Prospective cohort study, Growth Disorders, genetics [Growth Disorders], POLR3-related leukodystrophy, 0303 health sciences, DNA-Directed RNA Polymerases, Pattern-Recognition, Diffuse Hypomyelination, Classification, Disorders of movement Donders Center for Medical Neuroscience [Radboudumc 3], 3. Good health, epidemiology [Hereditary Central Nervous System Demyelinating Diseases], Hormone Deficiency, POLR1C protein, human, Child, Preschool, Female, medicine.symptom, AcademicSubjects/MED00250, Adult, Delayed puberty, Subunit, medicine.medical_specialty, Adolescent, Context (language use), Endocrine System Diseases, Short stature, genetics [Hereditary Central Nervous System Demyelinating Diseases], Genetic Heterogeneity, Young Adult, 03 medical and health sciences, SDG 3 - Good Health and Well-being, hypogonadotropic hypogonadism, Hypogonadotropic hypogonadism, etiology [Hypogonadism], Internal medicine, medicine, genetics [RNA Polymerase III], Humans, Endocrine system, ddc:610, POLR3B protein, human, genetics [DNA-Directed RNA Polymerases], Clinical Research Articles, Retrospective Studies, 030304 developmental biology, complications [Hereditary Central Nervous System Demyelinating Diseases], business.industry, Hypogonadism, Biochemistry (medical), Leukodystrophy, Infant, Newborn, Infant, RNA Polymerase III, medicine.disease, complications [Mitochondrial Diseases], epidemiology [Mitochondrial Diseases], epidemiology [Endocrine System Diseases], Hereditary Central Nervous System Demyelinating Diseases, Cross-Sectional Studies, Biological Variation, Population, Mutation, epidemiology [Hypogonadism], business, 030217 neurology & neurosurgery, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, Hormone
Abstract

Context 4H or POLR3-related leukodystrophy is an autosomal recessive disorder typically characterized by hypomyelination, hypodontia, and hypogonadotropic hypogonadism, caused by biallelic pathogenic variants in POLR3A, POLR3B, POLR1C, and POLR3K. The endocrine and growth abnormalities associated with this disorder have not been thoroughly investigated to date. Objective To systematically characterize endocrine abnormalities of patients with 4H leukodystrophy. Design An international cross-sectional study was performed on 150 patients with genetically confirmed 4H leukodystrophy between 2015 and 2016. Endocrine and growth abnormalities were evaluated, and neurological and other non-neurological features were reviewed. Potential genotype/phenotype associations were also investigated. Setting This was a multicenter retrospective study using information collected from 3 predominant centers. Patients A total of 150 patients with 4H leukodystrophy and pathogenic variants in POLR3A, POLR3B, or POLR1C were included. Main Outcome Measures Variables used to evaluate endocrine and growth abnormalities included pubertal history, hormone levels (estradiol, testosterone, stimulated LH and FSH, stimulated GH, IGF-I, prolactin, ACTH, cortisol, TSH, and T4), and height and head circumference charts. Results The most common endocrine abnormalities were delayed puberty (57/74; 77% overall, 64% in males, 89% in females) and short stature (57/93; 61%), when evaluated according to physician assessment. Abnormal thyroid function was reported in 22% (13/59) of patients. Conclusions Our results confirm pubertal abnormalities and short stature are the most common endocrine features seen in 4H leukodystrophy. However, we noted that endocrine abnormalities are typically underinvestigated in this patient population. A prospective study is required to formulate evidence-based recommendations for management of the endocrine manifestations of this disorder., Canadian Institutes of Health Research [201610PJT-377869, MOP-G2-341146-159133-BRIDG]; Fondation Les Amis d'Elliot; Leuco-Action; Fondation Lueur d'Espoir pour Ayden; Fondation le Tout pour Loo; Reseau de Medecine Genetique Appliquee of the Fonds de Recherche du Quebec-Sante; Compute Canada; Fonds de Recherche du Quebec en Sante (FRQS) Doctoral Scholarship; Fondation du Grand defi Pierre Lavoie Doctoral Scholarship; McGill Faculty of Medicine F. S.B. Miller Fellowship; Research Institute of the McGill University Health Centre Desjardins Studentship in Child Health Research; Directorate of Higher Education Overseas Scholarship-Dikti Scholarship, Ministry of National Education, Republic of Indonesia; CIHR [201603PJT-148695]; BC Children's Hospital Foundation through its intramural Investigator Grant Award Program (IGAP); National Institute for Neurological Disorders and Stroke [R01NS082094]; Jakob Kamens Chair in Translational Neurotherapeutics; Fonds de Recherche du Quebec-Sante (FRQS); Canadian Institutes of Health Research; European Reference Network for Rare Neurological Disorders (ERN-RND) [739510], This study was supported by grants from the Canadian Institutes of Health Research (201610PJT-377869, MOP-G2-341146-159133-BRIDG), Fondation Les Amis d'Elliot, Leuco-Action, Fondation Lueur d'Espoir pour Ayden, Fondation le Tout pour Loo, and Reseau de Medecine Genetique Appliquee of the Fonds de Recherche du Quebec-Sante to G. Bernard. This research was enabled in part by support provided by Compute Canada (www.computecanada.ca).S.Perrier is supported by the Fonds de Recherche du Quebec en Sante (FRQS) Doctoral Scholarship, the Fondation du Grand defi Pierre Lavoie Doctoral Scholarship, the McGill Faculty of Medicine F. S.B. Miller Fellowship, and the Research Institute of the McGill University Health Centre Desjardins Studentship in Child Health Research. F. K.C. is a recipient of the Directorate of Higher Education Overseas Scholarship-Dikti Scholarship, Ministry of National Education, Republic of Indonesia. W.T. G. received funding from the CIHR (201603PJT-148695) and is supported by the BC Children's Hospital Foundation through its intramural Investigator Grant Award Program (IGAP). B.L. F. was supported by the National Institute for Neurological Disorders and Stroke (R01NS082094). A.V. receives funding from the Jakob Kamens Chair in Translational Neurotherapeutics. G. Bernard has received a Research Scholar Junior 1 award from the Fonds de Recherche du Quebec-Sante (FRQS) (2012-2016) and the New Investigator Salary Award from the Canadian Institutes of Health Research (2017-2022). I.K.M., M. Synofzik, D. Tonduti, B.P.v.d.W., M.S. V.d.K., and N.I.W. are members of the European Reference Network for Rare Neurological Disorders (ERN-RND), project ID 739510.

Published
2021
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