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5. Fine‐Mapping of SNCA in Rapid Eye Movement Sleep Behavior Disorder and Overt Synucleinopathies

Author

Edward A. Fon, Armaghan Alam, Richard Y.J. Wu, Cornelis Blauwendraat, Jennifer A. Ruskey, Luigi Ferini-Strambi, Paul Cannon, Mathias Toft, Mariarosaria Valente, Alex Desautels, Andrew B. Singleton, Valérie Cochen De Cock, Yves Dauvilliers, Elena Antelmi, C. Trenkwalder, Kari Anne Bjørnarå, Abril Beatriz, Christelle Charley Monaca, Jacques Montplaisir, Nicolas Dupré, Mineke Viaene, Peter Young, Birgit Högl, Giuseppe Plazzi, Monica Puligheddu, W. H. Oertel, Marco Toffoli, Bradley F. Boeve, Owen A. Ross, Friederike Sixel-Döring, Lasse Pihlstrøm, Michele T.M. Hu, Isabelle Arnulf, Sandra B. Laurent, Karl Heilbron, Michela Figorilli, Anna Heidbreder, Lynne Krohn, Guy A. Rouleau, Karel Sonka, Ziv Gan-Or, Mike A. Nalls, Jean-François Gagnon, David Kemlink, Evi Holzknecht, Femke Dijkstra, Ambra Stefani, Gian Luigi Gigli, Brit Mollenhauer, Ronald B. Postuma, Krohn L., Wu R.Y.J., Heilbron K., Ruskey J.A., Laurent S.B., Blauwendraat C., Alam A., Arnulf I., Hu M.T.M., Dauvilliers Y., Hogl B., Toft M., Bjornara K.A., Stefani A., Holzknecht E., Monaca C.C., Abril B., Plazzi G., Antelmi E., Ferini-Strambi L., Young P., Heidbreder A., Cochen De Cock V., Mollenhauer B., Sixel-Doring F., Trenkwalder C., Sonka K., Kemlink D., Figorilli M., Puligheddu M., Dijkstra F., Viaene M., Oertel W., Toffoli M., Gigli G.L., Valente M., Gagnon J.-F., Nalls M.A., Singleton A.B., Desautels A., Montplaisir J.Y., Cannon P., Ross O.A., Boeve B.F., Dupre N., Fon E.A., Postuma R.B., Pihlstrom L., Rouleau G.A., Gan-Or Z., Krohn, L., R. Y. J., Wu, Heilbron, K., Ruskey, J. A., Laurent, S. B., Blauwendraat, C., Alam, A., Arnulf, I., M. T. M., Hu, Dauvilliers, Y., Hogl, B., Toft, M., Bjornara, K. A., Stefani, A., Holzknecht, E., Monaca, C. C., Abril, B., Plazzi, G., Antelmi, E., Ferini-Strambi, L., Young, P., Heidbreder, A., Cochen De Cock, V., Mollenhauer, B., Sixel-Doring, F., Trenkwalder, C., Sonka, K., Kemlink, D., Figorilli, M., Puligheddu, M., Dijkstra, F., Viaene, M., Oertel, W., Toffoli, M., Gigli, G. L., Valente, M., Gagnon, J. -F., Nalls, M. A., Singleton, A. B., Desautels, A., Montplaisir, J. Y., Cannon, P., Ross, O. A., Boeve, B. F., Dupre, N., Fon, E. A., Postuma, R. B., Pihlstrom, L., Rouleau, G. A., Gan-Or, Z., McGill University Health Center [Montreal] (MUHC), Montreal Neurological Institute and Hospital, McGill University = Université McGill [Montréal, Canada], Imperial College London, 23andMe Inc., National Institute on Aging [Bethesda, USA] (NIA), National Institutes of Health [Bethesda] (NIH), Centre d'investigation clinique Neurosciences [CHU Pitié Salpêtrière] (CIC Neurosciences), 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), University of Oxford [Oxford], Nuffield Department of Clinical Neurosciences [Oxford], Département de neurologie [Montpellier], Hôpital Gui de Chauliac [Montpellier]-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Université Montpellier 1 (UM1)-Université de Montpellier (UM), Innsbruck Medical University [Austria] (IMU), Oslo University Hospital [Oslo], Service de neurophysiologie clinique (CHRU Lille), Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Hôpital Universitaire Carémeau [Nîmes] (CHU Nîmes), Centre Hospitalier Universitaire de Nîmes (CHU Nîmes), Alma Mater Studiorum University of Bologna (UNIBO), University of Bologna, Department of Biomedical and Neuromotor Sciences [Bologna, Italy], Universita Vita Salute San Raffaele = Vita-Salute San Raffaele University [Milan, Italie] (UniSR), University of Münster, Clinique Beau Soleil [Montpellier], EuroMov - Digital Health in Motion (Euromov DHM), IMT - MINES ALES (IMT - MINES ALES), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Montpellier (UM), Paracelsus-Elena-Klinik, Kassel, Germany., University Medical Center Göttingen (UMG), First Faculty of Medicine Charles University [Prague], Universita degli Studi di Cagliari [Cagliari], Algemeen Ziekenhuis Sint-Dimpna, Philipps University of Marburg, Università degli Studi di Udine - University of Udine [Italie], University College of London [London] (UCL), Department of Mathematics and Computer Science [Udine], Hôpital du Sacré-Coeur de Montréal, Université du Québec à Montréal = University of Québec in Montréal (UQAM), Data Tecnica International, Centre d'études avancées en Médecine du Sommeil (CEAMS), Université de Montréal (UdeM)-Hôpital du Sacré-Coeur de Montréal, Mayo Clinic [Jacksonville], Mayo Clinic [Rochester], Laval University Medical center, and Université Laval [Québec] (ULaval)

Subjects
Male, 0301 basic medicine, Oncology, Linkage disequilibrium, Synucleinopathies, REM sleep behavior disorder, MESH: Logistic Models, REM Sleep Behavior Disorder, 0302 clinical medicine, synucleinopathy, SNCA, Odds Ratio, RBD-specific risk variants, MESH: Aged, MESH: Middle Aged, Rapid eye movement sleep behavior disorder (RBD), MESH: Polymorphism, Single Nucleotide, MESH: Genetic Predisposition to Disease, Parkinson Disease, Middle Aged, MESH: Case-Control Studies, 3. Good health, Neurology, MESH: Synucleinopathies, alpha-Synuclein, Female, Adult, Lewy Body Disease, medicine.medical_specialty, Prodromal Symptoms, Single-nucleotide polymorphism, Locus (genetics), Polymorphism, Single Nucleotide, Article, 03 medical and health sciences, Internal medicine, MESH: alpha-Synuclein, medicine, Humans, Genetic Predisposition to Disease, MESH: Prodromal Symptoms, Allele frequency, MESH: Lewy Body Disease, Aged, MESH: Humans, business.industry, Dementia with Lewy bodies, [SCCO.NEUR]Cognitive science/Neuroscience, MESH: Adult, Odds ratio, medicine.disease, MESH: Odds Ratio, MESH: Male, synucleinopathies, Logistic Models, 030104 developmental biology, MESH: REM Sleep Behavior Disorder, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Case-Control Studies, Synuclein, Neurology (clinical), business, MESH: Female, MESH: Parkinson Disease, 030217 neurology & neurosurgery
Abstract

Objective: Rapid eye movement sleep behavior disorder (RBD) is a prodromal synucleinopathy, as >80% will eventually convert to overt synucleinopathy. We performed an in-depth analysis of the SNCA locus to identify RBD-specific risk variants. Methods: Full sequencing and genotyping of SNCA was performed in isolated/idiopathic RBD (iRBD, n = 1,076), Parkinson disease (PD, n = 1,013), dementia with Lewy bodies (DLB, n = 415), and control subjects (n = 6,155). The iRBD cases were diagnosed with RBD prior to neurodegeneration, although some have since converted. A replication cohort from 23andMe of PD patients with probable RBD (pRBD) was also analyzed (n = 1,782 cases; n = 131,250 controls). Adjusted logistic regression models and meta-analyses were performed. Effects on conversion rate were analyzed in 432 RBD patients with available data using Kaplan–Meier survival analysis. Results: A 5′-region SNCA variant (rs10005233) was associated with iRBD (odds ratio [OR] = 1.43, p = 1.1E-08), which was replicated in pRBD. This variant is in linkage disequilibrium (LD) with other 5′ risk variants across the different synucleinopathies. An independent iRBD-specific suggestive association (rs11732740) was detected at the 3′ of SNCA (OR = 1.32, p = 4.7E-04, not statistically significant after Bonferroni correction). Homozygous carriers of both iRBD-specific SNPs were at highly increased risk for iRBD (OR = 5.74, p = 2E-06). The known top PD-associated variant (3′ variant rs356182) had an opposite direction of effect in iRBD compared to PD. Interpretation: There is a distinct pattern of association at the SNCA locus in RBD as compared to PD, with an opposite direction of effect at the 3′ of SNCA. Several 5′ SNCA variants are associated with iRBD and with pRBD in overt synucleinopathies. ANN NEUROL 2020;87:584–598.

Published
2020

6. Comprehensive Analysis of Familial Parkinsonism Genes in Rapid‐Eye‐Movement Sleep Behavior Disorder

Author

Christelle Charley Monaca, Alex Desautels, Yves Dauvilliers, Beatriz Abril, Elena Antelmi, Ambra Stefani, Giuseppe Plazzi, Karel Sonka, Monica Puligheddu, Brit Mollenhauer, Birgit Högl, Sandra B. Laurent, Eric Yu, Farnaz Asayesh, Luigi Ferini-Strambi, Mariarosaria Valente, Jennifer A. Ruskey, Michela Figorilli, Uladzislau Rudakou, Annette Janzen, Ziv Gan-Or, Francesco Janes, Mineke Viaene, Ronald B. Postuma, Valérie Cochen De Cock, Bradley F. Boeve, David Kemlink, Evi Holzknecht, Dan Spiegelman, Jacques Montplaisir, Anna Heidbreder, Gian Luigi Gigli, Michele T.M. Hu, Friederike Sixel-Döring, Lynne Krohn, Kheireddin Mufti, Guy A. Rouleau, Isabelle Arnulf, Claudia Trenkwalder, Wolfgang H. Oertel, Femke Dijkstra, Jean-François Gagnon, Centre de Recherche de l'Institut du Cerveau et de la Moelle épinière (CRICM), 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], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Hôpital Gui de Chauliac [CHU Montpellier], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Clinique Beau Soleil [Montpellier], EuroMov - Digital Health in Motion (Euromov DHM), IMT - MINES ALES (IMT - MINES ALES), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Montpellier (UM), CHU Lille, Université de Lille, Hôpital Universitaire Carémeau [Nîmes] (CHU Nîmes), Centre Hospitalier Universitaire de Nîmes (CHU Nîmes), Mufti, K., Rudakou, U., Yu, E., Krohn, L., Ruskey, J. A., Asayesh, F., Laurent, S. B., Spiegelman, D., Arnulf, I., M. T. M., Hu, Montplaisir, J. Y., Gagnon, J. -F., Desautels, A., Dauvilliers, Y., Gigli, G. L., Valente, M., Janes, F., Hogl, B., Stefani, A., Holzknecht, E., Sonka, K., Kemlink, D., Oertel, W., Janzen, A., Plazzi, G., Antelmi, E., Figorilli, M., Puligheddu, M., Mollenhauer, B., Trenkwalder, C., Sixel-Doring, F., Cochen De Cock, V., Monaca, C. C., Heidbreder, A., Ferini-Strambi, L., Dijkstra, F., Viaene, M., Abril, B., Boeve, B. F., Postuma, R. B., Rouleau, G. A., and Gan-Or, Z.

Subjects
0301 basic medicine, Heterozygote, Parkinson's disease, MESH: Sleep, [SDV]Life Sciences [q-bio], REM sleep behavior disorder, Rapid eye movement sleep, Disease, genetic analysis, Compound heterozygosity, Genetic analysis, 03 medical and health sciences, 0302 clinical medicine, Parkinsonian Disorders, Medicine, Humans, MESH: Heterozygote, Genetics, MESH: Humans, business.industry, MESH: Parkinsonian Disorders, PARK7, Parkinson Disease, medicine.disease, LRRK2, 3. Good health, 030104 developmental biology, Neurology, MESH: REM Sleep Behavior Disorder, Human medicine, Neurology (clinical), business, Sleep, 030217 neurology & neurosurgery, MESH: Parkinson Disease
Abstract

International audience; Background: There is only partial overlap in the genetic background of isolated rapid-eye-movement sleep behavior disorder (iRBD) and Parkinson's disease (PD).Objective: To examine the role of autosomal dominant and recessive PD or atypical parkinsonism genes in the risk of iRBD.Methods: Ten genes, comprising the recessive genes PRKN, DJ-1 (PARK7), PINK1, VPS13C, ATP13A2, FBXO7, and PLA2G6 and the dominant genes LRRK2, GCH1, and VPS35, were fully sequenced in 1039 iRBD patients and 1852 controls of European ancestry, followed by association tests.Results: We found no association between rare heterozygous variants in the tested genes and risk of iRBD. Several homozygous and compound heterozygous carriers were identified, yet there was no overrepresentation in iRBD patients versus controls.Conclusion: Our results do not support a major role for variants in these genes in the risk of iRBD. © 2020 International Parkinson and Movement Disorder Society.

Published
2021

7. Genetic, Structural, and Functional Evidence Link TMEM175 to Synucleinopathies

Author

Uladzislau Rudakou, Edward A. Fon, Petra Oliva, Guy A. Rouleau, Yves Dauvilliers, Elena Antelmi, Birgit Högl, Anna Heidbreder, Jean-François Trempe, Christopher Liong, Bouchra Ouled Amar Bencheikh, Pavlina Wolf, Isabelle Arnulf, Luigi Ferini-Strambi, A. Desautels, Jennifer A. Ruskey, Peter Young, Nicolas Dupré, Valérie Cochen De Cock, Giuseppe Plazzi, Lior Greenbaum, Michele T.M. Hu, Lynne Krohn, Roy N. Alcalay, Guillaume Lamoureux, Ziv Gan-Or, Xiaokui Kate Zhang, Jacques Montplaisir, S. Hassin-Baer, Dan Spiegelman, Ronald B. Postuma, Ambra Stefani, Jean-François Gagnon, Christelle Charley Monaca, Benoît Vanderperre, Sandra B. Laurent, Tugba N. Ozturk, Department of Human Genetics [Montréal], McGill University = Université McGill [Montréal, Canada], Montreal Neurological Institute and Hospital, Concordia University [Montreal], Centre for Research in Molecular Modeling and Department of Chemistry & Biochemistry, PROTEO, The Quebec Network for Research on Protein Function, Engineering, and Applications, Institut Armand Frappier (INRS-IAF), Institut National de la Recherche Scientifique [Québec] (INRS)-Réseau International des Instituts Pasteur (RIIP)-Institut National de la Recherche Scientifique [Québec] (INRS)-Réseau International des Instituts Pasteur (RIIP)-Université de Sherbrooke (UdeS)-Université Laval [Québec] (ULaval)-McGill University = Université McGill [Montréal, Canada]-University of Ottawa [Ottawa]-Université du Québec à Trois-Rivières (UQTR)-Université de Montréal (UdeM)-TransBiotech, Lévis-Concordia University [Montreal]-Université du Québec à Montréal = University of Québec in Montréal (UQAM), Department of Neurology and Neurosurgery [Montreal], McGill University = Université McGill [Montréal, Canada]-McGill University = Université McGill [Montréal, Canada], CHU Pitié-Salpêtrière [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), Department of Physiology, Anatomy and Genetics [Oxford], University of Oxford [Oxford], Nuffield Department of Clinical Neurosciences [Oxford], Hôpital Gui de Chauliac, Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Neuropsychiatrie : recherche épidémiologique et clinique (PSNREC), Université Montpellier 1 (UM1)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), Universität Innsbruck [Innsbruck], Service de neurophysiologie clinique (CHRU Lille), Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Alma Mater Studiorum University of Bologna (UNIBO), Institute of Neurological Sciences of Bologna IRCCS, Universita Vita Salute San Raffaele = Vita-Salute San Raffaele University [Milan, Italie] (UniSR), University of Münster, Clinique Beau Soleil [Montpellier], Euromov (EuroMov), Université de Montpellier (UM), University Hospital Münster - Universitaetsklinikum Muenster [Germany] (UKM), Sanofi Genzyme, The Danek Gertner Institute of Genetics, Chaim Sheba Medical Center, Chaim Sheba Medical Center, Sackler Faculty of Medicine, Tel Aviv University [Tel Aviv], Columbia University College of Physicians and Surgeons, Center for advanced research in sleep medicine, Montreal, Université de Montréal (UdeM), Université du Québec à Montréal = University of Québec in Montréal (UQAM), Axe Neurosciences [CHU Québec], Centre Hospitalier Université Laval [Quebec] (CHUL), CHU de Québec–Université Laval, Université Laval [Québec] (ULaval)-Université Laval [Québec] (ULaval)-CHU de Québec–Université Laval, Université Laval [Québec] (ULaval)-Université Laval [Québec] (ULaval)-Centre de recherche du CHU de Québec-Université Laval (CRCHUQ), Université Laval [Québec] (ULaval)-Université Laval [Québec] (ULaval), Research Center of CIUSSS of the North of Montreal and Department of Psychiatry, University of Montreal, Montreal, Quebec, Canada, Laval University Medical center, Université Laval [Québec] (ULaval), McGill University Health Center [Montreal] (MUHC), Department of Pharmacology and Therapeutics [Montréal], Center for Computational and Integrative Biology [Camden] (CCIB), Rutgers University [Camden], Rutgers University System (Rutgers)-Rutgers University System (Rutgers), Krohn, L., Ozturk, T. N., Vanderperre, B., Ouled Amar Bencheikh, B., Ruskey, J. A., Laurent, S. B., Spiegelman, D., Postuma, R. B., Arnulf, I., M. T. M., Hu, Dauvilliers, Y., Hogl, B., Stefani, A., Monaca, C. C., Plazzi, G., Antelmi, E., Ferini-Strambi, L., Heidbreder, A., Rudakou, U., Cochen De Cock, V., Young, P., Wolf, P., Oliva, P., Zhang, X. K., Greenbaum, L., Liong, C., Gagnon, J. -F., Desautels, A., Hassin-Baer, S., Montplaisir, J. Y., Dupre, N., Rouleau, G. A., Fon, E. A., Trempe, J. -F., Lamoureux, G., Alcalay, R. N., Gan-Or, Z., Krohn L., Ozturk T.N., Vanderperre B., Ouled Amar Bencheikh B., Ruskey J.A., Laurent S.B., Spiegelman D., Postuma R.B., Arnulf I., Hu M.T.M., Dauvilliers Y., Hogl B., Stefani A., Monaca C.C., Plazzi G., Antelmi E., Ferini-Strambi L., Heidbreder A., Rudakou U., Cochen De Cock V., Young P., Wolf P., Oliva P., Zhang X.K., Greenbaum L., Liong C., Gagnon J.-F., Desautels A., Hassin-Baer S., Montplaisir J.Y., Dupre N., Rouleau G.A., Fon E.A., Trempe J.-F., Lamoureux G., Alcalay R.N., and Gan-Or Z.

Subjects
0301 basic medicine, Male, Models, Molecular, Potassium Channels, Synucleinopathies, Genome-wide association study, REM Sleep Behavior Disorder, MESH: Glucosylceramidase, MESH: Genotype, 0302 clinical medicine, TMEM175/GAK/DGKQ, genetics, MESH: Molecular Dynamics Simulation, Parkinson, Genetics, MESH: Aged, MESH: Middle Aged, synucleinopaties, MESH: Polymorphism, Single Nucleotide, MESH: Genetic Predisposition to Disease, Parkinson Disease, MESH: Potassium Channels, Middle Aged, MESH: Case-Control Studies, Transmembrane protein, Neurology, MESH: Synucleinopathies, Glucosylceramidase, [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], Female, synucleinopathies, MESH: Models, Molecular, Adult, Genotype, Locus (genetics), Single-nucleotide polymorphism, Biology, Molecular Dynamics Simulation, Polymorphism, Single Nucleotide, 03 medical and health sciences, Humans, Genetic Predisposition to Disease, Homology modeling, Genetic association, Aged, MESH: Humans, MESH: Adult, MESH: Male, 030104 developmental biology, REM sleep behavior disorder, MESH: REM Sleep Behavior Disorder, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Case-Control Studies, Neurology (clinical), Lysosomes, Glucocerebrosidase, MESH: Female, 030217 neurology & neurosurgery, synucleinopathie, MESH: Parkinson Disease, MESH: Lysosomes
Abstract

Objective The TMEM175/GAK/DGKQ locus is the 3rd strongest risk locus in genome-wide association studies of Parkinson disease (PD). We aimed to identify the specific disease-associated variants in this locus, and their potential implications. Methods Full sequencing of TMEM175/GAK/DGKQ followed by genotyping of specific associated variants was performed in PD (n = 1,575) and rapid eye movement sleep behavior disorder (RBD) patients (n = 533) and in controls (n = 1,583). Adjusted regression models and a meta-analysis were performed. Association between variants and glucocerebrosidase (GCase) activity was analyzed in 715 individuals with available data. Homology modeling, molecular dynamics simulations, and lysosomal localization experiments were performed on TMEM175 variants to determine their potential effects on structure and function. Results Two coding variants, TMEM175 p.M393T (odds ratio [OR] = 1.37, p = 0.0003) and p.Q65P (OR = 0.72, p = 0.005), were associated with PD, and p.M393T was also associated with RBD (OR = 1.59, p = 0.001). TMEM175 p.M393T was associated with reduced GCase activity. Homology modeling and normal mode analysis demonstrated that TMEM175 p.M393T creates a polar side-chain in the hydrophobic core of the transmembrane, which could destabilize the domain and thus impair either its assembly, maturation, or trafficking. Molecular dynamics simulations demonstrated that the p.Q65P variant may increase stability and ion conductance of the transmembrane protein, and lysosomal localization was not affected by these variants. Interpretation Coding variants in TMEM175 are likely to be responsible for the association in the TMEM175/GAK/DGKQ locus, which could be mediated by affecting GCase activity. ANN NEUROL 2020;87:139-153.

Published
2018

8. Full sequencing and haplotype analysis of MAPT in Parkinson's disease and rapid eye movement sleep behavior disorder

Author

Li, J, Ruskey, J, Arnulf, I, Dauvilliers, Y, Hu, M, Högl, B, Leblond, C, Zhou, S, Ambalavanan, A, Ross, J, Bourassa, C, Spiegelman, D, Laurent, S, Stefani, A, Charley Monaca, C, Cochen De Cock, V, Boivin, M, Ferini-Strambi, L, Plazzi, G, Antelmi, E, Young, P, Heidbreder, A, Labbe, C, Ferman, T, Dion, P, Fan, D, Desautels, A, Gagnon, J, Dupré, N, Fon, E, Montplaisir, J, Boeve, B, Postuma, R, Rouleau, G, Ross, O, Gan-Or, Z, Li, J., Ruskey, J. A., Arnulf, I., Dauvilliers, Y., M. T. M., Hu, Hogl, B., Leblond, C. S., Zhou, S., Ambalavanan, A., Ross, J. P., Bourassa, C. V., Spiegelman, D., Laurent, S. B., Stefani, A., Charley Monaca, C., Cochen De Cock, V., Boivin, M., Ferini-Strambi, L., Plazzi, G., Antelmi, E., Young, P., Heidbreder, A., Labbe, C., Ferman, T. J., Dion, P. A., Fan, D., Desautels, A., Gagnon, J. -F., Dupre, N., Fon, E. A., Montplaisir, J. Y., Boeve, B. F., Postuma, R. B., Rouleau, G. A., Ross, O. A., Gan-Or, Z., Service des Pathologies du sommeil [CHU Pitié-Salpêtrière], 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), Département de neurologie [Montpellier], Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Gui de Chauliac [Montpellier]-Université de Montpellier (UM), Neuropsychiatrie : recherche épidémiologique et clinique (PSNREC), Université Montpellier 1 (UM1)-Université de Montpellier (UM)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de neurophysiologie clinique (CHRU Lille), Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Euromov (EuroMov), Université de Montpellier (UM), Clinique Beau Soleil [Montpellier], Li, Jiao, Ruskey, Jennifer A., Arnulf, Isabelle, Dauvilliers, Yve, Hu, Michele T.M., Högl, Birgit, Leblond, Claire S., Zhou, Sirui, Ambalavanan, Amirthagowri, Ross, Jay P., Bourassa, Cynthia V., Spiegelman, Dan, Laurent, Sandra B, Stefani, Ambra, Charley Monaca, Christelle, Cochen De Cock, Valérie, Boivin, Michel, Ferini-Strambi, Luigi, Plazzi, Giuseppe, Antelmi, Elena, Young, Peter, Heidbreder, Anna, Labbe, Catherine, Ferman, Tanis J., Dion, Patrick A., Fan, Dongsheng, Desautels, Alex, Gagnon, Jean-Françoi, Dupré, Nicola, Fon, Edward A., Montplaisir, Jacques Y., Boeve, Bradley F., Postuma, Ronald B., Rouleau, Guy A., Ross, Owen A., and Gan-Or, Ziv

Subjects
Lewy Body Disease, Male, Principal Component Analysis, Genotype, Parkinson's disease, REM sleep behavior disorder, Parkinson Disease, tau Proteins, Middle Aged, Polymorphism, Single Nucleotide, Cohort Studies, Neurology, Gene Frequency, genetics, MAPT, Neurology (clinical), Humans, [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], Female, Genetic Predisposition to Disease, genetic, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, Aged
Abstract

Background: MAPT haplotypes are associated with PD, but their association with rapid eye movement sleep behavior disorder is unclear. Objective: To study the role of MAPT variants in rapid eye movement sleep behavior disorder. Methods: Two cohorts were included: (A) PD (n = 600), rapid eye movement sleep behavior disorder (n = 613) patients, and controls (n = 981); (B) dementia with Lewy bodies patients with rapid eye movement sleep behavior disorder (n = 271) and controls (n = 950). MAPT‐associated variants and the entire coding sequence of MAPT were analyzed. Age‐, sex‐, and ethnicity‐adjusted analyses were performed to examine the association between MAPT, PD, and rapid eye movement sleep behavior disorder. Results: MAPT‐H2 variants were associated with PD (odds ratios: 0.62‐0.65; P = 0.010‐0.019), but not with rapid eye movement sleep behavior disorder. In PD, the H1 haplotype odds ratio was 1.60 (95% confidence interval: 1.12‐2.28; P = 0.009), and the H2 odds ratio was 0.68 (95% confidence interval: 0.48‐0.96; P = 0.03). The H2/H1 haplotypes were not associated with rapid eye movement sleep behavior disorder. Conclusions: Our results confirm the protective effect of the MAPT‐H2 haplotype in PD, and define its components. Furthermore, our results suggest that MAPT does not play a major role in rapid eye movement sleep behavior disorder, emphasizing different genetic background than in PD in this locus.

Published
2018

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