May 07, 2019; 92 (19) Article
FSHD1 and FSHD2 form a disease continuum
Sabrina Sacconi, Audrey Briand-Suleau, Marilyn Gros, Christian Baudoin, Richard J.L.F. Lemmers, Sophie Rondeau, Nadira Lagha, Pilvi Nigumann, Chiara Cambieri, Angela Puma, Françoise Chapon, Tanya Stojkovic, Christophe Vial, Françoise Bouhour, Michelangelo Cao, Elena Pegoraro, Philippe Petiot, Anthony Behin, Bras Marc, Bruno Eymard, Andoni Echaniz-Laguna, Pascal Laforet, Leonardo Salviati, Marc Jeanpierre, View ORCID ProfileGaël Cristofari, View ORCID ProfileSilvère M. van der Maarel
First published April 12, 2019, DOI: https://doi.org/10.1212/WNL.0000000000007456
Sabrina Sacconi
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Audrey Briand-Suleau
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Marilyn Gros
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Christian Baudoin
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Richard J.L.F. Lemmers
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Sophie Rondeau
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Nadira Lagha
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Pilvi Nigumann
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Chiara Cambieri
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Angela Puma
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Françoise Chapon
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Tanya Stojkovic
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Christophe Vial
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Françoise Bouhour
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Michelangelo Cao
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Elena Pegoraro
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Philippe Petiot
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Anthony Behin
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Bras Marc
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Bruno Eymard
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Andoni Echaniz-Laguna
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Pascal Laforet
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Leonardo Salviati
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Marc Jeanpierre
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Gaël Cristofari
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
Silvère M. van der Maarel
From the Peripheral Nervous System (S.S., M.G., C.C., A.P.), Muscle & ALS Department, Pasteur 2 Hospital, Centre Hospitalier Universitaire de Nice, and Institute for Research on Cancer and Aging of Nice (S.S., C.B., N.L., P.N., G.C.), CNRS, INSERM, Université Côte d’Azur; Department of Genetics and Molecular Biology (A.B.-S., S.R., M.J.), Cochin Hospital, Paris, France; Department of Human Genetics (R.J.L.F.L., S.M.v.d.M.), Leiden University Medical Center, the Netherlands; Rare Neuromuscular Diseases Centre (C.C.), Department of Human Neuroscience, Sapienza University of Rome, Italy; Pathology Department (F.C.), CHRU of Caen, INSERM U1075, University of Caen, Normandy; Myology Institute (T.S., A.B., B.E.), Center of Research in Myology, APHP, Sorbonne Université, UPMC Univ Paris 06, INSERM UMRS974, CNRS FRE3617, Paris; Electromyography and Neuromuscular Department (C.V., F.B., P.P.), Neurologic Hospital, Lyon East Hospital Group, Lyon-Bron, France; Neuromuscular Center, Department of Neuroscience (M.C., E.P.), and Clinical Genetics Unit, Department of Women's and Children's Health (L.S.), University of Padova, Italy; Institut Imagine, Imagine Bioinfomatics Platform (M.B.), Paris Descartes University; Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; Nord/Est/Ile de France Neuromuscular Center (P.L.), Neurology Department, Raymond Poincaré Teaching Hospital, Garches; INSERM U1179 (P.L.), END-ICAP, Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux, France; and IRP Città della Speranza (L.S.), Padova, Italy.
FSHD1 and FSHD2 form a disease continuum
Sabrina Sacconi, Audrey Briand-Suleau, Marilyn Gros, Christian Baudoin, Richard J.L.F. Lemmers, Sophie Rondeau, Nadira Lagha, Pilvi Nigumann, Chiara Cambieri, Angela Puma, Françoise Chapon, Tanya Stojkovic, Christophe Vial, Françoise Bouhour, Michelangelo Cao, Elena Pegoraro, Philippe Petiot, Anthony Behin, Bras Marc, Bruno Eymard, Andoni Echaniz-Laguna, Pascal Laforet, Leonardo Salviati, Marc Jeanpierre, Gaël Cristofari, Silvère M. van der Maarel
Neurology May 2019, 92 (19) e2273-e2285; DOI: 10.1212/WNL.0000000000007456
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Abstract
Objective To compare the clinical features of patients showing a classical phenotype of facioscapulohumeral muscular dystrophy (FSHD) with genetic and epigenetic characteristics of the FSHD1 and FSHD2 loci D4Z4 and SMCHD1.
Methods This is a national multicenter cohort study. We measured motor strength, motor function, and disease severity by manual muscle testing sumscore, Brooke and Vignos scores, clinical severity score (CSS), and age-corrected CSS, respectively. We correlated these scores with genetic (D4Z4 repeat size and haplotype; SMCHD1 variant status) and epigenetic (D4Z4 methylation) parameters.
Results We included 103 patients: 54 men and 49 women. Among them, we identified 64 patients with FSHD1 and 20 patients with FSHD2. Seven patients had genetic and epigenetic characteristics of FSHD1 and FSHD2, all carrying repeats of 9–10 D4Z4 repeat units (RU) and a pathogenic SMCHD1 variant. In the remaining patients, FSHD was genetically excluded or remained unconfirmed. All clinically affected SMCHD1 mutation carriers had a D4Z4 repeat of 9–16 RU on a disease permissive 4qA haplotype. These patients are significantly more severely affected by all clinical scales when compared to patients with FSHD1 with upper-sized FSHD1 alleles (8–10 RU).
Conclusion The overlap between FSHD1 and FSHD2 patients in the 9–10 D4Z4 RU range suggests that FSHD1 and FSHD2 form a disease continuum. The previously established repeat size threshold for FSHD1 (1–10 RU) and FSHD2 (11–20 RU) needs to be reconsidered.
Clinicaltrials.gov identifier NCT01970735.
Glossary
- CSS=
- clinical severity score;
- FSHD=
- facioscapulohumeral dystrophy;
- FSHD1=
- facioscapulohumeral dystrophy type 1;
- FSHD2=
- facioscapulohumeral dystrophy type 2;
- MMT=
- manual muscle testing;
- MNP=
- multi-nucleotide polymorphism;
- NGS=
- next-generation sequencing;
- RU=
- repeat units;
- SNP=
- single-nucleotide polymorphism;
- SNV=
- single nucleotide variant;
- SSLP=
- simple sequence-length polymorphism;
- TSVC=
- Torrent Suite Variant Caller
Footnotes
Go to Neurology.org/N for full disclosures. Funding information and disclosures deemed relevant by the authors, if any, are provided at the end of the article.
↵* These authors contributed equally to the manuscript.
Editorial, page 881
- Received September 7, 2018.
- Accepted in final form January 11, 2019.
- © 2019 American Academy of Neurology
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