To delineate the full phenotypic spectrum, discriminative features, piloting longitudinal progression data, and sample size calculations of replication factor complex subunit 1 (RFC1) repeat expansions, recently identified as causing cerebellar ataxia, neuropathy, vestibular areflexia syndrome (CANVAS). ⋯ This study provides Class II evidence that RFC1 repeat expansions are associated with CANVAS and ACC.
Andreas Traschütz, Andrea Cortese, Selina Reich, Natalia Dominik, Jennifer Faber, Heike Jacobi, Annette M Hartmann, Dan Rujescu, Solveig Montaut, Andoni Echaniz-Laguna, Sevda Erer, Valerie Cornelia Schütz,... more Alexander A Tarnutzer, Marc Sturm, Tobias B Haack, Nadège Vaucamps-Diedhiou, Helene Puccio, Ludger Schöls, Thomas Klockgether, Bart P van de Warrenburg, Martin Paucar, Dagmar Timmann, Ralf-Dieter Hilgers, Jose Gazulla, Michael Strupp, German Moris, Alessandro Filla, Henry Houlden, Mathieu Anheim, Jon Infante, A Nazli Basak, Matthis Synofzik, and RFC1 Study Group. less
From the Department of Neurodegenerative Diseases (A.T., S.R., L.S., M. Synofzik), Hertie-Institute for Clinical Brain Research and Center of Neurology, and German Center for Neurodegenerative Diseases (DZ... more NE) (A.T., S.R., L.S., M. Synofzik), University of Tübingen, Germany; MRC Centre for Neuromuscular Diseases (A.C., N.D., H.H.), Department of Neuromuscular Diseases, National Hospital for Neurology and Neurosurgery, UCL Queen Square Institute of Neurology, London, UK; Department of Brain and Behaviour Sciences (A.C.), University Pavia, Italy; Department of Neurology (J.F., T.K.), University Hospital Bonn; German Center for Neurodegenerative Diseases (DZNE) (J.F., H.J., T.K.), Bonn; Department of Neurology (H.J.), University Hospital of Heidelberg; Department of Psychiatry, Psychotherapy and Psychosomatics (A.M.H., D.R.), University of Halle, Germany; Département de Neurologie (S.M., M.A.), Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg; Department of Neurology (A.E.-L.), APHP, CHU de Bicêtre; French National Reference Center for Rare Neuropathies (NNERF) (A.E.-L.); Inserm U1195 and Paris-Sud University (A.E.-L.), Le Kremlin Bicêtre, France; Medical Faculty (S.E.), Department of Neurology, Uludag University, Bursa, Turkey; University of Zurich (V.C.S., A.A.T.); Department of Neurology (V.C.S., A.A.T.), University Hospital Zurich, Switzerland; Institute of Medical Genetics and Applied Genomics (M. Sturm, T.B.H.) and Center for Rare Diseases (T.B.H.), University of Tübingen, Germany; Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC) (N.V.-D., H.P.); INSERM (N.V.-D., H.P.), U1258; CNRS (N.V.-D., H.P.), UMR7104, Illkirch; Université de Strasbourg (H.P.), France; Department of Neurology (B.P.v.d.W.), Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, the Netherlands; Department of Neurology (M.P.), Karolinska University Hospital; Department of Clinical Neuroscience (M.P.), Karolinska Institute, Stockholm, Sweden; Department of Neurology (D.T.), Essen University Hospital, University of Duisburg-Essen, Essen; Department of Medical Statistics (R.-D.H.), RWTH Aachen University, Germany; Department of Neurology (J.G.), Hospital Universitario Miguel Servet. Zaragoza, Spain; Department of Neurology (M. Strupp), University Hospital, and German Center for Vertigo and Balance Disorders (M.Strupp), Ludwig Maximilians University, Munich, Germany; Neurology Service (G.M.), Hospital Unversitario Central de Asturias (HUCA), SESPA, Oviedo, Spain; Department of Neurosciences and Reproductive and Odontostomatological Sciences (A.F.), Federico II University Naples, Italy; Institute of Genetics and Molecular and Cellular Biology (M.A.), INSERM-U964/CNRS-UMR7104, University of Strasbourg, Illkirch; Strasbourg Federation of Translational Medicine (M.A.), University of Strasbourg, Strasbourg, France; Service of Neurology (J.I.), University Hospital "Marqués de Valdecilla (IDIVAL)," University of Cantabria, "Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED)," Santander, Spain; and Suna and Inan Kıraç Foundation (A.N.B.), Neurodegeneration Research Laboratory, KUTTAM, Koç University School of Medicine, Istanbul, Turkey. less