Davide Pareyson, Tanya Stojkovic, Mary M Reilly, Sarah Leonard-Louis, Matilde Laurà, Julian Blake, Yesim Parman, Esra Battaloglu, Meriem Tazir, Mounia Bellatache, Nathalie Bonello-Palot, Nicolas Lévy, Sabrina Sacconi, Raquel Guimarães-Costa, Sharham Attarian, Philippe Latour, Guilhem Solé, André Megarbane, Rita Horvath, Giulia Ricci, Byung-Ok Choi, Angelo Schenone, Chiara Gemelli, Alessandro Geroldi, Mario Sabatelli, Marco Luigetti, Lucio Santoro, Fiore Manganelli, Aldo Quattrone, Paola Valentino, Tatsufumi Murakami, Steven S Scherer, Lois Dankwa, Michael E Shy, Chelsea J Bacon, David N Herrmann, Alberto Zambon, Irene Tramacere, Chiara Pisciotta, Stefania Magri, Stefano C Previtali, Alessandra Bolino
OBJECTIVE: Charcot-Marie-Tooth (CMT) disease 4B1 and 4B2 (CMT4B1/B2) are characterized by recessive inheritance, early onset, severe course, slowed nerve conduction, and myelin outfoldings. CMT4B3 shows a more heterogeneous phenotype. All are associated with myotubularin-related protein (MTMR) mutations. We conducted a multicenter, retrospective study to better characterize CMT4B. METHODS: We collected clinical and genetic data from CMT4B subjects in 18 centers using a predefined minimal data set including Medical Research Council (MRC) scores of nine muscle pairs and CMT Neuropathy Score...
July 2019: Annals of Neurology