Neurobiol Aging. 2012 Dec 27. pii: S0197-4580(12)00613-6. doi: 10.1016/j.neurobiolaging.2012.11.025. [Epub ahead of print]
Daoud H, Noreau A, Rochefort D, Paquin-Lanthier G, Gauthier MT, Provencher P, Pourcher E, Dupré N, Chouinard S, Jodoin N, Soland V, Fon EA, Dion PA, Rouleau GA.
Source
Centre of Excellence in Neuroscience of Université de Montréal (CENUM), CHUM Research Center and the Department of Medicine, Montreal, Quebec, Canada.
Abstract
Large repeat expansions in the C9orf72 gene were recently reported to be a major cause of familial amyotrophic lateral sclerosis and frontotemporal dementia. Given some of the clinical and pathologic overlap between these 2 diseases and Parkinson's disease, we sought to evaluate the presence of these expansions in a cohort of French-Canadian patients with Parkinson's disease. No pathologic expansion was found in our cohort of patients suggesting that C9orf72 repeat expansions do not play a major role in the pathogenesis of Parkinson's disease.
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