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Co-occurrence of restless legs syndrome and Parkin mutations in two families

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Abstract

Recent studies have suggested an association between restless legs syndrome (RLS) and Parkinson's disease (PD). We present a large multigenerational family and a smaller family with RLS. A Parkin mutation was found in 10 of 20 patients from both families with idiopathic RLS but was not considered causative. The clinical phenotype did not differ between RLS patients with and without a Parkin mutation. Inheritance of RLS was consistent with autosomal dominant transmission, and linkage analysis excluded all three known loci for RLS. © 2005 Movement Disorder Society

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