Alpha‐synuclein gene duplication: Marked intrafamilial variability in two novel pedigrees

Abstract excerpt

BACKGROUND: Multiplications of the SNCA gene that encodes alpha-synuclein are a rare cause of autosomal dominant Parkinson's disease (PD). METHODS: Here, we describe 2 novel families in which there is autosomal dominant PD associated with SNCA duplication, and we compare the clinical features of all known patients carrying 3 or 4 SNCA copies. RESULTS: Affected members in family A presented with early onset PD...

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