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Published on: February 27, 2018
Molecular pathogenesis of movement disorders: are protein aggregates a common link in neuronal degeneration?
1Department of Neurology and Medical School, University of Tübingen, Germany.
Abstract:
Abnormal protein aggregation has been postulated to explain the molecular basis for many neurodegenerative diseases, including Alzheimer's disease, Parkinson's disease and prion diseases, as well as trinucleotide repeat disorders. The recent findings that mutations in alpha-synuclein lead to autosomal-dominant, early-onset Parkinson's disease in some families and that alpha-synuclein is found in Lewy bodies of all Parkinson's disease patients prompted the hypothesis that the pathophysiology of all Parkinson's disease patients starts with an abnormal folding of alpha-synuclein, producing excessive aggregation that overwhelms the antiaggregation mechanisms of the cell. The genetics of Parkinson's disease and polyglutamine repeat disorders and the evidence of abnormal processing and aggregation of the respective target proteins for the aetiology and pathogenesis in these diseases are reviewed.
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