Abstract:
:Genomic triplication of the alpha-synuclein gene recently has been associated with familial Parkinson's disease in the Spellman-Muenter kindred. Here, we present an independent family, of Swedish-American descent, with hereditary early-onset parkinsonism with dementia due to alpha-synuclein triplication. Brain tissue available from affected individuals in both kindreds provided the opportunity to compare their clinical, pathological, and biochemical phenotypes. Of note, studies of brain mRNA and soluble protein levels demonstrate a doubling of alpha-synuclein expression, consistent with molecular genetic data. Pathologically, cornu ammonis 2/3 hippocampal neuronal loss appears to be a defining feature of this form of inherited parkinsonism. The profound implications of alpha-synuclein overexpression for idiopathic synucleinopathies are discussed.
journal_name
Ann Neuroljournal_title
Annals of neurologyauthors
Farrer M,Kachergus J,Forno L,Lincoln S,Wang DS,Hulihan M,Maraganore D,Gwinn-Hardy K,Wszolek Z,Dickson D,Langston JWdoi
10.1002/ana.10846keywords:
subject
Has Abstractpub_date
2004-02-01 00:00:00pages
174-9issue
2eissn
0364-5134issn
1531-8249journal_volume
55pub_type
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