Abstract:
:Hereditary dentatorubral-pallidoluysian atrophy (DRPLA) is an autosomal dominant neurologic disorder characterized by variable combinations of myoclonus, epilepsy, cerebellar ataxia, choreoathetosis and dementia. By specifically searching published brain cDNA sequences for the presence of CAG repeats we identified unstable expansion of a CAG in a gene on chromosome 12 in all the 22 DRPLA patients examined. A good correlation between the size of the CAG repeat expansion and the ages of disease onset is found in this group. Patients with earlier onset tended to have a phenotype of progressive myoclonus epilepsy and larger expansions. We propose that the wide variety of clinical manifestations of DRPLA can now be explained by the variable unstable expansion of the CAG repeat.
journal_name
Nat Genetjournal_title
Nature geneticsauthors
Koide R,Ikeuchi T,Onodera O,Tanaka H,Igarashi S,Endo K,Takahashi H,Kondo R,Ishikawa A,Hayashi Tdoi
10.1038/ng0194-9subject
Has Abstract,Author List Incompletepub_date
1994-01-01 00:00:00pages
9-13issue
1eissn
1061-4036issn
1546-1718journal_volume
6pub_type
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