title: [Genetics and clinical study of Chinese kindreds with dentatorubral pallidoluysian atrophy].
abstract: OBJECTIVE
  To investigate genetics and clinical characteristics of dentatorubral-pallidoluysian atrophy (DRPLA) in Chinese kindreds.
  
  
  METHODS
  Fragment analysis with laser-induced fluorescence in capillary electrophoresis was performed for the cytosine-adenine-guanine (CAG) repeats of DRPLA gene in 708 probands of autosomal dominant ataxia pedigrees and 119 sporadic ataxia cases.
  
  
  RESULTS
  Expanded CAG repeats of DRPLA gene were detected in probands of three ataxia pedigrees, with the numbers of repeats being 16/58, 16/58 and 14/54, respectively. In addition to ataxia, patients with adult-onset disease also exhibited spasm and neck torsion.
  
  
  CONCLUSIONS
  Only three cases of DRPLA have been identified among 827 cases, which suggested that DRPLA is a relatively rare subtype of SCA in Chinese population. Clinical variation among the patients suggested DRPLA has a wide spectrum of phenotype.
authors: China-Japan Friendship Hospital, Beijing, People's Republic of China.
authors: Xin
authors: X
authors: Zhang
authors: Ying
authors: Y
authors: Hao
authors: Wei-hong
authors: WH
authors: Gu
authors: Yuan-yuan
authors: YY
authors: Chen
authors: Jin
authors: J
authors: Zhang
authors: Guo-xiang
authors: GX
authors: Wang
authors: Kang
authors: K
authors: Wang
authors: Miao
authors: M
authors: Jin
authors: Xiao-hui
authors: XH
authors: Duan
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D044466:Asian People; D001921:Brain / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D002681:China; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009154:Mutation; D020191:Myoclonic Epilepsies, Progressive / Q000175:diagnosis* / Q000235:genetics*; D009419:Nerve Tissue Proteins / Q000235:genetics; D010375:Pedigree; D010641:Phenotype; D018911:Trinucleotide Repeats; D055815:Young Adult
chemical_list: D009419:Nerve Tissue Proteins; C095278:atrophin-1