title: [Relationship between the microsatellite polymorphism of CYP11 alpha gene and the pathogenesis of hyperandrogenism of polycystic ovary syndrome in Chinese].
abstract: OBJECTIVE
  To explore the association between the microsatellite polymorphism in the promoter region of CYP11 alpha gene and hyperandrogenism of polycystic ovary syndrome (PCOS).
  
  
  METHODS
  Eighty-six cases of PCOS and 50 normal women as controls were studied. Polymerase chain reaction and electrophoresis on polyacrylamide gel were employed to detect the polymorphism of CYP11 alpha gene and its frequency distribution. At the same time, the relationships of CYP11 alpha alleles to serum testosterone levels in PCOS were compared.
  
  
  RESULTS
  Four different CYP11 alpha (tttta)n alleles were identified, corresponding to 4, 6, 8 and 9 repeat-units alleles. The frequency distribution profiles were 0.17, 0.31, 0.39, 0.13 and 0.22, 0.35, 0.33, 0.10 in PCOS group and control group respectively, showing no statistically significant difference between the two groups. There were no correlations between the polymorphism of CYP11 alpha gene and the serum testosterone levels of PCOS patients.
  
  
  CONCLUSIONS
  Micro-satellite polymorphism (tttta)n of gene CYP11 alpha exists in Chinese women and the polymorphism does not relate to the pathogenesis of hyperandrogenism in women with PCOS.
authors.affiliation: Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030 P. R. China. litan200488@yahoo.com.cn
authors.forename: Li
authors.initials: L
authors.lastname: Tan
authors.forename: Guijin
authors.initials: G
authors.lastname: Zhu
mesh_terms: D000328:Adult; D044466:Asian People / Q000235:genetics; D002681:China; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease / Q000235:genetics; D005838:Genotype; D006801:Humans; D017588:Hyperandrogenism / Q000209:etiology*; D008297:Male; D018895:Microsatellite Repeats / Q000235:genetics*; D011085:Polycystic Ovary Syndrome / Q000150:complications / Q000208:ethnology / Q000235:genetics*; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic / Q000235:genetics*; D013252:Steroid 11-beta-Hydroxylase / Q000235:genetics*; D055815:Young Adult
chemical_list: D013252:Steroid 11-beta-Hydroxylase