title: [Association of estrogen receptor gene polymorphism with cerebral infarction, a case-control study].
abstract: OBJECTIVE
  To explore the association between estrogen receptor (ER) gene PvuII and XbaI polymorphisms and cerebral infarction among Chinese Han people.
  
  
  METHODS
  Samples of peripheral blood white cell were extracted among 234 patients with cerebral infarction, aged 63.9 +/- 10.3, and 259 controls without cerebrovascular disease, aged 59.2 +/- 9.2, all of Chinese Han nationality. PCR-RFLP and genotyping of ER PvuII and XbaI polymorphisms were performed. Multiple Logistic regression analysis was made to explore the risk factors for cerebral infarction.
  
  
  RESULTS
  After adjustment for major confounders including age, gender, smoking, alcohol drinking, education, history of hypertension, diabetes mellitus, coronary artery disease and hyperlipoidemia, multiple Logistic regression analysis showed that: (1) The Pp genotype of ER PvuII polymorphism increased the risk of cerebral infarction significantly (OR = 1.97, 95% CI: 1.21 - 3.21); (2) The ER XbaI polymorphism was not in association with cerebral infarction significantly; (3) The PPXx/Ppxx genotypes increased the risk of cerebral infarction significantly (OR = 1.67, 2.52 and 2.18 respectively, P < 0.05) before or after all subjects were stratified by the history of hypertension or hyperlipoidemia; and (4) The positive interaction between the ER PvuII polymorphism and the presence of hypertension or diabetes or hyperlipoidemia could increase the risk of cerebral infarction significantly.
  
  
  CONCLUSIONS
  ER gene may be one of the genetic candidate genes for cerebral infarction among Chinese Han population.
authors.affiliation: Department of Neurology, Third Hospital, Peking University, Beijing 100083, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Ruping
authors.initials: R
authors.lastname: Xie
authors.forename: Yinhua
authors.initials: Y
authors.lastname: Wang
authors.forename: Dafang
authors.initials: D
authors.lastname: Chen
authors.forename: Guoying
authors.initials: G
authors.lastname: Wang
authors.forename: Xiping
authors.initials: X
authors.lastname: Xu
mesh_terms: D000368:Aged; D016022:Case-Control Studies; D002544:Cerebral Infarction / Q000235:genetics / Q000473:pathology*; D002681:China; D004247:DNA / Q000235:genetics / Q000378:metabolism; D015252:Deoxyribonucleases, Type II Site-Specific / Q000378:metabolism; D005787:Gene Frequency; D005838:Genotype; D006801:Humans; D008875:Middle Aged; D011110:Polymorphism, Genetic; D011960:Receptors, Estrogen / Q000235:genetics*
chemical_list: D011960:Receptors, Estrogen; D004247:DNA; C025580:endodeoxyribonuclease XBAI; C025630:CAGCTG-specific type II deoxyribonucleases; D015252:Deoxyribonucleases, Type II Site-Specific