title: [Association of GLu461ALa polymorphism of prostacyclin synthase gene with myocardial infarction in Uigur population].
abstract: OBJECTIVE
  To investigate the association between the polymorphism of prostacyclin synthase gene (CYP8A1) and myocardial infarction (MI) in Uigur population.
  
  
  METHODS
  Totally 210 patients with MI and 206 healthy control subjects were detected by polymerase chain reaction and restriction fragment length polymorphism. The serum 6-keto-PGF(1alpha) was detected with radioimmunoassay kit in all subjects.
  
  
  RESULTS
  The frequencies of CC, AC and AA were 0.024 (5/210), 0.124 (26/210) and 0.852 (179/210) in MI group while ones those 0.010 (2/206), 0.073 (15/206) and 0.917 (189/206) in the controls. There was no significant difference in frequencies of CC, AC and AA genotypes between controls and MI cases (chi(2) = 0.782, P > 0.05), but the frequency of CC + AC genotype in MI group [0.14 (31/210)] was higher than that in the controls [0.083 (17/206)] giving significant difference (chi(2) = 4.321, P = 0.031). The C allele frequency in the MI group [0.086 (36/420)] was higher than that in the controls [0.046 (19/412)] showing significant statistical difference (chi(2) = 5.284, P = 0.021). There was significant difference (t = 6.255, P < 0.01) in serum 6-keto-PGF(1alpha) level between MI group [(17.40 +/- 4.56) pg/ml] and control group [(20.34 +/- 5.02) pg/ml]. In the cases and control group, the serum 6-keto-PGF(1alpha) level of the persons with CC + AC genotype [(14.30 +/- 3.31) pg/ml, (18.31 +/- 4.62) pg/ml] was lower than those of AA genotypes [(19.34 +/- 5.51) pg/ml, (25.10 +/- 5.00) pg/ml], and the statistical significance was also observed (t' = 6.934, P < 0.05; t = 5.393, P < 0.01). Logistic regression analysis showed that the C allele of the CYP8A1 gene was an independent risk factor for MI (OR = 1.77; 95% CI: 1.06 - 2.05).
  
  
  CONCLUSIONS
  The C allele of CYP8A1 might be a risk factor of MI in Uigur population, and be resulting from the decrease of serum 6-keto-PGF(1alpha) level for gene variation.
authors.affiliation: Department of Cardiology, First Affiliated Hospital, Xinjiang Medical University, Urumqi, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Xie
authors.forename: Yi-tong
authors.initials: YT
authors.lastname: Ma
authors.forename: Zhen-yan
authors.initials: ZY
authors.lastname: Fu
authors.forename: Yi-ning
authors.initials: YN
authors.lastname: Yang
authors.forename: Xiang
authors.initials: X
authors.lastname: Ma
authors.forename: Ying-hong
authors.initials: YH
authors.lastname: Wang
authors.forename: Bang-dang
authors.initials: BD
authors.lastname: Chen
authors.forename: Fen
authors.initials: F
authors.lastname: Liu
mesh_terms: D000368:Aged; D000483:Alleles; D044466:Asian People / Q000235:genetics; D003577:Cytochrome P-450 Enzyme System / Q000235:genetics*; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D019746:Intramolecular Oxidoreductases / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000208:ethnology* / Q000235:genetics*; D011110:Polymorphism, Genetic; D044382:Population Groups
chemical_list: D003577:Cytochrome P-450 Enzyme System; D019746:Intramolecular Oxidoreductases; C022461:prostacyclin synthetase