title: Relationship between CYP17A1 Genetic Polymorphism and Essential Hypertension in a Chinese Population.
abstract: The relationship between CYP17A1 genetic polymorphisms and essential hypertension (EH) remains unclear. The aim of this study was to investigate the association of CYP17A1 genetic polymorphisms with EH in Han and Uighur populations in China. A Han population including 558 people (270 EH patients and 288 controls) and a Uighur population including 473 people (181 EH patients and 292 controls) were selected. Five single-nucleotide polymorphisms (SNPs) (rs4919686, rs1004467, rs4919687, rs10786712, and rs2486758) were genotyped using real-time PCR (TaqMan). In the Uighur population, for the total and the men, rs4919686, rs4919687 and rs10786712 were found to be associated with EH (rs4919686: P≤0.02, rs4919687: P≤0.002, rs10786712: P≤0.004, respectively). The difference remained statistically significant after the multivariate adjustment (all P<0.05). The overall distributions of the haplotypes established by SNP1-SNP3, SNP1-SNP4, SNP1-SNP3-SNP5 and SNP1-SNP4-SNP5 were significantly different between the EH patients and the control subjects (for the total: P=0.013, P=0.008, P=0.032, P=0.010, for men: P<0.001, P=0.001, P=0.010, P=0.00). In the Han population, for men, rs2486758 was found to be associated with EH in a recessive model (P=0.007); the significant difference was not retained after the adjustment for the covariates (date not shown). The A allele of rs4919686 could be a susceptible genetic marker, and the T allele of rs10786712 could be a protective genetic marker of EH. The AC genotype of rs4919686, the AG genotype of rs4919687 and the TT genotype of rs10786712 could be protective genetic markers of EH.
authors.affiliation: Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054 China.
authors.forename: Chuan-Fang
authors.initials: CF
authors.lastname: Dai
authors.affiliation: Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054 China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Xie
authors.affiliation: Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054 China.
authors.forename: Yi-Tong
authors.initials: YT
authors.lastname: Ma
authors.affiliation: Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054 China.
authors.forename: Yi-Ning
authors.initials: YN
authors.lastname: Yang
authors.affiliation: Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054 China.
authors.forename: Xiao-Mei
authors.initials: XM
authors.lastname: Li
authors.affiliation: Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054 China.
authors.forename: Zhen-Yan
authors.initials: ZY
authors.lastname: Fu
authors.affiliation: Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054 China.
authors.forename: Fen
authors.initials: F
authors.lastname: Liu
authors.affiliation: Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054 China.
authors.forename: Bang-Dang
authors.initials: BD
authors.lastname: Chen
authors.affiliation: Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054 China.
authors.forename: Min-Tao
authors.initials: MT
authors.lastname: Gai
keywords: CYP17A1 gene; case-control study; essential hypertension; single nucleotide polymorphism