Sequence variants on chromosome 9p21 are associated with ischemic stroke and the lipids level in Chinese Han population

Journal of Stroke and Cerebrovascular Diseases : the Official Journal of National Stroke Association
Jiajia BiLi Yi

Abstract

Several studies have demonstrated that variants on chromosome 9p21 confer susceptibility to ischemic stroke (IS) disease. But, the results of variants' roles in Chinese IS population are blank or inconsistent. We performed a case-control analysis in 116 patients with IS and 118 non-IS controls of Han background to determine whether 4 single nucleotide polymorphisms were associated with IS. DNA was extracted from saliva using a magnetic nanoparticles-based method. After we adjusted for clinical parameters, we found that the rs10757278-GG genotype conveyed 1.88-fold (95% confidence interval [CI], 1.1-3.1; P = .015), the rs1537378-C allele conveyed 2.0-fold (95% CI, 1.2-3.5; P = .008), and the rs1333047-TT genotype conveyed 1.64-fold (95% CI, 1.02-2.6; P = .041) increased risk of IS, respectively. In addition, there is a significant difference of the lipids level between GG genotype compared with that of AA genotype in rs10757278 (P < .05). This study is the first one to demonstrate that the rs10757278-GG genotype, the rs1537378-C allele, and rs1333047-TT genotype are associated with IS in Chinese Han populations. More importantly, the variant of rs10757278 may have different degrees of influence on lipids level.

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