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  • Title: MTAP gene is associated with ischemic stroke in Chinese Hans.
    Author: Li SJ, Hu WL, Liu DT, Sun FH, Zhang Q, Yang XC, Yu SZ, Jin L, Wang XF.
    Journal: J Neurol Sci; 2009 Sep 15; 284(1-2):103-7. PubMed ID: 19427650.
    Abstract:
    Common pathogenic mechanisms may be involved in the prevalence of ischemic stroke and coronary heart disease. Recently, genome-wide association (GWA) studies identified a chromosome region (9p21) that confers the risk of coronary heart disease. In a hospital-based case-control study conducted in Chinese Hans, we tested the hypothesis that the methylthioadenosine phosphorylase (MTAP) gene on chromosome region 9p21 is involved in the aetiology of ischemic stroke using a tagging single nucleotide polymorphism (tSNP) strategy. We observed significant association of rs10118757 in the MTAP gene with ischemic stroke. The G allele of rs10118757 was associated with an increased risk of stroke, with a per-allele OR of 1.31(95% CI, 1.04-1.65, p=0.025). The association remains after controlling for confounding factors including age, gender, body mass index, smoking, alcohol drinking, hypertension, diabetes, and hyperlipidaemia (OR=1.38, 95 CI, 1.02-1.88, p=0.039). In addition, the GA+GG genotype of rs10118757 was associated with the increased risk of an undetermined subtype of ischemic stroke (OR=2.14, 95 CI, 1.35-3.38, p=0.001). Further, we also observed the combined effects of rs10118757 with alcohol drinking and hypertension, which increased the risk of ischemic stroke. Our observations support the hypothesis that the MTAP gene may be involved in the prevalence of ischemic stroke in Chinese Hans.
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