The impact of the AHSG genetic polymorphism on the risk of ischemic stroke: a case-control study.

Ischemic stroke (IS) is a complex disease caused by an obstruction within a brain-supplying blood vessel that involves both genetic and environmental factors. In this study, we evaluated the association of genetic polymorphisms in the AHSG gene with ischemic stroke risk in the Chinese population. A case-control study was conducted that included 477 nephropathy patients and 490 healthy controls. Chi-squared tests and a genetic model were used to evaluate associations. In the genetic model analysis, we identified that the SNP of rs2070634 in the AHSG gene was associated with a 1.37-fold increase the risk of stroke in the co-dominant model (adjusted, the "G/T" genotype), and a 1.40-fold increase the risk of stroke in the Over-dominant model (adjusted, the "G/T" genotype), respectively. The rs2518136 in the AHSG gene was associated with a 1.37-fold increase the risk of stroke in the co-dominant model (adjusted, the "T/C" genotype) and a 1.41-fold decrease the risk of stroke in the over-dominant model (adjusted, the "T/C" genotype), respectively. We found four SNPs (rs2248690, rs2070634, rs4917 and rs2518136) show a strong linkage, but the AHSG haplotype was not found to be associated with a risk of ischemic stroke. The present study suggests that the AHSG polymorphism may contribute to an increased risk of ischemic stroke.