4.Association of genetic polymorphism in the advanced glycation endproduct gene with genetic susceptibility to ischemic stroke
Ming SHENG ; Huixia LIU ; Yanliu ZHANG
Chinese Journal of Geriatrics 2016;35(2):174-178
Objective To investigate the association of genetic polymorphism in the advanced glycation endproduct (RAGE) gene with genetic susceptibility to ischemic stroke.Methods A case-control study was conducted with 124 ischemic stroke patients serving as the stroke group and 125 healthy volunteers serving as the control group.Three common polymorphisms in the RAGE gene,82G/S (rs2070600),-429T/C (rs1800625) and-374T/A (rs1800624),were genotyped by the polymerase chain reaction-restriction fragment length polymorphism (PCR-RELP) method.The association between the three polymorphisms and genetic susceptibility to ischemic stroke was further analyzed by logistic regression analysis.Results The body mass index (BMI),diastolic blood pressure,blood lipids levels,and the percentage of smokers were significantly higher in the stroke group than in the control group (each P＜0.05).At the 82 position,the frequencies of the genotypes GG,GS and SS were 10％,48％ and 42％,respectively.At the 429 position,the frequencies of the genotypes TT,TC and CC were 15％,44％ and 41％,respectively.At the 374 position,the frequencies of the genotypes TT,TA and AA were 8％,41％ and 50％,respectively.After adjusting for confounding factors including age,gender,smoking and blood pressure,the genotype frequencies of SS and S alleles at 82G/S of the RAGE gene were higher in the stroke group than in control group (SS:OR=2.14,95％ CI:1.37-3.51;S:OR=1.96,95％ CI:1.24-3.34),while no significant differences of genotype frequencies of the 429T/C and-374T/T polymorphisms were observed between the stroke group and the control group (each P＞0.05).Conclusions The 82G/S gene polymorphism of the RAGE gene has correlations with ischemic stroke in the Henan Han population,with the S allele as the risk factor for ischemic stroke.However,no clear association between the 429T/C or-374T/A polymorphisms of the RAGE gene and ischemic stroke is identified in the Han population.
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