血红素加氧酶1基因多态性与血压水平的关系分析

目的 探讨血红素加氧酶1基因多态性与血压水平的关系.方法 采用标签SNP策略,选择血红素加氧酶1基因的3个标签SNP位点进行研究.在503例原发性高血压患者中对这3个位点进行基因分型,采用方差分析比较各位点不同基因型个体血压水平的差异,采用haplo.stats软件计算单体型频率并检验其与血压水平的关系.结果 血红素加氧酶1基因rs2071749位点A等位基因携带者收缩压和舒张压水平分别为159.5 mm Hg和97.6 mm Hg,GG基因型携带者收缩压和舒张压水平分别为168.5mm Hg和101.3mm Hg,差异有统计学意义(P<0.05).多因素回归分析进一步证实了该结果 .单体型分析结果 显示在调整年龄、性别、体质指数、吸烟和饮酒等危险因素后,含有rs2071749 A等位基因的单体型T-T-A与收缩压水平和舒张压水平均显著相关.结论 血红素加氧酶1基因多态可能对血压水平有一定的影响.

Effect of the genetic variants of heme oxygenase-1 gene on blood pressure level in hypertensive pailents

Objective To assess the relationship between the polymorphisms of heme oxygenase-1 gene and blood pressure level.Methods With the whole-gene based tagging SNP approach,3 tag SNPs of heme oxygenase-1 gene were selected for study.These tag SNPs were genotyped in 503 essential hypertension cases Blood pressure lev-els among different genotypes of each SNP were compared with ANOVA.The haplo.stats program wa8 employed to test haplotype frequency with blood pressure level.Results Subjects with rs2071749 A allele had the lower blood pressure levels than subjects with GG genotypes(SBP:159.5 mm Hg vs.168.5 mm Hg and DBP:97.6 mm Hg vs.101.3 mm Hg respectively.P<0.05).In the haplotype analyses.Haplotype T-T-A which carried the rs2071749 A allele was found significantly associated with SBP and DBP after adjustment for age,gender,body mass index.8n10k.illg and drinking·Conclusion The genetic variants of heine oxygenase.1 gene misht be associated with blood pres-sure levels.