ACE I/D基因多态性与偏头痛易感性的Meta分析

目的 探讨血管紧张素转换酶基因(ACE)I/D位点基因多态性与偏头痛易感性之间的关系.方法 通过检索PubMed和EMBASE数据库收集已发表的有关ACE I/D基因多态性与偏头痛易感性关系的病例对照研究,通过固定效应模型或随机效应模型合并效应量OR和95%CI以评价ACE I/D多态性与偏头痛易感性的关联性,同时进行种族及偏头痛类型亚组分析.结果 Meta分析中纯合子模型(DD vs.Ⅱ:OR=1.21,95%CI:1.02~1.44,P=0.03;I2=47%)和显性模型(DD+DI vs.Ⅱ:OR=1.16,95%CI:1.01~1.33,P=0.04;I2=50%)均提示ACE I/D多态性与所有偏头痛的易感性呈正相关.杂合子模型和显性模型提示ACE I/D多态性显著增加有先兆偏头痛的易感性.结论 ACE基因I/D位点多态性与偏头痛易感性相关,其D等位基因是偏头痛的危险因素,特别是显著增加有先兆偏头痛的易感性.

Meta analysis on ACE I/D gene polymorphism and migraine

Objective To investigate the association between the angiotensin-converting enzyme (ACE) I/D locus polymor-phism and migraine susceptibility .Methods The case control studies on the relation between ACE I/D gene polymorphism and mi-graine susceptibility published in the databases of PubMed and EMBAE were retrieved .The relationship between ACE 1/D poly-morphism and migraine was evaluated through the effect size (OR) and 95% confidence interval(CI) by fixed-effects model or ran-dom-effect models .Meanwhile the subgroup analysis of ethnicity and migraine types was performed .Results In meta analysis ,the homozygote model(DD vs .Ⅱ:OR= 1 .21 ,95% CI:1 .02-1 .44 ,P=0 .03 ;I2 =47% ) and dominant model all indicated that the ACE I/D polymorphism was positively correlated with the susceptibility of all migraine .The heterozygote model (DI vs .Ⅱ:OR=1 .35 , 95% CI:1 .06-1 .72 ,P=0 .02 ;I2 =10% ) and dominant model (DD+DI vs .Ⅱ:OR=1 .37 ,95% CI:1 .09 -1 .73 ,P=0 .00 ;I2 =40% ) indicated that ACE I/D polymorphism significantly increased the susceptibility of migraine with aura .Conclusion The ACE I/D locus polymorphism is correlated with migraine susceptibility ,its D allele is a risk factor of migraine ,which especially increases the susceptibility of migraine with aura .