eNOS rs2070744 polymorphism might influence predisposition to hemorrhagic cerebral vascular diseases in East Asians: A meta-analysis

Introduction: Endothelial nitric oxide synthase (eNOS) polymorphisms might influence predisposition to hemorrhagic cerebral vascular diseases, but the results of already published studies regarding relationship between eNOS polymorphisms and hemorrhagic cerebral vascular diseases were still controversial.

Methods: The authors performed this meta-analysis to estimate relationship between eNOS polymorphisms and hemorrhagic cerebral vascular diseases in a larger pooled population by combing the results of already published related studies. The authors searched Pubmed, Embase, Web of Science, and CNKI for already published studies.

Results: Eighteen already published studies were pooled analyzed in this meta-analysis. The pooled meta-analyses results showed that eNOS rs2070744 polymorphism was significantly associated with predisposition to hemorrhagic cerebral vascular diseases in East Asians (dominant comparison: OR = 0.77, p = .01; overdominant comparison: OR = 1.24, p = .04; allele comparison: OR = 0.78, p = .006) Nevertheless, the pooled meta-analyses did not reveal any positive results for eNOS rs1799983 and rs869109213 polymorphisms.

Conclusions: This meta-analysis suggested that eNOS rs2070744 polymorphism, but not rs1799983 and rs869109213 polymorphisms, might influence predisposition to hemorrhagic cerebral vascular diseases in East Asians.