目的探讨补充抗氧化维生素与阿尔茨海默病的关系。方法全面检索到2009年12月为止的PubMed及其他科学网站的所有相关文献,应用Meta分析的方法对各研究进行数据合并和分析。结果纳入的文章共有6篇:队列研究3篇,随访人数累计7625例,病例622例;病例对照研究3篇,对照人数累计15 747例,病例973例。队列研究中,补充维生素C(Vc)、维生素E(Ve)和联合补充Vc+Ve的合并统计参数RR值分别为0.79(95%CI:0.55~1.12)、0.94(95%CI:0.73~1.22)和1.00(95%CI:0.77~1.29)。病例对照研究中,补充Vc、Ve以及Vc+Ve的合并统计参数OR值分别为1.50(95%CI:0.70~3.21)、1.06(95%CI:0.41~2.75)和1.81(95%CI:0.91~2.75)。结论补充抗氧化维生素不能降低阿尔茨海默病的发病。
Objective To evaluate the relationship between antioxidant vitamin supplement and the risk of Alzheimer disease.Methods A systematic literature search up to July 2009 was performed in PubMed and all web of science on the subject.The related date were put into Mta-analysis.ResultsThree cohort studies with 7625 participants and 622 cases,and 3 case-control studies with 973 cases and 15747 controls were included.In cohort studies,the pooled RR values of vitamin C(Vc),vitamin E(Ve) and combined Vc+Ve supplement were 0.79(95%CI:0.55-1.12),0.94(95%CI:0.73-1.22),1.00(95%CI:0.77-1.29),respectively.In case-control studies,the pooled OR values of Vc,Ve and Vc+Ve supplement were 1.50(95%CI:0.70,3.21),1.06(95%CI:0.41,2.75) and 1.81(95%CI:0.91,2.75),respectively.Conclusion Antioxidant vitamin supplement is not associated with the reduced risk for Alzheimer disease.