临床荟萃 ›› 2016, Vol. 31 ›› Issue (3): 315-321.doi: 10.3969/j.issn.1004-583X.2016.03.020

• 荟萃分析 • 上一篇    下一篇

中国人群轻度认知功能障碍与载脂蛋白E基因多态性相关性的Meta分析

张洁,周晓辉,罗坤   

  1. 新疆医科大学第一附属医院 干部内一科, 新疆 乌鲁木齐 830054
  • 收稿日期:2015-12-01 出版日期:2016-03-05 发布日期:2016-04-18
  • 通讯作者: 周晓辉,Email: zhouxiaohui858@sina.com
  • 基金资助:
    新疆维吾尔自治区自然科学基金资助项目(2013211A095)

Association between mild cognitive impairment and apolipoprotein E genetic polymorphism in Chinese population: a meta-analysis

Zhang Jie, Zhou Xiaohui, Luo Kun   

  1. Department of Internal Medicine, the First Affiliated Hospital of Xinjiang University, Urumqi 830054, China
  • Received:2015-12-01 Online:2016-03-05 Published:2016-04-18
  • Contact: Zhou Xiaohui, Email: zhouxiaohui858@sina.com

摘要: 目的 系统评价中国人群轻度认知功能障碍(MCI)与载脂蛋白E(ApoE)基因多态性的相关性。方法 计算机检索PubMed、万方数据库、维普、中国知网及中国生物医学文献数据库,检索时间2005年1月至2015年3月,收集有关ApoE基因多态性与中国人群MCI相关的文献。采用RevMan 5.0软件进行数据合并及一致性检验并评估发表偏倚。结果 共11篇文献纳入研究,纳入人群5 200人,MCI组1 416例,对照组3 784例。ApoE ε4等位基因及ε4/4、ε3/4、ε2/4基因型携带者MCI易感性升高,差异有统计学意义;各基因型MCI的发病风险与基因型ε3/3人群比较中:基因型为ε4/4人群增高2.86倍(OR=2.86,95%CI=1.67~4.90,P<0.01);基因型为ε3/4人群增高2.01倍(OR=2.01,95%CI=1.70~2.38,P<0.01);基因型为ε2/4人群增高1.71倍(OR=1.75,95%CI=1.21~2.53,P<0.01)。各等位基因MCI的发病风险与等位基因ε3人群相比较:等位基因为ε4人群增高2.06倍(OR=2.06,95%CI=1.69~2.51,P<0.01)。ApoEε2/3基因型携带者MCI易感性降低(ε2/3 vs ε3/3:OR=0.80,95%CI=0.66~0.97,P=0.02)。MCI的发病风险在基因型ε2/2及等位基因ε2人群的未见统计学差异。结论 中国人群ApoE等位基因ε4与MCI发病存在关系;等位基因ε3可能为MCI的保护基因,等位基因ε2与MCI发病未发现相关性。

关键词: 轻度认知障碍, 载脂蛋白E类, 基因多态性, meta分析

Abstract: Objective To review systematically the correlation between genetic polymorphism of apolipoprotein E (ApoE) and mild cognitive impairment (MCI) in Chinese population.Methods A comprehensive search was conducted up between Jan 2005 and Mar 2015 in the following databases: PubMed, WanFang Database, VIP database, CNKI and Chinese biomedical literature database. The literature of correlation between genetic polymorphism of ApoE and mild cognitive impairment in Chinese population were collected. RevMan 5.0 was adopted for investigating heterogeneity among individual studies and for summarizing all the studies.Results There were totally 11 case-controlled studies including 1 416 patients with MCI and 1 183 control people. The meta-analysis showed that individuals with ApoE ε4 alleles and ε4/4, ε3/4, ε2/4 genotypes were significantly associated with the risk of MCI. Compared with genotype ε3/3, the MCI risk increased by 2.86 times in population with genotype ε4/4 (OR=2.86,95%CI=1.67-4.90,P<0.001); the MCI increased by 2.01 times in population with genotype ε3/4(OR=2.01,95%CI=1.70-2.38,P<0.001); the MCI risk increased by 1.71 times in t population with genotype ε2/4(OR=1.75,95%CI=1.21-2.53,P<0.001); Compared with genotype ε3, the MCI risk increased by 2.06 times (OR=2.06, 95%CI=1.69-2.51,P<0.001). The susceptibility to MCI in ApoE ε2/3 genotype was significantly decreased(ε2/3 vs ε3/3: OR=0.80, 95%CI=0.66-0.97,P=0.02). There were no significant difference between ApoE ε2/2 genotype, ε2 alleles and the onset risk of MCI.Conclusion ApoE ε4 alleles is related to the onset of MCI in Chinese population, ApoE ε3 alleles may be the protective gene of MCI and ApoE ε2 alleles shows no correlation with the onset of MCI.

Key words: mild cognitive impairment, apolipoproteins E, gene polymorphism, meta analysis

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