SORL1基因多态与阿尔茨海默病发病风险的Meta分析

目的 运用Meta分析的方法探讨SORL1基因rs2070045位点基因多态与阿尔茨海默病(AD)发病风险的关系.方法 应用SORL1、sortilin-related recepmr、Alzheimer等关键词,检索Medline、Cochrane网书馆和中国生物医学文献数据库(CBM)发表的文章并附以文献追溯方法.应用RevMan4.2软件进行统计分析.结果 三篇文献共11组不同种族人群纳入分析,共有AD组2927例.对照组3869例.AD组和对照组rs2070045位点基因多态现象巾GG+GT基因型频率与最常见的纯合子TT基因型频率比的合并比值比(OR)值为1.19,95%可信区间为1.08～1.31,Z=3.39,P=0.0007,等位基因频率合并OR值为1.17,95%可信区间为1.07～1.27,Z=3.67,P=0.0002.结论 SORL1基因rs2070045位点多态性与AD患病风险相关.

Meta-analysis of the relation between the SORLI gene polymorphism and the onset risk of AIzheimer's disease

Objective To investigate the relation between the rs2070045 locus polymorphism in the SORL1 gene and the onset risk of AD by means of Metβ-analysis. Methods Databases (Medline, Cochrane Library and CBM) were searched using keywords like SORL1, sortilin-related receptor, Alzheimer and so on, and a manual search of citations was also performed from relevant original studies and literatures. All analyses were conducted with Review Manager Version4.2 software. Results 3 literatures with 11 different ethnic groups were studied, totally including the AD group (2927 cases) and the control (3867 cases). The summary OR for studies with frequency of GG+GT genotype at rs2070045 locus in the SORLI gene was 1.19 (95%CI: 1.08-1.31, Z=3.39, P=0.0007), when it compared with the common homozygote ofTT genotype. The summary OR for allele frequency was 1.17 (95%CI: 1.07-1.27, Z=3.67, P=0.0002). Conclusion The metβ-analysis suggests that the polymorphism at rs2070045 locus of SORL1 gene might be a genetic risky factor for AD.