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脂联素基因T45G多态性和2型糖尿病相关性的Meta分析

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脂联素基因T45G多态性和2型糖尿病相关性的Meta分析

作者:张建丽李兴

来源:《中国当代医药》2016年第18期

[摘要]目的综合评价脂联素基因2号外显子第45位点基因与2型糖尿病(T2DM)的相关性。方法电子检索2010~2015年中英文文献库关于脂联素基因T45G与T2DM的相关文献,以显性遗传模式、隐性遗传模式、加性遗传模式的三个指标进行综合汇总评价。结果共计纳

入6篇文献,中文2篇,英文4篇,其中观察组(T2DM)共计1119例,对照组(非T2DM)共计1043例。在显性遗传模式中,TT基因型与GG+TG基因型患T2DM危险系数等同[1.13(0.94,1.36)],差异无统计学意义(P>0.05);在隐性遗传模式中,GG基因型明显高于

TT+TG基因型患T2DM危险系数[0.67(0.45,0.98)],差异有统计学意义(P

[关键词]脂联素;2型糖尿病;基因;多态性;危险系数

[中图分类号] R587.1 [文献标识码] A [文章编号] 1674-4721(2016)06(c)-0008-04

[Abstract]Objective To evaluate the relationship of adiponectin gene exon 2 T45G polymorphism with type 2 diabetes mellitus (T2DM).Methods Chinese-English document database was searched from 2010 to 2015,and the references of articles were also retrieved on adiponectin gene T45G associated with T2DM.The three indexes of dominant genetic model,recessive genetic model and additive genetic model were used for comprehensive evaluation summary.Results 6 Documents were included,Chinese 2 and English 4,wherein the observation group (T2DM) sumed to 1119 cases,in the control group (non-T2DM) sumed to 1043 cases.The dominant mode,the risk factor of T2DM between TT genotype and GG+TG genotype was equivalent [1.13 (0.94,

1.36)],with no statistical differenc (P>0.05).The recessive mode,the risk factor of T2DM in GG genotype was significantly higher than that of genotype TT+TG [0.67 (0.45,0.98)],the difference was statistically significant (P

[Key words]Adiponectin;Type 2 diabetes mellitus;Gene;Polymorphism;Risk factor

脂联素(adiponectin,APN)是一种可提升胰岛素敏感性及抗炎作用的物质[1],研究[2]发现它参与了抵抗胰岛素发生和发展的全过程。脂联素的基因位于3q27,据相关文献[3]报道,此基因中的2号外显子第45个位点上存有T到G的变异范畴,其中,人体中存有TT、TG、GG三种基因,有研究[4]表明,它的基因突变可能与2型糖尿病(type 2 diabetes mellitus,

T2DM)有关。虽然关于T45G的研究较多,但也存在不足,如样本量较少,多为单中心研究等,结论有待进一步考究。因此我们通过Meta分析模式,将样本量叠加、增大样本含量和研究机构的方法进一步验证该结论的真实性,具体如下。

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