A large-scale meta-analysis of the association between the ANKK1/DRD2 Taq1A polymorphism and alcohol dependence.

A large-scale meta-analysis of the association between the ANKK1/DRD2 Taq1A polymorphism and alcohol dependence.
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DOI:
10.1007/s00439-012-1251-6
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发表时间:
2013-03
期刊:
影响因子:
5.3
通讯作者:
Zhang, Huiping
Zhang, Huiping
中科院分区:
生物学2区
文献类型:
--
作者:
Wang, Fan;Simen, Arthur;Arias, Albert;Lu, Qun-Wei;Zhang, Huiping

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酒精依赖(Alcohol Dependence,AD)是一种常见的神经精神疾病,具有高度遗传性。许多研究分析了Taq 1A多态性(位于基因簇ANKK 1/DRD 2)与AD之间的关联。在本研究中,我们进行了一项大规模的荟萃分析,以证实Taq 1A多态性与AD风险之间的关联,这些研究包括在截至2012年8月发表的61项病例对照研究中的18,000多名受试者。我们的荟萃分析表明Taq 1A多态性与AD易感性之间存在等位基因和基因型关联[等位基因:P(Z)=1.1×10−5,OR=1.19;基因型:P(Z)=3.2×10−5,OR=1.24]。在使用修剪和填充方法调整发表偏倚后,这种关联仍然显着。敏感性分析显示Taq 1A多态性对AD风险的影响大小是中等的,不受任何个体研究的影响。已发表研究的合并优势比随发表年份而下降,但在2001年后稳定下来。亚组分析表明,发表偏倚可能受到种族血统的影响。总之,这项大规模荟萃分析证实了Taq 1A多态性与AD之间的关联。ANKK 1/DRD 2 Taq 1A多态性在AD中的功能意义有待进一步研究。
Alcohol dependence (AD) is a common neuropsychiatric disorder with high heritability. A number of studies have analyzed the association between the Taq1A polymorphism (located in the gene cluster ANKK1/DRD2) and AD. In the present study, we conducted a large-scale meta-analysis to confirm the association between the Taq1A polymorphism and the risk for AD in over 18,000 subjects included in 61 case-control studies that were published up to August 2012. Our meta-analysis demonstrated both allelic and genotypic association between the Taq1A polymorphism and AD susceptibility [allelic: P(Z)=1.1×10−5, OR=1.19; genotypic: P(Z)=3.2×10−5, OR=1.24]. The association remained significant after adjustment for publication bias using the trim and fill method. Sensitivity analysis showed that the effect size of the Taq1A polymorphism on AD risk was moderate and not influenced by any individual study. The pooled odds ratio from published studies decreased with the year of publication but stabilized after the year 2001. Subgroup analysis indicated that publication bias could be influenced by racial ancestry. In summary, this large-scale meta-analysis confirmed the association between the Taq1A polymorphism and AD. Future studies are required to investigate the functional significance of the ANKK1/DRD2 Taq1A polymorphism in AD.
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