摘要
背景:MicroRNA(miRNA)是各种癌症的发生和发展的关键调节器。胃癌(GC)是世界上最常见和致命的癌症之一。这项研究的目的是探讨microRNA-143宿主基因(miR-143HG)多态性是否与GC风险相关。 方法:在中国汉族人群的506例患者和500例健康对照中对5个单核苷酸多态性(SNP)进行基因分型。通过计算比值比(OR),95%置信区间(CI),使用多种遗传模型,分层分析和单倍型分析来评估miR-143HG多态性与GC风险之间的关联。 结果:我们的结果表明,在共显性模型下(OR = 0.67,95%CI = 0.52-0.88,p = 0.003)和在显性模型下,rs11168100与GC风险降低相关(OR = 0.72,95%CI = 0.56-0.92,p = 0.009)。在隐性模型下,Rs353300与GC风险增加有关(OR = 1.41,95%CI = 1.06-1.87,p = 0.017)。此外,rs11168100和rs353300与GC的易感性(年龄> 60岁)相关,三个SNP(rs12654195,rs353303和rs353300)与GC的风险(≤60岁)相关。此外,发现两个SNP(rs12654195和rs11168100)与女性亚组的GC敏感性降低有关。 Rs353300代表女性GC发生和发展的两个方面。最后,在多层淋巴结转移分析中,rs3533003与降低GC的风险有关。 结论:我们的结果首次为中国汉族人群中miR-143HG多态性与GC风险相关提供了一些证据。
关键词: 病例对照研究,中国汉族人群,单核苷酸多态性,胃癌,miR-143宿主基因。
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