JACC:甘油三酯相关的遗传倾向与二尖瓣疾病的关联

2017-06-20 MedSci MedSci原创

二尖瓣环状钙(MAC),通常由心脏成像发现,与心血管事件有关,易受临床重要的二尖瓣瓣回流和二尖瓣狭窄的发展的影响。然而,它的生物学决定因素在很大程度上仍然是未知的。

背景:二尖瓣环状钙(MAC),通常由心脏成像发现,与心血管事件有关,易受临床重要的二尖瓣瓣回流和二尖瓣狭窄的发展的影响。然而,它的生物学决定因素在很大程度上仍然是未知的。

目的:评估血浆脂质相关的遗传倾向是否与MAC的存在有关。

方法: 使用3个单独的Mendelian随机化技术对3大二尖瓣环状钙(MAC)患者群体中的脂质遗传风险评分(GRS)进行评价:弗雷明汉健康研究,梅萨(欧洲多民族的动脉粥样硬化研究),以及年龄(年龄,基因/环境敏感-雷克雅维克研究)。此研究在梅萨拉丁裔美国人的参与者中提供了跨种族的重复。

结果:MAC的参与者为1149人(20.4%)。在所有3个组的综合分析中,甘油三酯的标准与MAC的存在显着相关(比值比(OR)每个甘油三酯的标准单位:1.73;95%置信区间:1.24到2.41;p=0.0013)。低或高密度脂蛋白胆固醇与MAC的相关性都不高;在梅萨拉丁裔美国人群体跨种族分析中,结果是一致的(比值比(OR)每个甘油三酯的单位:2.04,95%CI:1.03到4.03,p=0.04)。在所有研究组的联合荟萃分析中,甘油三酯GRS与MAC(比值比(OR)每甘油三酯GRS:1.79;95%CI:1.32到2.41;p=0.0001)有关。这一结果对几种敏感性分析都很有影响,这些分析限制了已知的和未知的遗传型多效性的形式。

结论:高甘油三酯水平的遗传倾向与MAC的存在有关,这是临床显着的二尖瓣疾病的一个危险因素,表明存在因果关系。降低甘油三酯水平是否能降低临床上显着的二尖瓣疾病的发病率需要进一步研究。

原始出处
Mehdi Afshar,Kevin Luk,Ron Do,et al. Association of Triglyceride-Related Genetic Variants With Mitral Annular Calcification. JACC. 2017 June.

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    2018-02-26 hbwxf
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    2017-06-21 wwzzly
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    2017-06-21 ylzr123

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