代谢物和冠心病:一个两个样本的门德尔随机化
Yang Sheng1, Feng Gao2, Zhenyu Zhu1
1Department of Cardiology, Tongde Hospital of Zhejiang Province, 234 Gucui Road, Hangzhou, Zhejiang, China.
概括
这项研究调查了循环代谢物和冠心病 (CHD) 之间的因果关系. 某些胆固醇和甘油三水平会增加心脏病风险,而中等高密度胆固醇中的脂可能会提供保护.
科学领域:
- 心血管疾病流行病学
- 代谢学 代谢学 代谢学
- 遗传流行病学遗传流行病学
背景情况:
- 观察性研究表明,循环中的代谢物与冠心病 (CHD) 之间存在联系.
- 这些代谢物和心脏病之间的因果关系尚不清楚.
- 这项研究旨在澄清双向因果关系和保护因素.
研究的目的:
- 为了确定循环中的代谢物和CHD之间的双向因果关系.
- 为了确定与降低心脏病风险相关的特定循环代谢物.
主要方法:
- 采用了两个样本的门德尔随机化 (MR) 研究设计.
- 使用全基因组关联研究 (GWAS) 的代谢物 (n=24,925) 和心血管疾病 (n=86,995) 的数据.
- 使用逆方差加权元分析,中位数加权,MR Egger和MR-PRESSO进行分析.
主要成果:
- 在大LDL中的自由胆固醇,中等LDL和LDL中的总胆固醇,中等LDL中的脂,以及小VLDL和小HDL中的各种代谢物,包括甘油三,自由胆固醇和脂,与心脏病风险存在积极关联.
- 氨酸还显示出与心脏病风险的积极关联.
- 中等HDL中的脂与心脏病有负面关联,这表明它具有保护作用.
结论:
- 门德尔的随机化分析表明,脂在中等高血压中对心脏病有保护作用.
- 相反,几个代谢物,包括LDL和VLDL中的自由胆固醇和总胆固醇,LDL中的脂,VLDL和HDL中的甘油三,以及氨酸与心脏病风险增加有关.
- 需要进一步的研究来将这些发现转化为临床实践.
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