评估肥胖和外围动脉疾病之间的因果关系:双向的门德尔随机化研究
Xi-Wei Huang1, Shu-Wen Pang2, Tao Zhang3,4
1Department of Emergency Medicine, Puning People's Hospital, Jieyang, Guangdong Province, China.
Frontiers in cardiovascular medicine
|May 22, 2024
概括
这项研究使用了门德尔的随机化来研究肥胖和外围动脉疾病 (PAD) 之间的联系. 这些发现表明存在潜在的因果关系,强调了体重管理对预防PAD的重要性.
科学领域:
- 心血管遗传学 心血管遗传学
- 代谢疾病研究研究
- 流行病学 流行病学
背景情况:
- 观察性研究表明,肥胖和外周动脉疾病 (PAD) 之间存在联系,但研究结果是相互矛盾的.
- 肥胖和PAD之间的因果关系在医学界仍在争论中.
研究的目的:
- 通过双向门德尔随机化 (MR) 分析,研究肥胖和外周动脉疾病 (PAD) 风险之间的潜在因果关系.
- 探索从PAD到肥胖的潜在反向因果关系.
主要方法:
- 使用双向门德尔随机化 (MR) 分析与公开可用的全基因组关联研究 (GWAS) 数据.
- 采用随机效应逆方差加权 (IVW) 方法来计算效应估计.
- 在全基因组意义上确定了与肥胖相关的八种独立单核酸多态 (SNP).
主要成果:
- 在多个数据集中发现肥胖的遗传责任和PAD风险之间存在显著的积极关联 (ORs从1.138到1.194,p<0.032).
- 一个数据集 (ukb-d-I9_PAD) 没有显示出显著的关联 (OR = 1.001,p = 0.071).
- 反向因果分析没有提供PAD导致肥胖的证据.
结论:
- 这项研究提供了基因证据,支持肥胖和PAD之间的潜在因果关系.
- 这些发现不支持"肥胖悖论",并强调体重管理对于预防PAD的持续重要性.
- 需要进一步的研究来澄清体重在PAD预防中的临床相关性,并为干预策略提供信息.
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