胆固醇和冠状动脉疾病风险的遗传学在六个全球祖先之间
Sarah M Urbut1,2,3, Qiuli Chen4,5,6, Yang Sui1,2
1Division of Cardiovascular Disease, Massachusetts General Hospital, Boston.
NEJM evidence
|October 28, 2025
概括
不同的遗传研究证实低密度脂蛋白胆固醇 (LDL-C) 与祖先之间心血管疾病风险的联系. 研究结果将试验结果推广到代表性不足的人群中,为未来的心血管疾病预防策略提供信息.
科学领域:
- 遗传学 是一个遗传学.
- 心血管疾病研究研究
- 人口健康 人口健康
背景情况:
- 降低LDL-C药物的临床试验显示了对心血管的益处,但缺乏多样化的代表性.
- 试验中的代表性不足限制了研究结果对不同人群的概括性.
- 人类遗传研究为评估不同祖先的药物疗效提供了潜在的途径.
研究的目的:
- 为了调查各种人类遗传研究是否可以验证LDL-C降低药物试验结果在代表性不足的人群中.
- 为了确定与LDL-C相关的心血管疾病风险降低在各种祖先群体的普遍性.
主要方法:
- 包括来自六个不同的队伍的967,325个人.
- 利用遗传主要成分和k-最近邻居来确定祖先.
- 构建了祖先特异性的LDL-C多基因风险得分 (PGS),并通过贝叶斯元分析将其与LDL-C和冠状动脉疾病 (CAD) 风险联系起来.
主要成果:
- 遗传预测的LDL-C关联在祖先之间是一致的,验证了遗传代理.
- 模仿PGS的LDL-C增加40 mg/dl,在不同人群中显示出与CAD风险的异质关联.
- 对CAD的后期赔率比率从非洲人群中1.35到中东人群中1.82不等.
结论:
- 在各种祖先群体中,LDL-C和CAD风险之间显示出一致的关联.
- 突出了祖先之间效应大小的差异,强调了包容性研究的必要性.
- 这些发现支持基因研究在评估代表性不足的人群治疗概括性的有用性.
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