对心脏代谢特征的多基因风险评分证明了祖先对预测精准医学的重要性
Rachel L Kember1, Shefali S Verma2, Anurag Verma3
1Department of Psychiatry, University of Pennsylvania, 3535 Market Street Philadelphia, PA 19104, USA, rkember@pennmedicine.upenn.edu.
Pacific Symposium on Biocomputing. Pacific Symposium on Biocomputing
|December 13, 2024
概括
这项研究表明,多基因风险评分 (PRS) 在使用多祖先数据时表现更好,特别是在多样化的人口中. 开发一种通用的PRS方法对于公平的精准医学至关重要.
科学领域:
- 遗传学 是一个遗传学.
- 基因组流行病学 基因组流行病学
- 精准医学是一门精准的医学.
背景情况:
- 多基因风险评分 (PRS) 通常来自欧洲祖先 (EUR) 种群的全基因组关联研究 (GWAS).
- 这种祖先偏见限制了PRS在不同人群中的公平应用.
- 评估不同祖先的PRS性能对于推进个性化医学的发展至关重要.
研究的目的:
- 评估来自非洲 (AFR) 和欧洲 (EUR) 祖先群体的多祖先全基因组关联研究 (GWAS) 的PRS性能.
- 评估多祖先与祖先特定的LD面板对于PRS的实用性.
- 进行一个全现象关联研究 (PheWAS),以探索PRS与各种表型的关联.
主要方法:
- 对于五种心脏代谢表型,使用多祖先和祖先特定的LD面板来导出PRS.
- 在宾夕法尼亚医学生物银行 (PMBB) 队列中评估了PRS的表现,按AFR和EUR祖先分层.
- 进行了全现象关联研究 (PheWAS),以确定PRS-现型关联.
主要成果:
- 与祖先特定的面板相比,多祖先LD面板通常改善了非洲祖先个体的PRS效应大小.
- 来自多祖先面板的PRS在欧洲祖先个体中显示SBP和T2D的性能有所改善.
- 观察到与各种表型有显著的PRS关联,尽管与欧洲祖先的个人相比,在非洲祖先的个人中通常较少和较弱.
结论:
- 使用多祖先LD面板为跨不同遗传背景的PRS衍生提供了好处.
- 该研究强调了在不同人群中对GWAS的需求,以及世界性的PRS方法的发展.
- 在不同群体中推进PRS开发对于公平有效的精准医学至关重要.
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