在Lp的祖先变异:流行病学,同型多样性和测试
Priyansh Shah1, Sara King2, Sophia Trabanino3
1Department of Medicine, Albert Einstein College of Medicine, Jacobi Hospital, Bronx, NY, USA.
Current atherosclerosis reports
|November 17, 2025
概括
由于遗传因素,脂蛋白水平和相关的心血管风险在不同祖先群体之间存在显著差异. 了解这些差异对于公平的Lp (a) 测试和治疗策略至关重要.
科学领域:
- 心血管遗传学 心血管遗传学
- 流行病学 流行病学
- 生物化学 生物化学
背景情况:
- 脂蛋白 (Lp) 是一种由基因决定的粒子,与动脉样硬化心血管疾病 (ASCVD) 和动脉狭窄症 (CAVS) 有因果关系.
- 血Lp(a) 度表现出100倍以上的变化,主要受到LPA基因多态性和Kringle-IV类型2 (KIV2) 重复数的影响,这决定了apolipoprotein(a) [apo(a) ]异形大小.
研究的目的:
- 根据其在不同祖先群体中的结构和遗传变异,探索脂蛋白 (Lp) 的流行病学.
- 突出基因构成对Lp (a) 水平和不同人群中相关心血管风险的影响.
主要方法:
- 对检查Lp (a) 水平和遗传决定因素的流行病学研究的审查.
- 对Lp(a) 度,apo(a) 异型大小和LPA基因多态性在各种种族和民族群体中的数据的分析.
- 评估不同祖先的Lp(a) 水平,异型体型大小和心血管疾病风险之间的关联.
主要成果:
- 与祖先相关的显著差异存在于Lp (a) 度中,非洲血统的个人拥有最高水平,其次是南亚人,西班牙裔/拉丁裔和东亚人.
- 较小的apo(a) 异型与较高的Lp(a) 水平和增加的ASCVD风险有关,尽管异型大小主要是作为Lp(a) 负担的替代品.
- 尽管绝对Lp(a) 水平存在差异,但ASCVD的相对风险每增加单位在不同组中保持一致,这凸显了升高Lp(a) 的通用异构性.
结论:
- 遗传因素,包括LPA基因变异和KIV2重复,显著影响Lp (a) 水平和祖先种群的分布.
- 公平的预防和治疗策略需要将祖先知情的观点与Lp的普遍风险评估原则相结合.
- 建议进行常规的,一次性的Lp(a) 测试,以实现具有成本效益的早期风险分层,特别是当Lp(a) 向治疗变得可用时.
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