脂蛋白 (a) 与腹腔大动脉动脉瘤的风险增加有关
medRxiv : the preprint server for health sciences
|September 24, 2024
概括
升高的脂蛋白 (Lp) 水平与腹腔大动脉动脉瘤 (AAA) 的更高风险有关. 遗传和观察数据证实,这种关联与阿波利波蛋白B (ApoB) 是独立的,这表明Lp(a) 作为AAA的潜在治疗标.
科学领域:
- 心血管科学 心血管科学
- 遗传学 是一个遗传学.
- 流行病学 流行病学
背景情况:
- 脂蛋白 (Lp) 是一种与动脉样硬化心血管疾病相关的粒子.
- 新出现的证据表明,循环脂蛋白在腹腔大动脉动脉瘤 (AAA) 中起着作用.
- 调查Lp(a) 在AAA中的作用对于了解疾病机制和开发向疗法至关重要.
研究的目的:
- 评估脂蛋白 (Lp) 在腹腔大动脉瘤 (AAA) 风险中的作用.
- 三角化人类观察和遗传证据,以证实Lp(a) 和AAA之间的关联.
- 确定Lp(a) 和AAA之间的关联是否与阿波利波蛋白B (ApoB) 独立.
主要方法:
- 在英国生物库中对Lp(a) 和AAA风险进行了后勤回归分析 (795例AAA病例,374,772例对照).
- 多变量门德尔随机化 (MVMR) 来评估因果Lp(a) -AAA关联,控制ApoB.
- 全基因组关联研究 (GWAS) 数据用于基因仪器创建和AAA关联测试.
主要成果:
- 升高的Lp (a) 水平显示了与增加AAA风险 (或1.04每10nmol/L) 的观察相关性.
- 临床上高的Lp(a) 水平 (>150nmol/L) 与较高的AAA风险 (OR 1.47) 有意义地相关.
- MVMR证实了Lp(a) 和AAA风险 (或每SD增加1.13个) 之间存在显著的,与ApoB无关的关联.
结论:
- 观察和遗传数据都支持Lp (a) 和AAA风险增加之间的联系.
- 这种关联与阿波利波蛋白B (ApoB) 水平是独立的.
- 腹腔大动脉动脉瘤的潜在治疗标是Lp (a) 抗体,因此应被纳入临床试验中的Lp (a) 抗体.
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