脂蛋白 (a) 摩尔度而不是遗传变异更好地预测汉族人口的冠状动脉疾病风险和严重程度
Jie Li1,2, Ben Ma1,2, Qin Fang1,2
1Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
Lipids in health and disease
|February 14, 2025
概括
在LPA基因中的遗传变异会影响中国人的脂蛋白[Lp[a]水平. 然而,这些变异不能可靠地预测冠状动脉疾病 (CAD) 的风险或严重程度.
科学领域:
- 心血管遗传学 心血管遗传学
- 分子流行病学分子流行病学
- 生物化学 生化学
背景情况:
- 升高的脂蛋白 (Lp) 是冠状动脉疾病 (CAD) 的已知危险因素.
- Lp(a) 水平显示出显著的遗传决定性和种群变异性.
- 以前对Lp (a) 基因变异的研究主要集中在高加索人群中.
研究的目的:
- 为了调查LPA遗传变异,Lp(a) 度和汉族中华队列中CAD之间的关联.
- 评估LPA遗传变异对CAD发病率和严重性的预测价值.
主要方法:
- 招募3779名接受冠状动脉血管造影的患者.
- 使用qPCR对LPA Kringle IV类型2 (KIV-2) 副本的量化.
- 在LPA基因中对15个单核酸多态 (SNP) 的基因定型.
- 基于七个SNP的LPA遗传风险评分 (GRS) 的计算.
- 使用线性和逻辑回归模型进行统计分析.
主要成果:
- 较高的Lp (a) 四分位数显著与增加CAD,多血管CAD和高Gensini分数的几率有关.
- 两种LPA GRS和KIV-2四分位数都显示出与Lp (a) 度的显著关联.
- 在FDR校正后,LPA遗传变异与CAD,多血管CAD或高Gensini得分之间没有发现显著的关联.
结论:
- 在汉族中国人群中,LPA遗传变异明显影响Lp (a) 水平.
- 对于预测CAD而言,Lp (a) 度,而不是特定的遗传变异,似乎更为关键.
- 强调Lp (a) 检测和管理对心血管风险评估的临床重要性.
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