基因预测的血氨酸与冠状动脉疾病及其危险因素的关联:孟德尔的随机化研究
1School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
The American journal of clinical nutrition
|August 28, 2023
概括
血中氨酸水平与增加糖尿病风险和较差的脂质样本有关,但与冠状动脉疾病无关. 这些发现表明,氨酸会影响新陈代谢健康,因此需要进一步研究潜在的机制.
科学领域:
- 代谢健康和心血管疾病研究研究.
- 遗传流行病学遗传流行病学
- 营养生物化学 营养生物化学
背景情况:
- 氨酸是一种氨基酸补充剂,参与葡萄糖-氨酸循环.
- 观察性研究将血类氨酸与冠状动脉疾病 (CAD) 风险增加和不良脂质配置文件联系起来.
- 目前缺乏大规模随机对照试验的证据.
研究的目的:
- 调查血中氨酸水平与冠状动脉疾病 (CAD) 之间的未经证实的关联.
- 通过使用孟德尔随机化来评估血氨酸和关键CAD风险因素之间的关系.
主要方法:
- 利用了Mendelian随机化 (MR) 用单核酸多态度与氨酸强烈相关.
- 应用了对CAD,糖尿病,葡萄糖,脂质,血压 (BP) 和体重指数的大型全基因组关联研究.
- 进行了敏感性分析,包括加权中位数,MR-Egger和MR-Robust调整的个人资料得分,以及性别特定的分析.
主要成果:
- 基因预测的血亚拉宁与CAD没有关联.
- 血氨酸的升高与糖尿病风险增加有关 (OR:1.35),高葡萄糖,LDL胆固醇,甘油三,总胆固醇,阿波利波蛋白B和血压.
- 与LDL胆固醇和甘油三酸的关联在女性中更为明显.
结论:
- 氨酸可能对糖尿病,葡萄糖代谢,脂质样本和血压产生因果作用,但不影响冠状动脉疾病.
- 需要进一步的研究来阐明这些关联背后的具体机制.
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