2型糖尿病改变了CAD基因组风险变体与亚临床动脉样硬化的关联
Natalie R Hasbani1, Kenneth E Westerman2,3,4, Soo Heon Kwak5
1Department of Epidemiology Human Genetics and Environmental Sciences, Human Genetics Center, The University of Texas Health Science Center at Houston School of Public Health (N.R.H., H.C., C.S., A.C.M., P.S.d.V.).
Circulation. Genomic and precision medicine
|November 28, 2023
概括
2型糖尿病 (T2D) 改变了遗传因素如何影响冠状动脉疾病 (CAD) 风险,特别是冠状动脉化 (CAC). 这项研究确定了特定的基因,其中T2D改变了与CAC的关联,为CAD发展提供了洞察力.
科学领域:
- 遗传学和基因组学 遗传学和基因组学
- 心血管疾病 心血管疾病
- 代谢障碍 代谢障碍 代谢障碍
背景情况:
- 患有2型糖尿病 (T2D) 的人面临冠状动脉疾病 (CAD) 的风险更高.
- 将T2D与增加的CAD联系在一起的精确机制,特别是在亚临床动脉样硬化中,需要进一步阐明.
- 了解T2D如何在动脉样硬化发育中改变CAD遗传位点至关重要.
研究的目的:
- 研究2型糖尿病 (T2D) 对已知冠状动脉疾病 (CAD) 位点和亚临床动脉样硬化之间的关联的影响.
- 在冠状动脉化 (CAC),状动脉内膜介质厚度和状动脉斑块的背景下,识别T2D修饰的特定CAD遗传位点.
- 探索CAD位点内的罕见变异及其与T2D在动脉样硬化发展中的相互作用的作用.
主要方法:
- 在一个大队列中,比较了CAD位点与亚临床动脉样硬化 (CAC,心动脉内膜介质厚度,心动脉斑块) 的常见和罕见变异关联.
- 利用了来自Trans-Omics for Precision Medicine (TOPMed) 计划的全基因组测序数据,包括T2D病例和正常血糖控制.
- 整合了T2D相互作用术语,以评估CAD位点关联是否被T2D修改,使用基因基础的罕见变异集分析和单变异分析.
主要成果:
- 基于基因的罕见变异组分析确定了特定基因 (ATP1B1,ARVCF,LIPG,ABCG8,EIF2B2) 和亚临床动脉样硬化症措施之间的关联.
- 与对照组相比,ATP1B1和ARVCF基因在2型糖尿病 (T2D) 病例中与冠状动脉化 (CAC) 有显著不同的关联.
- 通过候选单变体分析没有检测到任何显著的相互作用效应,这表明罕见的变体组是关键的修饰剂.
结论:
- 2型糖尿病 (T2D) 显著改变了冠状动脉疾病 (CAD) 位点与冠状动脉化 (CAC) 的罕见变体的关联.
- 这项研究强调T2D是影响动脉样硬化发展遗传基础的关键因素.
- 这些发现为T2D,遗传倾向和心血管风险之间的相互作用提供了新的见解.
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