序列变异对脂质水平和冠状动脉疾病的复杂影响
Audunn S Snaebjarnarson1, Anna Helgadottir1, Gudny A Arnadottir1
1deCODE genetics/Amgen, Inc., Reykjavik 102, Iceland.
Cell
|September 15, 2023
概括
遗传变异不仅通过附加性影响冠状动脉疾病 (CAD) 风险,还通过复杂的非附加性相互作用影响血液脂质及其变异性. 这些相互作用凸显了基因与环境在疾病风险上的相互作用.
科学领域:
- 遗传学
- 心血管疾病流行病学
- 生物统计学
背景情况:
- 序列变异通常对血脂水平产生添加作用,影响冠状动脉疾病 (CAD) 的风险.
- 变种的非添加效应和相互作用越来越被认可,但对它们对定量特征和疾病的影响不太了解.
研究的目的:
- 研究血脂水平的非添加性遗传影响,包括相互作用和变异修饰.
- 探索这些复杂的遗传效应如何导致冠状动脉疾病 (CAD) 的风险.
主要方法:
- 对血脂水平及其对CAD风险的影响进行分析.
- 检查变体之间的相互作用,环境因素 (如酒精消耗,饮食) 以及它们对脂质水平和疾病的影响.
- 统计模型检测影响特征变异的表观和基因环境相互作用.
主要成果:
- 证明遗传变异具有影响脂质水平,相关性和变异的非添加效应.
- 确定的特定变体相互作用,如FUT2 Trp154Ter与血型和ADH1BHis48Arg与酒精消费,影响CAD风险.
- 观察到TM6SF2变体对脂质的影响因食用油性鱼类而异,这表明基因与环境的相互作用.
结论:
- 遗传变异可以修改特征变异,作为发现表观症和基因环境相互作用的关键指标.
- 了解这些复杂的基因相互作用对于全面评估CAD风险和个性化医疗方法至关重要.
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