表观遗传衰老和心房阻塞之间的关联:一个双样本的门德尔随机化研究.
Wanqian Pan1, Chi Zhang1, Xiaojiao Du1
1Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P. R. China.
Epigenomics
|January 20, 2025
概括
通过GrimAge加速来衡量表观遗传衰老,与心房阻塞 (AVB) 的风险增加有关. 这一发现凸显了表观遗传衰老在AVB预防策略中的重要性.
科学领域:
- 心血管表观遗传学 心血管表观遗传学
- 遗传流行病学遗传流行病学
- 衰老研究研究 衰老研究
背景情况:
- 心房静脉阻塞 (AVB) 是一种常见的心律障碍.
- 表观遗传衰老,反映生物年龄,越来越多地被认为是疾病风险的一个因素.
- 了解表观遗传衰老和AVB之间的因果关系对于预防至关重要.
研究的目的:
- 调查表观遗传衰老对心脏静脉阻塞 (AVB) 患病率的因果关系.
- 使用孟德尔随机化 (MR) 分析来评估对表观遗传衰老和AVB的遗传倾向.
- 探索表观遗传衰老和AVB之间的因果关系的方向性.
主要方法:
- 孟德尔随机化 (MR) 分析是使用基因仪器用于表观遗传衰老 (GrimAge加速) 和AVB.
- 数据来源于爱丁堡数据共享和FinnGen生物库中的全基因组关联研究.
- 进行了单变量,多变量和灵敏度分析,以确保可靠的发现.
主要成果:
- 基因预测的GrimAge加速与AVB风险增加显著相关 (IVW:p=0.010,95%CI=1.024-1.196;加权中位数:p=0.031,95%CI=1.009-1.215).
- 没有证据支持AVB对表观遗传衰老的因果关系.
- 多变量MR分析,调整风险因素,证实了表观遗传衰老和AVB之间的联系.
结论:
- 表观遗传衰老,特别是GrimAge加速,可能会因果性地增加发展心房静脉阻塞 (AVB) 的风险.
- 这些发现强调了针对表观遗传衰老在预防AVB方面的潜在作用.
- 进一步研究将表观遗传衰老与AVB联系在一起的机制是有必要的.
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