多种人体测量和前节律12导电图指数:一个门德尔的随机化研究
Maddalena Ardissino1,2, Kiran Haresh Kumar Patel1, Bilal Rayes1
1National Heart and Lung Institute, Imperial College London, London, United Kingdom.
PLoS medicine
|August 8, 2023
概括
这项研究使用遗传数据表明,较高的体重指数 (BMI) 和脂肪质量因果上会增加P波持续时间和更正的QT间隔 (QTc). 这些发现将肥胖与心律风险联系在一起.
科学领域:
- 心血管遗传学 心血管遗传学
- 肥胖问题研究研究
- 电心电图是指心电图.
背景情况:
- 观察性研究表明,肥胖和心电图指数之间存在联系,但因果推理受到混的限制.
- 门德尔随机化 (MR) 是研究人类测量和心电图参数之间的因果关系的强大工具.
- 了解这些关系对于评估与肥胖相关的心律失常风险至关重要.
研究的目的:
- 探索多个关于心电图 (ECG) 关键指标的人类测量指标的因果关系.
- 研究身体质量指数 (BMI),腰部:部比 (aWHR),身高,体重,脂肪质量和无脂肪质量对P波持续时间 (PWD),PR间隔,QRS持续时间和纠正的QT间隔 (QTc) 的影响.
- 建立与肥胖相关的特征和心脏电活动之间的因果关系.
主要方法:
- 利用孟德尔的随机化 (MR) 与来自欧洲大型祖先队伍 (BMI最高为806,834人) 的全基因组关联研究 (GWAS) 数据.
- 与人体测量和心电图结果相关的提取遗传变异 (SNP).
- 采用逆变量加权的MR作为主要分析,加权的中位数MR和MR-Egger作为灵敏度分析.
主要成果:
- 更高的基因预测的BMI,脂肪质量,无脂肪质量,身高和体重与更长的P波持续时间 (PWD) 有关.
- 基因预测的BMI与更长的校正QT间隔 (QTc) 相关,由脂肪质量和无脂肪质量驱动.
- 身高,体重和aWHR也与更长的QTc间隔有关.
结论:
- 这项MR研究提供了BMI在影响与心房和心室心律失常风险相关的多个心电图指数中的因果作用的证据.
- 这些发现强调了脂肪质量和无脂肪质量对这些关联的重大贡献.
- 基因预测的身高也在观察到与心电图参数的关联中起作用.
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