从青春期到老年,APOE ε4载体与心肌功能改善有关
Constantin-Cristian Topriceanu1,2,3,4, Mit Shah5,6, Matthew Webber1,2
1UCL MRC Unit for Lifelong Health and Ageing, University College London, London, UK.
BMC cardiovascular disorders
|March 21, 2024
概括
尽管增加了冠状动脉疾病风险,但APOE ε4等位基因可能会提供生存优势. 这项研究发现,APOE ε4载体表现出心脏功能的改善,特别是心肌收缩率 (MCF) 的提高,这表明潜在的益处解释了其持久性.
科学领域:
- 心血管成像 - 心血管成像
- 人类遗传学 人类遗传学
- 人口健康 人口健康
背景情况:
- 无脂蛋白E (APOE) ε4等位基因是冠状动脉疾病的已知危险因素.
- 它在人类群体中的持续流行表明了潜在的生存优势,这个概念被称为对抗性类.
研究的目的:
- 调查APOE ε4等位基因携带是否与左心室 (LV) 结构和功能指标有益或不利相关.
- 使用心声谱和心血管磁共振 (CMR) 探索APOE ε4载体的心脏表型.
主要方法:
- 分析了大约37,000名来自英国四大群体的数据:NSHD,SABRE,英国生物银行和ALSPAC.
- 使用心声学和CMR成像评估LV结构和功能参数.
主要成果:
- 与非载体相比,APOE ε4载体显示出相似的LV喷射分数,壁厚和质量.
- 在多个队列和成像方式中,在APOE ε4载体中观察到显著更高的肌心收缩分数 (MCF).
- 英国生物库的数据显示,e4等位基和MCF之间存在剂量反应关系,携带者也表现出更有利的菌株率.
结论:
- APOE ε4载体与心脏性能的改善有关,特别是心肌收缩率 (MCF) 的增强.
- 这种有利的心脏表型为APOE ε4.4所赋予的生存优势提供了证据.
- 这些发现有助于理解人类群体中APOE ε4等位基因的进化持久性.
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