在右心力衰竭中,Apolipoprotein M 在右心力衰竭中
medRxiv : the preprint server for health sciences
|December 25, 2025
概括
较低的Apolipoprotein M (ApoM) 水平表明右心力衰竭 (RHF) 的结果更差. 恢复ApoM保护心脏,减少肝脏拥堵,突出其在心肝轴上的作用.
科学领域:
- 心脏病学 心脏病学
- 肝病学 肝病学是一种肝病学.
- 生物化学 生物化学
背景情况:
- 右心力衰竭 (RHF) 由于中心静脉压力升高,导致肝脏拥堵.
- 阿波利波蛋白M (ApoM) 是一种高密度脂蛋白结合的脂卡林,它运输着对血管完整性和炎症调节至关重要的斯芬戈辛-1-酸盐 (S1P).
- 低ApoM水平与心力衰竭 (HF) 的不良结果有关,但其在RHF中的具体作用尚不清楚.
研究的目的:
- 调查RHF对循环ApoM水平的影响.
- 为了确定ApoM在RHF相关死亡率中的预后价值.
- 探索ApoM在心肝轴中的功能作用.
主要方法:
- 根据右心导管治疗,患者被分为正常,高频或低频组.
- 使用ELISA量化血清ApoM和S1P水平.
- 转基因 (Tg) 和野生型 (WT) ApoM小鼠接受了肺动脉带化 (PAB) 或部分下静脉结 (pIVCL) 来分别模拟RHF和肝脏拥堵. 分析了心脏和肝脏组织.
主要成果:
- 患有RHF的患者表现出最低的ApoM水平,与炎症标志物相反相关.
- 每增加0.01μM的ApoM与6%的死亡风险降低有关.
- 在小鼠中,PAB降低了WT小鼠中的ApoM;ApoM Tg小鼠显示了减弱的RV重塑和较少的肝脏拥堵. 然而,接受pIVCL的ApoM Tg小鼠没有改善肝病理.
结论:
- 在RHF患者和RV功能障碍的小鼠中,循环ApoM减少.
- 较低的ApoM水平是RHF中不良结果的独立预测因素.
- 恢复ApoM主要有利于心脏,随后改善肝脏拥堵,强调其在心肝轴中对RHF管理的关键作用.
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