心力衰竭患者的低氧反应能力和肠道发酵能力:初步结果
Aleksandra Mikołajczak1,2, Rafał Seredyński1, Marzena Gonerska1
1Department of Physiology and Pathophysiology, Wroclaw Medical University, Wroclaw, Poland.
Frontiers in physiology
|January 26, 2026
概括
用乳糖增强肠道发酵可能会改善心力衰竭 (HF) 患者的外周化学受体敏感性. 这表明肠道健康和高频心血管调节之间存在联系.
科学领域:
- 心血管生理学心血管生理学
- 胃肠病学 胃肠病学
- 微生物组研究 微生物组研究
背景情况:
- 肠道微生物群显著影响心血管调节.
- 乳糖诱导的发酵增强了健康个体的缺氧呼吸反应 (HVR) 和外周化学受体 (PCh) 反应能力.
- 心力衰竭 (HF) 与高PCh过活性有关,使其成为干预的目标.
研究的目的:
- 调查刺激肠道发酵是否能在HF患者中急性改变化学受体驱动的心血管和呼吸系统反应.
- 探索肠道发酵能力和HF中的PCh灵敏度之间的关系.
主要方法:
- 十二名男性HF患者接受了两次过渡性缺氧测试,在摄入刺激肠发酵的食物之前和之后.
- 测量过期的空气含量,将患者分为高早期发酵 (HEF) 和低早期发酵 (LEF) 组.
- 评估了呼吸系统 (HVR) 和心血管 (心率,血压,全身血管抵抗) 对缺氧的反应.
主要成果:
- 与LEF患者相比,HEF患者的HVR显著更高 (p=0.024).
- 在摄入乳糖前和摄入乳糖后,HEF患者对低氧反应的系统血管抵抗 (SVR) 反应更加明显 (分别为p=0.039和p=0.026).
- 在HEF患者的HVR和净排泄之间观察到强烈的相关性 (r=0.85,p=0.033).
结论:
- 初步发现表明,肠道上部微生物发酵能力与HF患者的基线外周化学反射灵敏度之间存在联系.
- 这项研究强调了肠道发酵调节在管理高频率心血管调节中的潜在作用.
- 需要更大规模的受控研究来证实这些探索性发现及其临床意义.
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