在耐高血压患者中,乙酸度与MSNA相关
Revathy Carnagarin1, Gianni Sesa-Ashton2, Natalie C Ward1
1Dobney Hypertension Centre, Medical School, Royal Perth Hospital Unit and RPH Research Foundation, The University of Western Australia, Level 3, MRF Building, 50 Rear Murray Street, Perth, WA, 6000, Australia.
概括
短链脂肪酸 (SCFA),特别是酸盐,可以通过减少交感神经系统活动来降低血压. 抗性高血压中较低的乙酸盐水平与增加的同情驱动相关.
科学领域:
- 心血管生理学心血管生理学
- 肠-大脑轴研究研究
- 代谢学 代谢学 代谢学
背景情况:
- 短链脂肪酸 (SCFA) 是与血压 (BP) 调节相关的肠道微生物代谢物.
- 增加SCFA的饮食干预措施显示出在高血压患者中降低高血压的潜力.
- 通过SCFA影响BP的确切机制,特别是通过肠-大脑轴和交感神经系统,仍然不清楚.
研究的目的:
- 调查对抗性高血压 (RH) 和健康对照 (HC) 患者的交感驱动和血清SCFA度之间的关系.
- 探索肠-大脑轴在调解SCFA的心血管影响中的作用.
主要方法:
- 微神经图被用来测量肌肉交感神经活动 (MSNA).
- 记录了自动办公室血压 (AOBP).
- 在21名RH患者和28名HC患者中量化了血清SCFA水平.
主要成果:
- 与HC相比,患有RH的患者表现出明显更高的AOBP和MSNA爆发频率.
- 血清酸盐水平在RH患者中明显低于HC患者.
- 在RH患者的血清酸盐水平和MSNA爆发频率之间观察到显著的反相关性.
结论:
- 血清乙酸盐水平的降低可能与耐性高血压中同情驱动的升高有关.
- 这些发现表明,SCFA,特别是酸盐,可能通过交抑制产生有益的心血管作用.
- 改变的交感血管转导也可能在SCFA介导的血压调节中发挥作用.
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