传感器对巴罗反射介导的交感循环调节的影响:一个开放循环分析
Aimi Yokoi1,2, Toru Kawada1, Shohei Yokota1
1Department of Cardiovascular Dynamics, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
PloS one
|August 11, 2023
概括
维里西瓜和酸都通过外周作用降低血压,但传递酸盐.
科学领域:
- 心血管药理学心血管药理学
- 自主神经系统的调节规则
- 翻译研究是翻译研究.
背景情况:
- 溶性酸环酶 (sGC) 刺激剂代表了心血管疾病的新型治疗类.
- 了解sGC刺激对自主心血管调节的影响对于优化治疗策略至关重要.
- 氧化 (NO) 捐赠者是已知的血管扩展剂,为比较提供了一个基准.
研究的目的:
- 为了比较sGC刺激器输送器与NO捐赠者酸对自主心血管调节的体内效应.
- 研究这些药物如何调节交感神经活动 (SNA) 和全身血管抵抗 (SVR) 之间的关系.
主要方法:
- 被麻醉的Wistar-Kyoto老鼠接受了持续静脉注射的 vericiguat或酸.
- 评估了对交感神经活动 (SNA),动脉压 (AP),中央静脉压 (CVP) 和大动脉流量 (AoF) 的巴罗反射介导的变化.
- 计算了全身血管阻力 (SVR),并分析了SNA-SVR关系.
主要成果:
- 输送和酸都没有改变巴罗反射介导的SNA反应.
- 这两种药物都通过外周血管扩张作用降低了AP.
- 韦里西瓜特在较高的SNA和AP水平下显示出剂量依赖的血管扩张的强化,与酸的均作用不同.
结论:
- 韦里西瓜特和酸对外周围血管扩张有作用,但不会改变巴罗反射灵敏度.
- 维里西瓜特的血管扩张功效随着交感音调的提高而增加,这表明SGC敏感性增强.
- 这些发现提供了对sGC刺激器与NO捐赠者的独特心血管调节机制的见解.
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