通过植物性饮食预防和逆转高血压引起的冠状动脉微血管功能障碍
Rami S Najjar1, Nedumangalam Hekmatyar2, Yanling Wang1
1Center for Inflammation, Immunity and Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA.
bioRxiv : the preprint server for biology
|August 13, 2025
概括
一种植物性饮食 (PBD) 在高血压大鼠中预防和逆转冠状动脉微血管功能障碍 (CMD). 这种饮食干预改善了内皮和血管光滑肌肉细胞功能,为心血管健康提供了潜在的好处.
科学领域:
- 心血管科学 心血管科学
- 营养科学 营养科学
- 高血压研究 高血压研究
背景情况:
- 冠状动脉微血管功能障碍 (CMD) 与不良的心血管结果有关.
- 冠状动脉疾病源于内皮和血管光滑肌细胞 (VSMC) 功能障碍.
- 高血压加剧CMD,需要有效的干预措施.
研究的目的:
- 为了调查植物性饮食 (PBD) 是否可以在高血压的老鼠模型中减轻CMD.
- 在高血压的背景下,评估PBD对内皮和VSMC功能的影响.
- 探索PBD对CMD影响的机制,包括氧化应激和炎症.
主要方法:
- 比较Wistar-Kyoto和自发高血压大鼠 (SHRs) 在对照或PBD.
- 通过心声回声和心磁共振成像 (cMRI) 评估CMD.
- 评估内皮和VSMC功能,氧化应激,炎症和心脏组织纤维化.
主要成果:
- SHRs显示内皮细胞和VSMC功能障碍.
- PBD没有降低血压,但有效地预防和逆转CMD.
- PBD改善了内皮氧化合成酶功能,减少了氧化应激,炎症和纤维化.
结论:
- 在高血压大鼠中,PBD有效预防和逆转CMD.
- PBD的好处与改善的内皮和VSMC功能有关,独立于降低血压.
- 这些发现支持对人类CMD的PBDs的临床试验.
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