Mas和pGCA受体的联合激活通过氧化/cGMP系统抑制Endothelin-1诱导的内皮功能障碍
Trupti Ghatage1, Sameer Singh2, Kalyaneswar Mandal2
1Department of Pharmacy, Birla Institute of Technology and Sciences (BITS) Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet, Hyderabad, Telangana 500078, India.
Biochimica et biophysica acta. Molecular basis of disease
|March 10, 2024
概括
一种新型的双重作用 (DAP) 通过协同激活Mas和pGCA受体,在高血压大鼠中有效地恢复了大动脉内皮功能. 与洛萨坦相比,这种在减轻血管损伤和恢复血管度方面表现出更高的疗效.
科学领域:
- 心血管研究研究心血管研究
- 内皮细胞生物学 内皮细胞生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 大动脉内皮通过血管扩展剂和血管收缩剂调节血管度.
- 内皮功能障碍是心血管疾病的早期标志物.
- 高血压与不平衡的内皮衍生因素有关.
研究的目的:
- 在DOCA盐诱导的高血压的小鼠模型中研究双重作用 (DAP) 的治疗潜力.
- 为了评估DAP的协同激活Mas和pGCA受体的能力.
- 评估DAP在恢复内皮功能和血管度方面的有效性.
主要方法:
- 在使用DOCA盐的雄性Wistar大鼠中诱导高血压.
- DAP,Ang1-7,BNP和洛萨坦被给予高血压大鼠.
- 通过组织学分析,同位测张力研究和初级大动脉内皮细胞调查来评估内皮功能.
主要成果:
- 多卡盐诱导血压 (BP) 和水摄入量显著增加,降低Mas和PGCA受体表达的调节.
- DAP治疗减轻了血压升高,调高了Mas和pGCA受体,并使生理参数正常化.
- DAP有效地减少了纤维化,炎症和血管化,超过了标准药物洛萨坦.
结论:
- 通过DAP对Mas和pGCA受体的联合激活可以减轻高血压中血管损伤.
- DAP通过重新平衡血管扩张 (NO) 和血管收缩 (ET1) 途径来增强内皮功能.
- DAP为内皮功能障碍和相关心血管疾病提供了一个有前途的治疗策略.
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