在肥胖相关高血压的老鼠中,阿德里诺梅杜林通过受体-Akt通路改善了内皮功能障碍
概括
通过增加氧化 (NO),通过受体-Akt通路减少炎症和氧化应激,改善肥胖相关高血压中的内皮功能障碍.
科学领域:
- 心血管生物学 心血管生物学
- 内分泌学 在内分泌学.
- 分子医学是分子医学.
背景情况:
- 与肥胖相关的高血压 (OH) 与内皮功能障碍,周围血管抵抗性升高和腺素 (ADM) 增加有关.
- 在OH中内皮功能障碍涉及氧化 (NO) 生物可用性降低,炎症和氧化应激.
研究的目的:
- 调查ADM对OH.内皮功能障碍的治疗作用.
- 阐明ADM在OH中的作用的基础分子机制.
主要方法:
- 使用高脂肪饮食诱导的OH大鼠模型和用棕酸处理的人类静脉内皮细胞 (HUVECs).
- 分析了血管反应,蛋白质表达 (西方斑) 和信号通路 (Akt).
- 用ADM的管理和受体对抗作用来评估ADM的影响.
主要成果:
- 在OH大鼠中,高血压,内皮功能障碍,eNOS/Akt激活减少,炎症/ROS增加.
- 在OH大鼠中,ADM治疗改善了高血压,内皮功能,eNOS/Akt激活,并减轻了炎症/氧化应激.
- ADM增加了NO的产生,并通过其受体在PA刺激的HUVEC中激活了eNOS/Akt,显示出抗炎和抗氧化作用.
结论:
- 在OH中的内皮功能障碍部分是由于NO的减少和炎症/氧化应激的增加.
- 通过增强NO的产生和施加抗炎和抗氧化作用,ADM的使用可改善OH和内皮功能障碍.
- ADM的有益作用通过ADM受体-Akt信号通路进行介导.
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