在2型糖尿病中血管氧化耐药性
Zahra Bahadoran1, Parvin Mirmiran2, Khosrow Kashfi3
1Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Cell death & disease
|July 11, 2023
概括
2型糖尿病导致血管氧化 (NO•) 抵抗,损害血管功能,增加心血管风险. 机制包括减少NO•生产,增加无活化,以及由高血糖和胰岛素抵抗驱动的光滑肌肉细胞反应受损.
科学领域:
- 心血管研究研究心血管研究
- 内分泌学 在内分泌学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 血管氧化 (NO•) 抵抗在2型糖尿病 (T2D) 中普遍存在,有助于心血管并发症.
- 在宏观和微观血管中受NO介导的血管扩张受损是T2D的标志.
- 这种耐药性与T2D患者心血管事件和死亡率的增加有关.
研究的目的:
- 审查T2D中血管NO•耐药性的实验和人类证据.
- 讨论导致这种抵抗的潜在分子和细胞机制.
- 为了确定干预的潜在药理目标.
主要方法:
- 对人类研究的分析量化了对NO•和NO•捐赠者的血管反应.
- 对实验数据的审查阐明了NO•抗性的机制.
- 综合证据,将高血糖,氧化应激和胰岛素抵抗与NO•通路功能障碍联系起来.
主要成果:
- 患有T2D的患者表现出显著减少的内皮依赖血管扩张 (13-94%) 和对NO•捐赠者的反应 (6-42%).
- 关键机制包括减少NO•生产,增加NO•无活化,以及血管光滑肌肉细胞响应能力受损.
- 高血糖引起的活性氧物种 (ROS) 过度产生和血管胰岛素抵抗是关键的贡献者.
结论:
- 针对NO•可用性,NO•信号通路和ROS生产是有前途的治疗策略.
- 药理干预可以帮助克服T2D诱导的血管NO•抵抗.
- 解决这些机制可能会减轻与T2D相关的心血管风险.
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