在大鼠大脑皮层中,糖尿病诱导的氨酸- ангиотензин系统的刺激
Abeeb Oyesiji Abiodun1, Dalia I AlDosari1, Amani Alghamdi1
1Biochemistry Department, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia.
Saudi journal of biological sciences
|September 4, 2023
概括
糖尿病和高血压增加了脑血管疾病的风险. 这项研究表明,糖尿病会过度激活大脑.
科学领域:
- 神经科学是一个神经科学.
- 内分泌学 在内分泌学.
- 心血管研究研究心血管研究
背景情况:
- 脑血管疾病对糖尿病和高血压患者构成重大威胁.
- 糖尿病可以通过刺激大脑的氨酸-血管新生素系统 (RAS) 来诱导神经缺陷和中风.
- RAS的组成部分,如血管素转化酶 (ACE),血管素-II (Ang-II) 和血管素1型受体 (AT1R),都与神经系统疾病有关.
研究的目的:
- 研究糖尿病和高血压对大鼠前皮层中关键RAS组件调节的影响.
- 阐明RAS过度激活在糖尿病相关的神经退行症和认知障碍中的作用.
主要方法:
- 利用了链毒素诱导的糖尿病大鼠和自发高血压大鼠 (SHR),包括糖尿病-SHR模型.
- 在被切割的前皮层组织上进行了生化和西方斑点分析.
- 血管新生素,AT1R和MAS受体的量化水平.
主要成果:
- 在SHR大鼠中观察到心血压升高,SHR和糖尿病SHR大鼠之间没有显著差异.
- 与SHR大鼠相比,糖尿病SHR大鼠表现出较低的心跳.
- 与对照组相比,在糖尿病和高血压大鼠的前皮层中发现了AT1R水平的增加和下调的MAS受体表达.
结论:
- 糖尿病引起的RAS过度激活会对大脑皮质产生负面影响.
- 这些变化可能会导致神经退行和认知障碍.
- 针对RAS可能是一个潜在的治疗策略,用于管理糖尿病和高血压患者的脑血管并发症.
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