微质AT1R条件淘汰赛通过减少微质炎症反应来改善低性认知障碍
Deyue Li1, Qiao Zhang2, Xia Yang3
1Department of Pharmacy, The Second Affiliated (Xinqiao) Hospital, The Army (Third Military) Medical University, Chongqing, China.
Neuroscience
|March 14, 2024
概括
向微质中的血管激素II型I受体 (AT1R) 可以对抗慢性大脑低 perfusion (CCH) 引起的认知障碍. 阻断AT1R可以减少神经炎症,并改善血管痴呆模型中的大脑功能.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 病理学 病理学 病理学
背景情况:
- 慢性大脑缺血 (CCH) 是血管认知障碍和痴呆症的重要原因.
- 在CCH期间,血管激素II型I受体 (AT1R) 在中枢神经系统中的确切作用仍然不完全理解.
研究的目的:
- 在CCH的背景下调查微质AT1R的特定功能.
- 评估AT1R对抗在缓解CCH诱导的认知缺陷的治疗潜力.
主要方法:
- 利用双侧动脉狭窄 (BCAS) 模型来诱导CCH.
- 雇佣了微质AT1R的有条件淘汰和用candesartan进行药理封锁.
- 评估认知功能,微质激活,炎症反应和脑血流 (CBF).
主要成果:
- 在海马体和海马体微质中,CCH显著增加了AT1R表达.
- 微质AT1R的条件淘汰和candesartan治疗改善了认知障碍.
- 这些干预措施减少了神经炎症和微质激活,恢复了CBF,但在BCAS后28天没有观察到显著的神经元损失.
- 已确定与CCH相关的枢纽基因 (Ctss,Fcer1g,Tyrobp).
结论:
- 微质AT1R通过调节神经炎症,在加剧CCH诱导的认知障碍方面发挥着关键作用.
- AT1R对抗是一种有前途的治疗策略,用于管理与CCH和血管痴呆症相关的认知衰退.
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