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乙基酸盐保护大脑免受氧化损伤:一个Keap1-Nrf2-依赖的机制在脑下关节下出血

Mei Zhang¹, Xiaojiao Deng¹, Zhenfei Teng¹

¹Department of Neurosurgery, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang, China.

|September 11, 2025

概括

乙烯酸盐 (EP) 通过激活Keap1-Nrf2通路,通过激活下关节出血 (SAH) 后的早期脑损伤 (EBI) 进行保护. 这一途径减少了氧化应激和神经元损伤,显示了EP.

科学领域:

神经科学是一个神经科学.
生物化学生物化学
药理学药理学是指药理学的学科.

背景情况:

早期脑损伤 (EBI) 是次于下大脑关节出血 (SAH) 的严重并发症.
乙基酸盐 (EP) 在减轻SAH诱导的EBI方面表现有前途.
kelch-like ECH相关蛋白1 (Keap1) -核因子红色素2相关因子2 (Nrf2) 途径在EP的保护作用中的作用需要研究.

研究的目的:

在小鼠模型上研究乙基酸盐 (EP) 的神经保护机制,用于小鼠模型下arachnoid出血 (SAH).
阐明Keap1-Nrf2信号通路对EP对SAH诱导的早期脑损伤 (EBI) 的治疗效果的参与.
评估Nrf2激活对EP在减少氧化应激和神经元损伤方面的疗效的影响.

主要方法:

在大鼠中诱导了SAH,随后进行了EP治疗.
评估的大脑损伤标志物:大脑水含量,神经学得分,活性氧物种 (ROS) 水平和亡.
分析Keap1-Nrf2通路的基因和蛋白质表达,使用qRT-PCR和西部斑;执行Nrf2敲击以确认通路的参与.

主要成果:

EP治疗显著降低了大脑水含量,ROS水平和亡,同时改善了SAH大鼠的神经功能.
EP通过降低Keap1并增加Nrf2和HO-1表达来调节Keap1-Nrf2通路.
抑制Nrf2降低了EP的保护作用,证实了Nrf2在EP神经保护中的关键作用.

结论:

乙基酸盐通过调节Keap1-Nrf2信号通路来缓解SAH后的氧化应激和神经元损伤.
EP显示出作为治疗剂的潜力,可以改善脑下关节下出血患者的治疗结果.
准Keap1-Nrf2通路是治疗SAH诱导的大脑损伤的有希望的策略.

关键词:

脑损伤是因为脑损伤.乙烯酸乙烯是什么? 乙烯酸乙烯是什么核因子红色素2相关因子2的核因子.氧化应激是一种氧化应激.甲状腺下下垂体出血

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