过度表达SESN1可以改善线粒体损伤和线粒体,这是麻醉后认知功能障碍的潜在治疗策略
Li Sun1, Xiaoya Hong1, Daliang Wang1
1Department of Anesthesiology, The Affiliated Huai'an No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, China.
The European journal of neuroscience
|December 18, 2023
概括
塞斯特林1 (SESN1) 过度表达通过减少神经炎症和改善线粒体功能来保护大鼠免受塞沃兰诱导的认知障碍. 这表明SESN1是术后认知功能障碍 (POCD) 的潜在治疗标.
科学领域:
- 神经科学是一个神经科学.
- 麻醉学 麻醉学
- 细胞生物学 细胞生物学
背景情况:
- 手术后认知功能障碍 (POCD) 是一种常见的并发症,特别是在老年患者中.
- 黄麻醉与POCD有关,但涉及Sestrin1 (SESN1) 的潜在机制尚不清楚.
- SESN1是一种对压力反应的蛋白质,对细胞平衡和保护至关重要.
研究的目的:
- 在大鼠模型中研究SESN1对抗sevoflurane诱导的认知障碍的保护作用.
- 阐明SESN1调节神经炎症,线粒体功能和线粒体衰变的机制.
- 探索SIRT1在SESN1神经保护作用中的潜在参与.
主要方法:
- 在Sprague-Dawley大鼠中使用SESN1转感染的sevoflurane诱导的认知功能障碍模型.
- 使用莫里斯水迷宫测试进行行为评估.
- 生物化学和分子分析:ELISA,西式斑点,炎症标记物的免疫光,菌体,氧化应激和ATP水平.
主要成果:
- 过度表达SESN1显著减轻了花诱导的认知缺陷.
- SESN1降低了神经炎症,炎症酶激活和氧化应激标志物 (甲).
- SESN1 增强了线粒体功能 (超氧化解突变酶,ATP水平) 并促进了线粒体.
结论:
- SESN1在减轻花诱导的认知障碍方面发挥着至关重要的作用.
- 通过抑制炎症酶激活,改善线粒体功能,并通过SIRT1激活促进线粒体衰变,SESN1发挥神经保护作用.
- 在预防和治疗POCD方面,SESN1是一个有前途的治疗点.
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