通过调节由AMPK/Drp1信号通路介导的线粒体动力学,Rg1改善了阿尔茨海默病
Yini Zhang1, Shangzhi Liu2, Di Cao1
1Hubei University of Chinese Medicine, Basic Medical College, Wuhan, Hubei, 430070, China; Engineering Research Center of TCM Protection Technology and New Product Development for the Elderly Brain Health, Ministry of Education, Wuhan, Hubei, 430070, China; Hubei Shizhen Laboratory, Wuhan, Hubei, 430070, China.
Journal of ethnopharmacology
|December 29, 2024
概括
金色化物Rg1 (Rg1) 治疗改善了认知功能,并减少了阿尔茨海默氏症.
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.
- 生物化学 生物化学
背景情况:
- 阿尔茨海默氏病 (AD) 的发病包括粉样β (Aβ) 沉积,高酸化,神经炎症和线粒体功能障碍.
- 人参中的主要活性化合物人参化物Rg1 (Rg1) 具有神经保护作用,但其通过线粒体动态对AD的影响尚不清楚.
- 目前的阿尔茨海默病治疗提供了症状缓解,但没有治愈,强调了需要新的治疗策略.
研究的目的:
- 评估Rg1在阿尔茨海默病 (AD) 模型中的治疗潜力.
- 研究Rg1的神经保护机制,重点关注线粒体动力学.
- 评估Rg1对认知功能的影响,Aβ病理以及体内和体外突触完整性的影响.
主要方法:
- 用APP/PS1双转基因小鼠和Aβ42诱导的HT22细胞作为AD模型.
- 给小鼠服用Rg1剂量为5和10毫克/公斤/天,持续28天;多尼佩西尔作为阳性对照.
- 评估了认知功能,Aβ沉积,突触蛋白水平,线粒体功能以及相关的信号通路 (AMPK/Drp1).
主要成果:
- 在APP/PS1小鼠中,Rg1治疗改善了认知缺陷,减少了Aβ沉积,并减轻了神经元损失.
- Rg1激活了AMPK,抑制了DRp1介导的线粒体裂变,并促进了线粒体融合.
- 在HT22细胞中,Rg1逆转了Aβ42诱导的线粒体功能障碍和氧化应激.
结论:
- 金色化物Rg1在阿尔茨海默病模型中显示出神经保护作用.
- Rg1通过AMPK/Drp1信号通路调节线粒体动力学.
- 通过改善突触和线粒体功能,Rg1具有治疗阿尔茨海默病的潜力.
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