钟峰兴纳液通过sirtuin1 (SIRT1) /核因子红色素2相关因子2 (Nrf2) /血氧酶1 (HO-1) 途径改善中风后的认知障碍
Wenqin Yang1, Wen Wen1, Hao Chen1
1State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Institute of Material Medica Integration and Transformation for Brain Disorders, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
Chinese journal of natural medicines
|January 24, 2025
概括
钟峰兴纳液 (ZFXN) 通过激活sirtuin1 (SIRT1) /核因子红色素2相关因子2 (Nrf2) /血液氧化酶1 (HO-1) 途径来防止中风引起的认知损伤. 这种机制涉及防止线粒体损伤和抑制亡.
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:
- 脑卒中后认知障碍 (PSCI) 是一个重大的临床挑战.
- 已知sirtuin1 (SIRT1) /核因子红色素2相关因子2 (Nrf2) /血氧酶1 (HO-1) 途径可以对抗氧化应激和亡.
- 钟兴纳流动 (ZFXN) 在改善PSCI方面表现有前途,但其潜在机制需要阐明.
研究的目的:
- 研究ZFXN是否通过激活SIRT1/Nrf2/HO-1通路来保护PSCI.
- 在中风模型中评估ZFXN对线粒体功能,亡和氧化应激的影响.
- 在体内和体外阐明ZFXN的神经保护机制.
主要方法:
- 使用SH-SY5Y细胞建立了氧-葡萄糖剥夺 (OGD) 细胞模型,以及用于PSCI的2血管封闭 (2VO) 鼠模型.
- 评估认知功能,突触可塑性和神经元完整性.
- 测量了反应性氧物种 (ROS),麦隆迪阿尔代海德 (MDA),超氧化失调酶 (SOD),催化酶 (CAT) 和谷氨 (GSH) 的水平.
- 评估了线粒体膜潜力 (MMP),Tom20强度,ATP,能量电荷 (EC),以及线粒体复合体I和III活动.
- 量化B细胞淋巴瘤2 (Bcl2) /Bcl2-关联的X (Bax) 比率和终端脱氧核胺转移酶介导的dUTP结标记 (TUNEL) 阳性细胞.
- 确定SIRT1活性和SIRT1,核Nrf2和HO-1的水平,有或没有SIRT1抑制 (EX-527).
主要成果:
- 在PSCI模型中,ZFXN显著改善了学习和记忆,突触可塑性和神经元功能.
- ZFXN表现出强大的抗氧化作用,减少ROS和MDA,同时增加SOD,CAT和GSH.
- ZFXN增强了线粒体功能,由增加的MMP,Tom20强度,ATP,EC和线粒体复合体I / III活动证明.
- ZFXN增加了Bcl2/Bax比,减少了TUNEL+细胞,并激活了SIRT1/Nrf2/HO-1通路.
- 在体外,SIRT1抑制逆转了ZFXN的保护作用.
结论:
- 通过激活SIRT1/Nrf2/HO-1通路,ZFXN可以缓解中风后的认知障碍.
- ZFXN通过防止线粒体损伤和抑制亡来保护神经元.
- 这些发现为ZFXN对PSCI的治疗潜力提供了机制性的见解.
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