酸通过抗氧化作用改善睡眠不足引起的认知障碍
Xiaogang Pang1,2, Yifan Xu3, Shuoxin Xie1
1Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
睡眠不足会减少大脑中神经元的活动.
科学领域:
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 睡眠不足 (SD) 显著影响情绪障碍,如抑郁和焦虑.
- 在SD期间神经元活动的变化尚未完全理解.
- 关于SD是否减少或增强神经元活动,存在相互矛盾的理论.
研究的目的:
- 为了研究睡眠剥夺期间前带带皮层 (ACC) 中神经元活动的动态变化.
- 探索睡眠剥夺对神经元过渡物和氧化应激的影响.
- 评估酸 (GA) 在缓解SD诱导损伤方面的潜力.
主要方法:
- 在体内使用双光子显微镜观察清醒小鼠中ACC神经过渡物.
- 全细胞补丁记录以评估自发刺激后突触电流 (sEPSCs).
- 测量氧化应激标记物:马隆迪阿尔海德 (MDA),Nrf2和超氧化物脱酶 (SOD).
主要成果:
- SD降低了Ca2+过渡的频率和幅度,并在ACC中增加了不活跃的神经元.
- SD导致SEPSC频率显著下降.
- SD提高了MDA水平,同时降低了Nrf2表达和SOD活性.
- 酸 (GA) 的使用逆转了这些影响,缓解了的短暂下降和氧化应激.
结论:
- 睡眠不足会导致ACC神经转移的可逆性下降.
- SD诱导氧化应激,并损害神经元功能.
- 酸显示出预防和治疗与睡眠剥夺相关的认知障碍的潜力.
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