睡眠不足对焦虑抑郁类行为和神经炎症的影响
Dandan Cao1, Yi Zhao2, Yuting Wang3
1Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangdong, Guangzhou, China; Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangdong, Guangzhou, China.
Brain research
|April 12, 2024
概括
在小鼠中,睡眠不足诱导了焦虑和类似抑郁的行为,以及神经炎症. 这突显了睡眠障碍,中枢神经系统炎症和情绪障碍之间的联系.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 分子生物学分子生物学
背景情况:
- 抑郁症的特点是情绪低落和睡眠障碍,预计将成为全球主要的健康问题.
- 睡眠不足作为一种压力因素,在中枢神经系统中启动神经炎症.
- 由炎症媒介驱动的神经炎症,有助于抑郁症症状,如焦虑和无情感.
研究的目的:
- 为了研究睡眠不足对小鼠焦虑和抑郁类行为的影响.
- 探索潜在的神经炎症机制,包括时钟基因和Sirt6/Hmgb1通路的作用.
主要方法:
- 在小鼠中通过睡眠剥夺诱导焦虑和抑郁类行为.
- 使用提升零迷宫 (EZM),提升加迷宫 (EPM),尾部悬挂测试 (TST),强迫游泳测试 (FST) 和糖偏好测试 (SPT) 的行为评估.
- 基因组学分析 (H&E,Nissl染色) 中间前额叶皮层 (mPFC) 形态,血清皮质 (CORT) 测量,以及时钟基因,Sirt6,Hmgb1和炎症因子的分子分析 (RT-qPCR,西部涂抹,免疫光).
主要成果:
- 睡眠不足引起的行为变化表明焦虑和抑郁,包括减少探索和偏好糖.
- 观察到血清中CORT水平升高以及时钟基因,促炎细胞因子 (IL-6,IL-1β,TNFα) 和相关分子 (Cox-2,iNOS,Sirt6,Hmgb1) 的表达增加.
- 检测到mPFC的形态变化.
结论:
- 睡眠不足会引发焦虑和抑郁类行为以及神经炎症.
- 时钟基因转录和mPFC中的Sirt6/Hmgb1通路的激活与睡眠剥夺引起的情绪障碍相关的炎症反应有关.
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