在老鼠中,急性psilocybin增加了皮质活动
Junhong Liu1, Yuanyuan Wang1,2, Ke Xia1
1State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Key Laboratory of Neuropsychopharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing, China.
Frontiers in neuroscience
|June 8, 2023
概括
西显著增加大脑活动和功能连接在老鼠,特别是在皮质和条纹区域. 这些在动物中的发现反映了人类的反应,表明psilocybin共享的神经生物学机制.
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.
- 神经成像是一种神经成像.
背景情况:
- 魔法中的一种化合物psilocybin具有精神活性作用,但其机制尚未完全理解.
- 功能性磁共振成像 (fMRI) 对于研究大脑活动变化的非侵入性非常有价值.
- 以前的研究还没有彻底研究了psilocybin在老鼠中的fMRI影响.
研究的目的:
- 研究psilocybin对大鼠休息状态大脑活动和功能连接 (FC) 的影响.
- 为了将大脑活动的变化与EGR1的表达相关联,EGR1是与抑郁症状相关的早期基因.
主要方法:
- 使用BOLD fMRI测量大脑活动和CF在psilocybin管理后老鼠.
- 使用免疫光 (IF) 来评估脑组织中的EGR1水平.
- 根据兴趣地区 (ROI) 进行了FC分析和基于种子的分析.
主要成果:
- псилоцибин (2.0毫克/公斤) 诱导了前额,叶和叶皮层,海马体和条纹体中的积极大脑活动.
- 在带状皮层,背状条纹体,前皮和边缘区域之间观察到功能连接的增加.
- 急性psilocybin的使用导致整个大脑的EGR1水平升高,这与观察到的过度活跃性一致.
结论:
- псилоцибин在老鼠中诱导过度活动的大脑状态,其特点是大脑关键区域的活动和连接性增加.
- 在老鼠中观察到的神经生物学效应与在人类中观察到的效应一致,这表明保留了机制.
- 这些发现提供了关于 псилоцибин药理作用的神经生物学基础的见解.
关键词:
5-HT2A是一种5-HT2A.这是一个大胆的表现.EGR1 (早期生长反应蛋白1)抑郁 抑郁症 抑郁症 抑郁症 抑郁症功能磁力共振成像 (fMRI) 是一种功能连接 (FC) 的功能连接 (FC)这种药物是psilocybin.迷幻药物 迷幻药物是一种精神药物.更多相关视频
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