急性西洛辛增加了大鼠皮质活动
Junhong Liu1, Yuanyuan Wang1,2, Ke Xia1
1Stake Key Laboratory of National Security Specially Needed Medicines, Beijing, China.
Frontiers in neuroscience
|February 20, 2026
概括
西洛辛显著增加大脑活动和功能连接在老鼠,反映人类的反应. 这种通过EGR1基因表达证明的神经激活的增加,可能解释了psilocin.
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:
- 魔法中的精神活性化合物psilocin具有已知的效果,但机理理解有限.
- 功能性磁共振成像 (fMRI) 对于研究大脑活动变化的非侵入性至关重要.
- 西洛辛对使用fMRI的老鼠大脑活动的影响仍未得到充分研究.
研究的目的:
- 为了研究psilocin对大鼠大脑活动和功能连接 (FC) 的影响.
- 为了将fMRI发现与EGR1的表达相关联,EGR1是与抑郁症相关的早期基因.
主要方法:
- 使用BOLD fMRI监测大脑活动在小鼠后,西洛辛的管理.
- 进行了兴趣地区 (ROI) 智能的FC分析和基于种子的分析.
- 使用免疫光 (IF) 来评估神经激活的量化EGR1表达.
主要成果:
- 施洛辛注射 (2.0 mg/kg) 在皮质,海马和条纹区域增加了大脑活动.
- 在几个大脑区域之间观察到增强的功能连接,包括带状皮质和条纹体.
- 在皮质和条纹区域增加EGR1水平与fMRI检测到的大脑激活相关.
结论:
- 西洛辛在老鼠中诱导过度活动的大脑状态,与观察到的人类效应一致.
- 增加的大脑活动,增强的FC和EGR1上调可能有助于psilocin的药理作用.
- 这项研究在临床前模型中提供了宝贵的神经成像洞察力,了解了西洛辛的作用机制.
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