1526-C1神经元激活对小鼠焦虑行为的调控作用 episode artwork

EPISODE · Sep 2, 2026 · 20 MIN

1526-C1神经元激活对小鼠焦虑行为的调控作用

from 聊聊Sci

这项研究揭示了位于脑干吻侧延髓外侧(RVLM)的C1神经元在调节焦虑及恐惧行为中的核心作用。科研人员利用先进的病毒交联技术,在小鼠模型中精确区分并操控了这些与肾上腺素合成相关的细胞。研究发现,压力刺激会激活C1神经元,而通过光遗传手段增强其活性会诱发明显的避嫌与焦虑反应。这种促焦虑效应主要是通过C1神经元向中脑导水管周围灰质(vlPAG)的投射实现的,该通路能增强兴奋性神经元的响应。相反,抑制C1神经元不仅能减少恐惧造成的僵直行为,还能在压力环境下产生抗焦虑效果。这些发现确立了C1神经元作为连接生理信号与复杂情绪的关键枢纽,并为开发针对焦虑障碍的新型治疗方案提供了科学依据。References:Fernández-Peña C, Pace R L, Fernando L M, et al. Autonomic C1 neurons promote anxiety via activation of vlPAG[J]. Neuron, 2026.前往小宇宙评论区与主播互动

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1526-C1神经元激活对小鼠焦虑行为的调控作用

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