939-下丘脑瘦素受体神经元对抗焦虑并调节适应性行为 episode artwork

EPISODE · May 9, 2026 · 21 MIN

939-下丘脑瘦素受体神经元对抗焦虑并调节适应性行为

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这篇研究论文揭示了外侧下丘脑(LH)中表达瘦素受体(LepR)的神经元在调节焦虑与生存行为平衡中的核心作用。研究通过单细胞钙成像发现,这些神经元在面临焦虑刺激(如开放空间或陌生进食环境)时会被激活,从而帮助动物克服恐惧以执行探索或进食等必要活动。实验表明,前额叶皮层(PFC)的输入在焦虑程度较高的个体中会抑制这群神经元,导致其无法有效发挥抗焦虑功能。在神经性厌食症模型中,激活这群神经元能显著减少因焦虑导致的过度运动,起到保护能量的作用。此外,转录组分析将 Ebf1 等风险基因与这一神经群体的功能联系起来,为理解焦虑症与进食障碍的共病机制提供了分子基础。总之,LepRLH 神经元是应对压力环境、实现适应性行为响应的关键神经节点。References:Figge-Schlensok R, Petzold A, Hugger N, et al. A lateral hypothalamic neuronal population expressing leptin receptors counteracts anxiety to enable adaptive behavioral responses[J]. Nature Neuroscience, 2025: 1-11.前往小宇宙评论区与主播互动

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939-下丘脑瘦素受体神经元对抗焦虑并调节适应性行为

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