1205-多巴胺回路调控慢性痛与焦虑抑郁的受体机制 episode artwork

EPISODE · Jun 29, 2026 · 21 MIN

1205-多巴胺回路调控慢性痛与焦虑抑郁的受体机制

from 聊聊Sci

该研究揭示了中脑皮层多巴胺环路在调控慢性疼痛及其共病焦虑抑郁中的细胞与受体机制。研究发现,三叉神经痛会导致VTA-OFC(腹侧被盖区至眶额皮层)环路处于低多巴胺状态,而激活该通路能同时缓解疼痛与负面情绪。具体而言,OFC D1受体神经元通过投射至LDTg(背外侧被盖核)独立介导抗抑郁效应,而OFC D2受体神经元则通过投射至BLA(基底外侧杏仁核)专门发挥镇痛作用。这种功能分离的发现不仅阐明了感觉异常与情感障碍的不同神经编码路径,也为临床治疗慢性疼痛及其心理并发症提供了精准靶向的新策略。研究强调,选择性干预特定的多巴胺受体亚型,是优化临床镇痛与改善心理健康的关键。References:Cai Y Q, Hou X Y, Wang G H, et al. Receptor and cell-type-specific mechanisms in mesocortical dopamine circuits gate chronic pain and comorbid anxiodepression[J]. Neuron, 2026.前往小宇宙评论区与主播互动

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1205-多巴胺回路调控慢性痛与焦虑抑郁的受体机制

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