1436-视前区-下丘脑神经环路介导缺血性脑保护 episode artwork

EPISODE · Aug 15, 2026 · 23 MIN

1436-视前区-下丘脑神经环路介导缺血性脑保护

from 聊聊Sci

本研究探讨了通过调节下丘脑神经通路诱导内源性低温,以此作为缺血性中风神经保护的新策略。研究人员利用化学遗传学和光遗传学技术,证实了抑制背侧内侧下丘脑(DMH)的GABA能神经元或激活从腹外侧视前区(vlPOA)到DMH的神经投射,均能显著降低小鼠的核心体温。这种生理性降温有效减少了脑梗死体积、减轻了脑水肿,并通过抑制星形胶质细胞的毒性转化来保护神经元。实验数据表明,该通路能减少缺血再灌注损伤,且相比传统体外冷却手段,更有望规避严重的临床副作用。这一发现为开发针对中风的临床神经保护疗法提供了极具潜力的科学靶点。References:Dilsiz P, Ozpinar A, Balaban B, et al. GABAergic ventrolateral preoptic projection to dorsomedial hypothalamus recapitulates post-ischemic neuroprotection by hypothermia[J]. Cell Death & Disease, 2026, 17(1): 304.前往小宇宙评论区与主播互动

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1436-视前区-下丘脑神经环路介导缺血性脑保护

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