EPISODE · May 14, 2026 · 21 MIN
968-局灶性白质损伤驱动神经回路再生机制
from 聊聊Sci
本项研究揭示了局灶性白质病变是导致灰质炎症、突触丢失及神经元活动异常的直接驱动因素，而非此前认为的继发性结果。通过对大鼠和小鼠神经回路的观察发现，白质脱髓鞘会诱发远端灰质出现短暂的小胶质细胞增生和突触吞噬，这一过程实际上是髓鞘再生所必需的生理反馈。研究利用空间转录组学和活体成像技术证明，这种灰质响应由神经元代谢变化触发，并随髓鞘修复而消失。如果白质再生失败，灰质炎症则会转为慢性状态，这为理解多发性硬化症等神经退行性疾病的病理机制提供了全新视角。实验进一步证实，抑制灰质中的小胶质细胞反应会直接阻碍白质的修复进程，强调了灰质与白质之间协同作用对神经系统再生的重要性。References:de Faria Jr O, Vagionitis S, Lopez-Lopez A, et al. Focal white matter lesions drive grey matter inflammation and synapse loss[J]. Nature, 2026: 1-11.前往小宇宙评论区与主播互动
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968-局灶性白质损伤驱动神经回路再生机制
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