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在CFA诱导的小鼠炎症性疼痛后,脊柱背角神经元发生变化

Hao Zheng¹, Xiaoyue Sun¹, Qingquan Yu²

¹Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, 100700 Beijing, China.

Journal of integrative neuroscience

|January 8, 2026

概括

炎症性疼痛会改变脊柱背角神经元的活动和分布. 宽动态范围和低值机械受体神经元显示增加了发射和转移到表面层.

科学领域:

神经科学是一个神经科学.
疼痛研究疼痛研究
脊髓生理学脊髓生理学

背景情况:

脊柱背角 (SDH) 对于处理疼痛信号至关重要.
了解在炎症性疼痛期间SDH中神经元刺激性如何发生变化是必不可少的.

研究的目的:

为了研究在炎症性疼痛期间SDH神经元活动和分布的时间变化.
描述不同神经元亚型在疼痛处理中的作用.

主要方法:

在动物模型中使用完整的弗洛恩德辅助剂 (CFA) 诱导炎症性疼痛.
通过CatWalk步行分析,承重测试和·弗雷伊丝线来评估疼痛行为.
神经元激活 (c-Fos) 和体内多电极记录被用来绘制SDH活动的地图.

主要成果:

自发的疼痛行为和机械过敏性在CFA后的第一周内达到顶峰.
在CFA诱导后的早期,在表面SDH层层中观察到c-Fos表达的增加.
自发和唤起的神经元发射率都增加了,大动态范围 (WDR) 和低值机械受体 (LTM) 神经元显示出显著的变化.

结论:

周围炎症导致SDH神经元活动的快速变化.
在炎症性疼痛期间,WDR和LTM神经元表现出改变的刺激性和向表面膜转移.
这些发现为持续性疼痛的神经机制提供了洞察力.

关键词:

电生理学现象电生理学现象多通道电极是多通道电极.无感觉性疼痛是一种疼痛感.脊髓背角脊髓背角

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