中部杏仁核中的GABAergic神经元有助于编排类似焦虑的行为和呼吸模式
Xiaoyi Wang1, Shangyu Bi1, Ziteng Yue1
1Department of Neurobiology, Hebei Medical University, Shijiazhuang, China.
Nature communications
|April 14, 2025
概括
研究人员发现GABAergic中央杏仁体 (CeA) 神经元驱动焦虑类行为和改变呼吸. 针对这些CeA神经元,特别是通过CeA-PVT和CeA-LPBN电路,会影响焦虑和呼吸频率 (RF).
科学领域:
- 神经科学是一个神经科学.
- 行为科学 行为科学
- 呼吸系统生理学 呼吸系统生理学
背景情况:
- 焦虑包括对情绪的呼吸反应受到干扰.
- 中枢桃体 (CeA) 处理情绪变化,但其在焦虑行为和呼吸中的作用尚不清楚.
研究的目的:
- 调查CeA在焦虑类行为和呼吸模式中的作用.
- 阐明参与CeA介导的焦虑和呼吸的神经回路.
主要方法:
- 使用小鼠模型研究急性克制压力 (ARS).
- 操纵GABAergic CeA神经元活动 (沉默和刺激).
- 使用CeA-thalamic paraventricular nucleus (PVT) 和CeA-lateral parabrachial nucleus (LPBN) 电路绘制的神经通路的地图. 通过CeA-thalamic paraventricular nucleus (PVT) 和CeA-lateral parabrachial nucleus (LPBN) 电路绘制的神经通路的地图. 通过CeA-thalamic paraventricular nucleus (PVT) 和CeA-lateral parabrachial nucleus (LPBN) 电路绘制的神经通路的地图.
主要成果:
- ARS增加了焦虑行为和呼吸频率 (RF).
- 沉默GABAergicCeA神经元可以减少ARS诱导的焦虑和RF.
- 刺激GABAergicCeA神经元诱导焦虑和通过CeA-PVT增加RF,但仅通过CeA-LPBN增加RF.
结论:
- GABAergic CeA神经元对于编排类似焦虑的行为至关重要.
- 特定的CeA电路 (CeA-PVT和CeA-LPBN) 不同地调节焦虑和呼吸模式.
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