对海马的低强度聚焦超声波刺激通过Notch1信号通路改善了CSDS诱导的神经炎症
Yi Luo1, Kaixuan Luo1, Xiaofan Zhang2
1School of Rehabilitation, Kunming Medical University, Kunming 650500, Yunnan, China.
Journal of affective disorders
|July 2, 2025
概括
低强度聚焦超声波 (LIFU) 治疗改善了小鼠的抑郁和焦虑行为. 这种非侵入性治疗促进了神经发生,并通过抑制Notch1通路来减少神经炎症,为情绪障碍治疗提供了潜力.
科学领域:
- 神经科学是一个神经科学.
- 生物医学工程 生物医学工程
- 精神病学是一个精神病学.
背景情况:
- 目前的抑郁症治疗有其局限性.
- 低强度聚焦超声波 (LIFU) 是一种新兴的抑郁症非侵入性治疗方法.
- 慢性社会失败压力 (CSDS) 是抑郁症的经过验证的动物模型.
研究的目的:
- 研究LIFU对CSDS小鼠抑郁和焦虑类行为的治疗效果.
- 探索LIFU作用的潜在机制,重点关注神经发生和神经炎症.
主要方法:
- 连续七天的LIFU刺激应用到CSDS小鼠的右海马.
- 使用强迫游泳测试和开放场地测试进行行为评估.
- 测量牙状回形 (DG) 中的神经发生和Notch1通路和炎症媒介 (NF-κB,IL-6) 的蛋白质水平.
主要成果:
- 在CSDS小鼠中,LIFU显著改善了行为表现,减少了类似抑郁和焦虑的行为.
- 在总局,LIFU促进了神经发生.
- LIFU降低了Notch1通路组件 (Notch1,Jagged1,Hes1) 和炎症媒介 (NF-κB,IL-6) 的蛋白质水平.
结论:
- 通过抑制Notch1通路,LIFU抑制神经炎症,在抑郁症的小鼠模型中促进神经发生和行为恢复.
- 这些发现为LIFU作为情绪障碍的潜在新疗法提供了临床前证据.
- 这项研究确定了马向的LIFU,神经炎症调节和神经发生之间的机制联系.
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