乌龙茶通过调节自闭症小鼠模型中的微生物群-肠-大脑轴来减轻神经炎症
Peng Zheng1, Hongbo Zhao1, Xingliang Zhang2
1College of Horticulture, South China Agricultural University, Guangzhou, China.
Frontiers in nutrition
|September 26, 2025
概括
乌龙茶 (OT) 治疗改善了自闭症行为,并通过重新平衡肠道细菌和抑制TLR-4通路来减少大鼠模型中的神经炎症. 这些发现表明OTOT.
科学领域:
- 神经科学是一个神经科学.
- 微生物学 微生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 自闭症谱系障碍 (ASD) 是一种神经发育障碍,治疗选择有限.
- 肠道微生物群的调节障碍越来越多地与ASD病原发生有关.
- 乌龙茶 (OT) 具有神经保护性,但其在ASD中的作用尚未被探索.
研究的目的:
- 为了研究乌龙茶 (OT) 是否可以降低酸 (VPA) 诱导的自闭症大鼠模型中的神经炎症.
- 探索微生物群-肠-大脑轴和TLR-4/IκB-α/NF-κB信号通路在OT对ASD影响中的作用.
主要方法:
- 使用产前VPA暴露建立了一个ASD大鼠模型.
- 对接受VPA治疗的老鼠给予不同剂量的OT,并评估行为,神经病理和肠道微生物群的变化.
- 分析了炎症标志物,肠道和血脑屏障的完整性,以及TLR-4通路的激活;微生物群的枯竭被用来确认依赖性.
主要成果:
- 在接受VPA治疗的老鼠中,OT显著改善了类似ASD的行为,并减少了皮质神经元损失.
- OT恢复了肠道微生物群平衡,降低了炎症标志物 (LPS,IL-6,TNF-α),并增强了肠道和血脑屏障的完整性.
- OT抑制了TLR-4/IκB-α/NF-κB通路激活和神经炎症,由于微生物群的枯竭,效应被消除了.
结论:
- 在VPA诱导的老鼠模型中,乌龙茶减弱了类似ASD的表型和神经炎症.
- OT通过重新平衡肠道微生物群,恢复屏障完整性,并抑制神经元TLR-4信号通路而起作用.
- OT显示出作为ASD的微生物向治疗策略的潜力.
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