胃叶多糖通过肠道微生物群调节和Keap1-Nrf2/BDNF-TrkB通路激活来缓解抑郁症
Min Wen1, Mengmeng Liu2, Yaoyuan Zhang3
1Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China; Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China.
胃叶多糖 (GEP) 通过改善肠道微生物群和调节Keap1-Nrf2/BDNF-TrkB通路,显示抗抑郁作用. 这项研究澄清了GEP.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 微生物学 微生物学
背景情况:
- 氧化应激和肠道失调与抑郁症有关.
- 胃叶多糖 (Gastrodia elata polysaccharide,简称GEP) 显示出神经保护和抗抑郁药的潜力.
- 需要阐明GEP神经保护的精确机制.
研究的目的:
- 为了研究GEP在抑郁症小鼠模型中的抗抑郁作用.
- 探索GEP对肠道微生物群组成的影响.
- 阐明GEP在调节关键细胞信号通路中的作用.
主要方法:
- 由慢性不可预测的轻度压力 (CUMS) 和脂多糖 (LPS) 诱导的抑郁模式.
- 用于肠道微生物群分析的16S rRNA测序.
- 西部涂抹和qRT-PCR用于信号通路分析 (Keap1-Nrf2/BDNF-TrkB).
- 在体外LPS诱导的PC12细胞模型.
主要成果:
- 在CUMS和LPS诱导的小鼠中,GEP预治疗缓解了抑郁行为.
- GEP调节了肠道微生物群,降低了Firmicutes/Bacteroidota比率并增加了多样性.
- 在体内和体外,GEP调节了Keap1-Nrf2/BDNF-TrkB信号通路.
结论:
- GEP 显示出显著的抗抑郁作用.
- GEP的机制包括调节肠道微生物群和Keap1-Nrf2/BDNF-TrkB通路.
- GEP对治疗抑郁症的治疗应用具有前景.
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