肠道微生物群在T-2毒素诱导的厌食症中的作用
Tingyu Huang1, Aoyun Li1, Shanshan Zhang1
1College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan, China.
Ecotoxicology and environmental safety
|June 19, 2024
概括
通过改变肠道微生物群,增加胃肠道荷尔蒙,神经递质和炎症性细胞因子,T-2毒素导致厌食症. 这些肠道细菌的变化,特别是Faecalibaculum和Allobaculum,与食欲调节有关.
科学领域:
- 毒理学 毒理学 毒理学
- 微生物学 微生物学
- 神经科学是一个神经科学.
背景情况:
- 众所周知,T-2毒素是一种三菌毒素,可降低食欲,但确切的机制尚不清楚.
- 肠道微生物群显著影响宿主食欲调节,这表明与T-2毒素诱导的厌食症存在潜在联系.
研究的目的:
- 研究T-2毒素诱导的厌食症中肠道微生物群和食欲调节因素之间的相互作用.
- 阐明T-2毒素对食欲影响的潜在机制.
主要方法:
- 建立了一个亚急性T-2毒素中毒小鼠模型,使用口服 (1 mg/kg BW) 持续4周.
- 测量了胃肠道激素 (CCK,GIP,GLP-1,PYY),神经递质 (5-HT,SP) 和促炎细胞因子 (IL-1β,IL-6,TNF-α) 的血清水平.
- 分析了肠道微生物群组成,重点关注与食欲相关因素的相关性.
主要成果:
- 在小鼠中,T-2毒素诱导的厌食症伴随着CCK,GIP,GLP-1,PYY,5-HT,SP,IL-1β,IL-6和TNF-α的血清水平增加.
- 暴露于T-2毒素显著改变了肠道微生物群的组成,特别是增加了Faecalibaculum和Allobaculum的丰度.
- 增加了Faecalibaculum和Allobaculum的丰富性显示出与CCK,GLP-1,5-HT,IL-1β,IL-6和TNF-α的正相关性.
结论:
- 肠道微生物群失调,特别是Faecalibaculum和Allobaculum的丰富,在T-2毒素诱导的厌食症中起作用.
- 肠道微生物群的变化可能会促进胃肠道激素,神经递质和促炎细胞因子的上调,从而导致厌食症.
- 这项研究强调了肠道微生物群作为缓解T-2毒素诱导的食欲丧失的潜在治疗目标.
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