棘点通过改善肠道屏障功能和调节肠道微生物群来缓解小鼠DSS诱导的大肠炎
Tao Li1,2, Junbo Chen3, Yuncong Xu3
1Shandong Engineering Research Center for Innovation and Application of General Technology for Separation of Natural Products, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China.
Journal of agricultural and food chemistry
|February 26, 2025
概括
棘点 (HP) 通过改善肠道健康和减少炎症,显著减少了小鼠的性结肠炎 (UC) 症状. 这种食纤维充当益生菌,调节肠道微生物群以缓解结肠炎.
科学领域:
- 胃肠道学和营养学
- 微生物组研究 微生物组研究
- 免疫学 免疫学 免疫学
背景情况:
- 性结肠炎 (UC) 是一种慢性炎症性肠病,治疗点不清楚.
- 黑中的可溶性食纤维 - - pectin具有多种生物活性,但其在UC中的作用尚不清楚.
研究的目的:
- 在小鼠模型中,研究黄杉 (HP) 对硫酸 (DSS) 诱导的性结肠炎 (UC) 的治疗作用.
- 阐明HP作用的潜在机制,重点关注炎症,肠道屏障功能和肠道微生物群调节.
主要方法:
- 在小鼠中使用DSS诱导UC,然后用HP进行治疗.
- 评估临床结肠炎得分,体重,结肠长度和结肠损伤.
- 测量血清炎症因子 (TNF-α,IL-1β,IL-6) 和结肠巨细胞透 (F4/80).
- 对肠道屏障蛋白 (ZO-1,ocludin),肠道微生物群组成和短链脂肪酸 (SCFA) 水平的分析.
- 便微生物群移植 (FMT) 从HP治疗的供体到UC小鼠.
主要成果:
- 惠普治疗显著缓解了UC症状,增加了体重和结肠长度,同时减少了结肠损伤.
- 通过降低血清炎症性细胞因子和结肠巨细胞透,HP抑制了全身炎症.
- 通过增加ZO-1和奥克卢丁的表达,HP增强了肠道屏障功能.
- 惠普改变了肠道微生物群的组成,减少了有害的属,增加了有益的细菌,导致SCFA度更高.
- 使用HP衍生微生物群的FMT在接受者小鼠中改善了UC,证实了微生物群依赖的机制.
结论:
- 棘点有效地改善了小鼠的DSS诱导的性结肠炎.
- 惠普通过减少炎症,加强肠道屏障,调节肠道微生物群的组成和功能来发挥其保护作用.
- 惠普显示出作为管理肠道健康和治疗UC的益生菌剂的潜力.
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