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高脂肪/高糖饮食和高温/高湿度暴露在实验小鼠模型中加剧了性结肠炎
Pengyan Li1, Guibing Meng1, Ang Li1
1Tianjin Key Laboratory of Therapeutic Substance of Traditional and State Key Laboratory of Component-Based Chinese Medicine, School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
高脂肪,高糖饮食和炎热,潮湿的天气会使小鼠的性结肠炎 (UC) 恶化. 这些因素加剧结肠损伤,炎症和肠道屏障功能障碍,影响新陈代谢.
科学领域:
- 胃肠病学 胃肠病学
- 免疫学 免疫学 免疫学
- 代谢过程中的代谢.
背景情况:
- 性结肠炎 (UC),一种炎症性肠病 (IBD),与高卡路里/脂质摄入量和夏季温度有关.
- 饮食和环境因素可能会影响UC的进展.
研究的目的:
- 在小鼠模型中研究高脂肪/高糖饮食和高温/高湿度暴露对硫酸 (DSS) 诱导的性结肠炎 (UC) 的影响.
- 评估UC症状和潜在机制的恶化.
主要方法:
- 在UC模型中,小鼠使用2.0%的硫酸 (DSS).
- 应用了高脂肪/高糖饮食和高温/高湿度的联合暴露.
- 评估的体重,疾病活动指数 (DAI),组织病理学,血清脂质,二胺氧化酶 (DAO),D-乳酸盐 (D-LA),炎症类细胞因子 (IL-6,IL-17A,IL-1β) 和紧密结合蛋白 (ZO-1).
主要成果:
- 高脂肪/高糖饮食和热/潮湿条件加剧了DSS诱导的UC,导致更严重的结肠损伤.
- 观察到增加的促炎性细胞因子表达 (IL-6,IL-17A,IL-1β) 和受损的肠道屏障 (减少ZO-1,增加DAO/D-LA).
- 葡萄糖和脂质谱中的代谢障碍恶化,与仅用DSS治疗的小鼠不同.
结论:
- 饮食和环境因素显著加剧了UC进展和肠道屏障功能障碍.
- 这项研究为饮食和气候对UC病变的联合影响提供了新的见解.
- 调查结果强调了生活方式和环境考虑在管理UC中的重要性.
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