素通过减少慢性低度炎症来降低肥胖症
Jiaxin Yang1, Wanyi Li1, Yuanwei Wang1
1College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China.
International journal of molecular sciences
|August 29, 2024
概括
中发现的一种化合物素通过减少慢性低度炎症 (CLGI) 来减少肥胖. 它降低脂聚糖 (LPS) 水平,改善肠道屏障功能,减少炎症标志物,提供潜在的抗肥胖策略.
科学领域:
- 代谢和代谢疾病的代谢
- 免疫学 免疫学 免疫学
- 胃肠病学 胃肠病学
背景情况:
- 慢性低度炎症 (CLGI) 是肥胖病原发生的一个关键机制.
- 来自格拉姆阴性细菌的脂聚糖 (LPS) 是CLGI的驱动力.
- 素已经显示出降低LPS产生细菌的潜力.
研究的目的:
- 为了研究素对CLGI和肥胖的影响,使用TRPV1-淘汰赛小鼠和Caco-2细胞.
- 阐明素调解减肥的机制.
- 评估素对肠道屏障功能和炎症的影响.
主要方法:
- 使用了TRPV1-淘汰赛 (TRPV1-/-) C57BL/6J小鼠和Caco-2肠上皮细胞.
- 在高脂肪饮食中的小鼠体内注射素.
- 测量体重,食物摄入量,血脂,血糖,LPS水平,TLR4,TNF-α,IL-6和紧结蛋白 (ZO-1,奥克卢丁).
主要成果:
- 素显著降低了高脂肪饮食养小鼠的体重,食物摄入量,血脂和葡萄糖.
- 素通过改变细菌丰富度和减少TLR4,TNF-α和IL-6表达来降低肠道LPS水平.
- 素提高了ZO-1和奥克卢丁的调节,增强了紧密结合的完整性,跨内皮电阻,并恢复了肠道屏障功能.
结论:
- 素通过减少LPS和改善肠道屏障功能来减轻CLGI而表现出抗肥胖作用.
- 该机制涉及对TLR4介导的炎症进行下调,并对紧结蛋白ZO-1和奥克卢丁进行上调.
- 素修复肠道屏障功能的能力为肥胖和相关炎症病症提供了一个新的治疗途径.
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