在糖尿病中,SCFA对炎和肠道微生物群改变的后生物潜力
Dipeeka K Mandaliya1, Sweta Patel, Sriram Seshadri
1Institute of Science, Nirma University, Ahmedabad, Gujarat, India.
Journal of biosciences
|July 11, 2025
概括
短链脂肪酸 (SCFA),如酸,酸和丁酸对肠道健康有影响. 将酸与酸盐或丁酸盐结合使用,显著改善了小鼠的糖尿病特征和肝脏代谢.
科学领域:
- 微生物学 微生物学
- 代谢科学 代谢科学
- 免疫学 免疫学 免疫学
背景情况:
- 肠道微生物群发酵产生短链脂肪酸 (SCFA),对宿主代谢至关重要.
- 丁酸盐因其健康益处而得到认可,但单独或结合酸盐的影响不太清楚.
- SCFA 与宿主受体相互作用,影响新陈代谢和炎症途径.
研究的目的:
- 研究酸与酸盐或丁酸盐对糖尿病,肝脏代谢和炎症的联合作用.
- 探索SCFA受体和肠道微生物群调节在这些过程中的作用.
- 评估SCFA组合对关键代谢调节剂和微生物组成的影响.
主要方法:
- 在使用高脂肪饮食 (HFD) 的小鼠中诱导糖尿病4个月.
- 小鼠接受了SCFA (酸,乙酸,丁酸或组合) 的口服治疗1个月.
- 分析包括评估糖尿病特征,肝脏基因表达 (LXR,SREBP1c,GLUT4,PPARα),SCFA受体表达 (GPR41,GPR43,GPR109) 和肠道微生物群组成.
主要成果:
- 酸和酸盐或丁酸盐的组合显示,糖尿病特征的改善比单个SCFA更显著.
- 这些组合有效调节了关键的胰岛素途径分子,并增强了肝脏中SCFA受体表达.
- SCFA治疗增加了微生物的丰富性,并恢复了有益的细菌,包括乳酸盐生产者,如Lactobacillus和Akkermansia.
结论:
- 当与酸盐或丁酸盐相结合时, propionate 对肝脏代谢和炎症表现出显著的有益影响.
- 这些效应通过SCFA受体的调节和肠道微生物群组成的改变来调节.
- 这些发现强调了SCFA组合在治疗饮食引起的代谢障碍方面的治疗潜力.
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