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The Effect of Type 2 Resistant Starch and Indole-3-Propionic Acid on Ameliorating High-Fat-Diet-Induced Hepatic Steatosis and Gut Dysbiosis

文献类型： 外文期刊

作者： Yang, Min 1 ; Cai, Wanhao 1 ; Li, Xinxin 3 ; Deng, Yixuan 5 ; Li, Jinjun 3 ; Wang, Xin 3 ; Zhu, Liying 3 ; Wang, Chong 1 ; Li, Xiaoqiong 3 ;

作者机构： 1.Zhejiang Agr & Forestry Univ, Coll Anim Sci & Technol, Key Lab Appl Technol Green Ecohlth Anim Husb Zheji, Hangzhou 311300, Peoples R China

2.Zhejiang Agr & Forestry Univ, Coll Vet Med, Hangzhou 311300, Peoples R China

3.Zhejiang Acad Agr Sci, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou 310021, Peoples R China

4.Zhejiang Acad Agr Sci, Inst Food Sci, Hangzhou 310021, Peoples R China

5.Wenzhou Med Univ, Sch Med 2, Wenzhou 325035, Peoples R China

关键词： obesity; type 2 resistant starch; indole-3-propionic acid; high-fat diet; hepatic steatosis; gut dysbiosis

期刊名称：FOODS （ 影响因子：4.7； 五年影响因子：5.1 ）

ISSN：

年卷期： 2024 年 13 卷 11 期

页码：

收录情况： SCI

摘要： Owing to the interplay of genetic and environmental factors, obesity has emerged as a significant global public health concern. To gain enhanced control over obesity, we examined the effects of type 2 resistant starch (RS2) and its promoted microbial-derived metabolite, indole-3-propionic acid (IPA), on hepatic steatosis, antioxidant activity, and gut microbiota in obese mice. Neither RS2 nor low-dose IPA (20 mg kg-1) exhibited a reduction in body weight or improved glucose and lipid metabolism in post-obesity state mice continuously fed the high-fat diet (HFD). However, both interventions improved hepatic steatosis, with RS2 being more effective in all measured parameters, potentially due to changes in gut microbiota and metabolites not solely attributed to IPA. LC-MS/MS analysis revealed increased serum IPA levels in both RS2 and IPA groups, which positively correlated with Bifidobacterium and Clostridium. Moreover, RS2 exhibited a more significant restoration of gut dysbiosis by promoting the abundance of health-promoting bacteria including Faecalibaculum and Bifidobacterium. These findings suggest that the regulatory role of RS2 on tryptophan metabolism only partially explains its prebiotic activity. Future studies should consider increasing the dose of IPA and combining RS2 and IPA to explore their potential interventions in obesity.

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