Wheat Alkylresorcinols Modulate Glucose Homeostasis through Improving GLP-1 Secretion in High-Fat-Diet-Induced Obese Mice

被引:8
|
作者
Liu, Jie [1 ,2 ]
Zhang, Dandan [1 ]
Yang, Zihui [1 ]
Hao, Yiming [1 ]
Wang, Zongwei [1 ]
Wang, Jing [1 ,2 ]
Wang, Ziyuan [1 ,2 ]
机构
[1] Beijing Technol & Business Univ, Natl Ctr Technol Innovat Grain Ind Comprehens Util, Beijing 100048, Peoples R China
[2] Beijing Technol & Business Univ, Key Lab Special Food Supervis Technol State Market, Beijing 100048, Peoples R China
基金
中国国家自然科学基金;
关键词
wheat alkylresorcinols; GLP-1; apoptosis; gut microbiota; short-chain fatty acids; CELL-LINE; GUT; APOPTOSIS; TYPE-2; ACIDS; SENSITIVITY; MICROBIOTA; PATHWAY; FIBER;
D O I
10.1021/acs.jafc.3c04664
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
Wheat alkylresorcinols (ARs) consumption has been evidenced to improve obesity and its associated insulin resistance. However, the effect of ARs on glucagon-like peptide 1 (GLP-1) secretion and the underlying mechanism of action are still unclear. In this study, C57BL/6J mice were fed low-fat diet (LFD), high-fat diet (HFD), and HFD supplemented with 0.4% (w/w) ARs separately for 9 weeks. The results showed that ARs intervention significantly improved glucose homeostasis and restored the serum level of GLP-1 compared with the HFD control group. Moreover, ARs treatment alleviated HFD-induced ileal epithelium damage according to TUNEL staining, immunofluorescence, and transmission electron microscopy observation. The alleviative effect was further verified by apoptosis analysis and mitochondrial function evaluation. Furthermore, palmitic acid (PA) was administered to the intestinal secretin tumor cell line (STC-1) to clarify the protective effect of ARs on GLP-1 secretion in vitro. In consistence with the results of animal studies, ARs treatment could significantly improve GLP-1 secretion in STC-1 cells compared with PA treatment alone in a dose-dependent manner, accompanied by a reduction in apoptosis and mitochondrial dysfunction. In addition, ARs treatment notably enhanced the abundance of SCFA (short-chain fatty acid)-producing bacteria, such as Bacteroides, Bifidobacterium, and Akkermansia. The increased levels of intestinal SCFAs, such as acetic acid, propionic acid, and butyric acid, improved the expression of short-chain fatty acid receptors (FFAR3) and glucagon-like peptide-1 receptor (GLP-1R), enhancing the secretion of the intestinal hormones GLP-1. Thus, this study provides potential clinical implications of whole wheat as a dietary strategy to improve glucose homeostasis for obese populations.
引用
收藏
页码:16125 / 16136
页数:12
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