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Ai X, Wu C, Yin T, Zhur O, Liu C, Yan X, Yi C, Liu D, Xiao L, Li W, Xie B, He H. Antidiabetic Function of Lactobacillus fermentum MF423-Fermented Rice Bran and Its Effect on Gut Microbiota Structure in Type 2 Diabetic Mice. Front Microbiol 2021; 12:682290. [PMID: 34248898 PMCID: PMC8266379 DOI: 10.3389/fmicb.2021.682290] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 05/10/2021] [Indexed: 01/10/2023] Open
Abstract
Rice bran is an industrial byproduct that exerts several bioactivities despite its limited bioavailability. In this study, rice bran fermented with Lactobacillus fermentum MF423 (FLRB) had enhanced antidiabetic effects both in vitro and in vivo. FLRB could increase glucose consumption and decrease lipid accumulation in insulin resistant HepG2 cells. Eight weeks of FLRB treatment significantly reduced the levels of blood glucose and lipids and elevated antioxidant activity in type 2 diabetic mellitus (T2DM) mice. H&E staining revealed alleviation of overt lesions in the livers of FLRB-treated mice. Moreover, high-throughput sequencing showed notable variation in the composition of gut microbiota in FLRB-treated mice, especially for short-chain fatty acids (SCFAs)-producing bacteria such as Dubosiella and Lactobacillus. In conclusion, our results suggested that rice bran fermentation products can modulate the intestinal microbiota and improve T2DM-related biochemical abnormalities, so they can be applied as potential probiotics or dietary supplements.
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Affiliation(s)
- Xiaojuan Ai
- School of Life Sciences, Central South University, Changsha, China
| | - Cuiling Wu
- Department of Biochemistry, Changzhi Medical College, Changzhi, China
| | - Tingting Yin
- School of Life Sciences, Central South University, Changsha, China
| | - Olena Zhur
- School of Life Sciences, Central South University, Changsha, China
| | - Congling Liu
- School of Life Sciences, Central South University, Changsha, China
| | - Xiaotao Yan
- School of Life Sciences, Central South University, Changsha, China
| | - CuiPing Yi
- School of Chemistry and Biology Engineering, Changsha University of Science and Technology, Changsha, China
| | - Dan Liu
- Department of Biochemistry and Molecular Biology, School of Preclinical Medicine, Guangxi Medical University, Nanning, China
| | - Linhu Xiao
- School of Life Sciences, Central South University, Changsha, China
| | - Wenkai Li
- School of Life Sciences, Central South University, Changsha, China
| | - Binbin Xie
- Microbial Technology Institute and State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Hailun He
- School of Life Sciences, Central South University, Changsha, China
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