Autoclaving-treated germinated brown rice relieves hyperlipidemia by modulating gut microbiota in humans

文献类型： 外文期刊

第一作者： Ren, Chuanying

作者： Ren, Chuanying;Hong, Bin;Zhang, Shan;Yuan, Di;Feng, Junran;Shan, Shan;Zhang, Jingyi;Guan, Lijun;Zhu, Ling;Lu, Shuwen;Ren, Chuanying;Ren, Chuanying

作者机构：

关键词： germinated brown rice; hyperlipidemia; gut microbiota; nutrition; functional food

期刊名称：FRONTIERS IN NUTRITION （ 影响因子：5.0； 五年影响因子：5.7 ）

ISSN： 2296-861X

年卷期： 2024 年 11 卷

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收录情况： SCI

摘要： Introduction Germinated brown rice is a functional food with a promising potential for alleviating metabolic diseases. This study aimed to explore the hypolipidemic effects of autoclaving-treated germinated brown rice (AGBR) and the underlying mechanisms involving gut microbiota.Methods Dietary intervention with AGBR or polished rice (PR) was implemented in patients with hyperlipidemia for 3 months, and blood lipids were analyzed. Nutritional characteristics of AGBR and PR were measured and compared. Additionally, 16S rDNA sequencing was performed to reveal the differences in gut microbiota between the AGBR and PR groups.Results AGBR relieves hyperlipidemia in patients, as evidenced by reduced levels of triglycerides, total cholesterol, low-density lipoprotein cholesterol, and apolipoprotein-B, and elevated levels of high-density lipoprotein cholesterol and apolipoprotein-A1. In terms of nutrition, AGBR had significantly higher concentrations of free amino acids (10/16 species), gamma-aminobutyric acid, resistant starch, soluble dietary fiber, and flavonoids (11/13 species) than PR. In addition, higher microbial abundance, diversity, and uniformity were observed in the AGBR group than in the PR group. At the phylum level, AGBR reduced Firmicutes, Proteobacteria, Desulfobacterota, and Synergistota, and elevated Bacteroidota and Verrucomicrobiota. At the genus level, AGBR elevated Bacteroides, Faecalibacterium, Dialister, Prevotella, and Bifidobacterium, and reduced Escherichia-Shigella, Blautia, Romboutsia, and Turicibacter.Discussion AGBR contributes to the remission of hyperlipidemia by modulating the gut microbiota.

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