The Alternate Consumption of Quercetin and Alliin in the Traditional Asian Diet Reshaped Microbiota and Altered Gene Expression of Colonic Epithelial Cells in Rats
2019
Yu, Juntong | Guo, Hui | Xie, Jinli | Luo, Jianming | Li, Yuetong | Liu, Liu | Ou, Shiyi | Zhang, Guangwen | Peng, Xichun
The diet of traditional Asian is similar to the Mediterranean that was considered as a healthy dietary pattern. The report was scarce on whether different plant‐derived components with similar anti‐oxidative and anti‐inflammatory function such as quercetin and alliin in traditional Asian diet consumed in an alternate style cooperatively affect health including the growth of host and the status of the gut microbiota and colonic epithelial immunity. In the present study, the effects of alternate consumption of quercetin and alliin on host health judging by the profile of gut microbiota and gene expression of colonic epithelial cells were investigated with the Illumina MiSeq sequencing (16S rRNA genes) and Illumina HiSeq (RNA‐seq) technique, respectively. The results showed that the alternate consumption significantly increased the rat body weight and reshaped the gut microbiota composition. At the phylum level, it significantly increased the relative abundance of fecal Firmicutes and Cyanobacteria but decreased that of Bacteroidetes (P < 0.05) and increased the relative abundance of Candidatus Arthromitus, Lactococcus, Geobacillus, and Ruminococcus at the genus level that benefits the host's health. The alternate consumption of quercetin and alliin also altered 13 genes expression involved in the KEGG pathways of complement and coagulation cascades and hematopoietic cell lineage to improve the gut immunity. Therefore, the alternate consumption of quercetin and alliin in traditional Asian diet can contribute beneficial metabolic effects by optimizing gut microbiota and altering the immunologic function of colonic epithelial cells, resulting in its potential to improve the sub‐health status.
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