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Role of Dietary Defatted Rice Bran in the Modulation of Gut Microbiota in AOM/DSS-Induced Colitis-Associated Colorectal Cancer Rat Model
Abstract
Defatted rice bran (DRB) is a by-product of rice bran derived after the oil extraction. DRB contains several bioactive compounds, including dietary fiber and phytochemicals. The supplementation with DRB manifests chemopreventive effects in terms of anti-chronic inflammation, anti-cell proliferation, and anti-tumorigenesis in the azoxymethane (AOM) and dextran sodium sulfate (DSS)-induced colitis-associated colorectal cancer (CRC) model in rats. However, little is known about its effect on gut microbiota. Herein, we investigated the effect of DRB on gut microbiota and short chain fatty acid (SCFA) production, colonic goblet cell loss, and mucus layer thickness in the AOM/DSS-induced colitis-associated CRC rat model. The results suggested that DRB enhanced the production of beneficial bacteria (Alloprevotella, Prevotellaceae UCG-001, Ruminococcus, Roseburia, Butyricicoccus) and lessened the production of harmful bacteria (Turicibacter, Clostridium sensu stricto 1, Escherichia–Shigella, Citrobacter) present in colonic feces, mucosa, and tumors. In addition, DRB also assisted the cecal SCFAs (acetate, propionate, butyrate) production. Furthermore, DRB restored goblet cell loss and improved the thickness of the mucus layer in colonic tissue. These findings suggested that DRB could be used as a prebiotic supplement to modulate gut microbiota dysbiosis, which decreases the risks of CRC, therefore encouraging further research on the utilization of DRB in various nutritional health products to promote the health-beneficial bacteria in the colon.
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“Cap used alone increased the levels of Turicibacter, Rikenella, Enterorhabdus, and Odoribacter, which are associated with intestinal inflammation and dysbiosis45–49.”
From Combining gut microbiota modulation and chemotherapy by capecitabine-loaded prebiotic nanoparticle improves colorectal cancer therapy (2023) · cites this paper as [48]
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Cited by
Sorted by citations
Lang, T., Zhu, R., Zhu, X., Yan, W., Li, Y., Zhai, Y., Wu, T., Huang, X., Yin, Q., & Li, Y. (2023) · Nature Communications · doi:10.1038/s41467-023-40439-y · Cited by 133
Metadata
- Authors
- Tajasuwan, L., Kettawan, A., Rungruang, T., Wunjuntuk, K., & Prombutara, P.
- Venue
- Nutrients
- Publisher
- MDPI AG
- Published
- 2023-03-22
- Volume
- 15
- Issue
- 6
- Pages
- 1528
- ISSN
- 2072-6643
- PMC
- PMC10052090
- Cited by
- 49
- References
- 6
- Language
- en
- Funders
- Thailand Research Fund (TRF) and the Researchers for Industries (RRI) Scheme (PHD62I0006, PRP6405030310)
- Thai Ruam Jai Vegetable Oil Co., Ltd. (Phra Nakhon Si Ayutthaya, Thailand) (PHD62I0006, PRP6405030310)
- Agricultural Research Development Agency (Public Organization) or “ARDA” (PHD62I0006, PRP6405030310)
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- Tajasuwan, L., Kettawan, A., Rungruang, T., Wunjuntuk, K., & Prombutara, P. (2023). Role of Dietary Defatted Rice Bran in the Modulation of Gut Microbiota in AOM/DSS-Induced Colitis-Associated Colorectal Cancer Rat Model. Nutrients. https://doi.org/10.3390/nu15061528