Theabrownins prevents DSS-induced colitis via modulating PPAR- and NF-B signaling pathways in mice
JOURNAL OF FUNCTIONAL FOODS(2023)
Abstract
Theabrownins (TB), a signature phenolic-derivative via complex microbial fermentation, has multiple healthpromoting effects, including antioxidant, anti-obesity and hypoglycemic effects. However, the effect of TB on colitis remains unclear. In this study, we investigated the effect of TB on DSS-induced colitis in mice. TB treatment significantly relieved weight loss (p < 0.001), retained a longer colon length (p < 0.01), ameliorated severe crypt damage. Furthermore, TB downregulated the protein of inflammatory cytokines (IL-1 beta, IL-6 and TNF-alpha (p < 0.01)) in colitis mice. In addition, TB administration could suppress macrophage aggregation into colon by reducing expression levels of CD 68 + and CD 11b. TB effectively prevented DSS-induced colitis might be attributed to up-regulation of PPAR-gamma expression and down-regulation of p-NF-kappa B expression on the protein level. Overall, this study suggested that TB attenuated inflammation and colitis progression via modulating PPAR-gamma and NF-kappa B signaling pathways, indicating its potential as a functional food for anti-inflammatory.
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Key words
Theabrownins (TB), Colitis, Anti-inflammatory
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