Chlorogenic acid (CGA) is a polyphenol substance contained in many plants, which has good antioxidant activity. This experiment aimed to explore the protective effects of CGA on hydrogen peroxide (HO)-induced inflammatory response, apoptosis, and antioxidant capacity of bovine intestinal epithelial cells (BIECs-21) under oxidative stress and its mechanism. The results showed that compared with cells treated with HO alone, CGA pretreatment could improve the viability of BIECs-21. Importantly, Chlorogenic acid pretreatment significantly reduced the formation of malondialdehyde (MDA), lowered reactive oxygen species (ROS) levels, and enhanced the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-PX) (P<0.05). In addition, CGA can also improve the intestinal barrier by increasing the abundance of tight junction proteins claudin-1 and occludin. Meanwhile, CGA can reduce the gene expression levels of pro-inflammatory factors Interleukin-6 (IL-6) and Interleukin-8 (IL-8), increase the expression of anti-inflammatory factor Interleukin-10 (IL-10), promote the expression of the nuclear factor-related factor 2 (Nrf2) signaling pathway, enhance cell antioxidant capacity, and inhibit Nuclear Factor Kappa B (NF-κB) the activation of the signaling pathway reducing the inflammatory response, thereby alleviating inflammation and oxidative stress damage.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11422687PMC
http://dx.doi.org/10.1292/jvms.24-0148DOI Listing

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