1.p-Coumaric acid ameliorates ethanol-induced kidney injury by inhibiting inflammatory cytokine production and NF-κB signaling in rats
Sabitha RAMAKRISHNAN ; Nishi KUMARI ; Gunasekaran Prasanna VINOTH ; Annamalai GOVINDHAN ; Agilan BALUPILLAI ; Ganeshan MATHAN
Asian Pacific Journal of Tropical Biomedicine 2019;9(5):188-195
Objective: To examine the effects of p-coumaric acid on ethanol-induced kidney injury in Swiss Wistar rats. Methods: Ethanol (25% v/v) was used to induce nephrotoxicity in rats. p-Coumaric acid was orally administered at 50, 100, or 200 mg/kg body weight. The levels of oxidative parameters were determined; pro-inflammatory biomarkers were analyzed by Western blotting and apoptotic protein was analyzed by immunohistochemistry. Results: Ethanol treated rats showed decreased levels of antioxidants and aberrant production of pro-inflammatory cytokines (IL-6, IL1β, TNF-α), NF-κB activation and imbalance of pro-and anti-apoptotic proteins (Bcl-2, Bax, caspase 3). Meanwhile, p-coumaric acid restored antioxidant levels and decreased the levels of inflammatory cytokines, NF-κB, and pro-apoptotic proteins and increased Bcl-2 expression. Conclusions: p-Coumaric acid ameliorates ethanol-induced kidney injury by restoring antioxidant production and suppressing cellular apoptosis and inhibiting NF-κB expression. p-Coumaric acid should be further investigated as a promising candidate for ethanol-induced kidney toxicity.

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