Article ID Journal Published Year Pages File Type
5832702 International Immunopharmacology 2014 5 Pages PDF
Abstract

•Ellagic acid has a protective effect on LPS/GalN-induced liver injury.•Ellagic acid inhibits LPS/GalN-induced NF-κB activation.•Ellagic acid induces the expression of Nrf2 and heme oxygenase-1.

Ellagic acid, a natural polyphenol found in certain fruits, nuts and vegetables, has been reported to have anti-inflammatory, anti-tumor, and antioxidant activities. However, the effects of ellagic acid on acute hepatic injury have not been reported. In the present study, we investigated the effects of ellagic acid on Lipopolysaccharide/d-galactosamine-induced acute hepatic injury in mice. The results showed that LPS/GalN increased hepatic malondialdehyde (MDA) content, TNF-α level, serum ALT and AST levels and TNF-α level. However, these changes were attenuated by ellagic acid. Western blot analysis showed that ellagic acid inhibited LPS/GalN-induced NF-κB activation. Furthermore, ellagic acid induced the expression of Nrf2 and heme oxygenase-1. In conclusion, our results showed that ellagic acid protected against LPS/GalN-induced liver injury by enhancing the antioxidative defense system and reducing inflammatory response.

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Life Sciences Immunology and Microbiology Immunology
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