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Abstract Title:

Curcumin functions as an anti-inflammatory and antioxidant agent on arsenic-induced hepatic and kidney injury by inhibiting MAPKs/NF-κB and activating Nrf2 pathways.

Abstract Source:

Environ Toxicol. 2021 Jul 17. Epub 2021 Jul 17. PMID: 34272803

Abstract Author(s):

Guowei Xu, Yuqin Gu, Nan Yan, Yongfang Li, Lin Sun, Bing Li

Article Affiliation:

Guowei Xu

Abstract:

Chronic arsenic exposure has been associated with various toxic effects, especially to the organs of liver and kidney. As a plant polyphenol, curcumin is the most vital bioactive ingredient of turmeric and has a wide range of pharmacological activities. In the present study, we investigated the potential roles of curcumin against arsenic-induced liver and kidney dysfunctions in mice. Curcumin treatment (200 mg/kg) not only decreased the deposition of arsenic in liver and kidney, but also relieved the hepatic and nephritic biochemical indexes (Glutamic oxaloacetic transaminase [AST], Alanine aminotransferase [ALT], albumin, and creatinine) altered by arsenic at doses of 10 and 25 mg/L via drinkingwater. What's more, curcumin exerted influences on the activities of myeloperoxidase and on the secretion of inflammatory cytokines in liver and kidney tissues. In addition, the levels of mitogen-activated protein kinases (MAPKs) and nuclear factor kappa B (NF-κB) phosphorylation were declining while NRF2-signaling targets were increasing in mice liver and kidney by curcumin administration. In conclusion, our results here suggest that curcumin could exert both anti-inflammatory and antioxidant functions on arsenic-induced hepatic and kidney injury by inhibiting MAPKs/NF-κB and activating Nrf2 pathways cooperatively.

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