Evaluation of the renoprotective effect of nano turmeric against toxic dose of copper sulfate: Role of vascular cell adhesion molecule-1, kidney injury molecule-1, and signal transducer and activator of transcription 3 protein expressions.

The aim of this study was to compare the potential renoprotective effects of turmeric (TM) and nano turmeric (NTM) with those of desferrioxamine (DSM) against copper sulfate (CS)-induced toxicity. Rats were administered a toxic dose of CS with TM, NTM, and DSM for 1 week. Next, serum-urea creatinine, uric acid, interleukin (IL)-10, c-reactive protein (CRP), and caspase-3 levels; renal nitric oxide (NO), glutathione (GSH), malondialdehyde (MDA), superoxide dismutase (SOD), vascular cell adhesion molecule-1 (VCAM-1), kidney injury molecule (KIM)-1, signal transducer and activator of transcription 3 protein expression; and nuclear factor (NF)-κB and B-cell lymphoma -2 (Bcl-2) messenger RNA expression levels were estimated. Administration of the investigated antioxidants downregulated the marked increase in urea, creatinine, uric acid, CRP, caspase-3, NO, MDA, VCAM-1, kidney injury molecule (KIM-1), NF-κB, and DNA fragmentation, and increased Bcl-2, IL-10, GSH, and SOD levels induced by CS. The histopathological examination confirmed the effects of the antioxidants on the investigated biochemical parameters. Interestingly, NTM exhibited a superior renoprotective effect, which was comparable with that of DSM. In conclusion, NTM was shown to be a promising candidate against CS-induced toxicity, and several molecular mechanisms were implicated in the CS-induced renotoxicity as well as the treatment effects of NTM.

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