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Impact of peroxisome proliferator activated receptor agonist drugs in a model of nephrotoxicity in rats.
Journal of Biochemical and Molecular Toxicology 2023 March 30
Doxorubicin (DOX) is one of the basic anticancer drugs, nonetheless its use is restricted due to noxious side effects. Kidney failure is one of the main side effects that restrict its medical use. The current study assessed the nephroprotective effects of fenofibrate and pioglitazone against the renal injury induced by doxorubicin in rats and illustrated the probable mechanisms underlying these protective effects. For this purpose, Male Sprague-Dawley rats weighing (200-230 g) were allocated into seven groups treated for 15 days as following: control (50% corn oil + 50% DMSO p.o), fenofibrate (100 mg/kg p.o) and pioglitazone (10 mg/kg p.o) as well as four groups of DOX (15 mg/kg i.p on 11th day). DOX groups included DOX alone and DOX with protective drugs fenofibrate, pioglitazone or both of them. As a result of doxorubicin nephrotoxicity; serum creatinine and blood urea nitrogen were remarkably elevated. Moreover, renal glutathione was significantly reduced while tissue lipid peroxidation malondialdehyde, tumor necrosis factor-α, nuclear factor-kappa B p65 (NF-κB p65), interleukin-1β, p38 mitogen activated protein kinase (p38-MAPK) and caspase-3 (Casp-3) were significantly augmented. Treatment with fenofibrate and pioglitazone either alone or in combination markedly attenuated DOX-induced injury by suppression of oxidative stress, inflammation and apoptosis. The above-mentioned biochemical markers were affirmed by histological assessment. In conclusion, fenofibrate, pioglitazone, and their combination possess potential prophylactic effects against doxorubicin-induced renal injury through modulation of p38-MAPK/NF-κB p65 pathway with superiority to the combination.
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