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  • Title: Reversal of experimental myoglobinuric acute renal failure in rats by quercetin, a bioflavonoid.
    Author: Chander V, Singh D, Chopra K.
    Journal: Pharmacology; 2005 Jan; 73(1):49-56. PubMed ID: 15452363.
    Abstract:
    The occurrence of acute renal failure (ARF) following rhabdomyolysis has been put at between 10 and 40% of cases, and accounts for between 3 and 15% of all cases of ARF. Reactive oxygen intermediates have been demonstrated to play an etiological role in myoglobinuric renal failure. This study was performed to explore the protective effect of quercetin, a bioflavonoid, in an experimental model of myoglobinuric ARF in rats. Four groups of rats were employed in this study: group 1 served as control, group 2 was given 50% glycerol (8 ml/kg, i.m.), group 3 was given glycerol + quercetin (2 mg/kg, i.p.), and group 4 was given glycerol + DMSO (the solvent for quercetin, 5 ml/kg, i.p.). Renal injury was assessed by measuring serum creatinine, blood urea nitrogen, creatinine and urea clearance. The oxidative stress was measured by renal malondialdehyde levels, reduced glutathione levels and by enzymatic activity of catalase, glutathione reductase, and superoxide dismutase. Glycerol administration resulted in a marked renal oxidative stress, significantly deranged the renal functions as well as renal cytoarchitecture. All these factors were significantly improved by quercetin treatment. Because of its radical-scavenging and iron-chelating properties, quercetin protected the kidney against the glycerol-induced oxidative stress and resultant renal dysfunction. Based on these results, this study confirms the role of oxidative stress and demonstrates the renoprotective potential of quercetin in this rhabdomyolysis-mimicking model.
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