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  • Title: Protective effect of oleanolic acid on gentamicin induced nephrotoxicity in rats.
    Author: Patil CR, Jadhav RB, Singh PK, Mundada S, Patil PR.
    Journal: Phytother Res; 2010 Jan; 24(1):33-7. PubMed ID: 19548288.
    Abstract:
    Oleanolic acid is a molecule of current therapeutic interest. In the present study, oleanolic acid isolated from the cuticular epithelium of Viscum articulatum Burm. f. (Viscaceae) was investigated for its protective effects on gentamicin-induced renal damage in rats. Nephrotoxicity was induced in rats by intraperitoneal injection of gentamicin at a dose of 100 mg/kg/day for 8 days. The effect of Oleanolic acid administered orally at doses 40, 60 and 80 mg/kg/day was assessed biochemically by determination of albumin, urea and creatinine in serum and urine samples and also through histopathological examination of the kidneys. Oleanolic acid protected the rat kidneys from gentamicin-induced nephrotoxicity as evident from a decrease in the serum and urine levels of creatinine, albumin and urea. Oleanolic acid also protected the rat kidneys from histological alterations induced by gentamicin and also improved the glomerular filtration rate. Compared with an earlier report on intraperitoneal administration of oleanolic acid in paracetamol-induced nephrotoxicity in rats, the data show that orally administered oleanolic acid also exerted a nephroprotective effect even in the case of a nephrotoxicant such as gentamicin, which directly deteriorates the kidney function without prior metabolism.
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