The aim of this study was to compare the effect of melatonin and angiotensin II type 2 receptor agonist compound 21 (C21) to angiotensin converting enzyme inhibitor captopril and angiotensin II type 1 receptor blocker olmesartan on animal model of doxorubicin nephrotoxicity. Six groups of Wistar rats were treated for four weeks.
The first group served as a control. The remaining groups were injected with a single dose of doxorubicin (5 mg/kg i.v.) at the same day as administration of either vehicle or captopril (100 mg/kg/day) or olmesartan (10 mg/kg/day) or melatonin (10 mg/kg/day) or C21 (0.3 mg/kg/day) was initiated.
All four substances significantly diminished the level of oxidative burden and prevented the reduction of glomerular density. We conclude that captopril, olmesartan, melatonin and C21 exerted a similar level of renoprotective effects in doxorubicin-induced nephrotoxicity.