PMID: 7581027Jan 1, 1995Paper

Effects of dietary protein, angiotensin I converting enzyme inhibition and mesangial overload on the progression of adriamycin-induced nephropathy

Brazilian Journal of Medical and Biological Research = Revista Brasileira De Pesquisas Médicas E Biológicas
P BarrettiV Soares

Abstract

Adriamycin, a commonly used antineoplastic antibiotic, induces glomerular lesions in rats, resulting in persistent proteinuria and glomerulosclerosis. We studied the effects of dietary protein and of an angiotensin I converting enzyme inhibitor on the progression of this nephropathy and the evolution of the histological lesions, as well as mesangial macromolecule flow. Adriamycin nephropathy was induced by injecting a single iv dose of adriamycin (3 mg/kg body weight) into the tail vein of male Wistar rats (weight, 180-200 g). In Experiment I animals with adriamycin-induced nephropathy were fed diets containing 6% (Low-Protein Diet Group = LPDG), 20% (Normal-Protein Diet Group = NPDG) and 40% (High-Protein Diet Group = HPDG) protein and were observed for 30 weeks. In Experiment II the rats with adriamycin nephropathy were divided into 2 groups: ADR, that received adriamycin alone, and ADR-ENA, that received adriamycin plus enalapril, an angiotensin I converting enzyme inhibitor. The animals were sacrificed after a 24-week observation period. Six hours before sacrifice the animals were injected with 131I-ferritin and the amount of 131I-ferritin in the glomeruli was measured. In Experiment III, renal histology was performed 4, 8 ...Continue Reading

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