Time dependent effects of gentamicin on the enzymes of carbohydrate metabolism, brush border membrane and oxidative stress in rat kidney tissues

Life Sciences
Anees A BandayFarah Khan

Abstract

Gentamicin (GM), an antibiotic against life threatening bacterial infection, induces remarkable toxicity in the kidney. Histological studies have indicated that mitochondria, microsomes, lysosomes and plasma membranes of renal proximal convoluted tubules in particular are major GM targets. Despite numerous investigations, the biochemical/cellular basis of GM nephrotoxicity is not well understood. Recently reactive oxygen species (ROS) are considered to be important mediators of GM-induced nephrotoxicity. We hypothesize that GM causes damage to intracellular organelles and affects their structural integrity and alters metabolic and other functional capabilities. To address above hypothesis a long-term, time-dependent effect of GM has been studied on blood/urine parameters, enzymes of carbohydrate metabolism, brush border membrane (BBM) and basolateral (BLM), lysosomes and oxidative stress in renal tissues. A nephrotoxic dose of GM (80 mg/kg body weight) was administered to rats daily for 15 days. The long-term treatment with GM induced a significant increase in serum creatinine, blood urea nitrogen followed by massive proteinuria, glucosuria, enzymuria along with loss of electrolytes in the urine. The activities of the enzymes o...Continue Reading

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