Abstract
The diabetic subject is at significantly increased risk of developing testicular changes. Its etiology may involve oxidative damage by free radicals and protection against such damage can be offered by antioxidant supplementation. Alloxan elicited significant inhibition of antioxidants including superoxide dismutase, catalase and glutathione reductase activities and decreased glutathione content in testis. These effects were accompanied by significant elevation of testicular lipid peroxidation, decreased plasma testosterone level and a drop in copper and zinc concentrations in testis. The administration of ascorbic acid after alloxan treatment interfered and prevented alloxan action. Ascorbic acid blunted the increased testicular lipid peroxidation and the decreased plasma testosterone level probably by protecting antioxidants and the loss of copper and zinc from testes. The data suggested that ascorbic acid has a protective effect on alloxan-induced damage by maintaining the activity of cellular antioxidants.
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