Abstract
Background: Overiectomized rats suffer from osteoporosis that mainly results from oxidative stress (OS). Studies revealed that the levels of antioxidant enzymes, such as superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione-S-transferase, catalase (CAT), and glutathione reductase could be used to determine and follow-up OP. The anti-oxidant activity of anti-osteoporotic drugs needs further investigations to be proved to add more confidence in the ability of these drugs to control the disease. Objective: To investigate the possible anti-oxidant effect of treatment with ibandronate, a highly potent nitrogen-containing bisphosphonate, on activities of catalase and glutathione peroxidase anti-oxidant enzymes, thiobarbituric reactive substance (TBARS), as a marker of lipid peroxidation and DEPPD free radicals in liver homogenates of ovariectomized rats. Methods: Fifty adult female albino rats were divided into five equal groups ( n=10 rats): Group (1): served as control injected with saline, 2 nd
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