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Mitochondrial superoxide dismutase (SOD). The SOD activity was evaluated in the hippocampus (a) and cortex (b) during the treatment with dexamethasone (0.7 mg/kg/1 day or 0.2 mg/kg/7 days). Values are expressed as mean ± SD (n = 5 for each group). *Different from sham (P < 0.05), **different from sham with dexamethasone.
