Abstract
It is well known that lipid peroxidation increases with age, and alcohol drinking further exacerbates this damage. The present study determined the effect of regular exercise training on alcohol-induced oxidative damage and antioxidant status in the liver of aged animals. The age-matched Wistar albino rats (3 months young, n = 24; 18 months old, n = 24) were evenly divided into four groups: control (C), exercise trained (Ex), ethanol drinking (Et), and exercise plus ethanol drinking (Ex + Et). With ethanol drinking, hepatic malondialdehyde (MDA) level was significantly elevated above control ( P < .001), whereas glutathione (GSH) and ascorbic acid (vitamin C) contents were significantly decreased below control. These changes were found to be greater in the aged rats than those of the young rats. For both age groups, exercise training significantly reversed the increase in MDA and decreases in GSH and ascorbic acid induced by ethanol drinking. The present study showed that ethanol-induced deterioration in lipid peroxidation and reduction in antioxidant status in the liver were exacerbated with age. Here, we found that exercise training significantly reversed the adverse conditions that were caused by ethanol in aged rats.
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