Abstract
Glutathione is the most abundant thiol-containing component in living cells and is believed to play an important role as an antioxidant. We have examined the levels of reduced, oxidized, and total glutathione in liver, blood, kidneys, and intestinal mucosa of mice as a function of age. Reduced glutathione levels decreased in kidneys, Intestinal mucosa, and blood while total glutathione levels decreased in all tissue with advanced age. Highest concentrations of reduced glutathione per μg protein were present in liver and intestinal mucosa. Our results support the hypothesis that a decrease in reduced glutathione may contribute to changes associated with aging as well as to the increased susceptibility to disease processes which occur with advanced age.
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