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SOD and catalase activities and total sulfhydryl content (protein SH groups and reduced glutathione) in the skeletal muscle homogenates from nonTg (black bars) and 3xTg-AD (gray bars) mice with 3, 6 and 12 months of age. Error bars represent standard deviation for n≥3 independent experiments. **, *** Significantly black bars different from nonTg group, with p≤0.01 and p≤0.001, respectively. a, b Significantly different from 3 and 6 months of age, respectively, with p≤0.05.
