Figure 6.

Butyrate modulates antioxidant enzyme activity in skeletal muscle during aging. (A) Protein carbonyls in young and old mice fed control butyrate diets. Catalase (B) protein and (C) activity were determined in muscle from young and old animals treated with control or butyrate diets. (D) MnSOD, (E) CuZnSOD, and (F) GPx activities were determined in young and old mice fed control and butyrate diets (*P < 0.05 vs. diet‐matched young; ^% P < 0.05 significant effect of diet; control young – white; control aged – black; butyrate young – light gray; butyrate aged – dark gray). All data are displayed as means with standard error.