(a)
(b)
Figure 3: (a) Effects of 12-week wheel-running exercise and nutrition on the cardiac nitrotyrosine (3-NT; expressed as pmol/mg protein). Results are shown as means ± S.E.M.  = 6–8. (b) Effects of 12-week wheel-running exercise and nutrition on the glutathione level (GSH; expressed as nmol/mg protein). Results are shown as means ± S.E.M.  = 6–8. Statistical significance: relative to the SO CTRL group, and shows a significant difference between the running and nonrunning groups. SO = sham-operated; OVX = ovariectomized; CTRL = standard chow; HT = high-triglyceride diet.