Fig. 3.

Copper zinc superoxide dismutase (SOD1; A), manganese superoxide dismutase (SOD2; B), glutathione peroxidase 1 (GPX1; C), catalase (D), and heat shock protein 72 (HSP72; E) protein levels in cardiac tissue of sedentary, exercise, sedentary-Dox, and exercise-Dox animals. Representative Western blots are shown above the graphs. Data are presented as means ± SD. Sedentary, n = 7; exercise, n = 6; sedentary-Dox, n = 5; and exercise-Dox, n = 6. *P < 0.05 compared with sedentary; #P < 0.05 compared with exercise; †P < 0.05 compared with sedentary-Dox.