Fig. 4.

Representative blots and quantification of LV antioxidant enzymes. Western blot analysis of LV superoxide dismutase-1 (SOD-1) (A), SOD-2 (B), glutathione peroxidase-1/2 (GPx1/2) (C), and catalase (D) is shown. Antioxidant enzyme expression was similar in the LV of AI-SED and AI-WR animals. However, LV SOD-2 was elevated in AI-WR more so than AI-SED relative to shams, and LV catalase was not significantly different from that of sham animals in AI-WR animals. Values are means ± SE. *P < 0.05 vs. sham, **P < 0.01 vs. sham, ***P < 0.001 vs. sham.