SOD1 and Sepsis: The total SOD activity in the renal arteries was increased in septic animals when compared to sham animals at 6 and 12 h after sepsis (2.3 ± 0.9 vs 30.1 ± 9, p < 0.01; 2.6 ± 1.1 vs 34.1 ± 12, p < 0.01, respectively).