background: superoxide radicals are produced during oxidative metabolic processes, and removed by superoxide dismutase (sod) enzymes. controversial results have been reported regarding the tissue and plasma concentration of sod in patients with breast cancer. methods: venous blood was obtained from study participants and activity of sod enzyme was determined in 100 women. comparison was made be...

Angiotensin II (Ang II) produces oxidative stress and endothelial dysfunction in blood vessels. The vasculature from females may be protected against deleterious effects of Ang II. We tested the hypothesis that manganese superoxide dismutase (MnSOD) protects against Ang II-induced endothelial dysfunction. Experiments were performed in C57Bl/6, wild-type (MnSOD(+/+)), and MnSOD-deficient (MnSOD(...

the human erythrocyte is a rich raw material for the purification of cu-zn superoxide dismutase (sod). we applied a simple and rapid procedure for the purification of sod from human erythrocytes by ion exchange chromatography. the purified sod had a specific activity of 2285.6 u/mg protein and gave a single band on polyacrylamide gel electrophoresis in the presence of sodium dodecyl sulfate (sd...