Superoxide dismutase, glutathione peroxidase and catalase in the red cells of patients with malignant lymphoma

Abstract
Erythrocyte superoxide dismutase, glutathione peroxidase and catalase activities have been measured in patients with untreated malignant lymphomas. Marked deficiencies of superoxide dismutase (P < 0.001) and glutathione peroxidase (P < 0.001) were found, whereas catalase levels were normal. There was no apparent difference in enzyme activities between the different histological types of lymphoma.