Fig. 1. Effect of corn oil and fish oil on antioxidant enzyme activities in spleen tissues of MRL/lpr mice. Values are mean ± SEM for 5 mice/group. Enzyme units are superoxide dismutase—µmol cytochrome C reduced/min, catalase—µmol formaldehyde produced/min, glutathione peroxidase—µmol NADPH oxidized/min, glutathione S-transferase—µmol 1-chloro-2,4-dinitrobenzene-glutathione conjugate formed/min % 100. *significantly different at p < 0.05 by Student’s t test. **significantly different at p < 0.01 by Student’s t test. SOD = superoxide dismutase, CAT = catalase, GPx = glutathione peroxidase, GST = glutathione S-transferase.