Fig. 4.

Effect of saffron extract on serum GSH (a), SOD (b) and CAT (c) (U/gp). Control (C), untreated diabetic rats (D), saffron (10 mg/kg/day)-treated diabetic (D + Sf1), saffron (20 mg/kg/day)-treated diabetic (D + Sf2) and saffron (40 mg/kg/day)-treated diabetic (D + S3) rats during 4 weeks of study (n = 9, for each group). Values are the mean ± SEM. Statistical significance for the difference between the data of control vs other groups: *p < 0.05, **p < 0.01. Statistical significance for the difference between the data of diabetes vs treated groups: +p < 0.05.