Effect of treatment with Pc (50, 100 mg/kg) on superoxide dismutase (SOD) levels in (a) cerebral cortex; #p <0.05—sham versus ICV-STZ, **p <0.01—ICV-STZ versus RIV, *p <0.05—ICV-STZ versus Pc 100 and (b) hippocampus of ICV-STZ administered rats; ###p <0.001—sham versus ICV-STZ, **p <0.01—ICV-STZ versus RIV, *p <0.05—ICV-STZ versus Pc 100. Values were expressed as mean ± SEM. The intergroup variation was measured by one way ANOVA followed by Tukey’s test using Graphpad prism 5.0 (Graphpad Software Inc, CA, USA)