CAT and T-SOD levels assay in kidney tissues.

Rats were treated with CdCl2 and/ or Nar for 4 weeks. Then, the kidney tissues were used to determine the levels of CAT (A) and T-SOD (B). All measurement results were expressed as mean±standard deviation. *,indicates significant difference compared with the corresponding control (*P < 0.05). #, indicates statistically significant difference between the Cd and Cd + Nar groups (#P < 0.05).