CAT and chronic kidney disease: Catalase activity (in Abs/min/mg protein) was found to be 33.11 ± 0.24, 2.45 ± 0.15, 3.11 ± 0.53 and 2.33 ± 0.20 in the cortex, striatum, hippocampus and substantia nigra of control mice brain, while the same was 2.57 ± 0.41, 1.89 ± 0.38, 2.35 ± 0.25 and 1.78 ± 0.34 respectively in these brain regions of the CKD mice (Fig. 12B; Supplementary Table 2).