Table 9. Effect of eriodictyol on colonic tissue levels of SOD and CAT in control and experimental rats.

Parameters and samples	Groups
	Control	DMH	Eriodictyol	Initiation	Post-initiation	Entire period
SOD a
Proximal colon	10.23 ± 0.11a	5.42 ± 0.03b	11.12 ± 0.04a	7.52 ± 0.12c	7.85 ± 0.34c	8.74 ± 0.18d
Distal colon	10.61 ± 0.21a	5.49 ± 0.08b	11.19 ± 0.13c	7.51 ± 0.05d	7.95 ± 0.11d	8.77 ± 0.36e
Intestine	10.20 ± 0.14a	5.39 ± 0.17b	11.09 ± 0.22c	7.49 ± 0.27d	7.84 ± 0.24d	8.71 ± 0.05e
CAT b
Proximal colon	38.35 ± 0.14a	22.42 ± 0.33b	39.12 ± 0.18a	28.33 ± 0.01c	29.16 ± 0.11c	30.91 ± 0.13d
Distal colon	38.21 ± 0.45a	22.84 ± 0.08b	40.42 ± 0.34c	28.57 ± 0.04d	29.49 ± 0.06d	31.31 ± 0.61e
Intestine	37.81 ± 0.34a	21.89 ± 0.63b	39.14 ± 0.64c	28.08 ± 0.17d	28.61 ± 0.42d	29.62 ± 0.37c,d

^aEnzyme required for 50% inhibition of NBT reduction per min per mg of protein.

^bμmoles of H₂O₂ utilized per mg protein.