Table 4

EH and glucuronosyltransferase activities in intestinal and hepatic microsomes

Diet	EH		UGT
	Intestine	Liver	3-OH-BaP		7-OH-BaP		9-OH-BaP
	Intestine	Liver	Intestine	Liver	Intestine	Liver	Intestine	Liver
	nmol/min/mg protein		nmol/min/mg protein		nmol/min/mg protein		nmol/min/mg protein
Purified	3.78 ± 1.95	2.62 ± 1.0	0.39 ± 0.13	0.45 ± 0.11	0.35 ± 0.07	0.46 ± 0.05	0.17 ± 0.04	0.36 ± 0.07^4-a
Chow	2.93 ± 1.58	2.13 ± 0.60	0.39 ± 0.07	0.45 ± 0.16	0.42 ± 0.05	0.47 ± 0.03	0.20 ± 0.06	0.35 ± 0.07^4-a
Chow + BNF	2.16 ± 1.02	2.93 ± 1.39	0.39 ± 0.10	0.47 ± 0.05	0.42 ± 0.07	0.48 ± 0.03	0.19 ± 0.05	0.34 ± 0.09^4-a
(10 mg/kg diet)
Chow + BNF	2.20 ± 0.51	6.38 ± 2.06^4-a ^, ^4-b	0.28 ± 0.06	0.50 ± 0.11^4-a	0.27 ± 0.04^4-c	0.49 ± 0.05^4-a	0.11 ± 0.01^4-c	0.36 ± 0.05^4-a
(100 mg/kg diet)

Values shown are the means ± SD for N = 6–8 individual catfish maintained on a purified diet,N = 5 catfish on chow control, and N = 4 for each of the BNF-containing diets. OH, hydroxy.
↵4-a Liver significantly higher than intestine from catfish on the same diet, p < 0.05.
↵4-b Significantly higher than other diets,p < 0.05.
↵4-c Significantly lower than any other diet,p < 0.05.