Effects of DNts on the levels of Cyp2b1, Ugt1a1 and Sult2a1 in ANIT-induced cholestasis rats (n = 6 for each group). Hepatic (A) Cyp2b1, (B) Ugt1a1 and (C) Sult2a1 levels were measured (n = 6 for each group). Values are expressed as folds of control. Each bar represents represents the mean ± SD of three independent experiments. Significant difference between two groups, *p < 0.05, **p < 0.01 vs. control group; #
p < 0.05, ##
p < 0.01 vs. the ANIT-treated group.