the nodule cells show a very low uptake of 2-acetylaminofluorene , relative to surrounding and normal liver , low levels of activity in the cytochromes p-450 and aryl hydrocarbon hydroxylase , high levels of activity in gamma-glutamyltransferase , microsomal epoxide hydrolase , soluble glutathione-s-transferase and soluble udp-glucuronyltransferase ( udp-gt ( 1 ) ) and elevated levels of glutathione .
C0010762
cytochromes p-450
C0003927
aryl