the levels of two cytochrome p-450-linked enzymes of xenobiotic metabolism , benzphetamine n-demethylase and aryl hydrocarbon hydroxylase , were determined in cells isolated from gamma-glutamyl transpeptidase ( ggt ) -positive foci and in cells from surrounding liver obtained from carcinogen-treated inbred f344 rats .
C0010762
cytochrome p-450
C0003927
aryl hydrocarbon hydroxylase