Assessment of cytochrome P450 fluorometric substrates with rainbow trout and killifish exposed to dexamethasone, pregnenolone-16α-carbonitrile, rifampicin, and β-naphthoflavone

Cytochrome P450s (CYPs) are important xenobiotic metabolizing proteins. While their functions are well understood in mammals, CYP function in non-mammalian vertebrate systems is much less defined, with function often inferred from mammalian data, assuming similar function across vertebrate species. In this study, we investigate whether in vivo treatment with known mammalian CYP inducers can alter the in vitro catalytic activity of fish …