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  • Title: Comparison of the induction course, biophysical chemical interactions and photochemical action spectra of phenobarbital and 3-methylcholanthrene induce hepatic microsomal P-450.
    Author: Cooper DY, Schleyer H, Thomas JH, Vars HM, Rosenthal O.
    Journal: Adv Exp Med Biol; 1975; 58(00):81-102. PubMed ID: 1155254.
    Abstract:
    A comparison has been made of the physical and chemical properties of hepatic microsomal P-450 and associated enzyme systems from rats treated with phenobarbital or with 3-methylcholanthrene and other polycyclic aryl hydrocarbons. The results of these studies, though preliminary in nature, indicate clearly that the aryl-induced mixed-function oxidase systems differ significantly from the PB-induced ones in time course of induction, spectral properties, hyroxylase and demethylase activities, CO-inhibition of these reactions and light-reversal of the inhibition. The results support and extend the findings of other investigators regarding the differential biophysical and biochemical properties of aryl-induced systems and provide an experimental design for studying these properties in greater depth at the maximum of aryl induction.
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