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.
CITATION STYLE
Cooper, D. Y., Schleyer, H., Thomas, J. H., Vars, H. M., & Rosenthal, O. (1975). Comparison of the induction course, biophysical chemical interactions and photochemical action spectra of phenobarbital and 3-methylcholanthrene induce hepatic microsomal P-450. Advances in Experimental Medicine and Biology, 58, 81–102. https://doi.org/10.1007/978-1-4615-9026-2_6
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