Cytochrome P-450 forms appearing in the liver after injection of methylcholanthrene, polychlorinated biphenyls and perfluorochemical emulsion to rats were studied. Activities of marker enzymes, benzpyrenehydroxylase and 7-ethoxyresorufin-O-deethylase, as well as the interaction of liver microsomal membranes with antibodies against different cytochrome forms were investigated. It was shown that fluorocarbon emulsion containing perfluorodecalin did not induce cytochrome P-448 in the rat liver.
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