A mathematical method for the study of benzo(a)pyrene (BP) penetration into the skin of nude mice was elaborated and supported by the experimental data. BP, whose concentration was measured by its fluorescence intensity, was applied to the skin using a "dry" technique. The effect of certain phenols and products of oxybenzene oxidation was studied. It was found that only butylated hydroxytoluene inhibits essentially the rate of BP metabolism.
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Cytochrome P450 mediated reactions studied in genetically engineered V79 Chinese hamster cells.
Pharmacogenetics
November 1995
Institute for Toxicology and Environmental Hygiene, Technical University of Munich, Germany.
V79 Chinese hamster cells genetically engineered for stable expression of rat and human CYP have been shown to serve as analytical tools for studying metabolism related problems in toxicology and pharmacology. Here, the application of rat and human CYP1A1 and CYP1A2 is demonstrated for comparative studies on the oxidation of polycyclic aromatic hydrocarbons, such as phenanthrene, benz[a]anthracene, and benzo[a]pyrene. Live cells were cultivated for 2 days in the presence of these chemicals.
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