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The binding of benzo[a]pyrene, 7,12-dimethylbenz[a]anthracene, 3-methylcholanthrene, benz[a]anthracene, dibenz[a,c]anthracene and phenanthrene to calf thymus DNA in vitro in the absence of enzymatic or chemical activation was investigated using the 32P-postlabeling assay. Reactions were performed in the dark or under white light
The flash photolysis technique was used to examine the kinetics of CO binding to cytochromes P450 in rat liver microsomes. The effect of polycyclic aromatic hydrocarbons (PAHs) and flavones was used to distinguish the kinetic behavior of the PAH-metabolizing P450
The tumor-initiating activities of dibenz[a,c]anthracene (DBA) and of the related trans-1,2-, 3,4- and 10,11-dihydrodiols have been examined on mouse skin subsequently promoted with 12-O-tetradecanoyl-phorbol-13-acetate (TPA). The 1,2- and 10,11-dihydrodiols were active and were more active than equivalent doses of either
Incubation of r-1,t-2-dihydroxy-t-3,4-oxy-1,2,3,4-tetrahydrochrysene (anti-chrysene-1,2-diol 3,4-oxide), the bay-region diol-epoxide of chrysene, with rat liver microsomes in the presence of NADP+ and DNA, followed by 32P-postlabelling analysis of the DNA, revealed the presence of at least two adducts not detected when anti-chrysene-1,2-diol
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