S. Monnerjahn

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1-Hydroxymethylpyrene (HMP) is activated to a potent mutagen, detectable in Salmonella typhimurium, in the presence of hepatic cytosol, cofactor for sulfotransferases, and chloride anions. The number of induced mutations is linear to the amount of cytosol used over a wide range, allowing for the quantification of this activity. The activity is expressed(More)
The binding of 1-hydroxymethylpyrene (HMP) and its active metabolites, 1-hydroxymethylpyrene sulfate (SMP) and 1-chloromethylpyrene (CMP), to DNA was studied. In the liver of rats, maximum adduct levels were observed 1.5 h after i.p. injection of HMP, followed by a relatively rapid decrease. Separate exposure of different liver cell types in vitro to HMP(More)
In vitro incubation of mouse epidermis homogenate with arachidonJc acid shows the production of small amounts of 8-HETE and 12-HETE by 8and 12-1ipoxygenase, r~tively. To investigate the tissue levels of monohyckoxylated products of linoleic acid (18:2) and arachidonic acid (20:4) in normal, hyperplastic and neoplastic mouse epidermis an assay was developed(More)
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