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Hepatic DNA and RNA adduct formation from the carcinogen 7-hydroxymethyl-12-methylbenz[a]anthracene and its electrophilic sulfuric acid ester metabolite in preweanling rats and mice
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Cited 57 time in Scopus
- Authors
- Issue Date
- 1987-04
- Publisher
- Academic Press
- Citation
- Biochemical and Biophysical Research Communications, Vol.144 No.2, pp.576-582
- Abstract
- DNA and RNA adducts that were chromatographically identical to those formed in vitro on reaction of 7-sulfooxymethyl-12-methyl-benz[a]anthracene with guanine and adenine nucleosides were formed in the livers of rats and mice given i.p. injections of 7-hydroxymethyl- or 7-sulfooxymethyl-12-methylbenz[a]anthracene. Considerably higher levels of these hepatic adducts were obtained from the latter short-lived electrophilic ester than from the hydroxymethyl compound. These observations are consistent with the finding of rat liver cytosolic sulfotransferase activity for 7-hydroxymethyl-12-methylbenz[a]-anthracene (Watabe et al., Science 215, 403, 1982). Formation of these hepatic adducts from 7-hydroxymethyl-12-methylbenz[a]anthracene was inhibited by prior administration to rats of dehydroepiandrosterone, an inhibitor of the sulfotransferase activity for this hydroxymethyl hydrocarbon. © 1987 Academic Press, Inc.
- ISSN
- 0006-291X
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