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- W2058800592 abstract "Samples of 22 polycyclic aromatic hydrocarbons and related derivatives were subjected to 60Co gamma radiation in air, and the irradiated samples were tested for mutagenicity with the Salmonella typhimurium strains TA 98, TA 1535, TA 1537, and TA 1538. Testing was conducted with the bacterial strains alone, thus not fortified with liver-microsomal enzymes or other metabolizing systems. Marked mutagen responses were obtained for several irradiated samples with the TA 98, TA 1537, and TA 1538 strains but not with the TA 1535 strain. Irradiated samples of benzo[a]anthracene, benzanthrone, benozo[g,h,i]perylene, benzo[a]pyrene, chrysene, fluorene, 9-methylanthracene, 1-methylphenanthrene, 2-methylphenanthrene, and pyrene gave positive mutagenic tests and dose-responses, whereas unirradiated control samples of these were inactive. Acenaphthene, phenanthrene, and phenanthrenequinone exhibited toxicity which interfered with interpretation of mutagenicity testing. Samples of 2-methylanthracene and tetracene were mutagenic with or without irradiation. Alizarin, anthracene, anthraquinone, anthrone, dobenzo[a,h]anthracene, picene, and triphenylene negative results. Samples of benzo[a]pyrene adsorbed on silica gel irradiated in air by 60Co gamma radiation or by 254 nm ultraviolet light and samples adsorbed on filter paper irradiated by visible light yielded preparations mutagenic towards the TA 98, TA 1537, and TA 1538 strains. These results suggest that parent polycyclic aromatic hydrocarbons not themselves mutagenic towards S. typhimurium may be oxidized in air by radiation-induced processes to products whose mutagenicity resembles that of liver-microsomal metabolites of the parent polycyclic aromatic hydrocarbon." @default.
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- W2058800592 date "1978-02-01" @default.
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- W2058800592 title "Non-enzymic activation of polycyclic aromatic hydrocarbons as mutagens" @default.
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- W2058800592 doi "https://doi.org/10.1016/0027-5107(78)90152-5" @default.
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