The purpose of this work was to investigate the administration of very low but repeated doses of a genotoxic carcinogen and an eventual correlation with cellular DNA synthesis. The compound 7H-dibenzo[c,g]carbazole is a genotoxic carcinogen in the mouse liver and
Liver progenitor (oval) cells are a potential target cell population for hepatocarcinogens. Our recent study showed that the liver carcinogens 7H-dibenzo[c,g]carbazole (DBC) and 5,9-dimethyldibenzo[c,g]carbazole (DiMeDBC), but not the sarcomagen N-methyldibenzo[c,g]carbazole (N-MeDBC), induced several cellular events associated with tumor promotion in
The time-course and dose dependent formation of DNA adducts in juvenile northern pike (Esox lucius) following a single exposure to a mixture of benzo[a]pyrene (BaP), benzo[k]fluoranthene (BkF) and 7H-dibenzo[c,g]carbazole (DBC) were investigated by use of the (32)P-postlabelling assay. A complex
Studies of the impact of phase 1 enzyme polymorphisms on genetic damage have yielded mixed results. We studied how genetic damage would be altered when specific genes were ablated under low dose conditions. Knockouts (KO) were generated from c57bl6/J mice
Toxicology in vitro : an international journal published in association with BIBRA, 16(3), 235-243 (2002-05-22)
7H-Dibenzo[c,g]carbazole (DBC) is a model N-heterocyclic aromatic compound (NHA) which is both a hepatotoxin and hepatocarcinogen in rodents. The focus of this investigation was to determine whether human liver cell lines display differential sensitivities to DBC-induced toxicity. Treatment of cell
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