The carcinogenicity of aniline-based aromatic amines is poorly reflected by their activity in short-term mutagenicity assays such as the Salmonella typhimurium reverse mutation (Ames) assay. More information about the mechanism of action of such carcinogens is needed. Here we report
Blood and urine samples were collected from six workers and two volunteers exposed to thermal degradation products from toluene diisocyanate (TDI)-based polyurethane (PUR) before and during the summer vacation. Air samples were collected on filters impregnated with 9-(N-methylaminomethyl)anthracene. The concentrations
Environmental health perspectives, 104 Suppl 3, 683-686 (1996-05-01)
The aromatic amines 2,4-diaminotoluene (2,4-DAT) and 2,6-diaminotoluene (2,6-DAT) are structural isomers that have been extensively studied for their mutagenic and carcinogenic characteristics. Both compounds are rapidly absorbed after oral administration and are equally mutagenic in the Ames test; however, 2,4-DAT
Among aminoaromatics, 2,4-diaminotoluene (2,4-DAT) and 2,6-diaminotoluene (2,6-DAT) represent a conflicting couple of isomers; despite showing the same structural alert to DNA reactivity (and thus potential genotoxicity), they are different in terms of carcinogenicity. Of the two, 2,4-DAT alone is a
Recent work in our laboratory has examined mechanisms whereby chemicals produce mutagenicity in short-term in vitro assays yet fail to produce carcinogenesis in 2-year rodent bioassays. These studies have used mutagenic structural analogs of carcinogenic and noncarcinogenic chemicals for comparison.
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