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Application of a dynamic in vitro gastrointestinal tract model to study the availability of food mutagens, using heterocyclic aromatic amines as model compounds.
TLDR
The present experiments demonstrate that TIM can be applied to study in vitro the availability of heterocyclic aromatic amines in the gastrointestinal tract and indicates that TIM shows promise as a useful tool for various research purposes dealing with the availability for absorption of mutagenic as well as antimutagenic components in food. Expand
Tumorigenic effects in Wistar rats orally administered benzo[a] pyrene for two years (gavage studies). Implications for human cancer risks associated with oral exposure to polycyclic aromatic
Polycyclische Aromatische Koolwaterstoffen (PAK) komen zowel wijdverbreid in het milieu als in voedsel voor, beide als gevolg van menselijk handelen. PAK worden beschouwd als kankerverwekkend voorExpand
Molecular and genetic basis of furocoumarin reactions.
Carcinogenic activity of benzo[a]pyrene in a 2 year oral study in Wistar rats.
TLDR
The increase in liver tumours is considered the most relevant effect for human risk assessment in terms of pathogenesis and sensitivity, and is proposed as the basis for human cancer risk assessment for oral PAH exposure. Expand
The detection and evaluation of aneugenic chemicals.
TLDR
The European Union Project was aimed to further the understanding of those chemical interactions with the components of the mitotic and meiotic cell division cycle which may lead to aneuploidy and to characterise the parameters such as cellular metabolism which may influence the activity of aneugenic chemicals. Expand
Mutagenic activity of major mammalian metabolites of cyclophosphamide toward several genes of Escherichia coli.
Representative intermediates of the major mammalian metabolic pathway of cyclophosphamide, a drug that is not mutagenic as such unless it is metabolically activated, were assayed for their directExpand
Marked differences in the role of O6-alkylguanine in hprt mutagenesis in T-lymphocytes of rats exposed in vivo to ethylmethanesulfonate, N-(2-hydroxyethyl)-N-nitrosourea, or N-ethyl-N-nitrosourea.
TLDR
Analysis of the hprt gene of rat T-lymphocytes from spleen exposed in vivo to the monofunctional ethylating agents ethylmethanesulfonate and N-ethyl-N-nitrosourea and HOENU and ENU suggests that DNA damage induced by these agents in vivo is processed in similar ways. Expand
Effect of chrysin, a flavonoid compound, on the mutagenic activity of 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) and benzo(a)pyrene (B(a)P) in bacterial and human hepatoma (HepG2) cells
TLDR
The findings show that data from antimutagenicity studies with bacterial indicators cannot be extrapolated to HepG2 cells, and that CR causes genotoxic effects at higher dose levels in the latter cells. Expand
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