CarcinogensAzoxymethaneColonic NeoplasmsDimethylhydrazines1,2-DimethylhydrazinePrecancerous ConditionsColonRats, Inbred F344Colon, DescendingNitrosamines2-AcetylaminofluoreneMutagensBenzo(a)pyreneBenzopyrenesDNA AdductsColon, SigmoidCarcinogenicity TestsColon, AscendingCocarcinogenesisAcetoxyacetylaminofluoreneMethylnitrosoureaMutagenicity TestsAminobiphenyl Compounds9,10-Dimethyl-1,2-benzanthracene4-Nitroquinoline-1-oxideBiotransformation7,8-Dihydro-7,8-dihydroxybenzo(a)pyrene 9,10-oxideColon, TransverseNeoplasms, ExperimentalBenz(a)AnthracenesMethylnitronitrosoguanidineAnticarcinogenic AgentsCell Transformation, NeoplasticPolycyclic CompoundsDimethylnitrosamineMethyldimethylaminoazobenzeneFluorenesLiver Neoplasms, Experimentalp-DimethylaminoazobenzeneIntestinal MucosaAdenocarcinomaChrysenesHydroxyacetylaminofluoreneAflatoxin B1HT29 CellsMethylcholanthreneNitroquinolinesGlutathione TransferaseDiethylnitrosamineDNALiverLung NeoplasmsNeoplasmsDiverticulum, ColonDihydroxydihydrobenzopyrenesAflatoxinsMethylhydrazinesAdenomaPolycyclic Hydrocarbons, AromaticArylamine N-AcetyltransferaseDNA DamageUrethaneColonic DiseasesDose-Response Relationship, DrugCytochrome P-450 CYP1A1Methylazoxymethanol AcetateMetabolic Detoxication, DrugBenzidinesColorectal NeoplasmsCell Line, TumorSmokingMammary Neoplasms, ExperimentalCytochrome P-450 Enzyme SystemGenes, rasCytochrome P-450 CYP1A2SafroleEthylene DibromideDietIsothiocyanatesCell DivisionAzo CompoundsPapillomaTime FactorsGene Expression Regulation, NeoplasticAryl Hydrocarbon HydroxylasesTumor Cells, CulturedAcrylonitrileOccupational ExposureLiver NeoplasmsEnvironmental ExposureAlkylating AgentsMesocricetusAminesNitrosourea CompoundsDeoxyguanosineUrinary Bladder NeoplasmsApoptosisDNA RepairColitisGuanine