MutagenesisCarcinogensMutagenesis, Site-DirectedCarcinogenesisCell Transformation, NeoplasticCocarcinogenesis9,10-Dimethyl-1,2-benzanthracenePrecancerous ConditionsAzoxymethaneAnticarcinogenic AgentsPapillomaRats, Inbred F344Mutagenesis, InsertionalSkin NeoplasmsMethylnitrosoureaMolecular Sequence DataMutationColonic NeoplasmsCarcinogenicity Tests1,2-DimethylhydrazineNeoplasms, ExperimentalNitrosaminesBase SequenceAmino Acid SequenceMammary Neoplasms, ExperimentalGene Expression Regulation, NeoplasticStomach NeoplasmsMethylnitronitrosoguanidine4-Nitroquinoline-1-oxideAdenocarcinomaAdenomaNeoplasms, Radiation-InducedLiver Neoplasms, ExperimentalNeoplasmsCarcinoma, Squamous CellDiethylnitrosamineMutagensCarcinogens, EnvironmentalButylhydroxybutylnitrosamineDimethylhydrazinesBenzo(a)pyreneGenes, rasImmunohistochemistryCell Line, TumorBinding SitesMesocricetusColorectal NeoplasmsHyperplasiaDNA DamageDNA MethylationMouth NeoplasmsUltraviolet RaysCyclooxygenase 2Liver NeoplasmsChemopreventionLung NeoplasmsMice, TransgenicDNA AdductsColonCell ProliferationCell DivisionApoptosisModels, MolecularMutagenicity TestsCarcinomaEscherichia coliRNA, MessengerIntestinal NeoplasmsReverse Transcriptase Polymerase Chain ReactionTumor Suppressor Protein p53Signal TransductionDNA Primers2-AcetylaminofluoreneAzaserineKeratinocytesPromoter Regions, GeneticPolymerase Chain ReactionDNACricetinaeEthylnitrosoureaDisease Models, AnimalUrethaneCell LineTumor Markers, BiologicalUrinary Bladder NeoplasmsGenes, Tumor SuppressorDNA, NeoplasmGenes, p53Esophageal NeoplasmsEpithelial CellsMice, Inbred SENCARDNA RepairDisease ProgressionStructure-Activity RelationshipBenz(a)AnthracenesBlotting, WesternDietDNA-Binding ProteinsLiverAlkylating Agents