IleumColonic NeoplasmsColon, DescendingColon, SigmoidColon, AscendingIntestinal MucosaGuinea PigsColon, TransverseMyenteric PlexusMuscle, SmoothIntestine, SmallIleal DiseasesIleitisGastrointestinal MotilityHT29 CellsColonic DiseasesAzoxymethaneMuscle ContractionIntestinesDiverticulum, ColonTime FactorsIntestinal AbsorptionCecumIleal NeoplasmsAdenocarcinomaDuodenumColitisColectomyColonDose-Response Relationship, DrugColorectal NeoplasmsColonoscopyIleocecal ValveAtropineRectumRNA, MessengerIntestine, Large1,2-DimethylhydrazineCell Line, TumorGastrointestinal ContentsPeristalsisCaco-2 CellsDiphenylacetic AcidsDimethylhydrazinesDigestive SystemImmunohistochemistryRats, WistarCrohn DiseaseTumor Cells, CulturedColitis, UlcerativeSwineRabbitsApoptosisDisease Models, AnimalAcetylcholineIleostomyIntestinal DiseasesAdenomaIntestinal ObstructionFecesGastrointestinal TractIntestinal SecretionsRectal NeoplasmsCarcinogensSigmoid NeoplasmsMicrovilliElectric StimulationDietIntestinal NeoplasmsGene Expression Regulation, NeoplasticIntestinal PerforationReverse Transcriptase Polymerase Chain ReactionDextran SulfateButyratesHexamethonium CompoundsMice, Inbred C57BLRats, Inbred F344Substance PCell ProliferationSerous MembraneCarbacholCell DivisionMice, NudeHistamineColostomy