Intestine, SmallPancreasIntestinesIntestine, LargePancreas TransplantationIntestinal MucosaJejunumIntestinal AbsorptionIleumDuodenumPancreas, ExocrinePancreatic NeoplasmsIntestinal NeoplasmsMicrovilliDigestive SystemColonPancreatic DiseasesIntestinal DiseasesPancreatic DuctsEnterocytesPancreas, ArtificialGastrointestinal MotilityAmylasesPancreatitisStomachTissue DistributionSwineIslets of LangerhansLiverRNA, MessengerPancreatectomySucraseOrgan SpecificityPaneth CellsPancreatic JuiceImmunohistochemistryCholecystokininCecumEpitheliumGerm-Free LifeRats, Inbred StrainsIntestinal SecretionsGastrointestinal TransitJejunal NeoplasmsMolecular Sequence DataMyenteric PlexusSerous MembraneDigestionDigestive System Physiological PhenomenaGastrointestinal ContentsMice, Inbred C57BLRats, WistarIleal NeoplasmsGastrointestinal TractSecretinChoristomaAnimals, SucklingEnteritisDisaccharidasesRats, Sprague-DawleyGlucagonTime FactorsGastrointestinal HormonesCarcinoma, Pancreatic DuctalPancreatic CystCaco-2 CellsInsulinGlucoseJejunal DiseasesCeruletideAmino Acid SequenceBiological TransportBase SequenceAnimals, NewbornEpithelial CellsMesenteryEnteroendocrine CellsSubmucous PlexusMyoelectric Complex, MigratingEnteric Nervous SystemMucinsMice, KnockoutGuinea PigsPeristalsisPerfusionFecesPancreatic PolypeptideKidneyOrgan SizeMice, TransgenicInterstitial Cells of CajalPeyer's PatchesDietSucrase-Isomaltase ComplexDuodenal NeoplasmsCeliac DiseaseReverse Transcriptase Polymerase Chain ReactionDogsGene Expression RegulationDiarrhea