EnterocytesIntestine, SmallIntestinal MucosaJejunumCaco-2 CellsMicrovilliIntestinesDuodenumIntestinal AbsorptionIleumSucrase-Isomaltase ComplexSucraseEpitheliumNecturus maculosusAnimals, SucklingLactase-Phlorizin HydrolaseEnterocolitis, NecrotizingPeyer's PatchesGlutamineGerm-Free LifeSwineAntigens, CD13Apolipoprotein B-48Sodium-Glucose Transporter 1Cation Transport ProteinsCitrullineEpithelial CellsColonFatty Acid-Binding ProteinsChylomicronsBacterial AdhesionCeliac DiseaseGliadinMicroscopy, ElectronEndoplasmic Reticulum, SmoothGlucose Transporter Type 2PhlorhizinIntestinal DiseasesNecturusGlucose Transporter Type 5Goblet CellsImmunohistochemistryEnteroendocrine CellsRNA, MessengerCarrier ProteinsLactaseIronDisaccharidasesElementsAnimals, NewbornEnteropeptidaseOrnithinealpha-GlucosidasesAbsorption1-Pyrroline-5-Carboxylate DehydrogenaseFerrozineMembrane Proteins