EnterocytesIntestine, SmallChorionic VilliIntestinal MucosaMicrovilliJejunumIntestinesDuodenumIleumChorionic Villi SamplingPeyer's PatchesEnteritisIntestinal AbsorptionEpitheliumEpithelial CellsSwineMicroscopy, ElectronDiarrheaMicroscopy, Electron, ScanningRats, WistarImmunohistochemistryRabbitsCaco-2 CellsSucraseRNA, MessengerApoptosisPlacentaTrophoblastsPregnancySucrase-Isomaltase ComplexDisaccharidasesPregnancy Trimester, FirstIntestinal DiseasesPrenatal DiagnosisArachnoidAnimals, SucklingGerm-Free LifeSodium-Glucose Transporter 1AmniocentesisLactase-Phlorizin HydrolaseGlucagon-Like Peptide 2Antigens, CD13ColonLactaseCeliac DiseaseGoblet CellsAnimals, NewbornPaneth CellsEnterocolitis, NecrotizingJejunal DiseasesDigestive SystemGlutamineIleitisalpha-GlucosidasesJejunoileal BypassWeaningPlacentationFatty Acid-Binding ProteinsPhlorhizinGlucose Transporter Type 2Bacterial AdhesionShort Bowel SyndromeNecturus maculosusCarrier ProteinsCell DifferentiationSwine DiseasesBacterial TranslocationGliadinAlkaline PhosphataseHistocytochemistryMice, Inbred C57BLChylomicronsHydatidiform MolePlacenta DiseasesTime FactorsFetal DiseasesRats, Inbred StrainsGene ExpressionPregnancy, TubalApolipoprotein B-48DuodenitisTissue DistributionMembrane ProteinsFluorescent Antibody TechniqueIntestine, LargeGestational AgeCation Transport ProteinsRats, Sprague-DawleyCitrullineCell MembraneMice, TransgenicMucositisRotavirusFetusChloride-Bicarbonate AntiportersBasement MembraneAbsorptionGastrointestinal TractMice, KnockoutChorion