Celiac DiseaseIntestinal MucosaGlutensGliadinDiet, Gluten-FreeIntestine, SmallJejunumTransglutaminasesDuodenumGastric MucosaReticulinDermatitis HerpetiformisImmunoglobulin AMouth MucosaBiopsyHLA-DQ AntigensIleumIntestinesIntestinal DiseasesIntestinal AbsorptionAutoantibodiesEnterocytesProlaminsColonAvena sativaNasal MucosaDiet TherapyInterleukin-18 Receptor beta SubunitEnteritisIntestinal SecretionsMucous MembraneCrohn DiseaseSucraseAtrophyMalabsorption SyndromesMicrovilliIntestinal NeoplasmsColitis, UlcerativeJejunal DiseasesImmunity, MucosalLactuloseIgA DeficiencyHLA-DR3 AntigenEpitheliumDisaccharidasesHLA-DR7 AntigenAntibodiesEndoscopy, GastrointestinalImmunoglobulin GDuodenoscopyDiet, Protein-RestrictedWheat HypersensitivityDiarrheaSerologic TestsInflammatory Bowel DiseasesBacterial TranslocationCase-Control StudiesEnzyme-Linked Immunosorbent AssayCaco-2 CellsIntestine, LargeDuodenitisAutoimmune DiseasesGastrointestinal DiseasesMannitolPrevalencePermeabilityUlcerSwineLymphoma, T-CellJejunal NeoplasmsSteatorrheaCapsule EndoscopyDietEnterochromaffin CellsGerm-Free LifeDigestive SystemT-LymphocytesLymphocytesEndoscopy, Digestive SystemEnteropathy-Associated T-Cell LymphomaColitis, MicroscopicImmunohistochemistryPeyer's PatchesFood HypersensitivityCecumGastrointestinal TractBacterial AdhesionEpithelial Cells