Intestinal MucosaGastric MucosaMouth MucosaNasal MucosaMucous MembraneOlfactory MucosaColonLaryngeal MucosaDuodenumIntestine, SmallGastritisStomach UlcerIleumStomachEsophagusMetaplasiaHelicobacter pyloriColitis, UlcerativePyloric AntrumRespiratory MucosaHelicobacter InfectionsBiopsyStomach NeoplasmsStomach DiseasesImmunohistochemistryEpitheliumPrecancerous ConditionsCeliac DiseaseGastrinsColonic NeoplasmsNeisseria mucosaMouth NeoplasmsCheekAdministration, BuccalGastric JuiceImmunity, MucosalTurbinatesHydrochloric AcidGastric AcidIntestinesMucinsColorectal NeoplasmsCrohn DiseaseIntestinal AbsorptionAdenomaIntestine, LargeEpithelial CellsRNA, MessengerBarrett EsophagusGlutensAdenocarcinomaColitisMucusIntestinal DiseasesSwineGastric FundusGastritis, AtrophicInflammatory Bowel DiseasesLeukoplakia, OralGastroscopyRats, WistarIntestinal SecretionsHistamineNasal PolypsRats, Inbred StrainsVaginaEnterocytesColonic PolypsHyperplasiaEndoscopy, GastrointestinalChoristomaCecumDigestive SystemGliadinReverse Transcriptase Polymerase Chain ReactionEndoscopyHistocytochemistryTongueIntestinal PolypsBacterial AdhesionEnteritisImmunoenzyme TechniquesRats, Sprague-DawleyTime FactorsUrethral StrictureGastrointestinal TractMicroscopy, ElectronMicrovilliBronchiSucraseTongue DiseasesGastric MucinsAnti-Ulcer AgentsAzoxymethaneMicroscopy, Electron, ScanningIndomethacinLip DiseasesRhinitisLeukoplakiaDinoprostone