Gastric MucosaIntestinal MucosaLymphoma, B-Cell, Marginal ZoneGastritisHelicobacter pyloriStomach UlcerHelicobacter InfectionsMouth MucosaStomach NeoplasmsStomach DiseasesStomachGastric JuiceParietal Cells, GastricMetaplasiaNasal MucosaGastric AcidPyloric AntrumChoristomaGastritis, AtrophicGastrinsGastroscopyGastric MucinsPepsinogensAnti-Ulcer AgentsMucous MembraneH(+)-K(+)-Exchanging ATPaseHelicobacterHydrochloric AcidGastric FundusChromosomes, Human, Pair 18PentagastrinImmunohistochemistryBiopsyDuodenumPrecancerous ConditionsHelicobacter heilmanniiMeckel DiverticulumHistamineEthanolCARD Signaling Adaptor ProteinsRe-EpithelializationCathepsin EUreaseIndomethacinPeptic UlcerMucusCimetidineRats, WistarNeoplasm ProteinsLaryngeal Mucosa16,16-Dimethylprostaglandin E2Pepsin ABile RefluxColonDuodenal UlcerTetragastrinMetiamideMucinsOlfactory MucosaDinoprostoneOmeprazoleProstaglandins E, SyntheticPylorusChief Cells, GastricTranslocation, GeneticAnti-Inflammatory Agents, Non-SteroidalRats, Inbred StrainsPepsinogen AChromosomes, Human, Pair 11MaltoseRNA, MessengerSucralfateLewis Blood-Group SystemHelicobacter felisReverse Transcriptase Polymerase Chain ReactionEsophagusCaspasesEndoscopy, GastrointestinalGastrointestinal HemorrhageEpithelial CellsAdenocarcinomaAspirinBarrett EsophagusHistamine H2 AntagonistsPteridiumBacterial ProteinsImmersionEpitheliumEnterochromaffin CellsDyspepsiaRats, Sprague-DawleyGefarnateIntestine, SmallEsophageal DiseasesAlcohol-Induced DisordersIleumEnterochromaffin-like CellsHydrogen-Ion ConcentrationSwineChronic Disease