GastritisGastric MucosaGastritis, AtrophicIrritantsHelicobacter pyloriHelicobacter InfectionsStomach UlcerSkin Irritancy TestsIntestinal MucosaStomachPyloric AntrumMetaplasiaStomach NeoplasmsStomach DiseasesGastroscopyParietal Cells, GastricGastritis, HypertrophicMouth MucosaGastric JuiceGastrinsPepsinogen AGastric AcidDermatitis, IrritantBile RefluxNasal MucosaPepsinogensAchlorhydriaHelicobacterPeptic UlcerDuodenal UlcerBiopsyAnti-Ulcer AgentsH(+)-K(+)-Exchanging ATPaseHelicobacter heilmanniiPrecancerous ConditionsUreaseHelicobacter felisChronic DiseasePepsinogen CAnimal Testing AlternativesChoristomaGastric FundusGastric MucinsAnemia, PerniciousDyspepsiaDuodenitisMucous MembraneEndoscopy, GastrointestinalDuodenumEye DiseasesPostgastrectomy SyndromesCampylobacterImmunohistochemistryOmeprazoleAtrophyEndoscopyHydrochloric AcidAdministration, TopicalErythemaPentagastrinDuodenogastric RefluxAnti-Inflammatory Agents, Non-SteroidalEthanolAntigens, BacterialMucusToxicity Tests, AcuteIntrinsic FactorTime FactorsAmoxicillinEndoscopy, Digestive SystemRats, WistarAcetic AcidGastric Acidity DeterminationBacterial ProteinsPylorusCimetidineEyeRabbitsColonIndomethacinGastrointestinal HemorrhageHistamineAdenocarcinomaMeckel DiverticulumBenzalkonium CompoundsAdministration, CutaneousCapsaicin2-PropanolRe-EpithelializationMicroscopy, ElectronPepsin AGerbillinaeRNA, MessengerCathepsin EAntibodies, BacterialSucralfateDinoprostoneGastrin-Secreting CellsMucinsHydrogen-Ion Concentration