Gastric AcidNeutralization TestsPentagastrinGastric JuiceGastrinsGastric MucosaAcid-Base EquilibriumGastric Acidity DeterminationHydrogen-Ion ConcentrationParietal Cells, GastricAcid-Base ImbalanceBase PairingBase SequenceAchlorhydriaAntibodies, NeutralizingStomachBethanechol CompoundsSecretory RateHistamine H2 AntagonistsPeptonesHistamineDuodenal UlcerKineticsCimetidineAntibodies, ViralAnti-Ulcer AgentsVagotomyOmeprazoleMolecular Sequence DataCytosineVagotomy, Proximal GastricNucleic AcidsGuanineHIV AntibodiesFamotidineBicarbonatesHydrochloric AcidModels, MolecularStomach UlcerH(+)-K(+)-Exchanging ATPaseAmino Acid SequenceCarbocysteineVagus NerveAntacidsAntibodies, MonoclonalTetragastrin2-PyridinylmethylsulfinylbenzimidazolesThermodynamicsMetiamideEpitopesProton Pump InhibitorsBinding SitesGastric FistulaAlkalosisAminopyrineCatalysisAcidsHydrogen BondingPurinesAcidosisHIV Envelope Protein gp120Zollinger-Ellison SyndromeAdeninePepsin ABethanecholSomatostatinAlkaliesRanitidineProtein ConformationSecretinModels, ChemicalProtein BindingGastric EmptyingEnterochromaffin-like CellsAlkalosis, RespiratoryRabeprazoleDNADNA, B-FormAntigens, ViralBenzoxepinsDuodenumNucleic Acid ConformationSodium BicarbonateCrystallography, X-RayHIV-1Pyloric AntrumLansoprazoleXanthopterinFoodMagnetic Resonance SpectroscopyEducation, VeterinaryPylorusImmune SeraGastrin-Secreting CellsHypermediaViral Envelope ProteinsUracilSchiff BasesMutationCross Reactions