Gastric AcidPentagastrinGastric JuiceGastrinsBase PairingBase SequenceGastric MucosaAcid-Base EquilibriumGastric Acidity DeterminationAcid-Base ImbalanceParietal Cells, GastricHydrogen-Ion ConcentrationAchlorhydriaStomachBethanechol CompoundsSecretory RateHistamine H2 AntagonistsPeptonesHistamineDuodenal UlcerCimetidineAnti-Ulcer AgentsKineticsVagotomyOmeprazoleCytosineNucleic AcidsVagotomy, Proximal GastricSkull BaseSchiff BasesGuanineBase CompositionFamotidineBicarbonatesStomach UlcerH(+)-K(+)-Exchanging ATPaseHydrochloric AcidCarbocysteineVagus NerveMolecular Sequence DataModels, MolecularThermodynamicsTetragastrinHydrogen BondingAntacids2-PyridinylmethylsulfinylbenzimidazolesMetiamideProton Pump InhibitorsAlkalosisCatalysisGastric FistulaAminopyrineAdenineDNABinding SitesNucleic Acid ConformationPurinesAcidsAcidosisAlkaliesZollinger-Ellison SyndromeBethanecholSomatostatinModels, ChemicalRanitidinePepsin ASecretinGastric EmptyingDNA, B-FormEnterochromaffin-like CellsAlkalosis, RespiratoryRabeprazoleAmino Acid SequenceUracilBenzoxepinsMagnetic Resonance SpectroscopyXanthopterinPyloric AntrumDuodenumLansoprazoleProtein BindingCrystallography, X-RayFoodEscherichia coliSodium BicarbonateEducation, VeterinaryThymineProtein ConformationPylorusHypermediaGastrin-Secreting CellsSubstrate SpecificitySpectrophotometry, UltravioletTemperatureBenzimidazolesNucleic Acid DenaturationGasesGastrointestinal HormonesStomach DiseasesSkull Base Neoplasms