2020
Hormonal Regulation of Cholangiocyte Secretion
Gigliozzi A, Fraioli F, Boyer J. Hormonal Regulation of Cholangiocyte Secretion. 2020, 89-95. DOI: 10.1201/9780367813888-8.Peer-Reviewed Original ResearchVasoactive intestinal peptideCholangiocyte secretionBicarbonate secretionBicarbonate-rich choleresisPost-prandial phaseExert inhibitory effectsCGMP-independent pathwayBicarbonate excretionIntestinal peptideParasympathetic systemPKA-dependent pathwayHepatic bileCholangiocyte proliferationActivation of calcineurinMaximal stimulationInhibitory effectSecretionBicarbonate requirementEnhanced expressionAdenylyl cyclaseHormonal regulationDigestive functionMajor determinantActivationCorticosteroids
2001
Cl−-dependent secretory mechanisms in isolated rat bile duct epithelial units
Singh S, Mennone A, Gigliozzi A, Fraioli F, Boyer J. Cl−-dependent secretory mechanisms in isolated rat bile duct epithelial units. AJP Gastrointestinal And Liver Physiology 2001, 281: g438-g446. PMID: 11447024, DOI: 10.1152/ajpgi.2001.281.2.g438.Peer-Reviewed Original ResearchMeSH KeywordsAmmonium ChlorideAnimalsBariumBicarbonatesBile Ducts, IntrahepaticBumetanideCarbon DioxideCarrier ProteinsCell PolarityCells, CulturedChloridesColforsinEpithelial CellsHydrogen-Ion ConcentrationIon TransportMaleModels, BiologicalRatsRats, Sprague-DawleySodiumSodium-Potassium-Chloride SymportersConceptsCO2/HCOFluid secretionCotransport activityIntrahepatic bile duct epitheliumBile duct epitheliumDependent fluid secretionHigh intracellular Cl(-) concentrationIntracellular Cl- concentrationBile duct unitsApical Cl(-) secretionNH entryInitial acidification rateIntracellular cAMP concentrationNH4Cl exposureDuct epitheliumInhibitor bumetanideChannel inhibitorsCl(-) secretionCanalicular bileDuct unitsSecretionDependent secretionSecretory mechanismBumetanideForskolinCholestatic syndromes
Trauner M, Boyer J. Cholestatic syndromes. Current Opinion In Gastroenterology 2001, 17: 242-256. PMID: 17031165, DOI: 10.1097/00001574-200105000-00007.Peer-Reviewed Original ResearchCholestatic syndromeTotal parenteral nutrition-induced cholestasisParenteral nutrition-induced cholestasisHereditary cholestatic syndromesPrimary biliary cirrhosisCholestasis of pregnancyCholestatic liver diseaseDrug-induced cholestasisHepatobiliary transport proteinsBiliary cirrhosisClinical featuresLiver diseaseBile secretionCholestasisSyndromePathogenesisImportant new studiesNew studiesCholangitisCirrhosisPregnancyDiseaseSecretionTransporter geneIsolation of functional polarized bile duct units from mouse liver
Cho W, Mennone A, Boyer J. Isolation of functional polarized bile duct units from mouse liver. AJP Gastrointestinal And Liver Physiology 2001, 280: g241-g246. PMID: 11208546, DOI: 10.1152/ajpgi.2001.280.2.g241.Peer-Reviewed Original ResearchConceptsVasoactive intestinal peptideBile duct epitheliumMurine animal modelBile duct unitsPortal perfusionIntestinal peptideSecretory responseAnimal modelsBlunt dissectionDuct epitheliumSecretory stimuliFluid secretionDuct unitsCholangiocyte secretionFurther enzymatic digestionMouse liverSecretionMurine animalsIBDUMice
2000
Cholestatic syndromes
Trauner M, Boyer J. Cholestatic syndromes. Current Opinion In Gastroenterology 2000, 16: 239-250. PMID: 17023881, DOI: 10.1097/00001574-200005000-00006.Peer-Reviewed Original Research
1999
Characterization of ion transport mechanisms involved in bombesin-stimulated biliary secretion in rat cholangiocytes
Cho W, Boyer J. Characterization of ion transport mechanisms involved in bombesin-stimulated biliary secretion in rat cholangiocytes. Journal Of Hepatology 1999, 30: 1045-1051. PMID: 10406182, DOI: 10.1016/s0168-8278(99)80258-x.Peer-Reviewed Original ResearchMeSH Keywords4,4'-Diisothiocyanostilbene-2,2'-Disulfonic AcidAcetazolamideAnimalsBarium CompoundsBileBile DuctsBombesinCarbonic Anhydrase InhibitorsChloride ChannelsChloridesIn Vitro TechniquesIon TransportMaleMicroscopy, VideoNitrobenzoatesPotassium ChannelsRatsRats, Sprague-DawleyTetraethylammonium
1998
Intracellular pH regulation in bombesin-stimulated secretion in isolated bile duct units from rat liver
Cho W, Mennone A, Boyer J. Intracellular pH regulation in bombesin-stimulated secretion in isolated bile duct units from rat liver. American Journal Of Physiology 1998, 275: g1028-g1036. PMID: 9815033, DOI: 10.1152/ajpgi.1998.275.5.g1028.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntiportersBicarbonatesBile Ducts, IntrahepaticBombesinCarrier ProteinsChloride-Bicarbonate AntiportersChloridesFluoresceinsFluorescent DyesHEPESHydrogen-Ion ConcentrationIn Vitro TechniquesMaleModels, BiologicalRatsRats, Sprague-DawleySodiumSodium-Bicarbonate SymportersSodium-Hydrogen ExchangersConceptsHCO-3 secretionBile duct unitsDuct unitsAcid-extruding mechanismsEffect of bombesinRat liverCl-/HCOBombesin-stimulated secretionRegulation of intracellularBiliary secretionNormal rat liverBombesinCholangiocytesSecretionUnderlying mechanismLiverBasalPH regulationCounterregulatoryNeuropeptidesExchange activityActivity
1997
Bombesin stimulates bicarbonate secretion from rat cholangiocytes: Implications for neural regulation of bile secretion
Cho W, Mennone A, Rydberg, Boyer J. Bombesin stimulates bicarbonate secretion from rat cholangiocytes: Implications for neural regulation of bile secretion. Gastroenterology 1997, 113: 311-321. PMID: 9207292, DOI: 10.1016/s0016-5085(97)70109-4.Peer-Reviewed Original ResearchConceptsBile secretionBicarbonate secretionRat liverBile duct-ligated ratsRole of bombesinHepatocyte coupletsEffect of bombesinDose-dependent increaseDuct-ligated ratsBile duct unitsCanalicular bile secretionBile pHSite of actionBile flowSubstance PReceptor inhibitorsNeural regulationAbstractTextBombesinBiliary transportDuct unitsSecretionLiverLuminal pHRat cholangiocytes
1995
Isolation of small polarized bile duct units.
Mennone A, Alvaro D, Cho W, Boyer J. Isolation of small polarized bile duct units. Proceedings Of The National Academy Of Sciences Of The United States Of America 1995, 92: 6527-6531. PMID: 7541542, PMCID: PMC41551, DOI: 10.1073/pnas.92.14.6527.Peer-Reviewed Original ResearchMeSH Keywords1-Methyl-3-isobutylxanthine4,4'-Diisothiocyanostilbene-2,2'-Disulfonic AcidAnimalsBicarbonatesBile DuctsBucladesineChloridesCholestasisColforsinFluoresceinsGluconatesHydrogen-Ion ConcentrationKineticsLiverMaleMicroscopy, ElectronMicroscopy, VideoRatsRats, Sprague-DawleySecretinTime FactorsConceptsBile duct unitsInterlobular bile ductsBile ductDuct unitsSmall interlobular bile ductsBile duct syndromeBile duct segmentsCholestatic liver disordersCl-/HCO3- exchange activityRat liverLiver disordersPrimary siteForskolin administrationMicroM forskolinDextran 40Duct segmentsDibutyryl cAMPUseful preparationLiverSecretionForskolinImaging techniquesDuctLuminal spaceSyndrome
1992
Effects of Ca2+ agonists on cytosolic Ca2+ in isolated hepatocytes and on bile secretion in the isolated perfused rat liver
Nathanson M, Gautam A, Bruck R, Isales C, Boyer J. Effects of Ca2+ agonists on cytosolic Ca2+ in isolated hepatocytes and on bile secretion in the isolated perfused rat liver. Hepatology 1992, 15: 107-116. PMID: 1727785, DOI: 10.1002/hep.1840150119.Peer-Reviewed Original ResearchConceptsBile flowPerfusion pressureBile secretionCytosolic Ca2Rat liverProtein kinase CIonophore-induced increaseBromo-A23187Hepatic vasoconstrictionVasodilator papaverineProtein kinase C inhibitor HExtracellular Ca2Kinase CSecretionLiverVasopressinAgonist vasopressinBenzohydroquinoneEffect of Ca2HepatocytesActivate protein kinase CInhibitor HTwo-thirdsIsolated hepatocytesSensitive photoprotein aequorin
1989
Voltage-driven, taurocholate-dependent secretion in isolated hepatocyte couplets
Weinman S, Graf J, Boyer J. Voltage-driven, taurocholate-dependent secretion in isolated hepatocyte couplets. American Journal Of Physiology 1989, 256: g826-g832. PMID: 2719107, DOI: 10.1152/ajpgi.1989.256.5.g826.Peer-Reviewed Original ResearchConceptsBile secretionBile acidsSecretion rateFluid secretionIntracellular current injectionCanalicular areaHepatocyte coupletsMembrane potentialRat hepatocyte coupletsAbsence of taurocholateMicroM taurocholateFluid secretion rateBile formationSecretionCarrier-mediated transportTaurocholateLiverIntracellular voltage
1987
Mechanisms of Bile Secretion and Hepatic Transport
Boyer J. Mechanisms of Bile Secretion and Hepatic Transport. 1987, 225-252. DOI: 10.1007/978-1-4684-5404-8_12.Peer-Reviewed Original Research
1986
Mechanisms of Bile Secretion and Hepatic Transport
Boyer J. Mechanisms of Bile Secretion and Hepatic Transport. 1986, 609-636. DOI: 10.1007/978-1-4613-2097-5_35.Peer-Reviewed Original Research
1984
Isolated rat hepatocyte couplets: a primary secretory unit for electrophysiologic studies of bile secretory function.
Graf J, Gautam A, Boyer J. Isolated rat hepatocyte couplets: a primary secretory unit for electrophysiologic studies of bile secretory function. Proceedings Of The National Academy Of Sciences Of The United States Of America 1984, 81: 6516-6520. PMID: 6149546, PMCID: PMC391955, DOI: 10.1073/pnas.81.20.6516.Peer-Reviewed Original ResearchConceptsBile secretory functionElectrophysiologic studySecretory functionHepatocyte coupletsOrganic anion fluoresceinSteady-state intracellularCanalicular lumenCanalicular vacuoleInput resistanceRat liverCollagenase perfusionIntact liverLiverSecretionParacellular barrierBile canalicular lumenSecretory unitsLumenCellsJunctional pathwayElectrical driving forcePerfusionPardaxin increases solute permeability of gills and rectal gland in the dogfish shark (Squalus acanthias)
Primor N, Zadunaisky J, Murdaugh H, Boyer J, Forrest J. Pardaxin increases solute permeability of gills and rectal gland in the dogfish shark (Squalus acanthias). Comparative Biochemistry And Physiology Part C Toxicology & Pharmacology 1984, 78: 483-490. PMID: 6149101, DOI: 10.1016/0742-8413(84)90119-1.Peer-Reviewed Original Research
1970
Canalicular Bile flow and Bile Secretory Pressure Evidence for a non-bile salt dependent fraction in the isolated perfused rat liver
Boyer J, Klatskin G. Canalicular Bile flow and Bile Secretory Pressure Evidence for a non-bile salt dependent fraction in the isolated perfused rat liver. Gastroenterology 1970, 59: 853-859. PMID: 5486271, DOI: 10.1016/s0016-5085(19)33645-5.Peer-Reviewed Original Research