2023
High dietary K+ intake inhibits proximal tubule transport
Wang T, Liu T, Xu S, Frindt G, Weinstein A, Palmer L. High dietary K+ intake inhibits proximal tubule transport. American Journal Of Physiology. Renal Physiology 2023, 325: f224-f234. PMID: 37318989, PMCID: PMC10396284, DOI: 10.1152/ajprenal.00013.2023.Peer-Reviewed Original ResearchConceptsGlomerular filtration rateFree-flow micropunctureUrine volumeFractional excretion of Na<sup>+</sup>Proximal tubulesFiltration rateFractional NaNephron segmentsExcretion of Na<sup>+</sup>Dietary K<sup>+</sup>NHE3 protein expressionExchanger isoform 3Increased urine volumeIncreased fractional excretionVolume reabsorptionAbsolute NaKidney functionProtein expressionIsoform 3PT transportAnesthetized animalsReabsorptionWestern blottingRatsExcretion
2022
Regulation of glomerulotubular balance. IV. Implication of aquaporin 1 in flow-dependent proximal tubule transport and cell volume
Du Z, Yan Q, Shen E, Weinstein A, Wang T. Regulation of glomerulotubular balance. IV. Implication of aquaporin 1 in flow-dependent proximal tubule transport and cell volume. American Journal Of Physiology. Renal Physiology 2022, 323: f642-f653. PMID: 36108052, PMCID: PMC9705020, DOI: 10.1152/ajprenal.00167.2022.Peer-Reviewed Original ResearchConceptsWater channel aquaporin-1Proximal tubulesKO miceAquaporin-1Water reabsorptionMouse PTNo significant differenceWild-typeTight junctionsRat kidneyAquaporin-1 knockoutSignificant differenceAcid-base parametersKidney proximal tubulesRenal clearance experimentsWT miceKnockout miceUrine flowFlow stimulationFluid absorptionUrine pHClearance experimentsMouse kidneyMiceRats
2007
NHE3 phosphorylation at serines 552 and 605 does not directly affect NHE3 activity
Kocinsky HS, Dynia DW, Wang T, Aronson PS. NHE3 phosphorylation at serines 552 and 605 does not directly affect NHE3 activity. American Journal Of Physiology. Renal Physiology 2007, 293: f212-f218. PMID: 17409282, DOI: 10.1152/ajprenal.00042.2007.Peer-Reviewed Original ResearchMeSH Keywords1-Methyl-3-isobutylxanthineAnimalsCells, CulturedColforsinCyclic AMP-Dependent Protein KinasesElectrophoresis, Polyacrylamide GelKidneyKidney Tubules, ProximalMaleMicrovilliParathyroid HormonePhosphodiesterase InhibitorsPhosphorylationRatsRats, Sprague-DawleySerineSodiumSodium RadioisotopesSodium-Hydrogen Exchanger 3Sodium-Hydrogen ExchangersStimulation, ChemicalConceptsSerine 552NHE3 phosphorylationNHE3 activityMicrovillar membrane vesiclesPhosphorylation of NHE3Direct phosphorylationPhosphospecific antibodiesSprague-Dawley ratsExchanger type 3PKA activationMembrane vesiclesSite-specific changesPhosphorylationTransport activityOpossum kidney cellsParathyroid hormoneIntravenous infusionRat modelExchange activityKidney cellsOKP cellsNHE3 inhibitionPKACell modelExact role
2003
Expression of ENaC and serum- and glucocorticoid-induced kinase 1 in the rat intestinal epithelium
Coric T, Hernandez N, de la Rosa D, Shao D, Wang T, Canessa CM. Expression of ENaC and serum- and glucocorticoid-induced kinase 1 in the rat intestinal epithelium. AJP Gastrointestinal And Liver Physiology 2003, 286: g663-g670. PMID: 14630642, DOI: 10.1152/ajpgi.00364.2003.Peer-Reviewed Original ResearchMeSH KeywordsAldosteroneAnimalsAntibodies, BlockingAntibody SpecificityBlotting, NorthernCHO CellsColonCricetinaeDNA, ComplementaryEnzyme InductionEpithelial Sodium ChannelsEpitheliumFluorescent Antibody TechniqueImmediate-Early ProteinsIntestinal MucosaNuclear ProteinsPlasmidsProtein Serine-Threonine KinasesRatsRNA, MessengerSignal TransductionSodium ChannelsConceptsDistal colonGlucocorticoid-induced kinase 1Intestinal epitheliumConcentrations of aldosteroneSubunits of ENaCSodium channel activityExpression of ENaCRat intestinal epitheliumKinase 1Aldosterone levelsAldosterone-dependent mannerSingle doseSodium depletionChronic increaseDistal tubulesControl animalsAldosteroneAldosterone inductionRat intestineBasal conditionsColonSodium transportersEpitheliumSites of expressionSGK1Distribution and regulation of expression of serum‐ and glucocorticoid‐induced kinase‐1 in the rat kidney
de la Rosa D, Coric T, Todorovic N, Shao D, Wang T, Canessa C. Distribution and regulation of expression of serum‐ and glucocorticoid‐induced kinase‐1 in the rat kidney. The Journal Of Physiology 2003, 551: 455-466. PMID: 12816971, PMCID: PMC2343216, DOI: 10.1113/jphysiol.2003.042903.Peer-Reviewed Original ResearchMeSH KeywordsAdrenalectomyAldosteroneAnimalsAntibodiesAntibody SpecificityBlotting, NorthernBlotting, WesternCells, CulturedDNA, ComplementaryElectrophoresis, Polyacrylamide GelEpithelial CellsGene Expression Regulation, EnzymologicGlucocorticoidsImmediate-Early ProteinsImmunoblottingIn Vitro TechniquesIsoenzymesKidneyKidney TubulesMicroscopy, FluorescenceNuclear ProteinsProtein Serine-Threonine KinasesRatsRats, Sprague-DawleyRNASubcellular FractionsTransfectionConceptsGlucocorticoid-induced kinase 1Kinase 1Ion channelsRegulation of expressionConstitutive high expressionBasolateral membraneRenal epithelial cellsSubcellular localizationLevel of expressionRegulation of levelsEpithelial ion channelsSGK1 proteinMammalian kidneyApical membraneDirect interactionSGK1Epithelial cellsWestern blottingHigh expressionExpressionExpression of SGK1ProteinRat kidneyTransportersPhysiological changesInhibition of heme oxygenase decreases sodium and fluid absorption in the loop of Henle
Wang T, Sterling H, Shao W, Yan Q, Bailey M, Giebisch G, Wang W. Inhibition of heme oxygenase decreases sodium and fluid absorption in the loop of Henle. American Journal Of Physiology. Renal Physiology 2003, 285: f484-f490. PMID: 12890663, DOI: 10.1152/ajprenal.00135.2003.Peer-Reviewed Original ResearchConceptsLoop of HenleHigh K+K+ channelsApical 70-pS K+ channelRegulation of Na+ transportNa+ transportFluid absorptionApical K+ channelsIn vivo microperfusionInhibition of HORenal sodium excretionGlomerular filtration rateHO-2 expressionInhibitor of HORenal clearance studiesHK ratsHO-2K+ recyclingNa+ absorptionUrinary Na+Sodium excretionChromium mesoporphyrinRat chowWestern blot analysisFiltration rate
2001
Role of NHE isoforms in mediating bicarbonate reabsorption along the nephron
Wang T, Hropot M, Aronson P, Giebisch G. Role of NHE isoforms in mediating bicarbonate reabsorption along the nephron. American Journal Of Physiology. Renal Physiology 2001, 281: f1117-f1122. PMID: 11704563, DOI: 10.1152/ajprenal.2001.281.6.f1117.Peer-Reviewed Original ResearchConceptsLoop of HenleHOE 694Proximal tubulesAddition of ethylisopropylamilorideDistal convoluted tubuleBicarbonate reabsorptionConvoluted tubulesSitu microperfusionRat kidneySignificant inhibitionNHE isoformsHenlePredominant isoformTubulesNHE3Functional roleInhibitionNHE2Apical membraneIsoformsApical isoformKidneyMicroperfusionEthylisopropylamilorideNephron
1998
Effect of metabolic acidosis on NaCl transport in the proximal tubule
Wang T, Egbert A, Aronson P, Giebisch G. Effect of metabolic acidosis on NaCl transport in the proximal tubule. American Journal Of Physiology 1998, 274: f1015-f1019. PMID: 9841491, DOI: 10.1152/ajprenal.1998.274.6.f1015.Peer-Reviewed Original ResearchConceptsMetabolic acidosisProximal tubulesNaCl reabsorptionRat proximal tubule segmentsAcidotic ratsNaCl transportNaCl absorptionLate proximal tubuleProximal tubule segmentsControl ratsCapillary perfusateBicarbonate absorptionNephron segmentsAcidosisTubule segmentsRatsRecent evidenceJclTubulesFormate exchangeReabsorptionDifferential regulation
1997
Nitric oxide regulates HCO3- and Na+ transport by a cGMP-mediated mechanism in the kidney proximal tubule
Wang T. Nitric oxide regulates HCO3- and Na+ transport by a cGMP-mediated mechanism in the kidney proximal tubule. American Journal Of Physiology 1997, 272: f242-f248. PMID: 9124402, DOI: 10.1152/ajprenal.1997.272.2.f242.Peer-Reviewed Original ResearchConceptsKidney proximal tubulesS-nitroso-N-acetylpenicillamineSodium nitroprussideProximal tubulesL-NAMEGuanylate cyclase inhibitor methyleneN(G)-nitro-L-arginine methyl esterBlood pressureNitric oxideNa+ transportStimulatory effect of sodium nitroprussideN(G)-nitro-L-arginineNitric oxide synthase inhibitorCGMP-mediated mechanismAddition of L-NAMEIncreased urine flow rateGlomerular filtration rateEffects of sodium nitroprussideMean blood pressureUrine flow rateEffects of nitric oxideRenal excretion of NaExcretion of NaRenal hemodynamicsEffects of NO
1996
Mechanisms of stimulation of proximal tubule chloride transport by formate and oxalate
Wang T, Egbert AL, Abbiati T, Aronson PS, Giebisch G. Mechanisms of stimulation of proximal tubule chloride transport by formate and oxalate. American Journal Of Physiology 1996, 271: f446-f450. PMID: 8770178, DOI: 10.1152/ajprenal.1996.271.2.f446.Peer-Reviewed Original ResearchEffects of angiotensin II on electrolyte transport in the early and late distal tubule in rat kidney
Wang T, Giebisch G. Effects of angiotensin II on electrolyte transport in the early and late distal tubule in rat kidney. American Journal Of Physiology 1996, 271: f143-f149. PMID: 8760255, DOI: 10.1152/ajprenal.1996.271.1.f143.Peer-Reviewed Original ResearchConceptsEffects of Ang IIAng IILate distal tubuleDistal tubulesDecreased JvAngiotensin IIHigher dose of Ang IILow doses of angiotensin IILuminal application of amilorideAmiloride-sensitive Na+ transportDose of Ang IIRat kidneyHCO3- transportAddition of ANG IIDoses of angiotensin IIEffects of angiotensin IIApplication of amilorideStimulate Na+/H+ exchangeProximal tubules of rat kidneyDistal convoluted tubuleLuminal administrationNa+ channelsNa+/H+ exchangeDistal nephronIntravenous infusion
1995
Effects of chronic hyperfiltration on proximal tubule bicarbonate transport and cell electrolytes
Ohno A, Beck F, Pfaller W, Giebisch G, Wang T. Effects of chronic hyperfiltration on proximal tubule bicarbonate transport and cell electrolytes. Kidney International 1995, 48: 712-721. PMID: 7474656, DOI: 10.1038/ki.1995.342.Peer-Reviewed Original ResearchConceptsK-ATPase activityProximal tubulesUNX ratsNa/H exchangeBicarbonate absorptionBicarbonate transportResponse to unilateral nephrectomyNa,K-ATPase activityBasolateral ion transportStimulation of bicarbonateBasolateral NaChronic hyperfiltrationMaximal transport rateRemnant kidneyUnilateral nephrectomyCortical tubulesFiltration rateRenal clearanceUNXBicarbonate levelsK-ATPaseRubidium uptakeH secretionFluid absorptionCell ion concentrationsEffects of a novel KATP channel blocker on renal tubule function and K channel activity.
Wang T, Wang W, Klein-Robbenhaar G, Giebisch G. Effects of a novel KATP channel blocker on renal tubule function and K channel activity. Journal Of Pharmacology And Experimental Therapeutics 1995, 273: 1382-9. PMID: 7791111.Peer-Reviewed Original ResearchConceptsCortical collecting tubuleKATP channel blockerChannel blockersPotassium recyclingPotassium secretionAscending limbATP-sensitive potassium channelsActivation of KATPApical potassium conductanceReduced potassium secretionK channel activityRenal tubule functionLoop of HenleModulate NaCl reabsorptionPotassium conductanceSodium reabsorptionK secretionApical membranePrincipal cellsTubule functionPotassium channelsKATPBlockersReabsorptionStimulation of chloride transport by cAMP in rat proximal tubules
Wang T, Segal AS, Giebisch G, Aronson PS. Stimulation of chloride transport by cAMP in rat proximal tubules. American Journal Of Physiology 1995, 268: f204-f210. PMID: 7864157, DOI: 10.1152/ajprenal.1995.268.2.f204.Peer-Reviewed Original ResearchConceptsRat proximal tubuleProximal tubulesDibutyryl cAMPCapillary perfusateLate proximal tubuleProximal tubule cellsCl- channel blockerCl- channelsTranscellular Cl absorptionAddition of forskolinLuminal DIDSSensitive Cl- channelBasolateral membraneLuminal perfusateTubule cellsCAMP productionFluid absorptionCl absorptionMM ClPerfusateJclRecent evidenceLuminal membraneTubulesEffect of cAMPEffects of Glyburide on Renal Tubule Transport and Potassium-Channel Activity
Wang T, Wang W, Klein-Robbenhaar G, Giebisch G. Effects of Glyburide on Renal Tubule Transport and Potassium-Channel Activity. Kidney & Blood Pressure Research 1995, 18: 169-182. PMID: 7481068, DOI: 10.1159/000173914.Peer-Reviewed Original ResearchConceptsK channelsApical membraneInhibition of K secretionApical K channelsRenal tubule transportCortical collecting tubuleK channel activityPatch-clamp techniquePotassium channel activityEffect of glyburideTubule transportK secretionRenal clearanceElectrolyte excretionPotassium channelsTransport of NaAscending limbGlyburideInhibit transportK recyclingKaliuresisHenleMicroperfusionTubulesExcretion
1993
Effects of formate and oxalate on chloride absorption in rat distal tubule
Wang T, Agulian SK, Giebisch G, Aronson PS. Effects of formate and oxalate on chloride absorption in rat distal tubule. American Journal Of Physiology 1993, 264: f730-f736. PMID: 8386473, DOI: 10.1152/ajprenal.1993.264.4.f730.Peer-Reviewed Original Research
1992
Effects of formate and oxalate on volume absorption in rat proximal tubule
Wang T, Giebisch G, Aronson PS. Effects of formate and oxalate on volume absorption in rat proximal tubule. American Journal Of Physiology 1992, 263: f37-f42. PMID: 1636743, DOI: 10.1152/ajprenal.1992.263.1.f37.Peer-Reviewed Original ResearchConceptsLuminal perfusateProximal tubulesCapillary perfusateLate proximal tubuleRat proximal tubuleHCO3- Ringer's solutionPhysiological rangePeritubular capillariesChannel blockersStandard Ringer solutionPerfusateFluid absorptionStimulatory effectNaCl absorptionRinger's solutionTubulesEffect of formateBlockers
1991
The role of phosphoinositide turnover in mediating the biphasic effect of angiotensin II on renal tubular transport.
Wang T, Chan Y. The role of phosphoinositide turnover in mediating the biphasic effect of angiotensin II on renal tubular transport. Journal Of Pharmacology And Experimental Therapeutics 1991, 256: 309-17. PMID: 1846421.Peer-Reviewed Original ResearchMeSH Keywords1-(5-Isoquinolinesulfonyl)-2-MethylpiperazineAngiotensin IIAnimalsBicarbonatesBiological TransportCalcium Channel BlockersDose-Response Relationship, DrugGallic AcidIsoquinolinesKidney Tubules, ProximalMalePerfusionPhosphatidylinositolsPiperazinesProtein Kinase InhibitorsRatsRats, Inbred StrainsSignal TransductionSodiumTetradecanoylphorbol AcetateConceptsEffects of Ang IIProximal convoluted tubulesAng IITMB-8Biphasic effectAngiotensin IISodium transportStimulatory effect of Ang IIPhosphoinositide turnoverN-diethylamino)-octyl-3,4,5-trimethoxybenzoateDose-dependent biphasic effectEffects of angiotensin IIRat proximal convoluted tubuleIntracellular calcium mobilizationRenal tubular transportOriginal perfusatePerfusion in vivoIntracellular calciumNa+/H+ exchangeCalcium mobilizationJHCO3Fluid reabsorptionConvoluted tubulesLuminal perfusionRat kidney
1990
Mechanism of angiotensin II action on proximal tubular transport.
Wang T, Chan Y. Mechanism of angiotensin II action on proximal tubular transport. Journal Of Pharmacology And Experimental Therapeutics 1990, 252: 689-95. PMID: 2313594.Peer-Reviewed Original ResearchConceptsBeta-phorbol-12-myristate-13-acetateAng II actionAng IIFluid reabsorptionLow doses of angiotensin IINa-H exchange mechanismPhosphoinositide turnoverLuminal perfusionDoses of angiotensin IIAng II antagonistRat proximal tubulesProximal tubular transportAngiotensin II actionAction of angiotensinOriginal perfusatePerfusion in vivoApical membraneProximal tubulesBicarbonate absorptionAngiotensin IIJHCO3Low dosesApical sideNa-HAng
1989
Neural control of distal tubular bicarbonate and fluid transport
Wang T, Chan Y. Neural control of distal tubular bicarbonate and fluid transport. American Journal Of Physiology 1989, 257: f72-f76. PMID: 2750926, DOI: 10.1152/ajprenal.1989.257.1.f72.Peer-Reviewed Original ResearchConceptsDistal convoluted tubuleConvoluted tubulesDistal tubulesRate of bicarbonate absorptionRenal nerve activityLate distal tubuleEarly distal tubuleTubular reabsorption of bicarbonateEffects of denervationReabsorption of bicarbonateRate of fluid absorptionNerve activityBicarbonate absorptionSham denervationElectrolyte excretionFluid reabsorptionDenervated kidneysReabsorb bicarbonateJHCO3DenervationFluid absorptionNeural regulationVolume markerTubulesMicroperfusion method