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 micropunctureFiltration rateUrine volumeFractional NaNephron segmentsOverall kidney functionProximal tubule transportProximal tubule functionNHE3 protein expressionExchanger isoform 3HK animalsKCl dietFraction excretionKidney functionHigh dietaryTubule functionKidney microsomesTubule transportAnesthetized animalsProximal tubulesVolume reabsorptionExcretionWestern blotControl diet
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 ResearchConceptsKO miceProximal tubulesMouse proximal tubulesWater reabsorptionAcid-base parametersKnockout miceAquaporin 1 knockout miceAquaporin-1Rat kidneyRenal clearance experimentsProximal tubule transportWater channel aquaporin-1Significant differencesHigh urine flowRat proximal tubuleKidney proximal tubulesWT miceUrine flowClearance experimentsGlomerulotubular balanceBlood pHTubule transportAQP1 knockout miceMiceFluid absorption
2007
Flow-dependent transport in a mathematical model of rat proximal tubule
Weinstein A, Weinbaum S, Duan Y, Du Z, Yan Q, Wang T. Flow-dependent transport in a mathematical model of rat proximal tubule. American Journal Of Physiology. Renal Physiology 2007, 292: f1164-f1181. PMID: 17213461, DOI: 10.1152/ajprenal.00392.2006.Peer-Reviewed Original Research
2006
Low Na intake suppresses expression of CYP2C23 and arachidonic acid-induced inhibition of ENaC
Sun P, Lin D, Wang T, Babilonia E, Wang Z, Jin Y, Kemp R, Nasjletti A, Wang W. Low Na intake suppresses expression of CYP2C23 and arachidonic acid-induced inhibition of ENaC. American Journal Of Physiology. Renal Physiology 2006, 291: f1192-f1200. PMID: 16849695, DOI: 10.1152/ajprenal.00112.2006.Peer-Reviewed Original ResearchMeSH Keywords8,11,14-Eicosatrienoic AcidAnimalsArachidonic AcidCytochrome P-450 CYP2J2Cytochrome P-450 Enzyme SystemEpithelial Sodium ChannelsFemaleIon Channel GatingKidney Tubules, CollectingMaleMembrane PotentialsPatch-Clamp TechniquesRatsRats, Sprague-DawleySodium, DietarySpecific Pathogen-Free OrganismsConceptsExpression of CYP2C23Thick ascending limbMS-PPOHArachidonic acidEpoxyeicosatrienoic acidsDistal nephronNa absorptionInhibitory effectArachidonic acid-induced inhibitionHigh Na dietNa-deficient dietNa transportMicroM arachidonic acidEpithelial Na channelTamm-Horsfall proteinPatch-clamp studiesCortical CDCYP epoxygenaseAcid-induced inhibitionActivity of ENaCNa dietControl ratsRenal cortexPositive tubulesCYP2C23
2003
Distribution 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 changes
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 ResearchConceptsSodium nitroprussideProximal tubulesKidney proximal tubulesBlood pressureL-NAMENitric oxideNitro-L-arginine methyl esterNitric oxide synthase inhibitorGlomerular filtration rateOxide synthase inhibitorGuanylate cyclase inhibitorUrine flow rateMicroM sodium nitroprussideRenal hemodynamicsFiltration rateRenal excretionRenal clearanceSynthase inhibitorCyclase inhibitorLuminal perfusateRat kidneyMicroperfusion techniqueStimulatory effectSimilar stimulationCyclic monophosphate
1996
Effects 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 ResearchConceptsLate distal tubuleEarly distal tubuleAng IIDistal tubulesRat kidneyAng II receptor antagonistsAngiotensin II stimulatesAngiotensin receptor blockersII receptor antagonistsInitial collecting tubuleLuminal administrationCortical nephronsAngiotensin IIIntravenous infusionReceptor antagonistTubular perfusateDistal nephronLuminal applicationCollecting tubuleProximal tubulesSeparate perfusionHigh dosesLow dosesHormone effectsNephron segments
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 ResearchConceptsNa/H exchangeProximal tubulesUNX ratsK-ATPase activityBicarbonate absorptionBicarbonate transportChronic hyperfiltrationRemnant kidneyUnilateral nephrectomyFiltration rateCortical tubulesRenal clearanceBicarbonate levelsH secretionFluid absorptionMaximal transport rateBasolateral ion transportCompensatory responseMarked stimulationRubidium uptakeSimilar stimulationCell ion concentrationsBasolateral NaTubulesUNXEffects 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 ResearchConceptsKATP channel blockerLoop of HenleCortical collecting tubuleThick ascending limbPotassium secretionChannel blockersCollecting tubuleAscending limbPotassium recyclingRenal tubule functionK channel activitySodium reabsorptionTubule functionCl reabsorptionK secretionPotassium conductanceApical potassium conductancePrincipal cellsSecretionChannel activityBlockersHenleReabsorptionLimbRecent studiesEffects 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 ResearchConceptsThick ascending limbRenal tubule transportEffects of glyburideCortical collecting tubuleK channel activityPatch-clamp techniqueApical K channelsPotassium channel activityElectrolyte excretionRenal clearanceK secretionTubule transportCollecting tubuleAscending limbGlyburideApical membraneK channelsK recyclingTransport of NaKaliuresis
1993
Renal bicarbonate reabsorption in the rat. IV. Bicarbonate transport mechanisms in the early and late distal tubule.
Wang T, Malnic G, Giebisch G, Chan Y. Renal bicarbonate reabsorption in the rat. IV. Bicarbonate transport mechanisms in the early and late distal tubule. Journal Of Clinical Investigation 1993, 91: 2776-2784. PMID: 8390489, PMCID: PMC443344, DOI: 10.1172/jci116519.Peer-Reviewed Original ResearchConceptsLate distal tubuleEarly distal tubuleDistal tubulesBicarbonate absorptionTubule segmentsFluid absorptionBicarbonate transportLuminal bicarbonate concentrationNet bicarbonate transportRenal bicarbonate reabsorptionLow K dietDistal tubule segmentsBicarbonate concentrationK-ATPase inhibitorPmol/minK dietBicarbonate secretionMicroperfusion experimentsBicarbonate reabsorptionH-ATPaseTubulesBafilomycin A1High rateRatsATPase inhibitor
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 AcetateConceptsM ANG IIAng IIBiphasic effectAngiotensin IIM TMBDose-dependent biphasic effectSodium transportPhosphoinositide turnoverIntracellular calcium mobilizationRenal tubular transportOriginal perfusateRat PCTLuminal perfusionCalcium mobilizationTubular transportFluid reabsorptionRat kidneyStimulatory effectJHCO3Total CO2 changesVolume markerRinger's solutionPossible roleCritical rolePrevious studies
1990
Time- and dose-dependent effects of protein kinase C on proximal bicarbonate transport
Wang T, Chan Y. Time- and dose-dependent effects of protein kinase C on proximal bicarbonate transport. The Journal Of Membrane Biology 1990, 117: 131-139. PMID: 2120446, DOI: 10.1007/bf01868680.Peer-Reviewed Original ResearchConceptsFluid reabsorptionProtein kinase CDose-dependent effectKinase CDose-response natureOriginal perfusatePerfusion timeΒ-phorbolCapillary perfusionLuminal perfusionPCT transportMaximal effectRenal tubulesBicarbonate absorptionRat kidneyFluid absorptionTotal CO2 changesBrush border membraneBasolateral sideTime-dependent effectsDose responseEIPAAmilorideM PMALuminal sideCholinergic effect on rat proximal convoluted tubule
Wang T, Chan Y. Cholinergic effect on rat proximal convoluted tubule. Pflügers Archiv - European Journal Of Physiology 1990, 415: 533-539. PMID: 2109302, DOI: 10.1007/bf02583503.Peer-Reviewed Original ResearchConceptsProximal convoluted tubulesPCT transportCholinergic effectsCholinergic receptorsCapillary perfusateInhibitory effectCarbachol-induced effectsFunctional cholinergic receptorsProximal tubular absorptionAddition of carbacholBicarbonate Ringer's solutionRenal functionTubular absorptionCholinergic agentsPeritubular capillariesRadioactive inulinSimultaneous perfusionCalcium influxHigh doseConvoluted tubulesCarbacholIonophore ABicarbonate absorptionFluid absorptionBasolateral sideMechanism 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 ResearchConceptsAng II actionFluid reabsorptionAng IILuminal perfusionAng II interactsAction of angiotensinAng II antagonistAngiotensin II actionM ANG IIPhosphoinositide turnoverProximal tubular transportRat proximal tubuleNa-H exchange mechanismOriginal perfusateRat PCTAngiotensin IIII antagonistLow dosePCT transportTubular transportProximal tubulesBicarbonate absorptionM amilorideStimulatory effectTotal CO2 changes
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 tubulesRenal nerve activityProximal tubular reabsorptionEarly distal tubuleEffects of denervationLate distal tubuleDenervated kidneysReabsorb bicarbonateSham denervationNerve activityElectrolyte excretionTubular reabsorptionNeural regulationDenervationFluid reabsorptionBicarbonate absorptionFluid absorptionFluid samplesNeural controlVolume markerMicroperfusion methodTubulesBicarbonate concentrationJHCO3Reabsorption