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
2021
Sex difference in kidney electrolyte transport III: Impact of low K intake on thiazide-sensitive cation excretion in male and female mice
Xu S, Li J, Yang L, Wang CJ, Liu T, Weinstein AM, Palmer LG, Wang T. Sex difference in kidney electrolyte transport III: Impact of low K intake on thiazide-sensitive cation excretion in male and female mice. Pflügers Archiv - European Journal Of Physiology 2021, 473: 1749-1760. PMID: 34455480, PMCID: PMC8528772, DOI: 10.1007/s00424-021-02611-5.Peer-Reviewed Original ResearchConceptsGlomerular filtration rateFemale miceUrine volumeNaCl cotransporterLow K intakeMeasurement of functionSex differencesNatriuretic responseFractional excretionK intakeTransport protein expressionFiltration rateNCC abundanceNCC expressionRenal clearanceDistal nephronLK dietCation excretionPlasma KNCC proteinNKCC2 expressionWestern blottingProtein expressionMiceFENa
2012
Regulation of glomerulotubular balance. II. Impact of angiotensin II on flow-dependent transport
Du Z, Wan L, Yan Q, Weinbaum S, Weinstein AM, Wang T. Regulation of glomerulotubular balance. II. Impact of angiotensin II on flow-dependent transport. American Journal Of Physiology. Renal Physiology 2012, 303: f1507-f1516. PMID: 22952281, PMCID: PMC3532483, DOI: 10.1152/ajprenal.00277.2012.Peer-Reviewed Original ResearchAngiotensin IIAngiotensin II Type 1 Receptor BlockersAnimalsBicarbonatesBiological TransportEnzyme InhibitorsFemaleHemostasisIn Vitro TechniquesKidney GlomerulusKidney TubulesLosartanMacrolidesMiceMice, KnockoutModels, AnimalProton-Translocating ATPasesReceptor, Angiotensin, Type 1SodiumSodium-Hydrogen Exchanger 3Sodium-Hydrogen ExchangersRegulation of glomerulotubular balance. I. Impact of dopamine on flow-dependent transport
Du Z, Yan Q, Wan L, Weinbaum S, Weinstein AM, Wang T. Regulation of glomerulotubular balance. I. Impact of dopamine on flow-dependent transport. American Journal Of Physiology. Renal Physiology 2012, 303: f386-f395. PMID: 22552936, PMCID: PMC3433864, DOI: 10.1152/ajprenal.00531.2011.Peer-Reviewed Original ResearchMeSH Keywords8-Bromo Cyclic Adenosine MonophosphateAlgorithmsAnimalsBenzazepinesBicarbonatesBiological Transport, ActiveChloridesCyclic AMP-Dependent Protein KinasesDopamineDopamine AntagonistsDopamine D2 Receptor AntagonistsFemaleIsoquinolinesKidney GlomerulusKidney TubulesKidney Tubules, ProximalMacrolidesMiceMicrovilliProton-Translocating ATPasesReceptors, Dopamine D1SodiumSulfonamidesSulpirideConceptsNa/H exchanger 3Impact of dopamineMouse proximal tubulesLuminal flowGlomerulotubular balanceCl reabsorptionProximal tubulesNa-K-ATPase activityProximal tubule reabsorptionPKA-mediated mechanismLuminal flow rateLuminal dopamineDA1 receptorsTubule reabsorptionPKA inhibitor H89Exogenous dopamineH-ATPase activityReabsorptive fluxReabsorptionDopamineNHE3 activityInhibitor H89Perfusion conditionsCoordinated modulationFlow stimulation
2010
Mechanotransduction in the renal tubule
Weinbaum S, Duan Y, Satlin LM, Wang T, Weinstein AM. Mechanotransduction in the renal tubule. American Journal Of Physiology. Renal Physiology 2010, 299: f1220-f1236. PMID: 20810611, PMCID: PMC3006307, DOI: 10.1152/ajprenal.00453.2010.Peer-Reviewed Original Research
2008
Female ROMK null mice manifest more severe Bartter II phenotype on renal function and higher PGE2 production
Yan Q, Yang X, Cantone A, Giebisch G, Hebert S, Wang T. Female ROMK null mice manifest more severe Bartter II phenotype on renal function and higher PGE2 production. AJP Regulatory Integrative And Comparative Physiology 2008, 295: r997-r1004. PMID: 18579648, PMCID: PMC2536865, DOI: 10.1152/ajpregu.00051.2007.Peer-Reviewed Original ResearchConceptsROMK null miceFemale null miceNull miceRenal functionSurvival rateExtent of hydronephrosisDegree of hydronephrosisSeverity of hydronephrosisHigher PGE2 productionHydronephrotic miceLower GFRSyndrome pathophysiologyNg/24 hAcid-base parametersFemale micePGE2 productionHydronephrosisHigher survival rateMiceExcretionSignificant differencesUrinaryMalesSexPossible mechanismMouse model of type II Bartter's syndrome. I. Upregulation of thiazide-sensitive Na-Cl cotransport activity
Cantone A, Yang X, Yan Q, Giebisch G, Hebert SC, Wang T. Mouse model of type II Bartter's syndrome. I. Upregulation of thiazide-sensitive Na-Cl cotransport activity. American Journal Of Physiology. Renal Physiology 2008, 294: f1366-f1372. PMID: 18385266, DOI: 10.1152/ajprenal.00608.2007.Peer-Reviewed Original ResearchMeSH KeywordsAdaptation, PhysiologicalAmilorideAnimalsBartter SyndromeCation Transport ProteinsChloridesDisease Models, AnimalDiureticsEpithelial Sodium ChannelsFemaleFurosemideGlomerular Filtration RateHydrochlorothiazideLoop of HenleMaleMiceMice, Mutant StrainsPotassium Channels, Inwardly RectifyingPregnancySodiumSodium-Potassium-Chloride SymportersSolute Carrier Family 12, Member 1Up-RegulationConceptsThick ascending limbExcretion rateWhole kidney glomerular filtration rateKidney glomerular filtration rateFractional excretion rateFurosemide-induced incrementsGlomerular filtration rateType II Bartter's syndromeHyperprostaglandin E syndromeEffect of furosemideDistal nephron segmentsDistal convoluted tubuleExaggerated natriuresisROMK null miceNa excretionFiltration rateRenal saltAbsolute excretionBartter's syndromeE syndromeMouse modelClearance studiesConvoluted tubulesAscending limbNull miceMouse model of type II Bartter's syndrome. II. Altered expression of renal sodium- and water-transporting proteins
Wagner CA, Loffing-Cueni D, Yan Q, Schulz N, Fakitsas P, Carrel M, Wang T, Verrey F, Geibel JP, Giebisch G, Hebert SC, Loffing J. Mouse model of type II Bartter's syndrome. II. Altered expression of renal sodium- and water-transporting proteins. American Journal Of Physiology. Renal Physiology 2008, 294: f1373-f1380. PMID: 18322017, DOI: 10.1152/ajprenal.00613.2007.Peer-Reviewed Original ResearchMeSH KeywordsAdaptation, PhysiologicalAnimalsBartter SyndromeCarrier ProteinsCation Transport ProteinsDinoprostoneDisease Models, AnimalEpithelial Sodium ChannelsKidney Tubules, DistalKidney Tubules, ProximalLoop of HenleMiceMice, Mutant StrainsPotassium Channels, Inwardly RectifyingReverse Transcriptase Polymerase Chain ReactionSodiumSodium-Hydrogen Exchanger 3Sodium-Hydrogen ExchangersSodium-Phosphate Cotransporter Proteins, Type IIaSodium-Potassium-Chloride SymportersSolute Carrier Family 12, Member 1Up-RegulationWaterConceptsThick ascending limbBartter's syndromeBartter-like phenotypeType II Bartter's syndromeWild-type miceAntenatal Bartter syndromeWild-type littermatesROMK null micePlasma aldosteroneMaternal polyhydramniosRenal sodiumVolume depletionRenal tubulopathyMouse modelSemiquantitative immunoblottingProximal tubulesAscending limbKidney homogenatesSyndromeHenle's loopNull miceDCT cellsWater transport proteinsCompensatory mechanismsMice
2005
Axial flow modulates proximal tubule NHE3 and H-ATPase activities by changing microvillus bending moments
Du Z, Yan Q, Duan Y, Weinbaum S, Weinstein AM, Wang T. Axial flow modulates proximal tubule NHE3 and H-ATPase activities by changing microvillus bending moments. American Journal Of Physiology. Renal Physiology 2005, 290: f289-f296. PMID: 16144961, DOI: 10.1152/ajprenal.00255.2005.Peer-Reviewed Original Research
2004
Mechanosensory function of microvilli of the kidney proximal tubule
Du Z, Duan Y, Yan Q, Weinstein AM, Weinbaum S, Wang T. Mechanosensory function of microvilli of the kidney proximal tubule. Proceedings Of The National Academy Of Sciences Of The United States Of America 2004, 101: 13068-13073. PMID: 15319475, PMCID: PMC516518, DOI: 10.1073/pnas.0405179101.Peer-Reviewed Original Research
2003
Intracellular Na concentration and Rb uptake in proximal convoluted tubule cells and abundance of Na/K-ATPase α1-subunit in NHE3−/− mice
Beck F, Neuhofer W, Dörge A, Giebisch G, Wang T. Intracellular Na concentration and Rb uptake in proximal convoluted tubule cells and abundance of Na/K-ATPase α1-subunit in NHE3−/− mice. Pflügers Archiv - European Journal Of Physiology 2003, 446: 100-105. PMID: 12690468, DOI: 10.1007/s00424-002-1001-z.Peer-Reviewed Original ResearchConceptsIntracellular Na concentrationNa/K-ATPaseΑ1 subunitTubule cellsProximal convoluted tubule cellsDistal convoluted tubuleWild-type miceNa/K-ATPase activityPCT cellsConvoluted tubule cellsIntracellular Cl- concentrationK-ATPaseWestern blot analysisK-ATPase activityNa concentrationRenal cortexCell Na concentrationConvoluted tubulesNa/K-ATPase α1 subunitNa/HNHE3 deficiencyK-ATPase α1-subunitMiceFluid absorption
2000
Defective fluid and HCO3 − absorption in proximal tubule of neuronal nitric oxide synthase-knockout mice
Wang T, Inglis F, Kalb R. Defective fluid and HCO3 − absorption in proximal tubule of neuronal nitric oxide synthase-knockout mice. American Journal Of Physiology. Renal Physiology 2000, 279: f518-f524. PMID: 10966931, DOI: 10.1152/ajprenal.2000.279.3.f518.Peer-Reviewed Original ResearchMeSH KeywordsAcid-Base EquilibriumAnimalsBicarbonatesBiological TransportBlood Gas AnalysisBody FluidsElectrolytesEnzyme InhibitorsInjections, IntravenousKidney Tubules, ProximalMiceMice, Inbred C57BLMice, KnockoutNG-Nitroarginine Methyl EsterNitric Oxide SynthaseNitric Oxide Synthase Type IPotassiumSodiumConceptsWild-type miceNNOS knockout miceL-NAMEProximal tubulesBlood pressureMetabolic acidosisNeuronal nitric oxide synthase knockout miceNitric oxide synthase knockout miceAbsorption of fluidFluid absorptionNeuronal nitric oxide synthaseRenal clearance techniquesMean blood pressureSignificant metabolic acidosisSynthase knockout miceMonomethyl-L-arginine methyl esterNitric oxide synthaseWild-type control animalsProximal tubule transportLuminal perfusion solutionAcid-base balanceIntravenous bolusUrinary excretionUrine volumeClearance technique
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 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
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
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 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