2002
On the natriuretic effect of verapamil: inhibition of ENaC and transepithelial sodium transport
Segal AS, Hayslett JP, Desir GV. On the natriuretic effect of verapamil: inhibition of ENaC and transepithelial sodium transport. American Journal Of Physiology. Renal Physiology 2002, 283: f765-f770. PMID: 12217868, DOI: 10.1152/ajprenal.00253.2001.Peer-Reviewed Original ResearchMeSH KeywordsAldosteroneAnimalsBiological Transport, ActiveCalcium Channel BlockersCells, CulturedDose-Response Relationship, DrugElectrophysiologyEpithelial Sodium ChannelsEpitheliumIn Vitro TechniquesInsulinKidneyKidney Tubules, CollectingNatriuresisNifedipineOocytesPatch-Clamp TechniquesSodiumSodium Channel BlockersSodium ChannelsVasopressinsVerapamilXenopus laevisConceptsNatriuretic effectDirect tubular effectAdministration of verapamilRemoval of extracellularTubular effectsTransepithelial sodium transportHemodynamic changesInhibition of ENaCSurrogate markerChannel blockersMicroM verapamilDistal tubulesA6 cellsMicroM amilorideUssing chambersVerapamilL-typeSodium transportBasolateral sideTransepithelial resistanceSignificant increaseApical sidePermeable supportsInhibitionTransepithelial
1997
Cloning and localization of a double-pore K channel, KCNK1: exclusive expression in distal nephron segments
Orias M, Velázquez H, Tung F, Lee G, Desir G. Cloning and localization of a double-pore K channel, KCNK1: exclusive expression in distal nephron segments. American Journal Of Physiology 1997, 273: f663-f666. PMID: 9362344, DOI: 10.1152/ajprenal.1997.273.4.f663.Peer-Reviewed Original ResearchConceptsThick ascending limbAscending limbK channelsCortical thick ascending limbMedullary thick ascending limbDistal nephron segmentsReverse transcription-polymerase chain reactionDistal convoluted tubuleTranscription-polymerase chain reactionDistal tubulesConvoluted tubulesProximal tubulesNephron segmentsHigh expressionNephron segment localizationK homeostasisChain reactionHuman kidney cDNATubulesSegment localizationExclusive expressionKCNK1LimbPore regionKidney cDNA
1993
Identification of a novel K-channel gene (KC22) that is highly expressed in distal tubule of rabbit kidney
Desir GV, Velazquez H. Identification of a novel K-channel gene (KC22) that is highly expressed in distal tubule of rabbit kidney. American Journal Of Physiology 1993, 264: f128-f133. PMID: 7679255, DOI: 10.1152/ajprenal.1993.264.1.f128.Peer-Reviewed Original ResearchConceptsPolymerase chain reactionRabbit kidneyKidney cortexWhole kidney cortexShaker gene familyDistal tubule cellsVoltage-gated K channelsRenal tissueDistal tubulesTubule cellsRibonuclease protectionPrimary culturesKidneyChain reactionExpression levelsK channelsCortexTubulesPartial-length sequencesAbundant isoformIsoformsKidney cDNAK channel genesImmunocytochemical characterization of the high-affinity thiazide diuretic receptor in rabbit renal cortex
Ellison DH, Biemesderfer D, Morrisey J, Lauring J, Desir GV. Immunocytochemical characterization of the high-affinity thiazide diuretic receptor in rabbit renal cortex. American Journal Of Physiology 1993, 264: f141-f148. PMID: 8430824, DOI: 10.1152/ajprenal.1993.264.1.f141.Peer-Reviewed Original ResearchConceptsThiazide diuretic receptorRenal distal tubulesDistal tubulesUrinary NaCl excretionRenal cortical membranesThick ascending limbRabbit kidney cortexApical membraneThiazide diureticsRenal cortexRabbit renal cortexCortical membranesProximal tubulesAscending limbSubpopulation of cellsNaCl excretionThiazide receptorKidney cortexIntense stainingWestern blotMonoclonal antibodiesRabbit kidneyImmunocytochemical characterizationPrincipal cellsReceptors
1991
Solubilization and partial purification of the thiazide diuretic receptor from rabbit renal cortex
Ellison D, Morrisey J, Desir G. Solubilization and partial purification of the thiazide diuretic receptor from rabbit renal cortex. Biochimica Et Biophysica Acta 1991, 1069: 241-249. PMID: 1932064, DOI: 10.1016/0005-2736(91)90131-q.Peer-Reviewed Original ResearchConceptsHigh-affinity receptorRenal cortexCortical homogenatesDistal tubulesHigh-performance liquid chromatographyDistal tubule fragmentsRenal cortical microsomesRenal distal tubulesThiazide diuretic receptorRenal cortical membranesExclusion high performance liquid chromatographyRat renal cortexRenal cortical homogenatesCortical microsomesRabbit renal cortexReceptor densityCortical membranesSize-exclusion high-performance liquid chromatographyRabbit receptorThiazide receptorCl- transport pathwaysPercoll gradient centrifugationDiuretic drugsTubule fragmentsReceptors