1993
Chronic regulation of the Na/H antiporter.
Alpern RJ, Yamaji Y, Cano A, Horie S, Miller RT, Moe OW, Preisig PA. Chronic regulation of the Na/H antiporter. Translational Research 1993, 122: 137-40. PMID: 8393472.Peer-Reviewed Original ResearchConceptsNa/H antiporter activityNa/H antiporterChronic regulationH antiporterAcute inhibitory effectRabbit proximal tubule cellsAcid-induced increaseProximal tubule cellsOpossum kidney cellsMRNA abundanceProtein kinase AChronic decreaseAntiporter activityChronic studiesChronic activationTubule cellsImmediate early genesIntact animalsKinase AInhibitory effectProtein synthesisNonrenal cellsPrimary culturesC-fosExtracellular fluid
1990
Preincubation in acid medium increases Na/H antiporter activity in cultured renal proximal tubule cells.
Horie S, Moe O, Tejedor A, Alpern RJ. Preincubation in acid medium increases Na/H antiporter activity in cultured renal proximal tubule cells. Proceedings Of The National Academy Of Sciences Of The United States Of America 1990, 87: 4742-4745. PMID: 2162055, PMCID: PMC54193, DOI: 10.1073/pnas.87.12.4742.Peer-Reviewed Original ResearchConceptsNa/H antiporter activityProximal tubule cellsTubule cellsCultured renal proximal tubule cellsCultured proximal tubule cellsRenal proximal tubule cellsPreincubation of fibroblastsExtracellular fluidAntiporter activityChronic acidosisAcidotic environmentCO2/HCO3Small inhibitionPreincubationPreincubation mediumAddition of cycloheximideCell acidificationAcid preincubationPresent studyProtein synthesisCellsAcidosisActivityEpithelium
1987
Basolateral membrane Cl/HCO3 exchange in the rat proximal convoluted tubule. Na-dependent and -independent modes.
Alpern RJ, Chambers M. Basolateral membrane Cl/HCO3 exchange in the rat proximal convoluted tubule. Na-dependent and -independent modes. The Journal Of General Physiology 1987, 89: 581-598. PMID: 2953859, PMCID: PMC2215917, DOI: 10.1085/jgp.89.4.581.Peer-Reviewed Original ResearchConceptsCl/HCO3 exchangeNa-free solutionHCO3- exchangePeritubular NaCell pHHCO3- transport mechanismsBasolateral membraneProximal tubulesCoupling of NaMammalian proximal tubuleMeq/Similar increaseAmbient ClExtracellular fluidTubulesNa dependenceCotransporterNa concentrationCl concentrationsCellsSimilar amounts