1998
Effects of Glucose Deprivation, Chemical Hypoxia, and Simulated Ischemia on Na+ Homeostasis in Rat Spinal Cord Astrocytes
Rose C, Waxman S, Ransom B. Effects of Glucose Deprivation, Chemical Hypoxia, and Simulated Ischemia on Na+ Homeostasis in Rat Spinal Cord Astrocytes. Journal Of Neuroscience 1998, 18: 3554-3562. PMID: 9570787, PMCID: PMC6793162, DOI: 10.1523/jneurosci.18-10-03554.1998.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnimals, NewbornAntimetabolitesAstrocytesBenzofuransCell HypoxiaDeoxyglucoseEnergy MetabolismEnzyme InhibitorsEthers, CyclicExcitatory Amino Acid AgonistsFluorescent DyesFluorides, TopicalGlucoseGlycolysisHomeostasisIschemiaKainic AcidNeurotoxinsOuabainRatsRats, Sprague-DawleySodiumSodium AzideSodium FluorideSodium-Potassium-Exchanging ATPaseSpinal CordTetrodotoxinConceptsSpinal cord astrocytesChemical hypoxiaGlucose deprivationEnergy failureCultured spinal cord astrocytesGlutamatergic agonist kainateGlucose salineGlutamate reuptakeVivo ischemiaSpinal cordGlial functionMetabolic insultsSimulated ischemiaAgonist kainateIschemiaStandard salineAstrocytesSalineHypoxiaIntracellular ion concentrationsGlucose removalExtracellular spaceDeprivationL-lactateReperfusionNovel splice variants of the voltage-sensitive sodium channel alpha subunit
Oh Y, Waxman S. Novel splice variants of the voltage-sensitive sodium channel alpha subunit. Neuroreport 1998, 9: 1267-1272. PMID: 9631410, DOI: 10.1097/00001756-199805110-00002.Peer-Reviewed Original ResearchMeSH KeywordsAlternative SplicingAmino Acid SequenceAnimalsAnimals, NewbornAstrocytesAstrocytomaBrainBucladesineCalcimycinCells, CulturedGenetic VariationMacromolecular SubstancesModels, MolecularMolecular Sequence DataPolymerase Chain ReactionProtein ConformationRatsRats, Sprague-DawleySodium ChannelsSpinal CordUp-RegulationConceptsChannel alpha subunitNeuroblastoma cellsSpinal cord astrocytesB104 neuroblastoma cellsCultured rat astrocytesChannel mRNA expressionNovel splice variantSplice variantsSodium channel alpha subunitAlpha-subunit mRNASpinal cordCerebral astrocytesUnique regulatory pathwaysAlpha subunitRat astrocytesAstrocytesMRNA expressionSubunit mRNAsMicroM A23187Dibutyryl cAMPPremature truncationCellsExpressionRegulatory pathwaysCord
1997
Pharmacological Characterization of Na+ Influx via Voltage-Gated Na+ Channels in Spinal Cord Astrocytes
Rose C, Ransom B, Waxman S. Pharmacological Characterization of Na+ Influx via Voltage-Gated Na+ Channels in Spinal Cord Astrocytes. Journal Of Neurophysiology 1997, 78: 3249-3258. PMID: 9405543, DOI: 10.1152/jn.1997.78.6.3249.Peer-Reviewed Original ResearchConceptsSpinal cordChannel inactivationCultured spinal cordSpinal cord astrocytesEffect of veratridineSodium-binding benzofuranMicroM tetrodotoxinPharmacological characterizationAgonist kainatePharmacological inhibitionTetrodotoxinAstrocytesVeratridineCordMembrane depolarizationKainateImportant functional roleInfluxFunctional roleInhibitionCellsProminent pathwayATPase activityInactivationBaselineRegulation of Na+ channel β1 and β2 subunit mRNA levels in cultured rat astrocytes
Oh Y, Lee Y, Waxman S. Regulation of Na+ channel β1 and β2 subunit mRNA levels in cultured rat astrocytes. Neuroscience Letters 1997, 234: 107-110. PMID: 9364509, DOI: 10.1016/s0304-3940(97)00694-0.Peer-Reviewed Original ResearchConceptsReverse transcription-polymerase chain reactionMRNA levelsSpinal cordCompetitive reverse transcription-polymerase chain reactionQuantitative competitive reverse transcription-polymerase chain reactionSpinal cord astrocytesRat optic nerveDibutyryl cAMPBeta 2 mRNACultured rat astrocytesTranscription-polymerase chain reactionBeta 1 mRNASubunit mRNA levelsNeuroblastoma cell linesOptic nerveChannel β1Cultured astrocytesRat astrocytesCalcium ionophoreAstrocytesBeta 1Chain reactionCell linesCordMRNA
1996
Manipulation of the delayed rectifier Kv1.5 potassium channel in glial cells by antisense oligodeoxynucleotides
Roy M, Saal D, Perney T, Sontheimer H, Waxman S, Kaczmarek L. Manipulation of the delayed rectifier Kv1.5 potassium channel in glial cells by antisense oligodeoxynucleotides. Glia 1996, 18: 177-184. PMID: 8915650, DOI: 10.1002/(sici)1098-1136(199611)18:3<177::aid-glia2>3.0.co;2-x.Peer-Reviewed Original ResearchConceptsGlial cellsKv1.5 channel proteinSpinal cordKv1.5 proteinCultured spinal cordTEA-insensitive currentSpinal cord astrocytesRectifier current densityPotassium channel typesAntisense oligodeoxynucleotide treatmentKv1.5 potassium channelAdult ratsCerebellar slicesChannel proteinsAstrocytesOligodeoxynucleotide treatmentPotassium channelsRectifier currentEndfoot processesSuch treatmentCurrent activationAntisense oligodeoxynucleotidesCordCellsTreatment
1994
Type II sodium channels in spinal cord astrocytes in situ: Immunocytochemical observations
Black J, Westenbroek R, Ransom B, Catterall W, Waxman S. Type II sodium channels in spinal cord astrocytes in situ: Immunocytochemical observations. Glia 1994, 12: 219-227. PMID: 7851989, DOI: 10.1002/glia.440120307.Peer-Reviewed Original ResearchConceptsAdult rat spinal cordRat spinal cordOptic nerveSubtype-specific sequencesSpinal cordVentral funiculusSpinal cord white matter tractsSpinal cord white matterSodium channelsSpinal cord astrocytesCord white matterWhite matter tractsType ISodium channel alphaWhite matterAstrocytesNerveImmunocytochemical methodsCordChannel alphaSodium channel IIIsoform expressionDetectable labelingType II sodium channelsImmunocytochemical observations