2006
Effects of a Chronic Compression of the Dorsal Root Ganglion on Voltage-Gated Na+ and K+ Currents in Cutaneous Afferent Neurons
Tan Z, Donnelly D, LaMotte R. Effects of a Chronic Compression of the Dorsal Root Ganglion on Voltage-Gated Na+ and K+ Currents in Cutaneous Afferent Neurons. Journal Of Neurophysiology 2006, 95: 1115-1123. PMID: 16424456, DOI: 10.1152/jn.00830.2005.Peer-Reviewed Original ResearchConceptsDorsal root gangliaCCD neuronsRoot gangliaChronic compressionTTX-sensitiveL5 dorsal root gangliaWhole-cell patch-clamp recordingsCell patch-clamp recordingsCutaneous afferent neuronsEnhanced neuronal excitabilityTTX-resistant currentSteady-state activation curvePatch-clamp recordingsCutaneous hyperalgesiaCutaneous neuronsDRG somataAfferent neuronsControl neuronsControl ratsNeuronal somataNeuronal excitabilityAdult ratsSpontaneous activityIntervertebral foraminaLower rheobase
1999
Plasticity of sodium channel expression in DRG neurons in the chronic constriction injury model of neuropathic pain
Dib-Hajj S, Fjell J, Cummins TR, Zheng Z, Fried K, LaMotte R, Black JA, Waxman S. Plasticity of sodium channel expression in DRG neurons in the chronic constriction injury model of neuropathic pain. Pain 1999, 83: 591-600. PMID: 10568868, DOI: 10.1016/s0304-3959(99)00169-4.Peer-Reviewed Original ResearchConceptsTTX-R sodium channelsChronic constriction injury modelDRG neuronsSodium currentSodium channelsNeuropathic painInjury modelAxotomized dorsal root ganglion (DRG) neuronsSmall-diameter DRG neuronsTTX-R sodium currentsDorsal root ganglion neuronsTTX-S currentsSodium channel expressionGanglion neuronsSciatic nerveChannel expressionSodium channel transcriptsNeuronsNa currentPainChannel transcriptsSignificant changesLevels of transcriptsHyperalgesiaPrevious studies
1997
Axotomy Increases the Excitability of Dorsal Root Ganglion Cells With Unmyelinated Axons
Zhang J, Donnelly D, Song X, Lamotte R. Axotomy Increases the Excitability of Dorsal Root Ganglion Cells With Unmyelinated Axons. Journal Of Neurophysiology 1997, 78: 2790-2794. PMID: 9356426, DOI: 10.1152/jn.1997.78.5.2790.Peer-Reviewed Original ResearchConceptsDorsal root gangliaUnmyelinated axonsRoot gangliaSodium currentTTX-sensitive sodium currentWhole-cell patch-clamp recordingsCell patch-clamp recordingsDorsal root ganglion cellsTTX-resistant currentC cellsEffects of axotomyAction potential thresholdPatch-clamp recordingsAction potential durationNeuropathic painVoltage-clamp conditionsPeak sodium currentDRG cellsGanglion cellsSoma sizeFast BlueNerve fibersConduction velocityAxotomyPotential duration