Nav1.8 in small dorsal root ganglion neurons contributes to vincristine-induced mechanical allodynia
Nascimento de Lima A, Zhang H, Chen L, Effraim P, Gomis-Perez C, Cheng X, Huang J, Waxman S, Dib-Hajj S. Nav1.8 in small dorsal root ganglion neurons contributes to vincristine-induced mechanical allodynia. Brain 2024, 147: 3157-3170. PMID: 38447953, DOI: 10.1093/brain/awae071.Peer-Reviewed Original ResearchDorsal root ganglion neuronsDorsal root ganglionVincristine-induced mechanical allodyniaVincristine-induced peripheral neuropathyMechanical allodyniaVincristine treatmentNav1.8 channelsSmall dorsal root ganglion neuronsDevelopment of mechanical allodyniaTTX-R current densityVoltage-gated sodium channel Nav1.6Vincristine-treated animalsCurrent-clamp recordingsSodium channel Nav1.8Voltage-clamp recordingsReducing current thresholdSodium channel Nav1.6Investigate pathophysiological mechanismsTTX-RHyperpolarizing shiftRoot ganglionAllodyniaGanglion neuronsVincristine administrationPeripheral neuropathyFunctionally-selective inhibition of threshold sodium currents and excitability in dorsal root ganglion neurons by cannabinol
Ghovanloo M, Effraim P, Tyagi S, Zhao P, Dib-Hajj S, Waxman S. Functionally-selective inhibition of threshold sodium currents and excitability in dorsal root ganglion neurons by cannabinol. Communications Biology 2024, 7: 120. PMID: 38263462, PMCID: PMC10805714, DOI: 10.1038/s42003-024-05781-x.Peer-Reviewed Original ResearchConceptsDorsal root ganglionDorsal root ganglion neuronal excitabilityDorsal root ganglion neuronsNeuronal excitabilityCurrent-clamp analysisSteady-state inactivationVoltage-dependent sodiumSlow inactivated stateAutomated patch clamp platformMultielectrode array recordingsNav currentsNeuropathic painSodium currentRoot ganglionGanglion neuronsSlow inactivationInactivated stateCurrent inhibitorsIon channelsNeuronsInhibitory effectCannabinolArray recordingsEndocannabinoidCannabinoid
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