2012
Maladaptive Dendritic Spine Remodeling Contributes to Diabetic Neuropathic Pain
Tan AM, Samad OA, Fischer TZ, Zhao P, Persson AK, Waxman SG. Maladaptive Dendritic Spine Remodeling Contributes to Diabetic Neuropathic Pain. Journal Of Neuroscience 2012, 32: 6795-6807. PMID: 22593049, PMCID: PMC6622192, DOI: 10.1523/jneurosci.1017-12.2012.Peer-Reviewed Original ResearchConceptsDiabetic neuropathic painNeuropathic painDendritic spinesSpine plasticitySpine morphologyMajor public health problemDiabetes-induced changesDevelopment of painDendritic spine remodelingDendritic spine plasticitySpontaneous firing activityPublic health problemAvailable clinical treatmentsEvidence of painDendritic spine morphologyDendritic spine shapeNeuronal hyperresponsivenessRange neuronsWDR neuronsNeuron hyperexcitabilitySTZ injectionDorsal hornMechanical painChronic painDiabetic rats
2009
Unilateral Focal Burn Injury Is Followed by Long-Lasting Bilateral Allodynia and Neuronal Hyperexcitability in Spinal Cord Dorsal Horn
Chang YW, Tan A, Saab C, Waxman S. Unilateral Focal Burn Injury Is Followed by Long-Lasting Bilateral Allodynia and Neuronal Hyperexcitability in Spinal Cord Dorsal Horn. Journal Of Pain 2009, 11: 119-130. PMID: 19744891, DOI: 10.1016/j.jpain.2009.06.009.Peer-Reviewed Original ResearchMeSH KeywordsAction PotentialsAnalysis of VarianceAnimalsBrain InjuriesCalcitonin Gene-Related PeptideCD11b AntigenDisease Models, AnimalFunctional LateralityHyperesthesiaMaleMicrogliaP38 Mitogen-Activated Protein KinasesPainPain MeasurementPain ThresholdPhysical StimulationPosterior Horn CellsRatsSpinal CordSubstance PConceptsSpinal cord dorsal hornBurn injuryBurn injury modelBilateral allodyniaDorsal hornNeuronal hyperexcitabilityInjury modelSpinal cordDorsal horn neuronal hyperexcitabilitySecond-order sensory neuronsCentral neuropathic mechanismsIpsilateral mechanical allodyniaDorsal horn neuronsActivation of microgliaPathogenesis of painPotential therapeutic targetNovel animal modelContralateral allodyniaMechanical allodyniaNeuropathic mechanismsSpinal microgliaBilateral painMicroglial activationNerve injuryWeeks postinjuryDendritic Spine Remodeling After Spinal Cord Injury Alters Neuronal Signal Processing
Tan AM, Choi JS, Waxman SG, Hains BC. Dendritic Spine Remodeling After Spinal Cord Injury Alters Neuronal Signal Processing. Journal Of Neurophysiology 2009, 102: 2396-2409. PMID: 19692517, DOI: 10.1152/jn.00095.2009.Peer-Reviewed Original ResearchConceptsSpinal cord injuryCord injurySynaptic transmissionDorsal horn nociceptive neuronsFrequency-following abilityDendritic spine remodelingGeneration of painAction potential activationDendritic spine morphologyDendritic spine shapeAbnormal painCentral sensitizationNociceptive neuronsSpine remodelingPostsynaptic neuronsDendritic spinesSpine morphologyInput-output functionPainSoma resultsInjurySpine shapeNeuronal statesNeuronsPotential activation
2008
Neuropathic Pain Memory Is Maintained by Rac1-Regulated Dendritic Spine Remodeling after Spinal Cord Injury
Tan AM, Stamboulian S, Chang YW, Zhao P, Hains AB, Waxman SG, Hains BC. Neuropathic Pain Memory Is Maintained by Rac1-Regulated Dendritic Spine Remodeling after Spinal Cord Injury. Journal Of Neuroscience 2008, 28: 13173-13183. PMID: 19052208, PMCID: PMC6671613, DOI: 10.1523/jneurosci.3142-08.2008.Peer-Reviewed Original ResearchMeSH KeywordsAction PotentialsAnimalsComputer SimulationDendritic SpinesDisease Models, AnimalEnzyme ActivationEnzyme InhibitorsExcitatory Postsynaptic PotentialsHyperalgesiaLearningMaleMemoryNeuralgiaNeuronal PlasticityPain MeasurementPain ThresholdPosterior Horn CellsRac1 GTP-Binding ProteinRatsRats, Sprague-DawleySpinal Cord InjuriesSynaptic TransmissionConceptsSpinal cord injuryNeuropathic painCord injuryWide dynamic range neuronsContusion spinal cord injuryDendritic spine pathologyInjury-induced hyperexcitabilityNoxious peripheral stimuliRats 1 monthChronic neuropathic painDorsal horn neuronsDendritic spine remodelingIncreased spine densityRange neuronsSpine morphometryDH neuronsTactile allodyniaNeuronal hyperexcitabilitySCI animalsThermal hyperalgesiaSham surgerySpine densityLamina IVControl neuronsSynaptic basis
2007
Sensory afferents regenerated into dorsal columns after spinal cord injury remain in a chronic pathophysiological state
Tan A, Petruska J, Mendell L, Levine J. Sensory afferents regenerated into dorsal columns after spinal cord injury remain in a chronic pathophysiological state. Experimental Neurology 2007, 206: 257-268. PMID: 17585905, PMCID: PMC3103885, DOI: 10.1016/j.expneurol.2007.05.013.Peer-Reviewed Original ResearchConceptsSpinal cord injuryDorsal columnsChronic pathophysiological stateNerve conditioning lesionConditioning lesionRegenerating axonsCord injurySensory afferentsInjury siteFrequency-following abilityInfusion of antibodiesPathophysiological statesIntrinsic growth stateExperimental spinal cord injuryRegenerating sensory axonsReduced conduction velocityIntrinsic growth capacitySensory axon growthAxonal growthGrowth inhibitory effectSensory neuronsSpinal cordCombinatorial treatmentInhibit axonal growthRepetitive stimuli