2023
Nav1.7 P610T mutation in two siblings with persistent ocular pain after corneal axon transection: impaired slow inactivation and hyperexcitable trigeminal neurons
Ghovanloo M, Effraim P, Yuan J, Schulman B, Jacobs D, Dib-Hajj S, Waxman S. Nav1.7 P610T mutation in two siblings with persistent ocular pain after corneal axon transection: impaired slow inactivation and hyperexcitable trigeminal neurons. Journal Of Neurophysiology 2023, 129: 609-618. PMID: 36722722, PMCID: PMC9988530, DOI: 10.1152/jn.00457.2022.Peer-Reviewed Original ResearchConceptsPersistent ocular painTrigeminal ganglion neuronsOcular painCorneal refractive surgeryGanglion neuronsRefractive surgeryAxonal injurySlow inactivationHuman pain modelTrigeminal afferent nervesTrigeminal ganglion axonsSmall subgroupPain-related disordersEffects of injurySodium channel Nav1.7Channel slow inactivationEye painPostoperative painMost patientsPain modelAfferent nervesPersistent painTrigeminal neuronsNav1.7 mutationAxon transection
2022
Sexual dimorphism in a neuronal mechanism of spinal hyperexcitability across rodent and human models of pathological pain
Dedek A, Xu J, Lorenzo LÉ, Godin AG, Kandegedara CM, Glavina G, Landrigan JA, Lombroso PJ, De Koninck Y, Tsai EC, Hildebrand ME. Sexual dimorphism in a neuronal mechanism of spinal hyperexcitability across rodent and human models of pathological pain. Brain 2022, 145: 1124-1138. PMID: 35323848, PMCID: PMC9050559, DOI: 10.1093/brain/awab408.Peer-Reviewed Original ResearchConceptsBrain-derived neurotrophic factorSuperficial dorsal horn neuronsDorsal horn neuronsFemale ratsNeurotrophic factorNeuronal mechanismsCentral neuronal mechanismsSpinal nociceptive circuitsSpinal pain processingSuperficial dorsal hornChronic pain syndromeLamina I neuronsPreclinical pain modelsHuman organ donorsSynaptic NMDAR responsesNMDAR potentiationSpinal hyperexcitabilityInflammatory painNociceptive circuitsPain syndromeTactile allodyniaDorsal hornPain modelPathological painLaminae I
2021
(E)-3-furan-2-yl-N-phenylacrylamide (PAM-4) decreases nociception and emotional manifestations of neuropathic pain in mice by α7 nicotinic acetylcholine receptor potentiation
Bagdas D, Sevdar G, Gul Z, Younis R, Cavun S, Tae HS, Ortells MO, Arias HR, Gurun MS. (E)-3-furan-2-yl-N-phenylacrylamide (PAM-4) decreases nociception and emotional manifestations of neuropathic pain in mice by α7 nicotinic acetylcholine receptor potentiation. Neurological Research 2021, 43: 1056-1068. PMID: 34281483, DOI: 10.1080/01616412.2021.1949684.Peer-Reviewed Original ResearchConceptsPositive allosteric modulationΑ7 nAChRsNeuropathic painΑ7-selective antagonist methyllycaconitineΑ7 nicotinic acetylcholine receptorChronic constriction injuryPaw licking behaviorNeuropathic pain modelAcute systemic administrationChronic painful conditionsAntidepressant-like activityAnti-nociceptive activityDepression-like behaviorAnxiogenic-like effectsNicotinic acetylcholine receptorsAffective behaviorHuman α7 nAChRConstriction injuryMechanical allodyniaFormalin testPain modelAntagonist methyllycaconitineChronic painPainful conditionsRat α7 nAChR
2020
Deficit in voluntary wheel running in chronic inflammatory and neuropathic pain models in mice: Impact of sex and genotype
Contreras KM, Caillaud M, Neddenriep B, Bagdas D, Roberts JL, Ulker E, White AB, Aboulhosn R, Toma W, Khalefa T, Adel A, Mann JA, Damaj MI. Deficit in voluntary wheel running in chronic inflammatory and neuropathic pain models in mice: Impact of sex and genotype. Behavioural Brain Research 2020, 399: 113009. PMID: 33181181, PMCID: PMC8961431, DOI: 10.1016/j.bbr.2020.113009.Peer-Reviewed Original ResearchConceptsNeuropathic pain modelChronic constriction injuryMechanical withdrawal thresholdPain modelStrains of miceWithdrawal thresholdDBA/2J miceVoluntary wheelChronic neuropathic pain modelPaclitaxel-treated miceVehicle-treated miceUnilateral intraplantar injectionLower mechanical thresholdsChronic pain reportQuality of lifeChemotherapy agent paclitaxelImpact of sexDifferent mouse strainsCCI miceCCI surgeryConstriction injuryIntraplantar injectionSham surgeryMale C57BL/6JNovel analgesicsThiopental Does Not Produce Hyperalgesia: A Laboratory Study Using Two Human Experimental Pain Models
Arout CA, Petrakis IL, Ralevski E, Acampora G, Koretski J, DeNegre D, Newcomb J, Perrino AC. Thiopental Does Not Produce Hyperalgesia: A Laboratory Study Using Two Human Experimental Pain Models. Pain Medicine 2020, 21: 2823-2829. PMID: 32249311, PMCID: PMC8453625, DOI: 10.1093/pm/pnaa037.Peer-Reviewed Original ResearchConceptsArea of hyperalgesiaExperimental pain modelsCapsaicin conditionPain modelPain thresholdElectrical stimulationPercent changeHuman experimental pain modelsEffects of thiopentalVon Frey techniqueMcGill Pain QuestionnaireExperimental pain paradigmNoxious electrical stimulationSignificant differencesIntradermal capsaicinPain interpretationThiopental effectPain QuestionnaireBarbiturate administrationHyperalgesiaThiopental infusionHuman studiesPain paradigmPain toleranceElectrical stimulation currents
2019
Pharmacological mechanisms of alcohol analgesic-like properties in mouse models of acute and chronic pain
Neddenriep B, Bagdas D, Contreras K, Ditre J, Wolstenholme J, Miles M, Damaj M. Pharmacological mechanisms of alcohol analgesic-like properties in mouse models of acute and chronic pain. Neuropharmacology 2019, 160: 107793. PMID: 31562845, PMCID: PMC6924270, DOI: 10.1016/j.neuropharm.2019.107793.Peer-Reviewed Original ResearchConceptsAnalgesic-like propertiesComplete Freund's adjuvantAnti-nociceptive propertiesChronic painNeuropathic painChronic constriction injury modelAlcohol useMu-opioid systemOral ethanol administrationPain-like statePeripheral neuropathic painNeuropathic pain modelKappa-selective antagonistAcute alcohol useAnalgesic-like effectsDose-dependent reversalMechanical hypersensitivityAnalgesic effectNerve injuryPain modelAcute modelOpioid systemAcute alcoholFreund's adjuvantChronic useC57BL/6 substrain differences in inflammatory and neuropathic nociception and genetic mapping of a major quantitative trait locus underlying acute thermal nociception
Bryant C, Bagdas D, Goldberg L, Khalefa T, Reed E, Kirkpatrick S, Kelliher J, Chen M, Johnson W, Mulligan M, Damaj M. C57BL/6 substrain differences in inflammatory and neuropathic nociception and genetic mapping of a major quantitative trait locus underlying acute thermal nociception. Molecular Pain 2019, 15: 1744806918825046. PMID: 30632432, PMCID: PMC6365993, DOI: 10.1177/1744806918825046.Peer-Reviewed Original ResearchConceptsAcute thermal nociceptionThermal nociceptionNerve injuryNociceptive behaviorPain modalitiesB6N miceAdjuvant modelComplete Freund's adjuvant (CFA) modelChronic constrictive nerve injuryBaseline mechanical thresholdInflammatory nociceptive behaviorsInflammatory nociceptive stimulusStrain differencesFreund's adjuvant modelDifferent pain modalitiesHot plate testPreclinical pain modelsHot plate sensitivityNeuropathic nociceptionNociceptive markersPaw diameterMechanical hypersensitivityInflammatory painNeuropathic painPain model
2018
Curcumin Acts as a Positive Allosteric Modulator of α 7-Nicotinic Acetylcholine Receptors and Reverses Nociception in Mouse Models of Inflammatory Pain
El Nebrisi E, Bagdas D, Toma W, Al Samri H, Brodzik A, Alkhlaif Y, Yang K, Howarth F, Damaj I, Oz M. Curcumin Acts as a Positive Allosteric Modulator of α 7-Nicotinic Acetylcholine Receptors and Reverses Nociception in Mouse Models of Inflammatory Pain. Journal Of Pharmacology And Experimental Therapeutics 2018, 365: 190-200. PMID: 29339457, PMCID: PMC7947331, DOI: 10.1124/jpet.117.245068.Peer-Reviewed Original ResearchConceptsEffect of curcuminPositive allosteric modulatorsMouse modelVisceral painAntinociceptive effectNACh receptorsAcetylcholine receptorsAllosteric modulatorsΑ7 nicotinic acetylcholine receptorVisceral pain modelHuman nicotinic acetylcholine receptorNicotinic acetylcholine receptorsInflammatory painPain modelNociceptive behaviorReceptor agonistSignificant potentiationDependent ClLocomotor activityACh concentrationPainNociceptionReceptorsTonicG proteins
2017
Allosteric modulation of α4β2* nicotinic acetylcholine receptors: Desformylflustrabromine potentiates antiallodynic response of nicotine in a mouse model of neuropathic pain
Bagdas D, Ergun D, Jackson A, Toma W, Schulte M, Damaj M. Allosteric modulation of α4β2* nicotinic acetylcholine receptors: Desformylflustrabromine potentiates antiallodynic response of nicotine in a mouse model of neuropathic pain. European Journal Of Pain 2017, 22: 84-93. PMID: 28809075, PMCID: PMC9829446, DOI: 10.1002/ejp.1092.Peer-Reviewed Original ResearchConceptsPositive allosteric modulatorsChronic neuropathic painNeuropathic painΑ4β2 nAChRsNicotinic acetylcholine receptorsAllosteric modulationAcetylcholine receptorsAntagonist dihydro-β-erythroidineNeuronal nicotinic acetylcholine receptorsChronic constriction injuryEndogenous cholinergic toneNicotine-evoked responsesAnimal pain modelsNicotine-induced antinociceptionDihydro-β-erythroidineMediation of painAlternative treatment strategiesBehavior doseConstriction injuryAntiallodynic effectPain modelPain modulationCholinergic tonePain behaviorAntinociceptive properties
2016
The α7 nicotinic receptor dual allosteric agonist and positive allosteric modulator GAT107 reverses nociception in mouse models of inflammatory and neuropathic pain
Bagdas D, Wilkerson J, Kulkarni A, Toma W, AlSharari S, Gul Z, Lichtman A, Papke R, Thakur G, Damaj M. The α7 nicotinic receptor dual allosteric agonist and positive allosteric modulator GAT107 reverses nociception in mouse models of inflammatory and neuropathic pain. British Journal Of Pharmacology 2016, 173: 2506-2520. PMID: 27243753, PMCID: PMC4959951, DOI: 10.1111/bph.13528.Peer-Reviewed Original ResearchConceptsPositive allosteric modulatorsNeuropathic painPain modelAntinociceptive effectSpinal cordTail flickChronic constriction injury (CCI) neuropathic pain modelAllosteric agonistDose-dependent antinociceptive effectΑ7 nicotinic ACh receptorsGlial fibrillary acidic proteinNeuropathic pain modelAstrocyte-specific glial fibrillary acidic proteinInflammatory pain modelAcetic acid injectionHot-plate assayEffective pharmacological strategiesNicotinic ACh receptorsNovel therapeutic approachesFibrillary acidic proteinDorsal hornFormalin testPain modulationSubchronic administrationLocus of actionDiacylglycerol lipase β inhibition reverses nociceptive behaviour in mouse models of inflammatory and neuropathic pain
Wilkerson J, Ghosh S, Bagdas D, Mason B, Crowe M, Hsu K, Wise L, Kinsey S, Damaj M, Cravatt B, Lichtman A. Diacylglycerol lipase β inhibition reverses nociceptive behaviour in mouse models of inflammatory and neuropathic pain. British Journal Of Pharmacology 2016, 173: 1678-1692. PMID: 26915789, PMCID: PMC4842918, DOI: 10.1111/bph.13469.Peer-Reviewed Original ResearchConceptsChronic constrictive injuryNeuropathic pain modelWild-type miceAllodynic responsesInflammatory painPain modelLPS modelSide effectsExpression of LPSDiscernible side effectsUntoward side effectsPro-inflammatory responseEvidence of toleranceSites of inflammationConstrictive injuryMechanical allodyniaIntraplantar injectionNeuropathic painPathological painInflammatory mediatorsMouse peritoneal macrophagesLocus of actionNociceptive behaviorSciatic nerveAllodyniaA preliminary evaluation of cytotoxicity, antihyperglycemic and antinociceptive activity of Polygonum hydropiper L. ethanolic leaf extract
Oany A, Siddikey A, Hossain M, Islam R, Emran A. A preliminary evaluation of cytotoxicity, antihyperglycemic and antinociceptive activity of Polygonum hydropiper L. ethanolic leaf extract. Clinical Phytoscience 2016, 2: 2. DOI: 10.1186/s40816-016-0016-5.Peer-Reviewed Original ResearchBlood sugar levelsBlood glucose levelsAntinociceptive activityEthanolic leaf extractAbdominal writhingGlucose levelsBody weightAcetic acid-induced pain modelOral glucose tolerance testAcid-induced pain modelSugar levelsGlucose-loaded miceJuice of leavesStandard antihyperglycemic drugGlucose tolerance testLoss of appetiteFolk medicinal practitionersStandard drug aspirinAntinociceptive activity testsPain modelGastric ulcerLiver enlargementTolerance testAntihyperglycemic drugsEthnomedical use
2015
The Antinociceptive and Antiinflammatory Properties of 3-furan-2-yl-N-p-tolyl-acrylamide, a Positive Allosteric Modulator of &agr;7 Nicotinic Acetylcholine Receptors in Mice
Bagdas D, Targowska-Duda K, López J, Perez E, Arias H, Damaj M. The Antinociceptive and Antiinflammatory Properties of 3-furan-2-yl-N-p-tolyl-acrylamide, a Positive Allosteric Modulator of &agr;7 Nicotinic Acetylcholine Receptors in Mice. Anesthesia & Analgesia 2015, 121: 1369-1377. PMID: 26280585, PMCID: PMC4847442, DOI: 10.1213/ane.0000000000000902.Peer-Reviewed Original ResearchConceptsPositive allosteric modulatorsType II positive allosteric modulatorsNeuropathic pain modelInflammatory painNicotinic acetylcholine receptorsNeuropathic painPain modelCarrageenan testAntiinflammatory propertiesChronic constriction injury-induced neuropathic painAcetylcholine receptorsInjury-induced neuropathic painAllosteric modulatorsΑ7 nicotinic acetylcholine receptorSelective α7 agonistPlace aversion (CPA) testExperience of painEfficacy of agonistsEndogenous neurotransmissionMechanical allodyniaThermal hyperalgesiaTime-dependent mannerAntinociceptive effectComplete Freund'sPaw edemaThe role of alpha5 nicotinic acetylcholine receptors in mouse models of chronic inflammatory and neuropathic pain
Bagdas D, AlSharari S, Freitas K, Tracy M, Damaj M. The role of alpha5 nicotinic acetylcholine receptors in mouse models of chronic inflammatory and neuropathic pain. Biochemical Pharmacology 2015, 97: 590-600. PMID: 25931144, PMCID: PMC4600420, DOI: 10.1016/j.bcp.2015.04.013.Peer-Reviewed Original ResearchConceptsΑ5-KO miceΑ5 nAChRInflammatory painFormalin testPain modelChronic painMouse modelTumor necrosis factor-alpha levelsLong-term inflammatory painNecrosis factor-alpha levelsPaw-licking timeTonic inflammatory painChronic pain modelsDevelopment of hyperalgesiaInflammatory pain modelWild-type miceNicotinic acetylcholine receptorsAllodynic responsesMechanical allodyniaNicotine reversalCFA injectionNeuropathic painAntinociceptive effectNociceptive behaviorPain
2014
The analgesic-like properties of the alpha7 nAChR silent agonist NS6740 is associated with non-conducting conformations of the receptor
Papke R, Bagdas D, Kulkarni A, Gould T, AlSharari S, Thakur G, Damaj M. The analgesic-like properties of the alpha7 nAChR silent agonist NS6740 is associated with non-conducting conformations of the receptor. Neuropharmacology 2014, 91: 34-42. PMID: 25497451, PMCID: PMC4312719, DOI: 10.1016/j.neuropharm.2014.12.002.Peer-Reviewed Original ResearchConceptsPositive allosteric modulatorsChronic painAntinociceptive activityΑ7 nicotinic acetylcholine receptorAnalgesic-like propertiesPain-induced aversionNerve injury modelAcute thermal painNon-neuronal cellsNicotinic acetylcholine receptorsImportant affective componentIon channelsNeuropathic painPain modelNociceptive behaviorInflammatory diseasesInjury modelNS6740Α7 nAChRsΑ7 receptorsThermal painPainAcetylcholine receptorsChannel activatorNeurological disordersAntihyperalgesic and antidepressive actions of (R)-(+)-limonene, α-phellandrene, and essential oil from Schinus terebinthifolius fruits in a neuropathic pain model
Piccinelli A, Santos J, Konkiewitz E, Oesterreich S, Formagio A, Croda J, Ziff E, Kassuya C. Antihyperalgesic and antidepressive actions of (R)-(+)-limonene, α-phellandrene, and essential oil from Schinus terebinthifolius fruits in a neuropathic pain model. Nutritional Neuroscience 2014, 18: 217-224. PMID: 24661285, DOI: 10.1179/1476830514y.0000000119.Peer-Reviewed Original ResearchConceptsCold hyperalgesiaMechanical hyperalgesiaAntidepressive actionOral treatmentLocomotor activityExhibit anti-inflammatory activityNerve injury modelNeuropathic pain modelDepressive-like behaviorDose of ketamineAnti-inflammatory activityOpen field testAntihyperalgesic effectNeuropathic painSNI ratsPain modelSwim testS. terebinthifolius fruitsInjury modelOral administrationHyperalgesiaSchinus terebinthifolius fruitsCold stimuliRatsTreatment
2013
Role of central arginine vasopressin receptors in the analgesic effect of CDP-choline on acute and neuropathic pain
Bagdas D, Yucel-Ozboluk H, Orhan F, Kanat O, Isbil-Buyukcoskun N, Gurun M. Role of central arginine vasopressin receptors in the analgesic effect of CDP-choline on acute and neuropathic pain. Neuroreport 2013, 24: 941-946. PMID: 24089014, DOI: 10.1097/wnr.0000000000000009.Peer-Reviewed Original ResearchConceptsCentral AVP receptorsAnalgesic effectAVP V1Pain modelAVP receptorsChronic constriction injury-induced neuropathic pain modelCDP-cholineDifferent pain modelsRandall-Selitto testNeuropathic pain modelAVP V2 receptorsV2 receptor antagonistAVP V2 receptor antagonistArginine vasopressin receptorsNeuropathic painNeuropathic modelsPain modulationIntracerebroventricular injectionPain thresholdReceptor antagonistVasopressin levelsV2 receptorsVasopressin receptorsRatsReceptorsSciatic nerve regeneration is not inhibited by anti-NGF antibody treatment in the adult rat
Lankford K, Arroyo E, Liu C, Somps C, Zorbas M, Shelton D, Evans M, Hurst S, Kocsis J. Sciatic nerve regeneration is not inhibited by anti-NGF antibody treatment in the adult rat. Neuroscience 2013, 241: 157-169. PMID: 23531437, DOI: 10.1016/j.neuroscience.2013.03.024.Peer-Reviewed Original ResearchConceptsNerve growth factorAdult ratsNerve regenerationFunctional recoveryAnti-NGF antibody treatmentElevated nerve growth factorUnilateral sciatic nerve crushDorsal root ganglion neuronsAnti-NGF antibodySciatic nerve crushType of painVehicle-treated animalsSciatic nerve regenerationPost nerve injuryNovel therapeutic approachesCell body sizePeripheral nerve regenerationFluro-GoldPeripheral nervous system developmentNerve injuryPain modelNerve crushPain managementAntibody treatmentGait recovery
2012
Antihyperalgesic activity of chlorogenic acid in experimental neuropathic pain
Bagdas D, Cinkilic N, Ozboluk H, Ozyigit M, Gurun M. Antihyperalgesic activity of chlorogenic acid in experimental neuropathic pain. Journal Of Natural Medicines 2012, 67: 698-704. PMID: 23203628, DOI: 10.1007/s11418-012-0726-z.Peer-Reviewed Original ResearchConceptsChronic constrictive nerve injuryNeuropathic painAntihyperalgesic activityPeripheral neuropathic pain modelExperimental neuropathic painNeuropathic pain modelRota-rod testNovel potential therapeutic optionPotential therapeutic optionStrong therapeutic effectLatency of ratsChlorogenic acidAntihyperalgesic effectMechanical hyperalgesiaNerve injuryPain modelChronic administrationInflammatory cascadeTherapeutic optionsHistopathological changesInflammatory processTherapeutic effectAnalgesic activityPainNervous system
2011
The antihyperalgesic effect of cytidine-5′-diphosphate-choline in neuropathic and inflammatory pain models
Bagdas D, Sonat F, Hamurtekin E, Sonal S, Gurun M. The antihyperalgesic effect of cytidine-5′-diphosphate-choline in neuropathic and inflammatory pain models. Behavioural Pharmacology 2011, 22: 589-598. PMID: 21836465, DOI: 10.1097/fbp.0b013e32834a1efb.Peer-Reviewed Original ResearchConceptsNeuropathic pain modelAntihyperalgesic effectPain modelChronic constriction injury-induced neuropathic pain modelNonselective muscarinic receptor antagonist atropineNonselective opioid receptor antagonist naloxoneΓ-aminobutyric acid B receptorsNicotinic ACh receptor antagonistsReceptor antagonist CGP 35348Muscarinic receptor antagonist atropineNicotinic receptor antagonist mecamylamineOpioid receptor antagonist naloxoneCholine uptake inhibitor hemicholinium-3CDP-cholineEffect of intracerebroventricularlyAntagonist CGP 35348Central opioid receptorsInflammatory pain modelACh receptor antagonistNicotinic ACh receptorsCGP 35348Mechanical hyperalgesiaNeuropathic painAntagonist atropineAntagonist naloxone
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