2022
Persistent sensory changes and sex differences in transgenic mice conditionally expressing HIV-1 Tat regulatory protein
Toma W, Paris J, Warncke U, Nass S, Caillaud M, McKiver B, Ondo O, Bagdas D, Bigbee J, Knapp P, Hauser K, Damaj M. Persistent sensory changes and sex differences in transgenic mice conditionally expressing HIV-1 Tat regulatory protein. Experimental Neurology 2022, 358: 114226. PMID: 36096180, PMCID: PMC10053560, DOI: 10.1016/j.expneurol.2022.114226.Peer-Reviewed Original ResearchConceptsSensory neuropathyFemale miceHIV-1Tat expressionSensory nerve action potentialsIntraepidermal nerve fiber densityChronic HIV-1Persistent sensory changesPain-like behaviorsPeripheral sensory neuropathySevere chronic painDevelopment of neuropathyNerve fiber densityLumbar spinal cordDevelopment of hypersensitivityNerve action potentialsPrevious preclinical studiesDorsal root gangliaTNF-α expressionPPAR-α gene expressionTat regulatory proteinRole of TatHIV-1 TatSex differencesAllodynic responses
2020
Conditional expression of HIV‐1 tat in the mouse alters the onset and progression of tonic, inflammatory and neuropathic hypersensitivity in a sex‐dependent manner
Bagdas D, Paris J, Carper M, Wodarski R, Rice A, Knapp P, Hauser K, Damaj M. Conditional expression of HIV‐1 tat in the mouse alters the onset and progression of tonic, inflammatory and neuropathic hypersensitivity in a sex‐dependent manner. European Journal Of Pain 2020, 24: 1609-1623. PMID: 32533878, PMCID: PMC7856573, DOI: 10.1002/ejp.1618.Peer-Reviewed Original ResearchConceptsHIV-1 TatSex-dependent mannerFemale miceMechanical hypersensitivityAdjuvant injectionThermal hypersensitivityNeurotoxic HIV-1 regulatory proteinComplete Freund's adjuvant injectionChronic constrictive nerve injuryHIV sensory neuropathyNeuropathic nociceptive behaviorMagnitude of inflammationFreund's adjuvant injectionPeripheral nervous systemHIV-1 regulatory proteinHIV-1 proteinsAbility of TatSex differencesSequel of eventsNeuropathic hypersensitivityTat miceNerve injuryFormalin injectionPeripheral neuropathySensory neuropathy
2018
Early adolescent nicotine exposure affects later-life hippocampal mu-opioid receptors activity and morphine reward but not physical dependence in male mice
Kota D, Alajaji M, Bagdas D, Selley D, Sim-Selley L, Damaj M. Early adolescent nicotine exposure affects later-life hippocampal mu-opioid receptors activity and morphine reward but not physical dependence in male mice. Pharmacology Biochemistry And Behavior 2018, 173: 58-64. PMID: 30125591, PMCID: PMC6160313, DOI: 10.1016/j.pbb.2018.08.006.Peer-Reviewed Original ResearchConceptsMorphine rewardAdult miceG-protein activityNicotine exposurePhysical dependenceEarly adolescent nicotine exposureAdolescent nicotine treatmentMu-opioid receptor activityAdolescent nicotine exposureCurrent opioid crisisSomatic withdrawal signsMorphine physical dependenceDrug-taking behaviorNicotine treatmentWithdrawal signsWithdrawal symptomsMale miceLong-term effectsLow doseNicotine productsCPP testOpioid crisisReceptor activitySubstance abuseMice
2015
Expression and pharmacological modulation of visceral pain-induced conditioned place aversion in mice
Bagdas D, Muldoon P, AlSharari S, Carroll F, Negus S, Damaj M. Expression and pharmacological modulation of visceral pain-induced conditioned place aversion in mice. Neuropharmacology 2015, 102: 236-243. PMID: 26639043, PMCID: PMC5574195, DOI: 10.1016/j.neuropharm.2015.11.024.Peer-Reviewed Original ResearchMeSH Keywords3,4-Dichloro-N-methyl-N-(2-(1-pyrrolidinyl)-cyclohexyl)-benzeneacetamide, (trans)-IsomerAnalgesics, OpioidAnimalsAnti-Inflammatory Agents, Non-SteroidalAvoidance LearningBehavior, AnimalKetoprofenMaleMiceMice, Inbred ICRMorphinePiperidinesReceptors, Opioid, kappaReceptors, Opioid, muTetrahydroisoquinolinesVisceral PainConceptsMu-opioid receptor agonist morphinePlace aversionOpioid receptor agonist morphineReceptor agonist morphineMale ICR micePlace aversion (CPA) testPreclinical mouse modelsCandidate analgesicsNonsteroidal anti-inflammatory drug ketoprofenAgonist morphineOpioid agonistsICR miceIntraperitoneal administrationAnti-inflammatory drug ketoprofenPreclinical studiesMouse modelPharmacological modulationAnimal modelsMorphinePainReversal abilityAversion testAversive behaviorMiceBiological mechanisms