2001
Nicotine Receptor Inactivation Decreases Sensitivity to Cocaine
Zachariou V, Caldarone B, Weathers-Lowin A, George T, Elsworth J, Roth R, Changeux J, Picciotto M. Nicotine Receptor Inactivation Decreases Sensitivity to Cocaine. Neuropsychopharmacology 2001, 24: 576-589. PMID: 11282258, DOI: 10.1016/s0893-133x(00)00224-4.Peer-Reviewed Original ResearchConceptsPlace preferenceDA turnoverLow doseHigh-affinity nicotinic acetylcholine receptorsMesolimbic DA systemHigh-affinity nAChRsNicotinic antagonist mecamylamineWild-type miceMesolimbic dopamine systemFos-related antigensProperties of nicotineCocaine place preferenceΒ2 subunitNicotinic acetylcholine receptorsAntagonist mecamylamineDA releaseMetabolite DOPACNeurochemical changesSubthreshold doseType miceDopamine systemPsychomotor stimulantsAcetylcholine receptorsHigh dosesBrain regions
2000
Divergent effects of putative anxiolytics on stress‐induced Fos expression in the mesoprefrontal system of the rat
Morrow B, Elsworth J, Lee E, Roth R. Divergent effects of putative anxiolytics on stress‐induced Fos expression in the mesoprefrontal system of the rat. Synapse 2000, 36: 143-154. PMID: 10767061, DOI: 10.1002/(sici)1098-2396(200005)36:2<143::aid-syn7>3.0.co;2-h.Peer-Reviewed Original ResearchConceptsVentral tegmental areaFos-LITegmental areaMedial prefrontal cortexPutative anxiolyticsBenzodiazepine agonistsStress-induced Fos-like immunoreactivityPartial agonistStress-induced Fos expressionGlycine/NMDA receptorPrefrontal cortexMesoprefrontal dopamine neuronsPutative anxiolytic agentsTH-LI cellsSaline-treated ratsFos-like immunoreactivityAnxiolytic-like actionFos-LI nucleiWeak partial agonistStress-induced increaseFear-inducing behaviorFootshock paradigmAlpha2 agonistsStress-induced activationDopaminergic neurons
1999
The role of mesoprefrontal dopamine neurons in the acquisition and expression of conditioned fear in the rat
Morrow B, Elsworth J, Rasmusson A, Roth R. The role of mesoprefrontal dopamine neurons in the acquisition and expression of conditioned fear in the rat. Neuroscience 1999, 92: 553-564. PMID: 10408604, DOI: 10.1016/s0306-4522(99)00014-7.Peer-Reviewed Original ResearchMeSH KeywordsAdrenergic AgentsAnimalsConditioning, PsychologicalDopamineFearMaleNeuronsNorepinephrineOxidopaminePrefrontal CortexRatsRats, Sprague-DawleySerotoninStress, PhysiologicalConceptsFear conditioningMesoprefrontal dopamine neuronsClassical fear conditioningMedial prefrontal cortexDopamine neuronsFear responsesConditioned fearPrefrontal cortexFearful behaviorNormal extinctionConditioned responsePsychological stressorsRate of extinctionStress-related changesSham-lesioned ratsConditioningFearAcquisition periodDopamine metabolismNucleus accumbensDopamine levelsAcquisitionRatsNeuronsLesionsBiochemical and behavioral anxiolytic-like effects of R(+)HA-966 at the level of the ventral tegmental area in rats
Morrow B, Elsworth J, Zito C, Roth R. Biochemical and behavioral anxiolytic-like effects of R(+)HA-966 at the level of the ventral tegmental area in rats. Psychopharmacology 1999, 143: 227-234. PMID: 10353424, DOI: 10.1007/s002130050941.Peer-Reviewed Original ResearchConceptsVentral tegmental areaHA-966Expression sessionsIntra-VTADopamine metabolismTegmental areaGlycine/NMDA receptor complexPrefrontal cortexMesoprefrontal dopamine neuronsAnxiolytic-like effectsAnxiolytic-like actionDopamine cell bodiesNMDA receptor complexWeak partial agonistMedial prefrontal cortexStress-induced activationCannula implantationDopamine neuronsControl ratsLocal injectionPartial agonistRatsCell bodiesPsychological stressorsStress-induced changes
1997
(S)-(-)-HA-966, a gamma-hydroxybutyrate-like agent, prevents enhanced mesocorticolimbic dopamine metabolism and behavioral correlates of restraint stress, conditioned fear and cocaine sensitization.
Morrow B, Lee E, Taylor J, Elsworth J, Nye H, Roth R. (S)-(-)-HA-966, a gamma-hydroxybutyrate-like agent, prevents enhanced mesocorticolimbic dopamine metabolism and behavioral correlates of restraint stress, conditioned fear and cocaine sensitization. Journal Of Pharmacology And Experimental Therapeutics 1997, 283: 712-21. PMID: 9353390.Peer-Reviewed Original ResearchConceptsHA-966Dopamine metabolismMedial prefrontal cortexCocaine sensitizationNucleus accumbensHigh doseAcute cocaine-induced locomotionPrefrontal cortexGABAB receptor bindingCocaine-induced locomotionGamma-aminobutyric acidStress-induced increaseFear-inducing behaviorDopamine utilizationGABAB receptorsRestraint stressControl ratsLocomotor sensitizationDopaminergic neurotransmissionShell subdivisionBaclofen bindingCortical membranesPositive enantiomerWeight gainReceptor binding
1996
Tyrosine enhances behavioral and mesocorticolimbic dopaminergic responses to aversive conditioning
Morrow B, Elsworth J, Roth R. Tyrosine enhances behavioral and mesocorticolimbic dopaminergic responses to aversive conditioning. Synapse 1996, 22: 100-105. PMID: 8787125, DOI: 10.1002/(sici)1098-2396(199602)22:2<100::aid-syn2>3.0.co;2-h.Peer-Reviewed Original ResearchMeSH Keywords3,4-Dihydroxyphenylacetic AcidAnimalsBehavior, AnimalConditioning, PsychologicalDopamineMaleNucleus AccumbensPrefrontal CortexRatsRats, Sprague-DawleyTyrosineConceptsMedial prefrontal cortexDopamine metabolismNucleus accumbensNonconditioned controlsPrefrontal cortexDopamine utilizationAdministration of haloperidolExogenous tyrosineBiosynthesis of catecholaminesDopaminergic responseDietary tyrosineRelevant doseAccumbensRatsTyrosine hydroxylationCortexGreater elevationNonconditioned ratsB-carbolineSaline/Test dayMetabolismBehavioral consequencesAversive conditioningTone