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
The predator odor, TMT, displays a unique, stress-like pattern of dopaminergic and endocrinological activation in the rat
Morrow B, Redmond A, Roth R, Elsworth J. The predator odor, TMT, displays a unique, stress-like pattern of dopaminergic and endocrinological activation in the rat. Brain Research 2000, 864: 146-151. PMID: 10793199, DOI: 10.1016/s0006-8993(00)02174-0.Peer-Reviewed Original ResearchConceptsDopamine metabolismSerum corticosteroneAcute exposureCentral dopamine metabolismNucleus accumbens coreMedial prefrontal cortexFear-inducing behaviorPredator odorCentral effectsAccumbens coreRatsStressful stimuliPrefrontal cortexConditioned fearAltered behaviorControl odorAversive stimuliCorticosteroneMetabolismOpen fieldBiochemical activationUnique patternExposureActivationTMT
1999
Striatal dopaminergic correlates of stable parkinsonism and degree of recovery in old-world primates one year after MPTP treatment
Elsworth J, Taylor J, Sladek J, Collier T, Redmond D, Roth R. Striatal dopaminergic correlates of stable parkinsonism and degree of recovery in old-world primates one year after MPTP treatment. Neuroscience 1999, 95: 399-408. PMID: 10658619, DOI: 10.1016/s0306-4522(99)00437-6.Peer-Reviewed Original ResearchConceptsHomovanillic acid/dopamine ratioMPTP treatmentStriatal dopamine levelsDopamine levelsDopamine lossDopamine depletionDopamine ratioStriatal subregionsNucleus accumbensCaudate nucleusDopamine concentrationsOne-yearSeverity categoriesDopamine neuron integrityVentromedial caudate nucleusStriatal dopamine lossHomovanillic acid concentrationsStriatal dopaminergic functionMarked increaseNormal motor performancePaucity of dataMetabolic activityNon-human primatesParkinsonian disabilityTetrahydropyridine (MPTP) model
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 bindingDysregulation of Mesoprefrontal Dopamine Neurons Induced by Acute and Repeated Phencyclidine Administration in the Nonhuman Primate: Implications for Schizophrenia
Jentsch J, Elsworth J, Taylor J, Redmond D, Roth R. Dysregulation of Mesoprefrontal Dopamine Neurons Induced by Acute and Repeated Phencyclidine Administration in the Nonhuman Primate: Implications for Schizophrenia. Advances In Pharmacology 1997, 42: 810-814. PMID: 9328021, DOI: 10.1016/s1054-3589(08)60870-4.Peer-Reviewed Original ResearchConceptsPCP administrationAcute PCP administrationNegative symptomsDA systemMesoprefrontal dopamine neuronsSubcortical DA systemsBrains of patientsSchizophrenia-like symptomatologyDevelopment of neuropathologyDistinct behavioral effectsDAergic dysfunctionDA metabolismDAergic functionDopamine neuronsCognitive dysfunctionNovel agentsDeficits of schizophreniaFrontal cortexPsychotomimetic propertiesNeurobiological effectsDopamine systemPositive symptomsPhencyclidine administrationBehavioral effectsAdministration
1996
Blockade of FG 7142‐Induced Increased Dopamine Utilization by the Glycine/NMDA Receptor Antagonist (+)‐HA 966
Horger B, Elsworth J, Roth R. Blockade of FG 7142‐Induced Increased Dopamine Utilization by the Glycine/NMDA Receptor Antagonist (+)‐HA 966. Journal Of Neurochemistry 1996, 66: 1959-1962. PMID: 8780023, DOI: 10.1046/j.1471-4159.1996.66051959.x.Peer-Reviewed Original ResearchConceptsDopamine utilizationFG 7142Medial prefrontal cortexNucleus accumbensPrefrontal cortexReceptor antagonistHA-966Shell subdivisionReceptor influencesBenzodiazepine inverse agonist FG 7142Male Sprague-Dawley ratsMedia prefrontal cortexMesoaccumbal dopamine neuronsGlycine/NMDA receptor antagonistGlycine receptor antagonistSaline 15 minNMDA receptor antagonistSprague-Dawley ratsDopamine neuronsVehicle administrationSystemic administrationDihydroxyphenylacetic acidAccumbensMajor metaboliteTissue concentrationsTyrosine 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 ResearchConceptsMedial prefrontal cortexDopamine metabolismNucleus accumbensNonconditioned controlsPrefrontal cortexDopamine utilizationAdministration of haloperidolExogenous tyrosineBiosynthesis of catecholaminesDopaminergic responseDietary tyrosineRelevant doseAccumbensRatsTyrosine hydroxylationCortexGreater elevationNonconditioned ratsB-carbolineSaline/Test dayMetabolismBehavioral consequencesAversive conditioningTone
1995
Selective Increase in Dopamine Utilization in the Shell Subdivision of the Nucleus Accumbens by the Benzodiazepine Inverse Agonist FG 7142
Horger B, Elsworth J, Roth R. Selective Increase in Dopamine Utilization in the Shell Subdivision of the Nucleus Accumbens by the Benzodiazepine Inverse Agonist FG 7142. Journal Of Neurochemistry 1995, 65: 770-774. PMID: 7616234, DOI: 10.1046/j.1471-4159.1995.65020770.x.Peer-Reviewed Original ResearchConceptsBenzodiazepine inverse agonist FG 7142Dopamine utilizationFG 7142Nucleus accumbensShell subdivisionWhole nucleus accumbensVivo microdialysis studyRats 30 minMedial prefrontal cortexMicrodialysis studyDopamine metabolismDopamine releaseDihydroxyphenylacetic acidAccumbensBrain regionsPrefrontal cortexSelective increaseMajor metaboliteTissue concentrationsPrevious reportsAdministration
1993
Cocaine-sensitive and -insensitive dopamine uptake in prefrontal cortex, nucleus accumbens and striatum
Elsworth J, Taylor J, Berger P, Roth R. Cocaine-sensitive and -insensitive dopamine uptake in prefrontal cortex, nucleus accumbens and striatum. Neurochemistry International 1993, 23: 61-69. PMID: 8369733, DOI: 10.1016/0197-0186(93)90144-t.Peer-Reviewed Original ResearchCocaine and Cocaethylene: Microdialysis Comparison of Brain Drug Levels and Effects on Dopamine and Serotonin
Bradberry C, Nobiletti J, Elsworth J, Murphy B, Jatlow P, Roth R. Cocaine and Cocaethylene: Microdialysis Comparison of Brain Drug Levels and Effects on Dopamine and Serotonin. Journal Of Neurochemistry 1993, 60: 1429-1435. PMID: 8455033, DOI: 10.1111/j.1471-4159.1993.tb03305.x.Peer-Reviewed Original Research
1990
Interaction of [3H]GBR 12935 and GBR 12909 with the dopamine uptake complex in nucleus accumbens
Berger P, Elsworth J, Arroyo J, Roth R. Interaction of [3H]GBR 12935 and GBR 12909 with the dopamine uptake complex in nucleus accumbens. European Journal Of Pharmacology 1990, 177: 91-94. PMID: 1967129, DOI: 10.1016/0014-2999(90)90554-j.Peer-Reviewed Original Research