2011
Reduced locomotor responses to cocaine in ghrelin-deficient mice
Abizaid A, Mineur YS, Roth RH, Elsworth JD, Sleeman MW, Picciotto MR, Horvath TL. Reduced locomotor responses to cocaine in ghrelin-deficient mice. Neuroscience 2011, 192: 500-506. PMID: 21699961, DOI: 10.1016/j.neuroscience.2011.06.001.Peer-Reviewed Original ResearchConceptsGhrelin KO miceWT miceDopamine releaseLocomotor activityBehavioral effectsDopamine metabolite concentrationsGhrelin-deficient miceLocomotor-stimulating effectsDopamine cell activityEffects of cocaineMesolimbic dopaminergic systemWild-type littermatesOrexigenic hormoneChronic injectionsDopamine utilizationDaily injectionsStriatal dopamineMesolimbic systemWT littermatesDopaminergic systemDaily cocaineFood intakeRewarding effectsPsychostimulant effectsLocomotor response
2010
Locomotion and Self-Administration Induced by Cocaine in 129/OlaHsd Mice Lacking Galanin
Brabant C, Kuschpel AS, Picciotto MR. Locomotion and Self-Administration Induced by Cocaine in 129/OlaHsd Mice Lacking Galanin. Behavioral Neuroscience 2010, 124: 828-838. PMID: 21038934, PMCID: PMC3058554, DOI: 10.1037/a0021221.Peer-Reviewed Original ResearchConceptsGal KO miceCocaine-induced hyperactivityGalanin receptor agonistCocaine-induced hyperlocomotionSpontaneous motor activityGalanin knockout miceEffects of cocaineDrug takersDoses of cocaineDrugs of abuseSelf-administer cocaineGalanin systemReceptor agonistLocomotor effectsKnockout miceGalaninIntravenous cocaineMotor activityFixed ratio scheduleSelf-AdministrationGenetic deletionMiceCocaineDifferent schedulesRatio schedule
2006
Differential effects of nicotinic antagonists perfused into the nucleus accumbens or the ventral tegmental area on cocaine-induced dopamine release in the nucleus accumbens of mice
Zanetti L, Picciotto MR, Zoli M. Differential effects of nicotinic antagonists perfused into the nucleus accumbens or the ventral tegmental area on cocaine-induced dopamine release in the nucleus accumbens of mice. Psychopharmacology 2006, 190: 189. PMID: 17061109, DOI: 10.1007/s00213-006-0598-6.Peer-Reviewed Original ResearchConceptsIntra-VTA perfusionVentral tegmental areaDA levelsNucleus accumbensCocaine-elicited increasesPerfusate levelsTegmental areaCocaine-induced dopamine releaseNicotinic acetylcholine receptor antagonistMesolimbic DA neuronsDihydro-β-erythroidineAcetylcholine receptor antagonistEffects of cocaineMesolimbic dopamine systemSubtype-specific mannerDA neuronsNAChR antagonistIntracerebral microdialysisNicotinic antagonistsReceptor antagonistNicotinic pathwayLocal perfusionDopamine releaseDopamine systemPerfusion