2023
Ventral tegmental area M5 muscarinic receptors mediate effort-choice responding and nucleus accumbens dopamine in a sex-specific manner
Nunes E, Kebede N, Haight J, Foster D, Lindsley C, Conn P, Addy N. Ventral tegmental area M5 muscarinic receptors mediate effort-choice responding and nucleus accumbens dopamine in a sex-specific manner. Journal Of Pharmacology And Experimental Therapeutics 2023, 385: jpet-ar-2022-001438. PMID: 36828630, PMCID: PMC10108441, DOI: 10.1124/jpet.122.001438.Peer-Reviewed Original ResearchConceptsNucleus accumbens coreVentral tegmental areaM5 receptorsDA releaseMale ratsVTA infusionsDepressive disorderNucleus accumbensMuscarinic M5 receptorsSelective negative allosteric modulatorM5 muscarinic receptorsNegative allosteric modulatorsEffort-related choicePhasic DA releasePotential sex differencesSex-specific mannerACh toneVTA administrationCholinergic effectsMuscarinic receptorsFemale ratsTegmental areaPreclinical modelsDopamine releaseTherapeutic target
2012
The Role of Adenosine in the Ventral Striatal Circuits Regulating Behavioral Activation and Effort-Related Decision Making: Importance for Normal and Pathological Aspects of Motivation
Salamone J, Correa M, Randall P, Nunes E, Pardo M, Lopez-Cruz L. The Role of Adenosine in the Ventral Striatal Circuits Regulating Behavioral Activation and Effort-Related Decision Making: Importance for Normal and Pathological Aspects of Motivation. 2012, 493-512. DOI: 10.1007/978-1-4614-3903-5_23.Peer-Reviewed Original ResearchIntra-accumbens injectionsDA depletionReceptor antagonistAccumbens DA depletionsEffort-related processesAdenosine A2A receptor antagonistA1 receptor antagonistAdenosine A2A agonistDA D2 antagonistsA2A receptor antagonistsRole of adenosineAdenosine A2A receptorsEffort-related decision makingEffort-related choice behaviorBrain dopamineNeuromodulator adenosineD2 antagonistD2 antagonismA2A agonistNucleus accumbensStriatal circuitsTendency of ratsMotivational symptomsA2A receptorsPathological aspects
2010
Role of dopamineadenosine interactions in the brain circuitry regulating effort-related decision making: insights into pathological aspects of motivation
Salamone J, Correa M, Farrar A, Nunes E, Collins L. Role of dopamineadenosine interactions in the brain circuitry regulating effort-related decision making: insights into pathological aspects of motivation. Future Neurology 2010, 5: 377-392. DOI: 10.2217/fnl.10.19.Peer-Reviewed Original ResearchEffort-related processesDopamine depletionEffort-related decision makingEffort-related decisionTendency of ratsEffort-related choiceEnergy-related disordersActivational aspectsIntra-accumbens injectionsFood motivationBrain circuitryAccumbens dopamine depletionsBrain dopamineNeuromodulator adenosineMotivationNucleus accumbensPathological aspectsDecision makingDopamine DRecent evidenceAntagonistAdenosineAnergiaAspectsAccumbensNucleus accumbens and effort-related functions: behavioral and neural markers of the interactions between adenosine A2A and dopamine D2 receptors
Farrar A, Segovia K, Randall P, Nunes E, Collins L, Stopper C, Port R, Hockemeyer J, Müller C, Correa M, Salamone J. Nucleus accumbens and effort-related functions: behavioral and neural markers of the interactions between adenosine A2A and dopamine D2 receptors. Neuroscience 2010, 166: 1056-1067. PMID: 20096336, DOI: 10.1016/j.neuroscience.2009.12.056.Peer-Reviewed Original Research
2009
Intracerebroventricular administration of cannabinoid CB1 receptor antagonists AM251 and AM4113 fails to alter food-reinforced behavior in rats
Sink K, Segovia K, Nunes E, Collins L, Vemuri V, Thakur G, Makriyannis A, Salamone J. Intracerebroventricular administration of cannabinoid CB1 receptor antagonists AM251 and AM4113 fails to alter food-reinforced behavior in rats. Psychopharmacology 2009, 206: 223-232. PMID: 19588124, PMCID: PMC4425366, DOI: 10.1007/s00213-009-1602-8.Peer-Reviewed Original ResearchMeSH KeywordsAnalysis of VarianceAnimalsBehavior, AnimalConditioning, OperantDose-Response Relationship, DrugDrug Administration RoutesDrug InteractionsEatingFood DeprivationInjections, IntraventricularMaleMotor ActivityPiperidinesPyrazolesRatsRats, Sprague-DawleyReceptor, Cannabinoid, CB1Reinforcement ScheduleReinforcement, PsychologyConceptsFood-reinforced behaviorCB1 receptorsLocomotor suppressionFood-motivated behaviorCannabinoid CB1 receptorsCB1 neutral antagonistsSame dose rangeModulation of locomotionIntracerebroventricular administrationICV administrationLocus of actionLower brainstemReceptor transmissionPeripheral receptorsSystemic administrationLateral ventricleAppetite suppressantsNucleus accumbensAM251AM4113Inverse agonistNeutral antagonistsDose rangeAdministrationReceptors