2021
Dietary lipids as regulators of reward processes: multimodal integration matters
Berland C, Small DM, Luquet S, Gangarossa G. Dietary lipids as regulators of reward processes: multimodal integration matters. Trends In Endocrinology And Metabolism 2021, 32: 693-705. PMID: 34148784, DOI: 10.1016/j.tem.2021.05.008.Peer-Reviewed Original ResearchConceptsDietary lipidsFunctional modulatorsModern food environmentLipid sensingPalatable dietObesity pandemicDopamine transmissionDA circuitsFeeding behaviorBody homeostasisDA signalingReward circuitRecent findingsDA systemEnergy-related signalsGenetic conditionsFood environmentFood overconsumptionNeural substratesLipidsRecent reportsSignalingRegulatorHomeostasisReward processes
2018
Food Intake Recruits Orosensory and Post-ingestive Dopaminergic Circuits to Affect Eating Desire in Humans
Thanarajah SE, Backes H, DiFeliceantonio AG, Albus K, Cremer AL, Hanssen R, Lippert RN, Cornely OA, Small DM, Brüning JC, Tittgemeyer M. Food Intake Recruits Orosensory and Post-ingestive Dopaminergic Circuits to Affect Eating Desire in Humans. Cell Metabolism 2018, 29: 695-706.e4. PMID: 30595479, DOI: 10.1016/j.cmet.2018.12.006.Peer-Reviewed Original ResearchConceptsDopaminergic circuitsHigher cognitive centersSegregated brain regionsPeripheral physiological signalsPalatable food intakeReward valueDopamine releaseCognitive centersSubjective desireBrain regionsBrain areasUnderlying reinforcementFood intakeDorsal striatumRole of brainPhysiological signalsFood selection behaviorIntegrative pathwaysFMRIDesirePET methodBrainHumansIntakeSelection behaviorDopamine and diet-induced obesity
DiFeliceantonio AG, Small DM. Dopamine and diet-induced obesity. Nature Neuroscience 2018, 22: 1-2. PMID: 30559474, DOI: 10.1038/s41593-018-0304-0.Peer-Reviewed Original Research
2017
DRD2: Bridging the Genome and Ingestive Behavior
Sun X, Luquet S, Small DM. DRD2: Bridging the Genome and Ingestive Behavior. Trends In Cognitive Sciences 2017, 21: 372-384. PMID: 28372879, PMCID: PMC5745142, DOI: 10.1016/j.tics.2017.03.004.Peer-Reviewed Original ResearchConceptsGenetic variantsCommon gene variantsMetabolic dysfunctionNeurocognitive impairmentAppetitive functionsDA signalingCognitive declinePolygenic obesityBrain structures× environment interactionGene variantsConfer riskIngestive behaviorGene × environment interactionsNeurotransmitter dopamineObesityCognitive changesDopamineMetabolic signalsEnvironment interactionPivotal roleRiskSignalingFeedingDysfunction
2008
Relation Between Obesity and Blunted Striatal Response to Food Is Moderated by TaqIA A1 Allele
Stice E, Spoor S, Bohon C, Small DM. Relation Between Obesity and Blunted Striatal Response to Food Is Moderated by TaqIA A1 Allele. Science 2008, 322: 449-452. PMID: 18927395, PMCID: PMC2681095, DOI: 10.1126/science.1161550.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAllelesBasal GangliaBody Mass IndexCaudate NucleusCorpus StriatumCuesDeoxyribonucleases, Type II Site-SpecificDopamineEatingFemaleFoodHumansHyperphagiaMagnetic Resonance ImagingObesityPolymorphism, Restriction Fragment LengthPutamenReceptors, Dopamine D2Regression AnalysisRewardSignal TransductionWeight GainConceptsDorsal striatumTaqIA restriction fragment length polymorphismConsummatory food rewardMagnetic resonance imaging studyStriatal dopamine receptorsDevelopment of obesityA1 alleleResonance imaging studyFunctional magnetic resonance imaging studyDopamine D2 receptor geneTaqIA A1 alleleObese individualsStriatal dopamineD2 receptor geneProspective dataLean individualsDopamine receptorsFood intakeStriatumImaging studiesStriatal responsesStriatal activationGenetic polymorphismsReceptor geneObesity
2003
Feeding-induced dopamine release in dorsal striatum correlates with meal pleasantness ratings in healthy human volunteers
Small DM, Jones-Gotman M, Dagher A. Feeding-induced dopamine release in dorsal striatum correlates with meal pleasantness ratings in healthy human volunteers. NeuroImage 2003, 19: 1709-1715. PMID: 12948725, DOI: 10.1016/s1053-8119(03)00253-2.Peer-Reviewed Original ResearchConceptsDopamine releasePositron emission tomography scanEmission tomography scanHealthy human volunteersHunger/fullnessFavorite mealAmount of dopamineDorsal putamenStriatum correlatesTomography scanHealthy subjectsCaudate nucleusPleasantness ratingsHuman volunteersVentral striatumScan subjectsStriatumHungry stateSignificant reductionSignificant changesPET dataMealParametric mapsSubjectsCorrelates