2016
Elevated Dopamine D2/3 Receptor Availability in Obese Individuals: A PET Imaging Study with [11C](+)PHNO
Gaiser EC, Gallezot JD, Worhunsky PD, Jastreboff AM, Pittman B, Kantrovitz L, Angarita GA, Cosgrove KP, Potenza MN, Malison RT, Carson RE, Matuskey D. Elevated Dopamine D2/3 Receptor Availability in Obese Individuals: A PET Imaging Study with [11C](+)PHNO. Neuropsychopharmacology 2016, 41: 3042-3050. PMID: 27374277, PMCID: PMC5101552, DOI: 10.1038/npp.2016.115.Peer-Reviewed Original ResearchConceptsBody mass indexVentral striatumObese individualsD2/3R availabilityOB individualsReward regionsSubstantia nigra/ventral tegmental areaDopamine D2/3 receptor availabilityNormal-weight individualsTreatment of obesityVentral tegmental areaNovel pharmacologic targetsD2/3 receptor availabilitySN/VTAAgonist tracersOverweight cohortMass indexWeight individualsTegmental areaBrain reward regionsAntagonist tracersPharmacologic targetReceptor availabilitySecondary analysisNW individualsFunctional Connectivity During Exposure to Favorite-Food, Stress, and Neutral-Relaxing Imagery Differs Between Smokers and Nonsmokers
Garrison KA, Sinha R, Lacadie CM, Scheinost D, Jastreboff AM, Constable RT, Potenza MN. Functional Connectivity During Exposure to Favorite-Food, Stress, and Neutral-Relaxing Imagery Differs Between Smokers and Nonsmokers. Nicotine & Tobacco Research 2016, 18: 1820-1829. PMID: 26995796, PMCID: PMC4978981, DOI: 10.1093/ntr/ntw088.Peer-Reviewed Original ResearchConceptsFunctional connectivityBrain regionsSupramarginal gyrusFavorite-food cuesSmoking-related alterationsMagnetic resonance imaging studyBrain functional connectivity patternsPrevious functional magnetic resonance imaging (fMRI) studiesTobacco use disorderBrain networksIntrinsic connectivity distributionResonance imaging studyFunctional magnetic resonance imaging studyFunctional connectivity patternsMultiple brain networksSmoking cessationNonsmokersPosterior insulaRolandic operculumSmokersFunctional brain networksImaging studiesGreater connectivityNeural responsesRecent reports
2014
Leptin Is Associated With Exaggerated Brain Reward and Emotion Responses to Food Images in Adolescent Obesity
Jastreboff AM, Lacadie C, Seo D, Kubat J, Van Name MA, Giannini C, Savoye M, Constable RT, Sherwin RS, Caprio S, Sinha R. Leptin Is Associated With Exaggerated Brain Reward and Emotion Responses to Food Images in Adolescent Obesity. Diabetes Care 2014, 37: 3061-3068. PMID: 25139883, PMCID: PMC4207200, DOI: 10.2337/dc14-0525.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentBrainBrain MappingCase-Control StudiesChildCuesEmotionsFemaleFoodHumansLeptinMagnetic Resonance ImagingMaleMotivationPediatric ObesityRewardConceptsLow-calorie foodsBrain responsesFood imagesEmotion processingEmotion responsesAdolescent brainNeural responsesNeural activationHigh-calorie food consumptionFood cravingsNeural alterationsBrain rewardFunctional MRIAdolescent obesityRisk of overconsumptionAdolescentsObesity-related metabolic changesEndogenous leptin levelsFood advertisingMetabolic changesYouthDevelopment of obesityType 2 diabetesLean adolescentsNation's youthBlunted striatal responses to favorite-food cues in smokers
Jastreboff AM, Sinha R, Lacadie CM, Balodis IM, Sherwin R, Potenza MN. Blunted striatal responses to favorite-food cues in smokers. Drug And Alcohol Dependence 2014, 146: 103-106. PMID: 25444233, PMCID: PMC4272899, DOI: 10.1016/j.drugalcdep.2014.09.006.Peer-Reviewed Original ResearchConceptsFavorite-food cuesNeural responsesNeutral-relaxing conditionsBody mass indexCue exposureBrain mechanismsRewarding stimuliBrain responsesStriatal responsesCuesDiminished activationLower body mass indexLean body massSmoking cessationMass indexSmoking statusFMRIInsulaSmokersWeight gainStimuliRatingsAudiotapesCaudateBody mass