2018
Hyperinsulinemia Invokes Greater Brain Perfusion in Reward and Motivation Regions in Obesity
GROSKREUTZ D, SINHA R, LACADIE C, LAM W, HAMZA M, SCHMIDT C, SEO D, HWANG J, BELFORT-DEAGUIAR R, LEVENTHAL J, ROSENBERG S, PARIKH L, CONSTABLE T, SHERWIN R, JASTREBOFF A. Hyperinsulinemia Invokes Greater Brain Perfusion in Reward and Motivation Regions in Obesity. Diabetes 2018, 67 DOI: 10.2337/db18-365-or.Peer-Reviewed Original ResearchCerebral blood flowElevated insulin levelsInsulin levelsFunctional magnetic resonance imagingLean humansObese humansHour oral glucose tolerance testOral glucose tolerance testSetting of hyperinsulinemiaGlucose tolerance testEuglycemic hyperinsulinemic clampEffect of hyperinsulinemiaAnterior cingulate cortexMagnetic resonance imagingWhole-brain analysisFood-seeking behaviorMiddle temporal gyrusMannKind CorporationCBF responseCNS effectsSatiety factorTolerance testBrain perfusionOB groupLN group
2016
Altered Brain Response to Drinking Glucose and Fructose in Obese Adolescents
Jastreboff AM, Sinha R, Arora J, Giannini C, Kubat J, Malik S, Van Name MA, Santoro N, Savoye M, Duran EJ, Pierpont B, Cline G, Constable RT, Sherwin RS, Caprio S. Altered Brain Response to Drinking Glucose and Fructose in Obese Adolescents. Diabetes 2016, 65: 1929-1939. PMID: 27207544, PMCID: PMC5384636, DOI: 10.2337/db15-1216.Peer-Reviewed Original ResearchConceptsObese adolescentsLean adolescentsGlucose ingestionInsulin levelsBrain perfusionBrain regionsSugar-sweetened beverage consumptionAltered brain responsesHedonic brain regionsHippocampal blood flowFurther weight gainFructose ingestionAcyl ghrelinAttenuated suppressionFructose consumptionPerfusion responseBlood flowBrain adaptationBeverage consumptionGreater perfusionPerfusionVentral striatumFunctional MRIWeight gainIngestion
2013
Neural Correlates of Stress- and Food Cue–Induced Food Craving in Obesity Association with insulin levels
Jastreboff AM, Sinha R, Lacadie C, Small DM, Sherwin RS, Potenza MN. Neural Correlates of Stress- and Food Cue–Induced Food Craving in Obesity Association with insulin levels. Diabetes Care 2013, 36: 394-402. PMID: 23069840, PMCID: PMC3554293, DOI: 10.2337/dc12-1112.Peer-Reviewed Original ResearchConceptsFood cuesFood cravingsStress cuesBrain responsesSubjective food cravingsFavorite-food cuesBrain regionsInsulin levelsNeural correlatesBrain activationHOMA-IRObese individualsInsulin sensitivityFood motivationNeural activityFunctional MRICuesCravingHOMA-IR levelsNeurocircuitryLean subjectsInsulin resistanceLean individualsObesity associationHypothalamic regions