2023
Blunted neural reward response to alcohol and greater alcohol motivation in binge drinkers in a randomized clinical experiment
Blaine S, Fogelman N, Lacadie C, Constable T, Sinha R. Blunted neural reward response to alcohol and greater alcohol motivation in binge drinkers in a randomized clinical experiment. Alcohol Clinical And Experimental Research 2023, 47: 1067-1078. PMID: 37070596, PMCID: PMC10289130, DOI: 10.1111/acer.15082.Peer-Reviewed Original ResearchAlcohol taste testFunctional magnetic resonance imagingAlcohol motivationSupplementary motor areaOrbitofrontal cortexInferior frontal gyrus regionsPerfusion functional magnetic resonance imagingEnhanced neural responseNeural reward responsesMedial orbitofrontal cortexPlacebo sessionAlcohol use disorderBrain reward regionsPlacebo-controlled effectsNeural processesOFC responsesReward responsesNeural responsesPlacebo beerSocial drinkersCerebral blood flowReward regionsBD relativeVentral striatumAlcohol effects
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
2013
Effects of Fructose vs Glucose on Regional Cerebral Blood Flow in Brain Regions Involved With Appetite and Reward Pathways
Page KA, Chan O, Arora J, Belfort-DeAguiar R, Dzuira J, Roehmholdt B, Cline GW, Naik S, Sinha R, Constable RT, Sherwin RS. Effects of Fructose vs Glucose on Regional Cerebral Blood Flow in Brain Regions Involved With Appetite and Reward Pathways. JAMA 2013, 309: 63-70. PMID: 23280226, PMCID: PMC4076145, DOI: 10.1001/jama.2012.116975.Peer-Reviewed Original ResearchConceptsRegional cerebral blood flowCerebral blood flowGlucose ingestionFructose ingestionFructose consumptionBlood flowGlucagon-like polypeptide-1Weight gainRegional CBF changesPrevalence of obesityHigh-fructose dietHealthy adult volunteersLower peak levelsConsumption of fructoseMagnetic resonance imaging sessionPosterior cingulate cortexWhole-brain analysisEffects of fructoseFunctional connectivity analysisSatiety hormonesSecondary outcomesDrink ingestionSystemic glucoseVoxel-level analysisInsulin resistance