2016
Interaction between the obesity-risk gene FTO and the dopamine D2 receptor gene ANKK1/TaqIA on insulin sensitivity
Heni M, Kullmann S, Ahlqvist E, Wagner R, Machicao F, Staiger H, Häring HU, Almgren P, Groop LC, Small DM, Fritsche A, Preissl H. Interaction between the obesity-risk gene FTO and the dopamine D2 receptor gene ANKK1/TaqIA on insulin sensitivity. Diabetologia 2016, 59: 2622-2631. PMID: 27600277, DOI: 10.1007/s00125-016-4095-0.Peer-Reviewed Original ResearchMeSH KeywordsAdipose TissueAdministration, IntranasalAdultAlpha-Ketoglutarate-Dependent Dioxygenase FTOFemaleGenetic Predisposition to DiseaseGenotypeGlucose Tolerance TestHumansInsulinInsulin ResistanceMagnetic Resonance SpectroscopyMaleMiddle AgedObesityPolymorphism, Single NucleotideProtein Serine-Threonine KinasesReceptors, Dopamine D2ConceptsInsulin sensitivityReceptor densityCaudate nucleusDopamine D2 receptor densityFTO obesity-risk alleleANKK1 polymorphismCentral insulin sensitivityIntranasal insulin administrationPeripheral insulin sensitivityBrain insulin sensitivityRisk of obesityDopamine receptor densityD2 receptor availabilityObesity risk allelesD2 receptor densityTübingen Family studyMalmö DietWaist circumferenceFTO SNP rs8050136FTO variationInsulin administrationD2 receptorsFood intakeBody fatBody composition
2010
Genetically Determined Differences in Brain Response to a Primary Food Reward
Felsted JA, Ren X, Chouinard-Decorte F, Small DM. Genetically Determined Differences in Brain Response to a Primary Food Reward. Journal Of Neuroscience 2010, 30: 2428-2432. PMID: 20164326, PMCID: PMC2831082, DOI: 10.1523/jneurosci.5483-09.2010.Peer-Reviewed Original ResearchConceptsBrain responsesPrimary food rewardFunctional magnetic resonanceTaqIA A1 alleleOrbital frontal cortexReward driveIndividual differencesNeural responsesFuture weight gainFood rewardPalatable foodNeuroimaging techniquesPerceptual responsesBiological underpinningsIndividual factorsFrontal cortexImpulsivityDiminished dopamineSimilar ratingsFood reinforcementRewardSpecific associationNeurophysiologyMilkshakeBody mass index