Leptin Is Associated With Exaggerated Brain Reward and Emotion Responses to Food Images in Adolescent Obesity Featured Article: Ania M. Jastreboff, Cheryl.

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Leptin Is Associated With Exaggerated Brain Reward and Emotion Responses to Food Images in Adolescent Obesity Featured Article: Ania M. Jastreboff, Cheryl Lacadie, Dongju Seo, Jessica Kubat, Michelle A. Van Name, Cosimo Giannini, Mary Savoye, R. Todd Constable, Robert S. Sherwin, Sonia Caprio, and Rajita Sinha Diabetes Care Volume 37: November, 2014

STUDY OBJECTIVE Obese adults exhibit increased brain responses to food images in motivation-reward pathways Neural alterations may be attributed to obesity-related metabolic changes It is not known whether these metabolic changes affect neural responses in the adolescent brain during a crucial period for establishing healthy eating behaviors Jastreboff A. M. et al. Diabetes Care 2014;37:

STUDY DESIGN AND METHODS 25 obese and 15 lean adolescents underwent functional MRI during exposure to high-calorie food (HCF), low-calorie food (LCF), and nonfood (NF) visual stimuli 2 h after isocaloric meal consumption Jastreboff A. M. et al. Diabetes Care 2014;37:

RESULTS Brain responses to HCF relative to NF cues increased in obese versus lean adolescents in striatal-limbic regions Higher endogenous leptin levels correlated with increased neural activation to HCF images in all subjects Jastreboff A. M. et al. Diabetes Care 2014;37:

CONCLUSIONS Dysfunctional leptin signaling may contribute to the risk of overconsumption of foods, thus further predisposing adolescents to the development of obesity and type 2 diabetes Jastreboff A. M. et al. Diabetes Care 2014;37: