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Open Access Green as soon as Postprint is submitted to ZB.
Oxytocin reduces reward-driven food intake in humans.
Diabetes 62, 3418-3425 (2013)
Experiments in animals suggest that the neuropeptide oxytocin acts as an anorexigenic signal in the central nervous control of food intake. In humans, however, research has almost exclusively focused on the involvement of oxytocin in the regulation of social behavior. We investigated the effect of intranasal oxytocin on ingestion and metabolic function in healthy men. Food intake in the fasted state was examined 45 min after neuropeptide administration, followed by the assessment of olfaction and reward-driven snack intake in the absence of hunger. Energy expenditure was registered by indirect calorimetry, and blood was repeatedly sampled to determine concentrations of blood glucose and hormones. Oxytocin markedly reduced snack consumption, restraining, in particular, the intake of chocolate cookies by 25%. Oxytocin, moreover, attenuated basal and postprandial levels of adrenocorticotropic hormone and cortisol and curbed the meal-related rise in plasma glucose. Energy expenditure and hunger-driven food intake as well as olfactory function were not affected. Our results indicate that oxytocin, beyond its role in social bonding, regulates nonhomeostatic, reward-related energy intake, hypothalamic-pituitary-adrenal axis activity, and the glucoregulatory response to food intake in humans. These effects can be assumed to converge with the psychosocial function of oxytocin and imply possible applications in the treatment of metabolic disorders.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Paraventricular Nucleus ; Intranasal Oxytocin ; Psychosocial Stress ; Dose-response ; Human Brain ; Cortisol ; Obesity ; Insulin ; Satiety ; Neurons
ISSN (print) / ISBN
0012-1797
e-ISSN
1939-327X
Journal
Diabetes
Quellenangaben
Volume: 62,
Issue: 10,
Pages: 3418-3425
Publisher
American Diabetes Association
Publishing Place
Alexandria, VA.
Non-patent literature
Publications
Reviewing status
Peer reviewed