PuSH - Publikationsserver des Helmholtz Zentrums München

Schlögl, H. ; Janssen, L.* ; Fasshauer, M.* ; Miehle, K.* ; Villringer, A.* ; Stumvoll, M. ; Mueller, K.*

Reward processing during monetary incentive delay task after leptin substitution in lipodystrophy-an fMRI case series.

J. Endocr. Soc. 7:bvad052 (2023)
Verlagsversion DOI PMC
Creative Commons Lizenzvertrag
CONTEXT: Behaviorally, the most pronounced effects of leptin substitution in leptin deficiency are the hunger-decreasing and postprandial satiety-prolonging effects of the adipokine. Previously, with functional magnetic resonance imaging (MRI), we and others showed that eating behavior-controlling effects are at least in part conveyed by the reward system. However, to date, it is unclear if leptin only modulates eating behavior specific brain reward action or if it also alters the reward function of the brain unrelated to eating behavior. OBJECTIVE: We investigated with functional MRI the effects of metreleptin on the reward system in a reward task unrelated to eating behavior, the monetary incentive delay task. DESIGN: Measurements in 4 patients with the very rare disease of lipodystrophy (LD), resulting in leptin deficiency, and 3 untreated healthy control persons were performed at 4 different time points: before start and over 12 weeks of metreleptin treatment. Inside the MRI scanner, participants performed the monetary incentive delay task and brain activity during the reward receipt phase of the trial was analyzed. RESULTS: We found a reward-related brain activity decrease in our 4 patients with LD over the 12 weeks of metreleptin treatment in the subgenual region, a brain area associated with the reward network, which was not observed in our 3 untreated healthy control persons. CONCLUSIONS: These results suggest that leptin replacement in LD induces changes of brain activity during reward reception processing completely unrelated to eating behavior or food stimuli. This could suggest eating behavior-unrelated functions of leptin in the human reward system. TRIAL REGISTRATION: The trial is registered as trial No. 147/10-ek at the ethics committee of the University of Leipzig and at the State Directorate of Saxony (Landesdirektion Sachsen).
Altmetric
Weitere Metriken?
[➜Einloggen]
Zusatzinfos bearbeiten [➜Einloggen]
Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Functional Mri ; Leptin ; Lipodystrophy ; Monetary Incentive Delay Task ; Reward System; Bayesian-inference; Brain; Increase; Weight
ISSN (print) / ISBN 2472-1972
e-ISSN 2472-1972
Zeitschrift Journal of the Endocrine Society
Quellenangaben Band: 7, Heft: 6, Seiten: , Artikelnummer: bvad052 Supplement: ,
Verlag Endocrine Society
Verlagsort 2055 L St Nw, Suite 600, Washington, Dc 20036 Usa
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Helmholtz Institute for Metabolism, Obesity and Vascular Research (HI-MAG)
Förderungen German Research Foundation within the program Open Access Publication Funding