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Semeia, L. ; Veit, R. ; Zhao, S. ; Luo, S.* ; Angelo, B.* ; Birkenfeld, A.L. ; Preissl, H. ; Xiang, A.H.* ; Kullmann, S. ; Page, K.A.*

Influence of insulin sensitivity on food cue evoked functional brain connectivity in children.

Neuroimage 310:121154 (2025)
Publ. Version/Full Text Research data DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
OBJECTIVE: Insulin resistance during childhood is a risk factor for developing type 2 diabetes and other health problems later in life. Studies in adults have shown that insulin resistance affects regional and network activity in the brain which are vital for behavior, e.g. ingestion and metabolic control. To date, no study has investigated whether brain responses to food cues in children are associated with peripheral insulin sensitivity. METHODS: We included 53 children (36 girls) between the age of 7-11 years, who underwent an oral Glucose Tolerance Test (oGTT) to estimate peripheral insulin sensitivity (ISI). Brain responses were measured using functional magnetic resonance imaging (fMRI) before and after glucose ingestion. We compared food-cue task-based activity and functional connectivity (FC) between children with low and high ISI, adjusted for age and BMIz. RESULTS: Independent of prandial state (i.e., glucose ingestion), children with lower ISI showed higher FC between the anterior insula and caudate and lower FC between the posterior insula and mid temporal cortex than children with higher ISI. Sex differences were found based on prandial state and peripheral insulin sensitivity in the insular FC. No differences were found on whole-brain food-cue reactivity. CONCLUSIONS: Children with low peripheral insulin sensitivity showed differences in food cue evoked response particularly in insula functional connectivity. These differences might influence eating behavior and future risk of developing diabetes.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Children ; Fmri ; Food Cue ; Functional Connectivity ; Insulin Sensitivity; Reward; Obesity; Activation; Amygdala; Network; System; Age
Language english
Publication Year 2025
HGF-reported in Year 2025
ISSN (print) / ISBN 1053-8119
e-ISSN 1095-9572
Quellenangaben Volume: 310, Issue: , Pages: , Article Number: 121154 Supplement: ,
Publisher Elsevier
Publishing Place 525 B St, Ste 1900, San Diego, Ca 92101-4495 Usa
Reviewing status Peer reviewed
POF-Topic(s) 90000 - German Center for Diabetes Research
Research field(s) Helmholtz Diabetes Center
PSP Element(s) G-502400-001
Grants Add-on Fellowship of the Joachim Herz Foundation
Scopus ID 105001321327
PubMed ID 40101866
PubMed ID 38405878
Erfassungsdatum 2025-03-18