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  Self-reported intake of high-fat and high-sugar diet is not associated with cognitive stability and flexibility in healthy men

Hartmann, H., Janssen, L. K., Herzog, N., Morys, F., Fängström, D., Fallon, S. J., et al. (2023). Self-reported intake of high-fat and high-sugar diet is not associated with cognitive stability and flexibility in healthy men. Appetite, 183: 106477. doi:10.1016/j.appet.2023.106477.

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 Urheber:
Hartmann, Hendrik1, 2, 3, Autor                 
Janssen, Lieneke K.1, 4, Autor
Herzog, Nadine2, Autor                 
Morys, Filip5, Autor
Fängström, Daniel3, Autor
Fallon, Sean J.6, Autor
Horstmann, Annette1, 2, 3, Autor                 
Affiliations:
1Collaborative Research Center Obesity Mechanisms, Institute of Biochemistry, University of Leipzig, Germany, ou_persistent22              
2Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634549              
3Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Finland, ou_persistent22              
4Institute of Psychology, Otto von Guericke University Magdeburg, Germany, ou_persistent22              
5Montreal Neurological Institute and Hospital, McGill University, QC, Canada, ou_persistent22              
6University of Plymouth, United Kingdom, ou_persistent22              

Inhalt

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Schlagwörter: High fat diet; High sugar diet; Dopamine; Working memory; Humans; Cognition
 Zusammenfassung: Animal studies indicate that a high-fat/high-sugar diet (HFS) can change dopamine signal transmission in the brain, which could promote maladaptive behavior and decision-making. Such diet-induced changes may also explain observed alterations in the dopamine system in human obesity. Genetic variants that modulate dopamine transmission have been proposed to render some individuals more prone to potential effects of HFS. The objective of this study was to investigate the association of HFS with dopamine-dependent cognition in humans and how genetic variations might modulate this potential association. Using a questionnaire assessing the self-reported consumption of high-fat/high-sugar foods, we investigated the association with diet by recruiting healthy young men that fall into the lower or upper end of that questionnaire (low fat/sugar group: LFS, n = 45; high fat/sugar group: HFS, n = 41) and explored the interaction of fat and sugar consumption with COMT Val158Met and Taq1A genotype. During functional magnetic resonance imaging (fMRI) scanning, male participants performed a working memory (WM) task that probes distractor-resistance and updating of WM representations. Logistic and linear regression models revealed no significant difference in WM performance between the two diet groups, nor an interaction with COMT Val158Met or Taq1A genotype. Neural activation in task-related brain areas also did not differ between diet groups. Independent of diet group, higher BMI was associated with lower overall accuracy on the WM task. This cross-sectional study does not provide evidence for diet-related differences in WM stability and flexibility in men, nor for a predisposition of COMT Val158Met or Taq1A genotype to the hypothesized detrimental effects of an HFS diet. Previously reported associations of BMI with WM seem to be independent of HFS intake in our male study sample.

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Sprache(n): eng - English
 Datum: 2023-01-192022-07-052023-01-272023-02-082023-04-01
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1016/j.appet.2023.106477
Anderer: epub 2023
PMID: 36764221
 Art des Abschluß: -

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Projektinformation

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Projektname : CRC 1052 Obesity mechanisms
Grant ID : -
Förderprogramm : -
Förderorganisation : German Research Foundation (DFG)
Projektname : IFB AdiposityDiseases
Grant ID : 01E01001
Förderprogramm : -
Förderorganisation : Federal Ministry of Education and Research (BMBF)
Projektname : -
Grant ID : -
Förderprogramm : -
Förderorganisation : Max Planck Institute for Human and Cognitive Brain Sciences, Leipzig

Quelle 1

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Titel: Appetite
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: London : Academic Press
Seiten: - Band / Heft: 183 Artikelnummer: 106477 Start- / Endseite: - Identifikator: ISSN: 0195-6663
CoNE: https://pure.mpg.de/cone/journals/resource/954922648093