Brain structural abnormalities in obesity: relation to age, genetic risk, and common psychiatric disorders : Evidence through univariate and multivariate mega-analysis including 6420 participants from the ENIGMA MDD working group

Nils Opel*, Anbupalam Thalamuthu, Yuri Milaneschi, Dominik Grotegerd, Claas Flint, Ramona Leenings, Janik Goltermann, Maike Richter, Tim Hahn, Georg Woditsch, Klaus Berger, Marco Hermesdorf, Andrew McIntosh, Heather C Whalley, Mathew A Harris, Frank P MacMaster, Henrik Walter, Ilya M Veer, Thomas Frodl, Angela CarballedoAxel Krug, Igor Nenadic, Tilo Kircher, Andre Aleman, Nynke A Groenewold, Dan J Stein, Jair C Soares, Giovana B Zunta-Soares, Benson Mwangi, Mon-Ju Wu, Martin Walter, Meng Li, Ben J Harrison, Christopher G Davey, Kathryn R Cullen, Bonnie Klimes-Dougan, Bryon A Mueller, Philipp G Sämann, Brenda Penninx, Laura Nawijn, Dick J Veltman, Lyubomir Aftanas, Ivan V Brak, Elena A Filimonova, Evgeniy A Osipov, Liesbeth Reneman, Anouk Schrantee, Hans J Grabe, Sandra Van der Auwera, Katharina Wittfeld, Norbert Hosten, Henry Völzke, Kang Sim, Ian H Gotlib, Matthew D Sacchet, Jim Lagopoulos, Sean N Hatton, Ian Hickie, Elena Pozzi, Paul M Thompson, Neda Jahanshad, Lianne Schmaal, Bernhard T Baune, Udo Dannlowski

*Bijbehorende auteur voor dit werk

Onderzoeksoutput: ArticleAcademicpeer review

36 Citaten (Scopus)
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Samenvatting

Emerging evidence suggests that obesity impacts brain physiology at multiple levels. Here we aimed to clarify the relationship between obesity and brain structure using structural MRI (n = 6420) and genetic data (n = 3907) from the ENIGMA Major Depressive Disorder (MDD) working group. Obesity (BMI > 30) was significantly associated with cortical and subcortical abnormalities in both mass-univariate and multivariate pattern recognition analyses independent of MDD diagnosis. The most pronounced effects were found for associations between obesity and lower temporo-frontal cortical thickness (maximum Cohen´s d (left fusiform gyrus) = -0.33). The observed regional distribution and effect size of cortical thickness reductions in obesity revealed considerable similarities with corresponding patterns of lower cortical thickness in previously published studies of neuropsychiatric disorders. A higher polygenic risk score for obesity significantly correlated with lower occipital surface area. In addition, a significant age-by-obesity interaction on cortical thickness emerged driven by lower thickness in older participants. Our findings suggest a neurobiological interaction between obesity and brain structure under physiological and pathological brain conditions.

Originele taal-2English
Pagina's (van-tot)4839-4852
Aantal pagina's14
TijdschriftMolecular Psychiatry
Volume26
Vroegere onlinedatum2020
DOI's
StatusPublished - sep.-2021

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