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@ARTICLE{Dong:1024146,
author = {Dong, Debo and Chen, Ximei and Li, Wei and Gao, Xiao and
Wang, Yulin and Zhou, Feng and Eickhoff, Simon B. and Chen,
Hongzhu},
title = {{O}pposite changes in morphometric similarity of medial
reward and lateral non-reward orbitofrontal cortex circuits
in obesity},
journal = {NeuroImage},
volume = {290},
issn = {1053-8119},
address = {Orlando, Fla.},
publisher = {Academic Press},
reportid = {FZJ-2024-01988},
pages = {120574 -},
year = {2024},
abstract = {Obesity has a profound impact on metabolic health thereby
adversely affecting brain structure and function. However,
the majority of previous studies used a single structural
index to investigate the link between brain structure and
body mass index (BMI), which hinders our understanding of
structural covariance between regions in obesity. This study
aimed to examine the relationship between macroscale
cortical organization and BMI using novel morphometric
similarity networks (MSNs). The individual MSNs were first
constructed from individual eight multimodal cortical
morphometric features between brain regions. Then the
relationship between BMI and MSNs within the discovery
sample of 434 participants was assessed. The key findings
were further validated in an independent sample of 192
participants. We observed that the lateral non-reward
orbitofrontal cortex (lOFC) exhibited decoupling (i.e.,
reduction in integration) in obesity, which was mainly
manifested by its decoupling with the cognitive systems
(i.e., DMN and FPN) while the medial reward orbitofrontal
cortex (mOFC) showed de-differentiation (i.e., decrease in
distinctiveness) in obesity, which was mainly represented by
its de-differentiation with the cognitive and attention
systems (i.e., DMN and VAN). Additionally, the lOFC showed
de-differentiation with the visual system in obesity, while
the mOFC showed decoupling with the visual system and
hyper-coupling with the sensory-motor system in obesity. As
an important first step in revealing the role of underlying
structural covariance in body mass variability, the present
study presents a novel mechanism that underlies the
reward-control interaction imbalance in obesity, thus can
inform future weight-management approaches.},
cin = {INM-7},
ddc = {610},
cid = {I:(DE-Juel1)INM-7-20090406},
pnm = {5251 - Multilevel Brain Organization and Variability
(POF4-525) / 5252 - Brain Dysfunction and Plasticity
(POF4-525)},
pid = {G:(DE-HGF)POF4-5251 / G:(DE-HGF)POF4-5252},
typ = {PUB:(DE-HGF)16},
pubmed = {38467346},
UT = {WOS:001211284200001},
doi = {10.1016/j.neuroimage.2024.120574},
url = {https://juser.fz-juelich.de/record/1024146},
}