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@INPROCEEDINGS{MalekiBalajoo:905317,
author = {Maleki Balajoo, Somayeh and Eickhoff, Simon and Kharabian,
Shahrzad and Plachti, Anna and Waite, Laura and
Hoffstaedter, Felix and Palomero-Gallagher, Nicola and
GENON, Sarah},
title = {{H}ippocampal metabolic subregions and networks:
behavioral, molecular and pathological aging profiles},
reportid = {FZJ-2022-00588},
year = {2021},
abstract = {Hippocampal dysfunction happens across many
neuropsychiatric disorders and is the hallmark of
Alzheimer’s disease (AD) with evidenced metabolic
alterations. Based on hippocampal-brain metabolic covariance
in a healthy elderly cohort, we found a differentiation into
primarily anterior vs. posterior and secondarily CA vs.
subiculum subregions. Characterizing the associated
metabolic networks revealed that the anterior-subiculum
network including temporal-pole and orbitofrontal regions
relates to self, motivation and mentalizing behavior and is
influenced by dopaminergic systems. In contrast, the
posterior-subiculum shows a wide cortical network engaged in
action- and world-oriented cognition targeted by
serotoninergic systems. The anterior- and posterior-CA,
connected respectively to amygdala and broader subcortical
networks, are associated to several transporters release.
Local metabolism comparison between AD-related diagnosis
groups revealed early CA’s alterations while posterior
subicular alterations appear at advanced stages in line with
broader cortical atrophy and behavioral dysfunctions. Future
studies should delineate patients’ individual profiles
according to hippocampal subregions and networks.},
month = {Oct},
date = {2021-10-05},
organization = {NM $\&$ IBI Retreat, Virtual
(Germany), 5 Oct 2021 - 6 Oct 2021},
cin = {INM-7},
cid = {I:(DE-Juel1)INM-7-20090406},
pnm = {5251 - Multilevel Brain Organization and Variability
(POF4-525) / 5252 - Brain Dysfunction and Plasticity
(POF4-525) / 5253 - Neuroimaging (POF4-525)},
pid = {G:(DE-HGF)POF4-5251 / G:(DE-HGF)POF4-5252 /
G:(DE-HGF)POF4-5253},
typ = {PUB:(DE-HGF)1},
url = {https://juser.fz-juelich.de/record/905317},
}