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@PHDTHESIS{Kasper:1038908,
author = {Kasper, Jan},
title = {{A}nalyse der {A}uswirkungen von {A}lterung,
{N}eurodegeneration und {D}epression auf die mittels
{M}agnetresonanztomographie gemessene {H}irnfunktion},
school = {HHU Düsseldorf},
type = {Dissertation},
reportid = {FZJ-2025-01716},
pages = {192},
year = {2024},
note = {Dissertation, HHU Düsseldorf, 2024},
abstract = {In recent decades, the scientific community has made
progress in mapping the functionalorganization of the human
brain. Functional alterations in the typical aging process
and in severalneurodegenerative diseases, as well as their
pathological pathways, have been identified. However,many
underlying (patho-)mechanisms remain unclear, the knowledge
of which could pave the wayfor new diagnostic biomarkers and
therapeutical targets. Multimodal associations, such as
spatialcorrelations (co-localizations) between neurochemical
properties and alterations in brain function orstructure,
provide insights into biological entities that may be
particularly affected by the agingprocess or related
neurological diseases. Additionally, such associations
themselves could serve asdiagnostic or prognostic biomarkers
for brain diseases. In contrast to neurological diseases,
theeffects of psychiatric diseases such as depression on the
functional organization of the brain have notyet been
conclusively clarified, which is partly due to the
heterogeneity of the clinical picture. Withthe help of large
data sets, this obstacle could be overcome and changes in
the brain could be mappedin a level of detail that has not
yet been achieved in studies with smaller sample sizes. In
the threestudies presented here, data from resting-state
functional magnetic resonance imaging (resting-statefMRI)
were used to investigate the regional characteristics of
age-related typical and pathologicalbrain alterations in
people with Huntington’s disease, Parkinson’s disease,
and experience ofdepression. In the first two studies, the
local functional alterations in the typical aging process
and intwo neurodegenerative diseases were mapped.
Associations of these alterations with other neuronaland
clinical data provided indications of potential particularly
vulnerable cells and biomarkers ofdisease severity. In the
third study, we examined how various criteria of experienced
depression affectbrain function and structure and identified
the criteria most strongly associated with brain
alterations.The results suggested specific neurochemical
properties that may influence neuronal alterations
indifferent conditions, aiding our understanding of the
studied neurodegenerative diseases and agingprocesses, and
potentially supporting the future development of new
pharmacotherapies. Depressioncriteria that were identified
as most strongly associated with functional changes may
indicate apersistent effect of depression or its treatment
on brain function and should be considered whenplanning
future studies on depression.},
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)},
pid = {G:(DE-HGF)POF4-5251 / G:(DE-HGF)POF4-5252},
typ = {PUB:(DE-HGF)11},
doi = {10.34734/FZJ-2025-01716},
url = {https://juser.fz-juelich.de/record/1038908},
}