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@ARTICLE{Backes:280871,
author = {Backes, Heiko and Walberer, Maureen and Ladwig, Anne and
Rueger, Maria A. and Neumaier, Bernd and Endepols, Heike and
Hoehn, Mathias and Fink, Gereon R. and Schroeter, Michael
and Graf, Rudolf},
title = {{G}lucose consumption of inflammatory cells masks metabolic
deficits in the brain},
journal = {NeuroImage},
volume = {128},
issn = {1053-8119},
address = {Orlando, Fla.},
publisher = {Academic Press},
reportid = {FZJ-2016-00582},
pages = {54 - 62},
year = {2016},
abstract = {Inflammatory cells such as microglia need energy to exert
their functions and to maintain their cellular integrity and
membrane potential. Subsequent to cerebral ischemia,
inflammatory cells infiltrate tissue with limited blood flow
where neurons and astrocytes died due to insufficient supply
with oxygen and glucose. Using dual tracer positron emission
tomography (PET), we found that concomitant with the
presence of inflammatory cells, transport and consumption of
glucose increased up to normal levels but returned to
pathological levels as soon as inflammatory cells
disappeared. Thus, inflammatory cells established sufficient
glucose supply to satisfy their energy demands even in
regions with insufficient supply for neurons and astrocytes
to survive. Our data suggest that neurons and astrocytes
died from oxygen deficiency and inflammatory cells
metabolized glucose non-oxidatively in regions with residual
availability. As a consequence, glucose metabolism of
inflammatory cells can mask metabolic deficits in
neurodegenerative diseases. We further found that the PET
tracer did not bind to inflammatory cells in severely
hypoperfused regions and thus only a part of the
inflammation was detected. We conclude that glucose
consumption of inflammatory cells should be taken into
account when analyzing disease-related alterations of local
cerebral metabolism.},
cin = {INM-3 / INM-5},
ddc = {610},
cid = {I:(DE-Juel1)INM-3-20090406 / I:(DE-Juel1)INM-5-20090406},
pnm = {572 - (Dys-)function and Plasticity (POF3-572)},
pid = {G:(DE-HGF)POF3-572},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000370386000006},
pubmed = {pmid:26747749},
doi = {10.1016/j.neuroimage.2015.12.044},
url = {https://juser.fz-juelich.de/record/280871},
}