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@ARTICLE{Tichelman:1014971,
author = {Tichelman, Naemi and Foerges, Anna L. and Elmenhorst,
Eva-Maria and Lange, Denise and Hennecke, Eva and Baur,
Diego M. and Beer, Simone and Kroll, Tina and Neumaier,
Bernd and Bauer, Andreas and Landolt, Hans-Peter and
Aeschbach, Daniel and Elmenhorst, David},
title = {{A} genetic variation in the adenosine {A}2{A} receptor
gene contributes to variability in oscillatory alpha power
in wake and sleep {EEG} and {A}1 adenosine receptor
availability in the human brain},
journal = {NeuroImage},
volume = {280},
issn = {1053-8119},
address = {Orlando, Fla.},
publisher = {Academic Press},
reportid = {FZJ-2023-03515},
pages = {120345 -},
year = {2023},
abstract = {The EEG alpha rhythm (∼ 8–13 Hz) is one of the most
salient human brain activity rhythms, modulated by the level
of attention and vigilance and related to cerebral energy
metabolism. Spectral power in the alpha range in wakefulness
and sleep strongly varies among individuals based on genetic
predisposition. Knowledge about the underlying genes is
scarce, yet small studies indicated that the variant
rs5751876 of the gene encoding A2A adenosine receptors
(ADORA2A) may contribute to the inter-individual variation.
The neuromodulator adenosine is directly linked to energy
metabolism as product of adenosine tri-phosphate breakdown
and acts as a sleep promoting molecule by activating A1 and
A2A adenosine receptors. We performed sleep and positron
emission tomography studies in 59 healthy carriers of
different rs5751876 alleles, and quantified EEG oscillatory
alpha power in wakefulness and sleep, as well as A1
adenosine receptor availability with 18F-CPFPX. Oscillatory
alpha power was higher in homozygous C-allele carriers (n =
27, 11 females) compared to heterozygous and homozygous
carriers of the T-allele (n(C/T) = 23, n(T/T) = 5, 13
females) (F(18,37) = 2.35, p = 0.014, Wilk's Λ = 0.487).
Furthermore, a modulatory effect of ADORA2A genotype on A1
adenosine receptor binding potential was found across all
considered brain regions (F(18,40) = 2.62, p = 0.006, Wilk's
Λ = 0.459), which remained significant for circumscribed
occipital region of calcarine fissures after correction for
multiple comparisons. In female participants, a correlation
between individual differences in oscillatory alpha power
and A1 receptor availability was observed. In conclusion, we
confirmed that a genetic variant of ADORA2A affects
individual alpha power, while a direct modulatory effect via
A1 adenosine receptors in females is suggested.},
cin = {INM-2 / INM-5},
ddc = {610},
cid = {I:(DE-Juel1)INM-2-20090406 / I:(DE-Juel1)INM-5-20090406},
pnm = {5253 - Neuroimaging (POF4-525)},
pid = {G:(DE-HGF)POF4-5253},
typ = {PUB:(DE-HGF)16},
pubmed = {37625500},
UT = {WOS:001070643100001},
doi = {10.1016/j.neuroimage.2023.120345},
url = {https://juser.fz-juelich.de/record/1014971},
}