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@ARTICLE{Ung:155682,
author = {Ung, Marie-Claire and Garrett, Lillian and Dalke, Claudia
and Leitner, Valentin and Dragosa, Daniel and Hladik,
Daniela and Neff, Frauke and Wagner, Florian and
Zitzelsberger, Horst and Miller, Gregor and de Angelis,
Martin Hrabě and Rößler, Ute and Vogt Weisenhorn, Daniela
and Wurst, Wolfgang and Graw, Jochen and Hölter, Sabine M},
title = {{D}ose-dependent long-term effects of a single radiation
event on behaviour and glial cells.},
journal = {International journal of radiation biology},
volume = {97},
number = {2},
issn = {1362-3095},
address = {Abingdon},
publisher = {Informa Healthcare},
reportid = {DZNE-2021-00850},
pages = {156 - 169},
year = {2021},
note = {ISSN 1362-3095 not unique: **2 hits**.},
abstract = {The increasing use of low-dose ionizing radiation in
medicine requires a systematic study of its long-term
effects on the brain, behaviour and its possible association
with neurodegenerative disease vulnerability. Therefore, we
analysed the long-term effects of a single low-dose
irradiation exposure at 10 weeks of age compared to medium
and higher doses on locomotor, emotion-related and
sensorimotor behaviour in mice as well as on hippocampal
glial cell populations.We determined the influence of
radiation dose (0, 0.063, 0.125 or 0.5 Gy), time
post-irradiation (4, 12 and 18 months p.i.), sex and
genotype (wild type versus mice with Ercc2 DNA repair gene
point mutation) on behaviour.The high dose (0.5 Gy) had
early-onset adverse effects at 4 months p.i. on sensorimotor
recruitment and late-onset negative locomotor effects at 12
and 18 months p.i. Notably, the low dose (0.063 Gy) produced
no early effects but subtle late-onset (18 months)
protective effects on sensorimotor recruitment and
exploratory behaviour. Quantification and morphological
characterization of the microglial and the astrocytic cells
of the dentate gyrus 24 months p.i. indicated heightened
immune activity after high dose irradiation (0.125 and 0.5
Gy) while conversely, low dose (0.063 Gy) induced more
neuroprotective features.This is one of the first studies
demonstrating such long-term and late-onset effects on brain
and behaviour after a single radiation event in adulthood.},
keywords = {Animals / Behavior, Animal: radiation effects /
Dose-Response Relationship, Radiation / Female /
Hippocampus: radiation effects / Male / Mice / Mice, Inbred
C3H / Mice, Inbred C57BL / Motor Activity: radiation effects
/ Neuroglia: radiation effects / Whole-Body Irradiation /
Xeroderma Pigmentosum Group D Protein: genetics /
Irradiation (Other) / astrocytes (Other) / behavior (Other)
/ brain (Other) / mice (Other) / microglia (Other) /
Xeroderma Pigmentosum Group D Protein (NLM Chemicals) /
Ercc2 protein, mouse (NLM Chemicals)},
cin = {AG Wurst},
ddc = {570},
cid = {I:(DE-2719)1140001},
pnm = {352 - Disease Mechanisms (POF4-352)},
pid = {G:(DE-HGF)POF4-352},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:33264576},
doi = {10.1080/09553002.2021.1857455},
url = {https://pub.dzne.de/record/155682},
}