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@ARTICLE{Lucht:902562,
author = {Lucht, Sarah and Glaubitz, Lina and Moebus, Susanne and
Schramm, Sara and Jockwitz, Christiane and Caspers, Svenja
and Hoffmann, Barbara},
title = {{L}ong-term air pollution, noise, and structural measures
of the {D}efault {M}ode {N}etwork in the brain: {R}esults
from the 1000{BRAINS} cohort},
journal = {International journal of hygiene and environmental health},
volume = {239},
issn = {1438-4639},
address = {Jena},
publisher = {Urban $\&$ Fischer},
reportid = {FZJ-2021-04361},
pages = {113867 -},
year = {2022},
abstract = {BackgroundWhile evidence suggests that long-term air
pollution (AP) and noise may adversely affect cognitive
function, little is known about whether environmental
exposures also promote structural changes in underlying
brain networks. We therefore investigated the associations
between AP, traffic noise, and structural measures of the
Default Mode Network (DMN), a functional brain network known
to undergo specific changes with age.MethodsWe analyzed data
from 579 participants (mean age at imaging: 66.5 years) of
the German 1000BRAINS study. Long-term residential exposure
to particulate matter (diameter ≤10 μm [PM10]; diameter
≤2.5 μm [PM2.5]), PM2.5 absorbance (PM2.5abs), nitrogen
dioxide (NO2), and accumulation mode particulate number
concentration (PNAM) was estimated using validated land use
regression and chemistry transport models. Long-term outdoor
traffic noise was modeled at participants' homes based on a
European Union's Environmental Noise Directive. As measures
of brain structure, cortical thickness and local
gyrification index (lGI) values were calculated for DMN
regions from T1-weighted structural brain images collected
between 2011 and 2015. Associations between environmental
exposures and brain structure measures were estimated using
linear regression models, adjusting for demographic and
lifestyle characteristics.ResultsAP exposures were below
European Union standards but above World Health Organization
guidelines (e.g., PM10 mean: 27.5 μg/m3). A third of
participants experienced outdoor 24-h noise above European
recommendations. Exposures were not consistently associated
with lGI values in the DMN. We observed weak inverse
associations between AP and cortical thickness in the right
anterior DMN (e.g., −0.010 mm [-0.022, 0.002] per 0.3 unit
increase in PM2.5abs) and lateral part of the posterior
DMN.ConclusionLong-term AP and noise were not consistently
associated with structural parameters of the DMN in the
brain. While weak associations were present between AP
exposure and cortical thinning of right hemispheric DMN
regions, it remains unclear whether AP might influence DMN
brain structure in a similar way as aging.},
cin = {INM-1},
ddc = {610},
cid = {I:(DE-Juel1)INM-1-20090406},
pnm = {5251 - Multilevel Brain Organization and Variability
(POF4-525) / HBP SGA3 - Human Brain Project Specific Grant
Agreement 3 (945539)},
pid = {G:(DE-HGF)POF4-5251 / G:(EU-Grant)945539},
typ = {PUB:(DE-HGF)16},
pubmed = {34717183},
UT = {WOS:000718247400005},
doi = {10.1016/j.ijheh.2021.113867},
url = {https://juser.fz-juelich.de/record/902562},
}