Environmental Research,
Journal Year:
2024,
Volume and Issue:
267, P. 120638 - 120638
Published: Dec. 15, 2024
Maternal
exposure
to
per-
and
polyfluoroalkyl
substances
(PFAS)
has
been
linked
child
neurodevelopmental
difficulties.
Neuroimaging
research
these
difficulties
white
matter
microstructure
alterations,
but
the
effects
of
PFAS
on
children's
remains
unclear.
We
investigated
associations
between
maternal
blood
concentrations
six
common
perfluoroalkyl
sulfonates
alterations
in
young
children
using
longitudinal
neuroimaging
data.
This
study
included
84
maternal-child
pairs
from
a
Canadian
pregnancy
cohort.
second
trimester
perfluorohexanesulfonate
(PFHxS)
five
perfluorooctane
sulfonate
(PFOS)
isomers
were
quantified.
Children
underwent
magnetic
resonance
imaging
scans
ages
two
(279
total).
Adjusted
linear
mixed
models
each
fractional
anisotropy
(FA)
mean
diffusivity
(MD).
Higher
associated
with
higher
MD
lower
FA
body
splenium
corpus
callosum
children.
Multiple
sex-specific
found.
In
males,
PFHxS
was
negatively
superior
fasciculus,
while
PFOS
positively
inferior
fasciculus
(ILF).
females,
pyramidal
fibers
fornix,
ILF.
may
alter
development
children,
potentially
contributing
Larger
studies
are
needed
replicate
findings
examine
neurotoxicity
chemicals.
Developmental Cognitive Neuroscience,
Journal Year:
2024,
Volume and Issue:
65, P. 101338 - 101338
Published: Jan. 4, 2024
Many
recent
studies
have
demonstrated
that
environmental
contexts,
both
social
and
physical,
an
important
impact
on
child
adolescent
neural
behavioral
development.
The
adoption
of
geospatial
methods,
such
as
in
the
Adolescent
Brain
Cognitive
Development
(ABCD)
Study,
has
facilitated
exploration
many
contexts
surrounding
participants'
residential
locations
without
creating
additional
burdens
for
research
participants
(i.e.,
youth
families)
neuroscience
studies.
However,
number
linked
databases
increases,
developing
a
framework
considers
various
domains
related
to
environments
external
their
home
becomes
crucial.
Such
needs
identify
structural
contextual
factors
may
yield
inequalities
children's
built
natural
environments;
these
differences
may,
turn,
result
downstream
negative
effects
children
from
historically
minoritized
groups.
In
this
paper,
we
develop
–
which
describe
"adolescent
urbanome"
use
it
categorize
newly
geocoded
information
incorporated
into
ABCD
Study
by
Linked
External
Data
(LED)
Environment
&
Policy
Working
Group.
We
also
highlight
relationships
between
measures
possible
applications
Neural
Urbanome.
Finally,
provide
recommendations
considerations
regarding
responsible
communication
data,
highlighting
potential
harm
groups
through
misuse.
Human Brain Mapping,
Journal Year:
2024,
Volume and Issue:
45(5)
Published: April 1, 2024
Abstract
There
remains
little
consensus
about
the
relationship
between
sex
and
brain
structure,
particularly
in
early
adolescence.
Moreover,
few
pediatric
neuroimaging
studies
have
analyzed
both
gender
as
variables
of
interest—many
which
included
small
sample
sizes
relied
on
binary
definitions
gender.
The
current
study
examined
diversity
with
a
continuous
felt‐gender
score
categorized
based
X
Y
allele
frequency
large
children
ages
9–11
years
old
(
N
=
7195).
Then,
statistical
model‐building
approach
was
employed
to
determine
whether
independently
or
jointly
relate
morphology,
including
subcortical
volume,
cortical
thickness,
gyrification,
white
matter
microstructure.
Additional
sensitivity
analyses
found
that
male
versus
female
differences
gyrification
were
largely
accounted
for
by
total
rather
than
per
se.
model
sex,
but
not
diversity,
best‐fitting
60.1%
gray
regions
61.9%
after
adjusting
volume.
proportion
variance
negligible
all
cases.
While
models
explained
greater
amount
regions,
alone
significant
predictor
its
own
any
examined.
Overall,
these
findings
demonstrate
at
old,
accounts
while
is
directly
associated
neurostructural
diversity.
Communications Medicine,
Journal Year:
2024,
Volume and Issue:
4(1)
Published: Aug. 1, 2024
Air
pollution
is
ubiquitous,
yet
questions
remain
regarding
its
impact
on
the
developing
brain.
Large
changes
occur
in
white
matter
microstructure
across
adolescence,
with
notable
differences
by
sex.
We
investigate
sex-stratified
effects
of
annual
exposure
to
fine
particulate
(PM2.5),
nitrogen
dioxide
(NO2),
and
ozone
(O3)
at
ages
9–10
years
longitudinal
patterns
over
a
2-year
period.
Diffusion-weighted
imaging
was
collected
3T
MRI
scanners
for
8182
participants
(1–2
scans
per
subject;
45%
two
scans)
from
Adolescent
Brain
Cognitive
Development
(ABCD)
Study®.
Restriction
spectrum
performed
quantify
intracellular
isotropic
(RNI)
directional
(RND)
diffusion.
Ensemble-based
air
concentrations
were
assigned
each
child's
primary
residential
address.
Multi-pollutant,
linear
mixed-effect
models
assessed
associations
between
pollutants
RNI/RND
age
time,
adjusting
sociodemographic
factors.
Here
we
show
higher
PM2.5
associated
RND
9
both
sexes,
no
significant
change
time.
Higher
NO2
RNI
as
well
attenuating
time
females.
O3
9,
sexes.
Criteria
influence
maturation
9–13
old,
some
sex-specific
magnitude
anatomical
locations
affected
tracts.
This
occurs
that
are
below
current
U.S.
standards,
suggesting
low-level
during
adolescence
may
have
long-term
consequences.
known
affect
health,
but
it
unclear
whether
affects
growing
human
investigated
there
development
connections,
which
allow
faster
communication
different
brain
regions,
children
aged
9-13
living
areas
relatively
low
or
high
USA.
In
large
group
teens,
find
polluted
linked
9-10
old
next
years.
cases,
males
females
showed
part
showing
amount
change.
Our
study
suggests
levels
deemed
acceptable
under
regulations
USA
could
how
grows.
Further
studies
needed
better
understand
these
changes.
Cotter
et
al.
ambient
pollutant
microstructural
transition
childhood
adolescence.
There
associations,
primarily
affecting
sexes
Environment International,
Journal Year:
2025,
Volume and Issue:
unknown, P. 109245 - 109245
Published: Jan. 1, 2025
A
few
studies
linked
air
pollution
to
differences
in
functional
connectivity
of
resting-state
brain
networks
children,
but
how
exposure
affects
the
development
remains
poorly
understood.
Therefore,
we
studied
association
from
birth
3
years
and
one
year
before
first
imaging
assessment
with
across
adolescence.
We
utilized
data
3,626
children
Generation
R
Study
(The
Netherlands).
estimated
residential
PM10,
PM2.5,
PM2.5
absorbance,
NOX,
NO2
land-use
regression
models.
Between-
within-network
was
calculated
for
13
cortical
networks,
amygdala,
hippocampus,
caudate
nucleus
at
two
assessments
(8.6-12.0
12.6-17.1
years),
resulting
4,628
scans
(2,511
1
2,117
2)
individuals.
investigated
between
linear
mixed
models
adjusted
life-style
socioeconomic
variables,
corrected
multiple
testing.
Higher
associated
persistently
lower
over
time
amygdala
ventral
attention,
somatomotor
hand,
auditory
throughout
adolescence
(e.g.
-0.027
[95
%
CI
-0.040;
-0.013]
-
attention
network
per
5
μg/m3higher
PM2.5).
PM10
salience
medial-parietal
Air
not
a
faster
or
slower
change
age.
early
life
persistent
alterations
involved
somatomotor,
function.
Concurrent
related
higher
cognitive
functions
(i.e.
networks).
Brain Behavior & Immunity - Health,
Journal Year:
2024,
Volume and Issue:
38, P. 100799 - 100799
Published: May 31, 2024
Ambient
air
pollution
is
a
neurotoxicant
with
hypothesized
immune-related
mechanisms.
Adolescent
brain
structural
and
functional
connectivity
may
be
especially
vulnerable
to
ambient
due
the
refinement
of
large-scale
networks
during
this
period,
which
vary
by
sex
have
important
implications
for
cognitive,
behavioral,
emotional
functioning.
In
current
study
we
explored
associations
between
pollutants,
immune
markers,
in
early
adolescence
leveraging
cross-sectional
sex-stratified
data
from
Brain
Cognitive
Development℠
Study®.
Pollutant
concentrations
fine
particulate
matter,
nitrogen
dioxide,
ozone
were
assigned
each
child's
primary
residential
address
prenatal
period
childhood
(9-10
years-old)
using
an
ensemble-based
modeling
approach.
Data
collected
at
11-13
years-old
included
resting-state
default
mode,
frontoparietal,
saliency
limbic
regions
interest,
intracellular
directional
isotropic
diffusion
available
white
matter
tracts,
markers
cellular
activation.
Using
partial
least
squares
correlation,
multivariate
data-driven
method
that
identifies
variables
within
latent
dimensions,
investigated
1)
pollutants
connectivity,
2)
3)
separately.
Air
exposure
was
related
ages
years,
but
direction
varied
sex.
There
no
years.
Childhood
dioxide
negatively
correlated
blood
cell
count
males.
Immune
biomarkers
positively
females
both
Lastly,
there
reliable
negative
correlation
lymphocyte-to-monocyte
ratio
mode
network
females,
as
well
compromised
marker
profile
associated
lower
salience
left
hippocampus
post-hoc
exploratory
analyses,
found
PLSC
identified
tracts
rsFC
processing
speed
cognitive
control
performance
NIH
Toolbox.
We
novel
links
activation
males,
sexes.
Future
research
should
explore
potentially
mediating
role
activity
how
affect
neurological
outcomes
potential
consequences
patterns
service
improved
health
all.