Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 3, 2024
Abstract
Although
numerous
neuroimaging
studies
have
shown
neural
alterations
in
individuals
with
obsessive-compulsive
disorder
(OCD),
a
psychiatric
characterised
by
intrusive
cognitions
and
repetitive
behaviours,
the
molecular
mechanisms
linking
brain
structural
changes
gene
expression
remain
poorly
understood.
By
combining
Allen
Human
Brain
Atlas
dataset
data
from
Meta-Analysis
(ENIGMA)
consortium
independent
cohorts,
this
study
performed
partial
least
squares
regression
enrichment
analysis
to
probe
correlation
between
transcription
cortical
thickness
variation
adults
OCD.
The
map
of
case–control
differences
was
spatially
correlated
weighted
combination
genes
enriched
for
neurobiologically
relevant
ontology
terms,
preferentially
expressed
across
different
cell
types
layers.
These
were
specifically
tissue,
spanning
nearly
all
developmental
stages.
Protein-protein
interaction
revealed
that
these
coded
network
proteins
encompassing
several
highly
interactive
hubs.
findings
bridge
gap
structure
transcriptome
OCD,
fostering
an
integrative
understanding
potential
biological
mechanisms.
Journal of Neuroinflammation,
Journal Year:
2024,
Volume and Issue:
21(1)
Published: April 15, 2024
Abstract
Microglia
are
sexually
dimorphic,
yet,
this
critical
aspect
is
often
overlooked
in
neuroscientific
studies.
Decades
of
research
have
revealed
the
dynamic
nature
microglial-neuronal
interactions,
but
seldom
consider
how
dynamism
varies
with
microglial
sex
differences,
leaving
a
significant
gap
our
knowledge.
This
study
focuses
on
P2RY12,
highly
expressed
signature
gene
that
mediates
we
show
adult
females
significantly
higher
expression
receptor
than
male
microglia.
We
further
demonstrate
genetic
deletion
P2RY12
induces
sex-specific
cellular
perturbations
microglia
and
neurons
more
affected.
Correspondingly,
female
mice
lacking
exhibit
unique
behavioral
anomalies
not
observed
counterparts.
These
findings
underscore
critical,
roles
offering
new
insights
into
basal
interactions
potential
implications
for
CNS
disease
mechanisms.
Graphical
Frontiers in Psychiatry,
Journal Year:
2024,
Volume and Issue:
15
Published: April 15, 2024
Neurodevelopmental
disorders
(NDDs)
are
a
class
of
pathologies
arising
from
perturbations
in
brain
circuit
formation
and
maturation
with
complex
etiological
triggers
often
classified
as
environmental
genetic.
Neuropsychiatric
conditions
such
autism
spectrum
(ASD),
intellectual
disability
(ID),
attention
deficit
hyperactivity
(ADHD)
common
NDDs
characterized
by
their
hereditary
underpinnings
inherent
heterogeneity.
Genetic
risk
factors
for
increasingly
being
identified
non-coding
regions
proteins
bound
to
them,
including
transcriptional
regulators
chromatin
remodelers.
Importantly,
de
novo
mutations
emerging
important
contributors
neuropsychiatric
disorders.
Recently,
co-factor
Zmiz1
or
its
regulatory
have
been
unrelated
patients
syndromic
ID
ASD.
However,
the
role
development
is
unknown.
Here,
using
publicly
available
databases
mutant
mouse
model,
we
reveal
that
highly
expressed
during
embryonic
mice
humans,
though
broadly
across
brain,
enriched
areas
prominently
impacted
ASD
cortex,
hippocampus,
cerebellum.
We
investigated
relationship
between
structure
pathogenicity
protein
variants,
epigenetic
marks
associated
regulation,
interactions
signaling
pathways
regulated
Zmiz1.
Our
analysis
reveals
regulates
multiple
developmental
processes,
neurogenesis,
neuron
connectivity,
synaptic
signaling.
This
work
paves
way
future
studies
on
functions
highlights
importance
combining
models
human
data.
medRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 14, 2024
Air
pollutants
are
known
neurotoxicants.
In
this
updated
systematic
review,
we
evaluate
new
evidence
since
our
2019
review
on
the
effect
of
outdoor
air
pollution
exposure
childhood
and
adolescent
brain
structure
function
as
measured
by
magnetic
resonance
imaging
(MRI).
medRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 7, 2024
Abstract
The
dorsolateral
prefrontal
cortex
is
central
to
higher
cognitive
functions
and
particularly
vulnerable
age-related
decline.
To
advance
our
understanding
of
the
molecular
mechanisms
underlying
brain
development,
maturation,
aging,
we
constructed
a
detailed
single-cell
transcriptomic
atlas
human
cortex,
encompassing
over
1.3
million
nuclei
from
284
postmortem
samples
spanning
full
lifespan
(0-97
years).
This
reveals
distinct
phases
activity:
dynamic
developmental
period,
stabilization
during
midlife,
subtle
yet
coordinated
changes
in
late
adulthood.
Modeling
non-linear
age
trends
across
shows
ten
trajectories
entire
transcriptome
all
cell
types,
with
notable
findings
neurons
microglia,
linked
neurodevelopmental
disorders
Alzheimer’s
disease
risk,
respectively.
Moreover,
excitatory
exhibit
convergence
gene
expression
patterns
lifespan,
suggesting
emergence
common
signature
aging.
Pseudotime
analysis
tracing
progression
cellular
lineages
throughout
life
key
clusters
that
reflect
as
well
their
connection
brain-related
diseases.
We
uncover
significant
circadian
rhythm
reprogramming
adulthood,
characterized
by
disruption
core
clock
rhythmicity
new
rhythmic
patterns,
within
microglia
oligodendrocytes.
comprehensive
provides
baseline
for
transitions
development
through
successful
aging
cortex.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Nov. 25, 2023
Abstract
During
development,
brain
regions
follow
encoded
growth
trajectories.
Compared
to
classical
charts,
high-definition
charts
could
quantify
regional
volumetric
and
constituent
cell
types,
improving
our
understanding
of
typical
pathological
development.
Here,
we
create
high-resolution
3D
atlases
the
early
postnatal
mouse
brain,
using
Allen
CCFv3
anatomical
labels,
at
days
(P)
4,
6,
8,
10,
12,
14,
determine
different
regions.
We
utilize
11
type-specific
transgenic
animals
validate
refine
labels.
Moreover,
reveal
region-specific
density
changes
in
γ-aminobutyric
acid-producing
(GABAergic),
cortical
layer-specific
microglia
as
key
players
shaping
find
contrasting
GABAergic
neuronal
densities
between
striatal
areas,
stabilizing
P12.
somatostatin-expressing
interneurons
undergo
regionally
distinct
reductions,
while
vasoactive
intestinal
peptide-expressing
show
no
significant
changes.
Remarkably,
transition
from
high
white
matter
tracks
gray
P10,
selective
increases
sensory
processing
areas
that
correlate
with
emergence
individual
modalities.
Lastly,
an
open-access
web-visualization
(
https://kimlab.io/brain-map/epDevAtlas
)
for
cell-type
developmental
all
time
points.