medRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 5, 2024
Abstract
The
major
anxiety
disorders
(ANX;
including
generalized
disorder,
panic
and
phobias
)
are
highly
prevalent,
often
onset
early,
persist
throughout
life,
cause
substantial
global
disability.
Although
distinct
in
their
clinical
presentations,
they
likely
represent
differential
expressions
of
a
dysregulated
threat-response
system.
Here
we
present
genome-wide
association
meta-analysis
comprising
122,341
European
ancestry
ANX
cases
729,881
controls.
We
identified
58
independent
significant
risk
variants
66
genes
with
robust
biological
support.
In
an
sample
1,175,012
self-report
1,956,379
controls,
51
the
associated
were
replicated.
As
predicted
by
twin
studies,
found
genetic
correlation
between
depression,
neuroticism,
other
internalizing
phenotypes.
Follow-up
analyses
demonstrated
enrichment
all
brain
regions
highlighted
GABAergic
signaling
as
one
potential
mechanism
underlying
risk.
These
results
advance
our
understanding
architecture
prioritize
for
functional
follow-up
studies.
World Psychiatry,
Journal Year:
2023,
Volume and Issue:
22(1), P. 4 - 24
Published: Jan. 14, 2023
Psychiatric
genetics
has
made
substantial
progress
in
the
last
decade,
providing
new
insights
into
genetic
etiology
of
psychiatric
disorders,
and
paving
way
for
precision
psychiatry,
which
individual
profiles
may
be
used
to
personalize
risk
assessment
inform
clinical
decision‐making.
Long
recognized
heritable,
recent
evidence
shows
that
disorders
are
influenced
by
thousands
variants
acting
together.
Most
these
commonly
occurring,
meaning
every
a
each
disorder,
from
low
high.
A
series
large‐scale
studies
have
discovered
an
increasing
number
common
rare
robustly
associated
with
major
disorders.
The
most
convincing
biological
interpretation
findings
implicates
altered
synaptic
function
autism
spectrum
disorder
schizophrenia.
However,
mechanistic
understanding
is
still
incomplete.
In
line
their
extensive
epidemiological
overlap,
appear
exist
on
continua
share
large
degree
one
another.
This
provides
further
support
notion
current
diagnoses
do
not
represent
distinct
pathogenic
entities,
ongoing
attempts
reconceptualize
nosology.
also
influences
range
behavioral
somatic
traits
diseases,
including
brain
structures,
cognitive
function,
immunological
phenotypes
cardiovascular
disease,
suggesting
shared
potential
importance.
Current
polygenic
score
tools,
predict
susceptibility
illness,
yet
provide
clinically
actionable
information.
likely
improve
coming
years,
they
eventually
become
part
practice,
stressing
need
educate
clinicians
patients
about
use
misuse.
review
discusses
key
possible
applications,
suggests
future
directions.
Nature Genetics,
Journal Year:
2023,
Volume and Issue:
55(9), P. 1471 - 1482
Published: Aug. 31, 2023
Epilepsy
is
a
highly
heritable
disorder
affecting
over
50
million
people
worldwide,
of
which
about
one-third
are
resistant
to
current
treatments.
Here
we
report
multi-ancestry
genome-wide
association
study
including
29,944
cases,
stratified
into
three
broad
categories
and
seven
subtypes
epilepsy,
52,538
controls.
We
identify
26
significant
loci,
19
specific
genetic
generalized
epilepsy
(GGE).
implicate
29
likely
causal
genes
underlying
these
loci.
SNP-based
heritability
analyses
show
that
common
variants
explain
between
39.6%
90%
risk
for
GGE
its
subtypes.
Subtype
analysis
revealed
markedly
different
architectures
focal
epilepsies.
Gene-set
signals
synaptic
processes
in
both
excitatory
inhibitory
neurons
the
brain.
Prioritized
candidate
overlap
with
monogenic
targets
antiseizure
medications.
Finally,
leverage
our
results
alternate
drugs
predicted
efficacy
if
repurposed
treatment.
Molecular Psychiatry,
Journal Year:
2023,
Volume and Issue:
28(7), P. 2716 - 2727
Published: May 2, 2023
Alzheimer's
disease
(AD)
is
considered
to
have
a
large
genetic
component.
Our
knowledge
of
this
component
has
progressed
over
the
last
10
years,
thanks
notably
advent
genome-wide
association
studies
and
establishment
consortia
that
make
it
possible
analyze
hundreds
thousands
cases
controls.
The
characterization
dozens
chromosomal
regions
associated
with
risk
developing
AD
(in
some
loci)
causal
genes
responsible
for
observed
signal
confirmed
involvement
major
pathophysiological
pathways
(such
as
amyloid
precursor
protein
metabolism)
opened
up
new
perspectives
central
role
microglia
inflammation).
Furthermore,
large-scale
sequencing
projects
are
starting
reveal
impact
rare
variants
-
even
in
like
APOE
on
risk.
This
increasingly
comprehensive
now
being
disseminated
through
translational
research;
particular,
development
risk/polygenic
scores
helping
identify
subpopulations
more
at
or
less
AD.
Although
difficult
assess
efforts
still
needed
comprehensively
characterize
AD,
several
lines
research
can
be
improved
initiated.
Ultimately,
genetics
combination
other
biomarkers)
might
help
redefine
boundaries
relationships
between
various
neurodegenerative
diseases.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: March 4, 2024
Abstract
Myelinated
axons
form
long-range
connections
that
enable
rapid
communication
between
distant
brain
regions,
but
how
genetics
governs
the
strength
and
organization
of
these
remains
unclear.
We
perform
genome-wide
association
studies
206
structural
connectivity
measures
derived
from
diffusion
magnetic
resonance
imaging
tractography
26,333
UK
Biobank
participants,
each
representing
density
myelinated
within
or
a
pair
cortical
networks,
subcortical
structures
hemispheres.
identify
30
independent
significant
variants
after
Bonferroni
correction
for
number
studied
(126
at
nominal
significance)
implicating
genes
involved
in
myelination
(
SEMA3A
),
neurite
elongation
guidance
NUAK1
,
STRN
DPYSL2
EPHA3
HGF
SHTN1
neural
cell
proliferation
differentiation
GMNC
CELF4
neuronal
migration
CCDC88C
cytoskeletal
CTTNBP2
MAPT
DAAM1
MYO16
PLEC
metal
transport
SLC39A8
).
These
have
four
broad
patterns
spatial
with
connectivity:
some
disproportionately
strong
associations
corticothalamic
connectivity,
interhemispheric
both,
while
others
are
more
spatially
diffuse.
Structural
highly
polygenic,
median
9.1
percent
common
estimated
to
non-zero
effects
on
measure,
exhibited
signatures
negative
selection.
genetic
correlations
variety
neuropsychiatric
cognitive
traits,
indicating
connectivity-altering
tend
influence
health
function.
Heritability
is
enriched
regions
increased
chromatin
accessibility
adult
oligodendrocytes
(as
well
as
microglia,
inhibitory
neurons
astrocytes)
multiple
fetal
types,
suggesting
control
partially
mediated
by
early
development.
Our
results
indicate
pervasive,
pleiotropic,
structured
white-matter
via
diverse
neurodevelopmental
pathways,
support
relevance
this
healthy
Human Genetics and Genomics Advances,
Journal Year:
2022,
Volume and Issue:
3(4), P. 100136 - 100136
Published: Aug. 18, 2022
Publicly
available
genome-wide
association
studies
(GWAS)
summary
statistics
exhibit
uneven
quality,
which
can
impact
the
validity
of
follow-up
analyses.
First,
we
present
an
overview
possible
misspecifications
that
come
with
GWAS
statistics.
Then,
in
both
simulations
and
real-data
analyses,
show
additional
information
such
as
imputation
INFO
scores,
allele
frequencies,
per-variant
sample
sizes
be
used
to
detect
issues
correct
for
One
important
motivation
us
is
improve
predictive
performance
polygenic
scores
built
from
these
Unfortunately,
owing
lack
reporting
standards
statistics,
this
not
systematically
reported.
We
also
using
well-matched
linkage
disequilibrium
(LD)
references
model
fit
translate
into
more
accurate
prediction.
Finally,
discuss
how
make
score
methods
lassosum
LDpred2
robust
their
power.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: Feb. 20, 2023
Abstract
Recent
work
in
imaging
genetics
suggests
high
levels
of
genetic
overlap
within
cortical
regions
for
thickness
(CT)
and
surface
area
(SA).
We
model
this
multivariate
system
relationships
by
applying
Genomic
Structural
Equation
Modeling
(Genomic
SEM)
parsimoniously
define
five
genomic
brain
factors
underlying
both
CT
SA
along
with
a
general
factor
capturing
across
all
regions.
validate
these
demonstrating
the
generalizability
to
semi-independent
sample
show
that
align
biologically
functionally
relevant
parcellations
cortex.
apply
Stratified
SEM
identify
specific
categories
genes
(e.g.,
neuronal
cell
types)
are
disproportionately
associated
pleiotropy
subclusters
regions,
as
indexed
factors.
Finally,
we
examine
associations
psychiatric
cognitive
correlates,
finding
broad
aspects
function
null.
These
analyses
provide
key
insights
into
architecture
two
critical
features
cerebral