medRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 11, 2024
Abstract
Epilepsy,
a
prevalent
neurodevelopmental
disorder
in
children,
is
often
accompanied
by
detrimental
psychological
consequences
and
other
comorbidities.
We
performed
exome
sequencing
on
963
patient-parent
trios,
revealing
differences
genetic
epidemiology
between
Chinese
European
epilepsy
cohorts.
The
diagnostic
yield
for
known
genes
was
40%.
Pathogenic
variants
were
most
commonly
found
SCN1A,
KCNQ2,
DEPDC5.
Additionally,
we
identified
15
novel
monogenic
candidates
at
least
two
patients
diagnosed
with
developmental
epileptic
encephalopathy,
non-acquired
focal
epilepsy,
or
generalized
including
ADCY2,
BCAR3,
CDC45,
CHRNG,
CRTC2,
CSMD1,
CSMD2,
KDM6B,
KIF1B,
PLEKHM3,
PPP4R1,
RASGRP2,
SGSM2,
SYNE1
,
ZFHX3
.
Aside
from
ADCY2
which
implicated
the
GABAergic
synapse
pathway
based
KEGG
analysis,
these
do
not
belong
to
pathways.
Local
field
potential
recordings
zebrafish
calcium
imaging
experiments
validated
associations
11
of
genes,
excluding
those
unsuitable
functional
analyses.
Furthermore,
that
CRTC2
overexpression
leads
hippocampal
neuronal
hyperactivity
using
multi-electrode
arrays
electrophysiology.
have
documented
first-line
medications
prescribed
harboring
candidate
genes.
This
study
expands
our
understanding
underpinnings
provides
opportunities
early
diagnosis
personalized
medicine
approaches.
Nature Medicine,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 31, 2025
Evidence
suggests
that
maternal
health
in
pregnancy
is
associated
with
autism
the
offspring.
However,
most
diagnoses
pregnant
women
have
not
been
examined,
and
role
of
familial
confounding
remains
unknown.
Our
cohort
included
all
children
born
Denmark
between
1998
2015
(n
=
1,131,899)
their
parents.
We
fitted
Cox
proportional
hazard
regression
models
to
estimate
likelihood
each
prenatal
ICD-10
diagnosis,
accounting
for
disease
chronicity
comorbidity,
correlations
sociodemographic
factors.
examined
evidence
using
discordant
sibling
paternal
negative
control
designs.
Among
1,131,899
individuals
our
sample,
18,374
(1.6%)
were
diagnosed
by
end
follow-up.
Across
236
we
tested
(prevalence
≥0.1%),
30
significantly
after
factors,
disorder
correction
multiple
testing.
This
obstetric,
cardiometabolic
psychiatric
disorders
(for
example,
diabetes
(hazard
ratio
(HR)
1.19,
95%
confidence
interval
(CI)
1.08-1.31)
depression
(HR
1.49,
CI
1.27-1.75)),
previously
shown
be
autism.
Family-based
analyses
provided
strong
observed
associations.
findings
indicate
pervasive
associations
offspring
underscore
these
are
largely
attributable
confounding.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Sept. 2, 2024
Depression,
a
widespread
and
highly
heritable
mental
health
condition,
profoundly
affects
millions
of
individuals
worldwide.
Neuroimaging
studies
have
consistently
revealed
volumetric
abnormalities
in
subcortical
structures
associated
with
depression.
However,
the
genetic
underpinnings
shared
between
depression
volumes
remain
inadequately
understood.
Here,
we
investigate
extent
polygenic
overlap
using
bivariate
causal
mixture
model
(MiXeR),
leveraging
summary
statistics
from
largest
genome-wide
association
for
(N
=
674,452)
14
phenotypes
33,224).
Additionally,
identify
genomic
loci
through
conditional/conjunctional
FDR
analyses.
MiXeR
shows
that
traits
share
substantial
proportion
variants
depression,
44
distinct
identified
by
subsequent
conjunctional
analysis.
These
are
predominantly
located
intronic
regions
(58.7%)
non-coding
RNA
(25.4%).
The
269
protein-coding
genes
mapped
these
exhibit
specific
developmental
trajectories,
expression
level
55
linked
to
both
volumes,
30
cognitive
abilities
behavioral
symptoms.
findings
highlight
architecture
phenotypes,
enriching
our
understanding
neurobiological
Depression
people
authors
show
brain
identifying
loci.
medRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: July 23, 2023
While
neurological
and
psychiatric
disorders
have
historically
been
considered
to
reflect
distinct
pathogenic
entities,
recent
findings
suggest
shared
pathobiological
mechanisms.
However,
the
extent
which
these
heritable
share
genetic
influences
remains
unclear.
Here,
we
performed
a
comprehensive
analysis
of
GWAS
data,
involving
nearly
1
million
cases
across
ten
diseases
disorders,
compare
their
common
risk
biological
underpinnings.
Using
complementary
statistical
tools,
demonstrate
widespread
overlap
even
in
absence
correlations.
This
indicates
that
large
set
variants
impact
multiple
but
with
divergent
effect
sizes.
Furthermore,
interrogation
revealed
range
processes
associated
diseases,
while
consistently
implicated
neuronal
biology.
Altogether,
study
key
etiological
aspects,
has
important
implications
for
disease
classification,
precision
medicine,
clinical
practice.
Schizophrenia,
Journal Year:
2024,
Volume and Issue:
10(1)
Published: March 5, 2024
Abstract
Schizophrenia
(SCZ),
a
highly
heritable
mental
disorder,
is
characterized
by
cognitive
impairment,
yet
the
extent
of
shared
genetic
basis
between
schizophrenia
and
performance
(CP)
remains
poorly
understood.
Therefore,
we
aimed
to
explore
polygenic
overlap
SCZ
CP.
Specifically,
bivariate
causal
mixture
model
(MiXeR)
was
employed
estimate
(
n
=
130,644)
CP
257,841),
conjunctional
false
discovery
rate
(conjFDR)
approach
used
identify
loci.
Subsequently,
functional
annotation
enrichment
analysis
were
carried
out
on
identified
genomic
The
MiXeR
analyses
revealed
that
9.6
K
variants
are
associated
with
10.9
for
CP,
which
9.5
these
two
traits
(Dice
coefficient
92.8%).
By
employing
conjFDR,
236
loci
jointly
139
novel
traits.
Within
loci,
60
exhibited
consistent
effect
directions,
while
176
had
opposite
directions.
Functional
indicated
mainly
located
in
intronic
intergenic
regions,
found
be
involved
relevant
biological
processes
such
as
nervous
system
development,
multicellular
organism
generation
neurons.
Together,
our
findings
provide
insights
into
architecture
suggesting
common
pathways
mechanisms
contributing
both
Clinical Genetics,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 4, 2025
ABSTRACT
Epilepsy,
affecting
approximately
50
million
individuals
worldwide,
exhibits
a
genetic
heritability
of
32%.
While
several
genes/loci
associated
with
epilepsy
have
been
identified
through
candidate
and
genome‐wide
association
studies
(GWAS),
exploration
population‐specific
markers
remains
underexplored.
We
conducted
the
first
GWAS
in
north
Indian
population
(~1500
samples)
to
identify
variants/loci
risk,
validated
using
targeted
next‐generation
sequencing
(NGS).
Our
revealed
30
variants
across
seven
loci
including
six
novel
loci.
Subtype
analysis
based
on
etiology
seizure
types,
57
11
loci,
10
which
are
novel.
Gene‐set
unveiled
enrichment
genes
glutathione
synthesis
recycling
regulation
dopaminergic
neuron
differentiation
pivotal
pathophysiology.
Furthermore,
PRS
significant
contribution
an
R
2
0.00573.
Additionally,
NGS
showed
~95%
concordance
GSA
genotypes.
study
highlights
rs17031055/4q31.3
(DCHS2),
rs73182224/3q27.2
(DGKG),
rs9322462/6q25.2
(CNKSR3),
rs75328617/8q24.23
(RNU1‐35P),
rs2938010/10q26.13
(CTBP2)
rs11652575/17p11.2
(SLC5A10
)
risk.
These
findings
offer
valuable
insights
into
landscape
population,
providing
foundation
for
future
exploratory
studies.
Molecular Psychiatry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 19, 2025
Depression,
a
complex
and
heritable
psychiatric
disorder,
is
associated
with
alterations
in
white
matter
microstructure,
yet
their
shared
genetic
basis
remains
largely
unclear.
Utilizing
the
largest
available
genome-wide
association
study
(GWAS)
datasets
for
depression
(N
=
674,452)
microstructure
33,224),
assessed
through
diffusion
tensor
imaging
metrics
such
as
fractional
anisotropy
(FA)
mean
diffusivity
(MD),
we
employed
linkage
disequilibrium
score
regression
method
to
estimate
global
correlations,
local
analysis
of
[co]variant
approach
pinpoint
genomic
regions
conjunctional
false
discovery
rate
identify
variants.
Our
findings
revealed
that
showed
significant
correlations
FA
37
MD
59
regions,
while
were
weak.
Variant-level
identified
78
distinct
loci
jointly
(25
novel
loci)
(35
loci),
41
(17
loci).
Further
analyses
these
exhibited
both
concordant
discordant
effect
directions
between
traits,
well
overlapping
hemispheric
patterns
architecture.
Enrichment
implicated
biological
processes
related
metabolism
regulation.
This
provides
evidence
mixed-direction
architecture
microstructure.
The
identification
specific
pathways
offers
potential
insights
developing
targeted
interventions
improve
integrity
alleviate
depressive
symptoms.