medRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Nov. 12, 2023
Abstract
Substance
use
disorder
(SUD)
is
a
global
health
problem
with
significant
impact
on
individuals
and
society.
The
presentation
of
SUD
diverse,
involving
various
substances,
ages
at
onset,
comorbid
conditions,
disease
trajectories.
Current
treatments
for
struggle
to
address
this
heterogeneity,
resulting
in
high
relapse
rates.
often
co-occurs
other
psychiatric
mental-health
related
conditions
that
contribute
the
heterogeneity
predispose
adverse
Family
genetic
studies
highlight
role
environmental
factors
course
SUD,
point
shared
liability
between
SUDs
psychopathology.
In
study,
we
aimed
disentangle
using
deeply
phenotyped
cohort
polygenic
scores
(PGSs)
disorders
traits.
We
explored
associations
PGSs
SUD-related
phenotypes,
as
well
PGS-environment
interactions
information
lifetime
emotional,
physical
and/or
sexual
abuse.
Our
results
revealed
different
patterns
traits
which
may
help
explain
part
observed
SUD.
our
sample,
found
linking
ADHD
lower
educational
attainment,
PTSD
higher
rates
unemployment,
attainment
criminal
records
unemployment
well-being
outpatient
fewer
problems
family
social
relationships.
also
evidence
showing
suicide
attempt
worsened
status
history
emotional
Collectively,
these
data
better
understanding
mental
health-related
life
experiences
heterogeneity.
Molecular Psychiatry,
Journal Year:
2022,
Volume and Issue:
27(10), P. 3970 - 3979
Published: July 25, 2022
Abstract
Despite
the
large
toll
of
opioid
use
disorder
(OUD),
genome-wide
association
studies
(GWAS)
OUD
to
date
have
yielded
few
susceptibility
loci.
We
performed
a
large-scale
GWAS
in
individuals
European
(EUR)
and
African
(AFR)
ancestry,
optimizing
genetic
informativeness
by
performing
MTAG
(Multi-trait
analysis
GWAS)
with
genetically
correlated
substance
disorders
(SUDs).
Meta-analysis
included
seven
cohorts:
Million
Veteran
Program,
Psychiatric
Genomics
Consortium,
iPSYCH,
FinnGen,
Partners
Biobank,
BioVU,
Yale-Penn
3,
resulting
total
N
=
639,063
(
cases
20,686;N
effective
77,026)
across
ancestries.
were
defined
as
having
lifetime
diagnosis,
controls
anyone
not
known
meet
criteria.
estimated
SNP-heritability
(h
2
SNP
)
correlations
(r
g
).
Based
on
correlation,
we
OUD,
alcohol
(AUD),
cannabis
(CanUD).
A
leave-one-out
polygenic
risk
score
(PRS)
was
compare
OUD-MTAG
PRS
predictors
case
status
3.
The
EUR
meta-analysis
identified
three
significant
(GWS;
p
≤
5
×
10
−
8
lead
SNPs—one
at
FURIN
(rs11372849;
9.54
two
OPRM1
variants
(rs1799971,
4.92
09
;
rs79704991,
1.11
08
r
0.02).
Rs1799971
(p
4.91
another
variant
(rs9478500;
1.95
0.03)
cross-ancestry
meta-analysis.
Estimated
h
12.75%,
strong
CanUD
0.82;
1.14
47
AUD
0.77;
6.36
78
resulted
equivalent
128,748
18
independent
GWS
loci,
some
mapping
genes
or
gene
regions
that
previously
been
associated
psychiatric
addiction
phenotypes.
accounted
for
3.81%
variance
(beta
0.61;s.e.
0.066;
2.00
16
compared
2.41%
0.45;
s.e.
0.058;
2.90
13
explained
PRS.
current
study
associations
,
single
OUD-MTAG.
architecture
is
likely
influenced
both
OUD-specific
loci
shared
SUDs.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: Sept. 18, 2023
Little
is
known
about
circular
RNAs
(circRNAs)
in
specific
brain
cells
and
human
neuropsychiatric
disease.
Here,
we
systematically
identify
over
11,039
circRNAs
expressed
vulnerable
dopamine
pyramidal
neurons
laser-captured
from
190
brains
non-neuronal
using
ultra-deep,
total
RNA
sequencing.
1526
3308
are
custom-tailored
to
the
cell
identity
of
enriched
synapse
pathways.
29%
Parkinson's
12%
Alzheimer's
disease-associated
genes
produced
validated
circRNAs.
circDNAJC6,
which
transcribed
a
juvenile-onset
gene,
already
dysregulated
during
prodromal,
onset
stages
common
disease
neuropathology.
Globally,
addiction-associated
preferentially
produce
neurons,
autism-associated
cancers
cells.
This
study
shows
that
tailored
neuron
implicate
circRNA-regulated
synaptic
specialization
diseases.
Translational Psychiatry,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: March 10, 2023
Abstract
Heavy
drinking
and
diagnosis
with
alcohol
use
disorder
(AUD)
are
consistently
associated
risk
for
suicide
attempt
(SA).
Though
the
shared
genetic
architecture
among
consumption
problems
(ACP)
SA
remains
largely
uncharacterized,
impulsivity
has
been
proposed
as
a
heritable,
intermediate
phenotype
both
suicidal
behavior.
The
present
study
investigated
extent
to
which
liability
ACP
is
genetically
related
five
dimensions
of
impulsivity.
Analyses
incorporated
summary
statistics
from
genome-wide
association
studies
(
N
=
160,824),
dependence
46,568),
alcoholic
drinks
per
week
537,349),
513,497),
22,861),
extraversion
63,030).
We
used
genomic
structural
equation
modeling
(Genomic
SEM)
to,
first,
estimate
common
factor
model
consumption,
problems,
dependence,
week,
included
indicators.
Next,
we
evaluated
correlations
between
this
factors
representing
negative
urgency,
positive
lack
premeditation,
sensation-seeking,
perseverance.
Common
was
significantly
correlated
all
impulsive
personality
traits
examined
rs
0.24–0.53,
p
s
<
0.002),
largest
correlation
though
supplementary
analyses
suggested
that
these
findings
were
potentially
more
strongly
influenced
by
than
SA.
These
have
potential
implications
screening
prevention:
Impulsivity
can
be
comprehensively
assessed
in
childhood,
whereas
heavy
quite
rare
prior
adolescence.
Our
provide
preliminary
evidence
features
may
serve
early
indicators
suicidality.
Psychological Medicine,
Journal Year:
2025,
Volume and Issue:
55
Published: Jan. 1, 2025
Abstract
Background
Impulsivity
is
a
multidimensional
trait
associated
with
substance
use
disorders
(SUDs),
but
the
relationship
between
distinct
impulsivity
facets
and
stages
of
involvement
remains
unclear.
Methods
We
used
genomic
structural
equation
modeling
genome-wide
association
studies
(
N
=
79,729–903,147)
to
examine
latent
genetic
architecture
nine
traits
seven
(SU)
SUD
traits.
Results
found
that
SU
factors
were
strongly
genetically
inter-correlated
r
G
=0.77)
their
associations
differed.
Lack
premeditation,
negative
positive
urgency
equally
positively
correlated
both
=.0.30–0.50)
0.38–0.46)
factors;
sensation
seeking
was
more
factor
=0.27
versus
=0.10);
delay
discounting
=0.31
=0.21);
lack
perseverance
only
weakly
=0.10).
After
controlling
for
correlation
SU/SUD,
we
premeditation
independently
(β=0.42)
(β=0.21);
(β=0.48,
β=0.33,
respectively);
(β=0.33,
β=0.36,
respectively).
Conclusions
Our
findings
show
specific
confer
risk
involvement,
potential
implications
SUDs
prevention
treatment.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 11, 2025
1
Summary
Minor
genetic
changes
have
produced
profound
differences
in
cognitive
abilities
between
humans
and
our
closest
relatives,
particularly
language.
Despite
decades
of
research,
ranging
from
single-gene
studies
to
broader
evolutionary
analyses[1,
2,
3,
4,
5],
key
questions
about
the
genomic
foundations
human
language
persisted,
including
which
sequences
are
involved,
how
they
evolved,
whether
similar
occur
other
vocal
learning
species.
Here
we
provide
first
evidence
directly
linking
rapidly
evolved
regions
contemporary
humans.
Through
extensive
analysis
65
million
years
events
over
30,000
individuals,
demonstrate
that
Human
Ancestor
Quickly
Evolved
Regions
(HAQERs)[5]
-
accumulated
mutations
after
human-chimpanzee
split
specifically
influence
but
not
general
cognition.
These
shape
development
by
altering
binding
Forkhead
domain
transcription
factors,
FOXP2
.
Strikingly,
language-associated
HAQER
variants
show
higher
prevalence
Neanderthals
than
modern
humans,
been
stable
throughout
recent
history,
convergent
evolution
across
mammalian
learners.
An
unexpected
pattern
balancing
selection
acting
on
these
apparently
beneficial
alleles
is
explained
their
pleiotropic
effects
prenatal
brain
contributing
birth
complications,
reflecting
an
trade-off
capability
reproductive
fitness.
By
developing
Evolution
Stratified-Polygenic
Score
analysis,
capabilities
likely
emerged
before
human-Neanderthal
far
earlier
previously
thought[3,
6,
7].
Our
findings
establish
direct
link
ancient
divergence
present-day
variation
abilities,
while
revealing
constraints
continue
development.
medRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 17, 2025
ABSTRACT
Large
disparities
in
the
prevalence
of
cannabis
use
disorder
(CUD)
exist
across
ethnic
groups
U.S.
Despite
large
GWAS
meta-analyses
identifying
numerous
genome-wide
significant
loci
for
CUD
European
descents,
little
is
known
about
other
groups.
While
most
and
SNP-heritability
studies
focus
on
common
genomic
variants,
rare
low-frequency
particularly
those
altering
proteins,
are
to
be
enriched
heritability
complex
traits
may
contribute
disease
different
ways
populations,
either
through
converging
or
alternative
pathways.
In
this
study,
we
examined
three
populations
including
Americans
(EA)
two
understudied
populations:
American
Indians
(AI)
Mexican
(MA).
We
focused
low
frequency
functional
variants
genes
pathways,
performed
association
analysis
with
severity.
identified
10
AI,
ARSA
gene
MA,
pathways
one
EA
associated
Notably,
related
arylsulfatases
activation
heparan
sulfate
degradation
were
supported
by
both
additional
evidence
from
AI.
The
integrin
beta-1
cell
surface
interaction
pathway,
involved
adhesion,
was
uniquely
MA.
Several
immune-related
also
found,
an
autoimmune
condition
MA
as
well,
a
p38-gamma/delta
mediated
signaling
pathway
all
cohorts.
Although
each
population
displayed
distinct
linked
CUD,
overlapping
top
suggested
shared
genetic
factors,
further
highlighting
importance
considering
diverse
research
disorder.
Abstract
Impulsivity
refers
to
a
number
of
conceptually
related
phenotypes
reflecting
self‐regulatory
capacity
that
are
considered
promising
endophenotypes
for
mental
and
physical
health.
Measures
impulsivity
can
be
broadly
grouped
into
three
domains,
namely,
impulsive
choice,
action,
personality
traits.
In
community‐based
sample
ancestral
Europeans
(
n
=
1534),
we
conducted
genome‐wide
association
studies
(GWASs)
choice
(delay
discounting),
action
(behavioral
inhibition),
traits
(UPPS‐P),
evaluated
11
polygenic
risk
scores
(PRSs)
previously
linked
self‐regulation.
Although
there
were
no
individual
significant
hits,
the
neuroticism
PRS
was
positively
associated
with
negative
urgency
(adjusted
R
2
1.61%,
p
3.6
×
10
−7
)
educational
attainment
inversely
delay
discounting
1.68%,
2.2
).
There
also
evidence
implicating
PRSs
attention‐deficit/hyperactivity
disorder,
externalizing,
risk‐taking,
smoking
cessation,
initiation,
body
mass
index
one
or
more
s:
0.35%–1.07%;
FDR
adjusted
s
0.05–0.0006).
These
associations
between
consistent
established
genetic
correlations.
The
combined
explained
0.91%–2.46%
phenotypic
variance
measures,
corresponding
8.7%–32.5%
their
reported
single‐nucleotide
polymorphism
(SNP)‐based
heritability,
suggesting
non‐negligible
portion
SNP‐based
heritability
recovered
by
PRSs.
results
support
predictive
validity
utility
PRSs,
even
derived
from
phenotypes,
inform
genetics
phenotypes.
Frontiers in Genetics,
Journal Year:
2023,
Volume and Issue:
14
Published: June 21, 2023
Neuropsychiatric
and
substance
use
disorders
(NPSUDs)
have
a
complex
etiology
that
includes
environmental
polygenic
risk
factors
with
significant
cross-trait
genetic
correlations.
Genome-wide
association
studies
(GWAS)
of
NPSUDs
yield
numerous
signals.
However,
for
most
these
regions,
we
do
not
yet
firm
understanding
either
the
specific
variants
or
effects
variants.
Post-GWAS
methods
allow
researchers
to
GWAS
summary
statistics
molecular
mediators
(transcript,
protein,
methylation
abundances)
infer
effect
on
disorders.
One
group
post-GWAS
approaches
is
commonly
referred
as
transcriptome/proteome/methylome-wide
studies,
which
are
abbreviated
T/P/MWAS
(or
collectively
XWAS).
Since
biological
mediators,
multiple
testing
burden
reduced
number
genes
(∼20,000)
instead
millions
SNPs,
leads
increased
signal
detection.
In
this
work,
our
aim
uncover
likely
by
performing
XWAS
analyses
in
two
tissues-blood
brain.
First,
identify
putative
causal
genes,
performed
an
using
Summary-data-based
Mendelian
randomization,
uses
statistics,
reference
xQTL
data,
LD
panel.
Second,
given
large
comorbidities
among
shared
cis-xQTLs
between
blood
brain,
improved
detection
underpowered
joint
concordance
results
i)
across
tissues
ii)
NPSUDs.
All
signals
were
adjusted
heterogeneity
dependent
instruments
(HEIDI)
(non-causality)
p-values
used
test
pathway
enrichment.
The
suggest
there
widely
gene/protein
within
major
histocompatibility
region
chromosome
6
(BTN3A2
C4A)
elsewhere
genome
(FURIN,
NEK4,
RERE,
ZDHHC5).
identification
pathways
underlying
may
offer
new
targets
therapeutic
development.
Our
study
revealed
enrichment
vitamin
D
omega-3
gene
sets.
So,
including
treatment
plans
modest
but
beneficial
patients
bipolar
disorder.