JCPP Advances,
Journal Year:
2022,
Volume and Issue:
3(1)
Published: Dec. 23, 2022
Epigenetic
processes
are
fast
emerging
as
a
promising
molecular
system
in
the
search
for
both
biomarkers
and
mechanisms
underlying
human
health
disease
risk,
including
psychopathology.In
this
review,
we
discuss
application
of
epigenetics
(specifically
DNA
methylation)
to
research
child
adolescent
mental
health,
with
focus
on
use
developmentally
sensitive
datasets,
such
prospective,
population-based
cohorts.
We
look
back
at
lessons
learned
date,
highlight
current
developments
field
areas
priority
future
research.
also
reflect
why
epigenetic
currently
lags
behind
other
what
can
do
overcome
existing
barriers.To
move
forward,
advocate
need
large-scale,
harmonized,
collaborative
efforts
that
explicitly
account
time-varying
nature
data
across
development.We
conclude
perspective
may
hold
terms
translational
applications
more
robust
signals
emerge
from
health.
Developmental Medicine & Child Neurology,
Journal Year:
2019,
Volume and Issue:
61(10), P. 1127 - 1133
Published: Feb. 11, 2019
The
developing
brain
in
utero
and
during
the
first
years
of
life
is
highly
vulnerable
to
environmental
influences.
Experiences
occurring
this
period
permanently
modify
structure
function
through
epigenetic
modifications
(alterations
DNA
chromatin
function)
consequently
affect
susceptibility
mental
disorders.
In
review,
we
describe
evidence
linking
adverse
variation
early
(from
fetal
childhood)
long‐term
changes
volume,
microstructure,
connectivity,
especially
amygdala
hippocampal
regions.
We
also
genetic
variations
that
moderate
impact
conditions
on
child
neurodevelopment,
such
as
polymorphisms
brain‐derived
neurotrophic
factor
catechol‐O‐methyltransferase
genes,
well
pathways
related
glutamate
monoaminergic
signaling.
Lastly,
have
depicted
positive
experiences
could
benefit
childhood
neurodevelopment
reverse
some
detrimental
effects
adversity
offspring.
What
paper
adds
Prenatal,
peripartum,
postnatal
adversities
influence
behavior
neurodevelopment.
Exposure
enrichment
influences
may
revert
these
effects.
Putative
mechanisms
involve
alterations
factors
neurotransmitter
systems.
New
tools/big
data
improved
understanding
how
alters
This
permits
better
translation/application
findings
from
animal
models
humans.
World Psychiatry,
Journal Year:
2021,
Volume and Issue:
20(2), P. 171 - 193
Published: May 18, 2021
The
Hierarchical
Taxonomy
of
Psychopathology
(HiTOP)
is
an
empirical
effort
to
address
limitations
traditional
mental
disorder
diagnoses.
These
include
arbitrary
boundaries
between
and
normality,
co‐occurrence
in
the
modal
case,
heterogeneity
presentation
within
disorders,
instability
diagnosis
patients.
This
paper
reviews
evidence
on
validity
utility
disinhibited
externalizing
antagonistic
spectra
HiTOP,
which
together
constitute
a
broad
superspectrum.
are
composed
elements
subsumed
variety
disorders
described
recent
DSM
nosologies,
including
most
notably
substance
use
“Cluster
B”
personality
disorders.
superspectrum
ranges
from
normative
levels
impulse
control
self‐assertion,
maladaptive
disinhibition
antagonism,
extensive
polysubstance
involvement
psychopathology.
A
rich
literature
supports
superspectrum,
spectra.
encompasses
common
genetic
influences,
environmental
risk
factors,
childhood
antecedents,
cognitive
abnormalities,
neural
alterations,
treatment
response.
structure
these
validators
mirrors
phenotypic
with
some
correlates
more
specific
or
spectra,
others
relevant
entire
underlining
hierarchical
domain.
Compared
diagnostic
categories,
conceptualization
shows
improved
utility,
reliability,
explanatory
capacity,
clinical
applicability.
one
aspect
general
approach
psychopathology
offered
by
HiTOP
can
make
classification
useful
both
research
clinic.
Neuroscience & Biobehavioral Reviews,
Journal Year:
2020,
Volume and Issue:
112, P. 392 - 409
Published: Feb. 17, 2020
DNA
methylation
(DNAm)
-
an
epigenetic
process
that
regulates
gene
expression
may
represent
a
mechanism
for
the
biological
embedding
of
early
traumatic
experiences,
including
childhood
maltreatment.
Here,
we
conducted
first
systematic
review
human
studies
linking
maltreatment
to
DNAm.
In
total,
72
were
included
in
(2008-2018).
The
majority
extant
(i)
based
on
retrospective
data
adults,
(ii)
employed
candidate
approach
(iii)
focused
global
maltreatment,
(iv)
easily
accessible
peripheral
tissues,
typically
blood;
and
(v)
cross-sectional.
Two-thirds
(n
=
48)
also
examined
maltreatment-related
outcomes,
such
as
stress
reactivity
psychiatric
symptoms.
While
findings
generally
support
association
between
altered
patterns
DNAm,
factors
lack
longitudinal
data,
low
comparability
across
well
potential
genetic
'pre-exposure'
environmental
confounding
currently
limit
conclusions
can
be
drawn.
Key
challenges
are
discussed
concrete
recommendations
future
research
provided
move
field
forward.
Translational Psychiatry,
Journal Year:
2020,
Volume and Issue:
10(1)
Published: Nov. 12, 2020
Attention-deficit
and
hyperactivity
disorder
(ADHD)
is
a
common
childhood
with
substantial
genetic
component.
However,
the
extent
to
which
epigenetic
mechanisms
play
role
in
etiology
of
unknown.
We
performed
epigenome-wide
association
studies
(EWAS)
within
Pregnancy
And
Childhood
Epigenetics
(PACE)
Consortium
identify
DNA
methylation
sites
associated
ADHD
symptoms
at
two
assessment
periods:
birth
school
age.
examined
associations
both
cord
blood
repeatedly
assessed
(age
4-15
years)
2477
children
from
5
cohorts
age
concurrent
7-11
2374
9
cohorts,
3
participating
timepoints.
CpGs
identified
nominal
significance
(p
<
0.05)
either
EWAS
were
correlated
between
timepoints
(ρ
=
0.30),
suggesting
overlap
associations;
however,
top
signals
very
different.
At
birth,
we
nine
that
predicted
later
1
×
10-7),
including
ERC2
CREB5.
Peripheral
one
these
(cg01271805
promoter
region
ERC2,
regulates
neurotransmitter
release)
was
previously
brain
methylation.
Another
(cg25520701)
lies
gene
body
CREB5,
neurite
outgrowth
an
diagnosis.
In
contrast,
age,
no
p
10-7.
conclusion,
found
evidence
this
study
ADHD.
Future
are
needed
confirm
utility
variation
as
biomarker
its
involvement
causal
pathways.
Translational Psychiatry,
Journal Year:
2021,
Volume and Issue:
11(1)
Published: Oct. 9, 2021
Abstract
Early
exposure
to
psychosocial
adversity
is
among
the
most
potent
predictors
of
depression.
Because
depression
commonly
emerges
prior
adulthood,
we
must
consider
fundamental
principles
developmental
neuroscience
when
examining
how
experiences
childhood
adversity,
including
abuse
and
neglect,
can
lead
Considering
that
both
environment
brain
are
highly
dynamic
across
period
spanning
gestation
through
adolescence,
purpose
this
review
discuss
integrate
stress-based
models
center
processes.
We
offer
a
general
framework
for
understanding
in
early
life
disrupts
or
calibrates
biobehavioral
systems
implicated
Specifically,
propose
sources
nature
environmental
input
shaping
brain,
mechanisms
neuroplasticity
involved,
change
development.
contend
effects
largely
depend
on
stage
organism.
First,
summarize
leading
neurobiological
focus
risk
mental
disorders,
In
particular,
highlight
allostatic
load,
acceleration
maturation,
dimensions
sensitive
critical
s.
Second,
expound
evidence
formulation
distinct
depending
timing
adverse
experiences,
inherent
within
certain
windows
development
constraints
these
experiences.
Finally,
other
important
facets
(e.g.,
unpredictability,
perceptions
one’s
experiences)
before
discussing
promising
research
directions
future
field.