Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Oct. 9, 2023
Abstract
Previous
evidence
suggests
elevated
levels
of
oxidative
DNA
damage,
particularly
8-hydroxy-2'-deoxyguanosine
(8-OH-dG),
and
abnormalities
in
the
repair
8-OH-dG
by
base
excision
(BER)
BD.
However,
genetic
disposition
these
remains
unknown.
In
this
study,
we
aimed
to
investigate
damage
BER
mechanisms
individuals
with
BD
their
siblings,
as
compared
healthy
controls
(HCs).
46
BD,
41
siblings
51
HCs
were
included
study.
Liquid
chromatography-tandem
mass
spectrometry
was
employed
evaluate
urine,
which
then
normalized
based
on
urine
creatinine
levels.
The
real-time-polymerase
chain
reaction
used
measure
expression
8-oxoguanine
glycosylase
1
(OGG1),
apurinic/apyrimidinic
endonuclease
(APE1),
poly
ADP-ribose
polymerase
(PARP1)
,
beta
(POLβ)
.
found
be
both
when
HCs.
OGG1
APE1
expressions
downregulated,
while
POLβ
upregulated
patient
sibling
groups
Age,
smoking
status,
number
depressive
episodes
had
an
impact
group
body
index,
past
psychiatric
history
siblings.
Both
unaffected
presented
similar
regarding
BER,
suggesting
a
link
between
/
familial
susceptibility
Our
findings
suggest
that
targeting
pathway
could
offer
promising
therapeutic
strategies
for
reducing
risk
age-related
diseases
comorbidities
predisposition
JAMA Psychiatry,
Journal Year:
2024,
Volume and Issue:
81(5), P. 516 - 516
Published: March 6, 2024
All-cause
mortality
and
the
risk
for
age-related
medical
disease
is
increased
in
individuals
with
psychiatric
illness,
but
underlying
biological
mechanisms
are
not
known.
Oxidative
stress
on
nucleic
acids
(DNA
RNA;
NA-OXS)
a
molecular
driver
of
aging
potential
pathophysiological
mechanism
range
disorders.
Translational Psychiatry,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Feb. 8, 2024
Excessive
oxidative
stress-generated
nucleoside
damage
seems
to
play
a
key
role
in
bipolar
disorder
(BD)
and
may
present
trait
phenomenon
associated
with
familial
risk
is
one
of
the
putative
mechanisms
explaining
accelerated
atherosclerosis
premature
cardiovascular
diseases
(CVD)
younger
patients
BD.
However,
has
not
been
studied
young
BD
their
unaffected
relatives
(UR).
Therefore,
we
compared
DNA
RNA
newly
diagnosed
BD,
UR,
healthy
control
individuals
(HC).
Systemic
levels
were
by
analyzing
urinary
8-oxo-7,8-dihydro-2'-deoxyguanosine
8-oxo-7,8-dihydroguanosine
participants
aged
15-25
years,
including
133
57
83
HC.
Compared
HC,
was
21.8%
higher
(B
=
1.218,
95%
CI
1.111-1.335,
p
<0.001)
22.5%
UR
1.225,
1.090-1.377,
<0.002),
while
14.8%
1.148,
1.082-1.219,
14.0%
1.140,
1.055-1.230,
<
0.001)
models
adjusted
for
sex
age
after
correction
multiple
comparison.
Levels
did
differ
between
UR.
Our
findings
support
being
highlight
importance
early
diagnosis
treatment
prevent
illness
progression
development
CVD.
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(13), P. 7221 - 7221
Published: June 29, 2024
Decades
of
research
have
identified
genetic
and
environmental
factors
involved
in
age-related
neurodegenerative
diseases
and,
to
a
lesser
extent,
neuropsychiatric
disorders.
Genomic
instability,
i.e.,
the
loss
genome
integrity,
is
common
feature
among
both
(mayo-trophic
lateral
sclerosis,
Parkinson's
disease,
Alzheimer's
disease)
psychiatric
(schizophrenia,
autism,
bipolar
depression)
instability
associated
with
accumulation
persistent
DNA
damage
activation
response
(DDR)
pathways,
as
well
pathologic
neuronal
cell
or
senescence.
Typically,
DDR
signaling
ensures
that
genomic
proteomic
homeostasis
are
maintained
dividing
cells,
including
neural
progenitors,
post-mitotic
neurons.
However,
dysregulation
these
protective
responses,
part
due
aging
insults,
contributes
progressive
development
and/or
In
this
Special
Issue,
we
introduce
highlight
overlap
between
disorders,
emerging
clinical,
genomic,
molecular
evidence
for
contributions
aberrant
repair.
Our
goal
illuminate
importance
subject
uncover
possible
treatment
prevention
strategies
relevant
devastating
brain
diseases.
Brain Behavior and Immunity,
Journal Year:
2023,
Volume and Issue:
117, P. 1 - 11
Published: Dec. 21, 2023
While
genetic
and
cohort
studies
suggest
immune
reduction/oxidation
(redox)
alterations
occur
in
psychosis,
less
is
known
about
potential
children
adolescents.
medRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 31, 2025
Abstract
Alterations
in
the
central
and
peripheral
energy
metabolism
are
increasingly
recognized
as
key
pathophysiological
processes
various
psychiatric
disorders.
This
case-control
study
investigates
mitochondrial
production
oxidative
DNA
damage
Borderline
Personality
Disorder
(BPD).
We
compared
respiration,
density,
blood
mononuclear
cells
between
women
with
acute
BPD,
remitted
healthy
controls
(
n
=
32,
15,
29),
matched
for
age
BMI.
Acute
BPD
was
characterized
by
reduced
less
efficient
ATP
to
both
(e.g.,
coupling
efficiency:
r
x
−0.36
−0.35,
p
adj
’s
<
.037).
Decreased
activity
closely
associated
greater
S
−0.57,
.001),
although
did
not
differ
diagnostic
groups.
Our
findings
suggest
promising
sensitive
biomarkers
disorder
severity
clinical
remission
BPD.
BMC Psychiatry,
Journal Year:
2025,
Volume and Issue:
25(1)
Published: March 19, 2025
Bipolar
disorder
(BD)
is
a
common
mental
characterized
by
significant
cognitive
dysfunction,
the
mechanisms
of
which
remain
unclear.
Oxidative
stress
and
glial
cell
line-derived
neurotrophic
factor
(GDNF)
influence
pathophysiology
BD.
Their
specific
roles,
particularly
concerning
function
during
manic
episodes,
are
The
serum
levels
superoxide
dismutase
(SOD)
malondialdehyde
(MDA),
GDNF
were
biochemically
assayed
in
patients
with
bipolar
mania
before
after
treatment
to
explore
their
associations
function.
A
total
75
acute
episodes
BD
70
healthy
controls
initially
enrolled.
During
4-week
intervention
period
atypical
antipsychotics
mood
stabilizers,
5
discontinued
follow-up,
resulting
completers
included
final
analysis.
severity
symptoms
assessed
using
Young
Mania
Rating
Scale
(YMRS).
Cognitive
was
Digit
Cancellation,
Stroop
Color
Word,
Trail
Making
Tests.
Serum
SOD,
MDA,
measured
biochemical
assays.
demonstrated
higher
SOD
MDA
lower
compared
controls,
following
improvements
treatment.
Pre-treatment
YMRS
scores
assessments
positively
correlated
levels,
negatively
levels.
Treatment
significantly
improved
function,
although
remained
than
controls.
functions
phase
substantially
advance
understanding
role
oxidative
Possible
biomarkers
for
diagnosis
prognosis
assessment
revealed.
Further
investigations
into
complex
pathophysiological
needed.
Not
applicable