Antioxidants,
Journal Year:
2022,
Volume and Issue:
11(12), P. 2346 - 2346
Published: Nov. 27, 2022
Increased
oxidative
stress
in
osteoarthritis
(OA)
cartilage
mediates
catabolic
signal
transduction
leading
to
extracellular
matrix
degradation
and
chondrocyte
apoptosis.
This
study
aimed
explore
the
contribution
of
NADPH
oxidase
(NOX),
a
major
source
cellular
reactive
oxygen
species
(ROS),
process
chondrocytes
OA.
The
inhibition
NOX
isoforms
with
pan-NOX
inhibitor,
APX-115,
significantly
decreased
IL-1β-induced
ROS
production
primary
and,
most
potently,
suppressed
expression
marker
genes
proteases
compared
other
sources.
Catabolic
stimuli
by
IL-1β
treatment
post-traumatic
OA
conditions
upregulated
NOX2
NOX4
chondrocytes.
In
model,
pharmacologic
protected
mice
against
modulating
MMP-13
Adamts5
Mechanistically,
suppresses
Rac1,
p38,
JNK
MAPK
signaling
consistently
restores
phosphorylation
IL-1β-treated
conclusion,
prevented
development
attenuating
restoring
mitochondrial
metabolism
can
thus
be
promising
class
drug
for
Biomolecules,
Journal Year:
2024,
Volume and Issue:
14(6), P. 670 - 670
Published: June 8, 2024
Reactive
oxygen
species
(ROS)
contain
at
least
one
atom
and
or
more
unpaired
electrons
include
singlet
oxygen,
superoxide
anion
radical,
hydroxyl
hydroperoxyl
free
nitrogen
radicals.
Intracellular
ROS
can
be
formed
as
a
consequence
of
several
factors,
including
ultra-violet
(UV)
radiation,
electron
leakage
during
aerobic
respiration,
inflammatory
responses
mediated
by
macrophages,
other
external
stimuli
stress.
The
enhanced
production
is
termed
oxidative
stress
this
leads
to
cellular
damage,
such
protein
carbonylation,
lipid
peroxidation,
deoxyribonucleic
acid
(DNA)
base
modifications.
This
damage
may
manifest
in
various
pathological
states,
ageing,
cancer,
neurological
diseases,
metabolic
disorders
like
diabetes.
On
the
hand,
optimum
levels
have
been
implicated
regulation
many
important
physiological
processes.
For
example,
generated
mitochondria
(mitochondrial
mt-ROS),
byproduct
transport
chain
(ETC),
participate
plethora
functions,
which
cell
growth,
proliferation,
immune
response
regulation.
In
current
review,
we
will
focus
on
mechanisms
mt-ROS
regulate
different
pathways
host
context
infection
bacteria,
protozoan
parasites,
viruses,
fungi.
We
also
discuss
how
these
pathogens,
turn,
modulate
evade
immunity.
conclude
briefly
giving
an
overview
potential
therapeutic
approaches
involving
infectious
diseases.
Biological Research,
Journal Year:
2025,
Volume and Issue:
58(1)
Published: Jan. 27, 2025
Parkinson's
disease
(PD)
is
a
progressive
age-related
neurodegenerative
whose
annual
incidence
increasing
as
populations
continue
to
age.
Although
its
pathogenesis
has
not
been
fully
elucidated,
oxidative
stress
shown
play
an
important
role
in
promoting
the
occurrence
and
development
of
disease.
Long
noncoding
RNAs
(lncRNAs),
which
are
more
than
200
nucleotides
length,
also
involved
PD
at
transcriptional
level
via
epigenetic
regulation,
or
post-transcriptional
by
participating
physiological
processes,
including
aggregation
α-synuclein,
mitochondrial
dysfunction,
stress,
calcium
stabilization,
neuroinflammation.
LncRNAs
correlated
during
processes:
affects
expression
multiple
lncRNAs,
while
lncRNAs
regulate
many
genes
responses.
Oxidative
affect
other
processes
associated
with
neurodegeneration,
dysfunction
increased
neuroinflammation
that
lead
neuronal
death.
Therefore,
modulating
levels
specific
may
alleviate
pathological
damage
have
neuroprotective
effects.
This
review
discusses
general
mechanisms
mechanism
underlying
PD,
teases
out
through
pathogenesis,
well
identifies
possible
lncRNAs.
Reviewing
published
studies
will
help
us
further
understand
process
identify
potential
therapeutic
strategies
for
PD.
Chonnam Medical Journal,
Journal Year:
2025,
Volume and Issue:
61(1), P. 32 - 32
Published: Jan. 1, 2025
Redox
imbalances,
which
result
from
excessive
production
of
reactive
oxygen
species
(ROS)
or
malfunctioning
the
antioxidant
system,
are
source
oxidative
stress.
ROS
affects
all
structural
and
functional
components
cells,
either
directly
indirectly.
In
addition
to
causing
genetic
abnormalities,
also
oxidatively
modifies
proteins
by
protein
oxidation
peroxidation
alters
lipid
structure
via
advanced
lipoxidation,
decreasing
function
promoting
damage
cell
death.
On
other
hand,
low
levels
constitute
important
redox-signaling
molecules
in
various
pathways
that
maintain
cellular
homeostasis
regulate
key
transcription
factors.
As
a
result,
can
affect
processes,
such
as
apoptosis,
migration,
differentiation,
proliferation.
act
signaling
molecules,
controlling
normal
physiological
activities
at
level.
Furthermore,
there
is
an
increasing
body
evidence
indicating
role
clinical
conditions.
this
review,
we
will
summarize
pathological
processes
action
during
AJP Cell Physiology,
Journal Year:
2022,
Volume and Issue:
323(1), P. C69 - C83
Published: May 25, 2022
Reactive
oxygen
species
(ROS)
are
recognized
both
as
damaging
molecules
and
intracellular
signaling
entities.
In
addition
to
its
role
in
ATP
generation,
the
mitochondrial
electron
transport
chain
(ETC)
constitutes
a
relevant
source
of
ROS,
particular
during
pathological
conditions.
Mitochondrial
ROS
homeostasis
depends
on
species-
site-dependent
production,
their
bioreactivity,
diffusion,
scavenging.
However,
our
quantitative
understanding
has
thus
far
been
hampered
by
technical
limitations,
including
lack
truly
site-
and/or
ROS-specific
reporter
molecules.
this
context,
use
computational
models
is
great
value
complement
interpret
empirical
data,
well
predict
variables
that
difficult
assess
experimentally.
During
past
decades,
various
mechanistic
ETC-mediated
production
have
developed.
Although
these
often-complex
generated
novel
insights,
parameterization,
analysis,
integration
with
other
not
straightforward.
contrast,
phenomenological
(sometimes
termed
"minimal")
relatively
small
set
equations
describe
relationship(s)
between
ROS-related
parameters
generally
aim
explore
system
behavior
generate
hypotheses
for
experimental
validation.
review,
we
first
discuss
ETC-linked
introduce
detailed
models.
Next,
present
how
bioenergetic
(e.g.,
NADH/NAD+
ratio
membrane
potential)
relate
site-specific
within
ETC
relationships
can
be
used
design
minimal
homeostasis.
Finally,
illustrate
applied
pathophysiological
aspects
ROS.
Antioxidants,
Journal Year:
2023,
Volume and Issue:
12(5), P. 1065 - 1065
Published: May 8, 2023
Together
with
the
global
rise
in
obesity
and
metabolic
syndrome,
prevalence
of
individuals
who
suffer
from
nonalcoholic
fatty
liver
disease
(NAFLD)
has
risen
dramatically.
NAFLD
is
currently
most
common
chronic
includes
a
continuum
disorders
initial
fat
accumulation
to
steatohepatitis
(NASH),
considered
more
severe
forms,
which
can
evolve
in,
cirrhosis,
hepatocellular
carcinoma.
Common
features
altered
lipid
metabolism
mainly
linked
mitochondrial
dysfunction,
which,
as
vicious
cycle,
aggravates
oxidative
stress
promotes
inflammation
and,
consequence,
progressive
death
hepatocytes
form
NAFLD.
A
ketogenic
diet
(KD),
i.e.,
very
low
carbohydrates
(<30
g/die)
that
induces
“physiological
ketosis”,
been
demonstrated
alleviate
restore
function.
Based
on
this,
aim
present
review
analyze
body
evidence
regarding
potential
therapeutic
role
KD
NAFLD,
focusing
interplay
between
mitochondria
liver,
effects
ketosis
pathways,
impact
Annual Review of Nutrition,
Journal Year:
2023,
Volume and Issue:
43(1), P. 199 - 223
Published: May 19, 2023
Nonalcoholic
fatty
liver
disease
(NAFLD)
is
the
most
common
chronic
worldwide,
particularly
in
obese
and
type
2
diabetic
individuals.
Currently,
there
are
no
therapies
for
NAFLD
that
have
been
approved
by
US
Food
Drug
Administration.
Herein,
we
examine
rationale
using
ω3
polyunsaturated
acids
(PUFAs)
therapy.
This
focus
based
on
finding
severity
associated
with
a
reduction
of
hepatic
C20-22
PUFAs.
Because
PUFAs
pleiotropic
regulators
cell
function,
loss
has
potential
to
significantly
impact
function.
We
describe
prevalence
pathophysiology
as
well
current
therapies.
also
present
evidence
from
clinical
preclinical
studies
evaluated
capacity
treat
NAFLD.
Given
evidence,
dietary
PUFA
supplementation
decrease
human
reducing
hepatosteatosis
injury.
Translational Neurodegeneration,
Journal Year:
2024,
Volume and Issue:
13(1)
Published: April 17, 2024
Abstract
Mitochondria
have
multiple
functions
such
as
supplying
energy,
regulating
the
redox
status,
and
producing
proteins
encoded
by
an
independent
genome.
They
are
closely
related
to
physiology
pathology
of
many
organs
tissues,
among
which
brain
is
particularly
prominent.
The
demands
20%
resting
metabolic
rate
holds
highly
active
mitochondrial
activities.
Considerable
research
shows
that
mitochondria
function,
while
defects
induce
or
exacerbate
in
brain.
In
this
review,
we
provide
comprehensive
advances
biology
involved
functions,
well
mitochondria-dependent
cellular
events
pathology.
Furthermore,
various
perspectives
explored
better
identify
roles
neurological
diseases
neurophenotypes
diseases.
Finally,
therapies
discussed.
Mitochondrial-targeting
therapeutics
showing
great
potentials
treatment
Biomedicine & Pharmacotherapy,
Journal Year:
2024,
Volume and Issue:
176, P. 116802 - 116802
Published: May 24, 2024
Oxidative
stress
plays
a
key
role
in
chronic
kidney
disease
(CKD)
development
and
progression,
inducing
cell
damage,
inflammation,
fibrosis.
However,
effective
therapeutic
interventions
to
slow
down
CKD
advancement
are
currently
lacking.
The
multifaceted
pharmacological
effects
of
molecular
hydrogen
(H2)
have
made
it
promising
avenue.
H2
is
capable
capturing
harmful
•OH
ONOO-
while
maintaining
the
crucial
reactive
oxygen
species
(ROS)
involved
cellular
signaling.
NRF2-KEAP1
system,
which
manages
redox
balance,
could
be
used
treat
CKD.
activates
this
pathway,
fortifying
antioxidant
defenses
scavenging
ROS
counteract
oxidative
stress.
can
improve
NRF2
signaling
by
using
Wnt/β-catenin
pathway
indirectly
activate
mitochondria.
Additionally,
modulates
NF-κB
activity
regulating
status,
inhibiting
MAPK
pathways,
Trx
levels.
Treatment
with
also
attenuates
HIF
neutralizing
bolstering
HIF-1α
function.
Furthermore,
affects
FOXO
factors
enhances
enzymes.
Despite
encouraging
results
bench
studies,
clinical
trials
still
limited
require
further
investigation.
focus
review
on
hydrogen's
treating
renal
diseases,
specific
regulation,
discusses
its
potential
applications.