Role of Antioxidants in Modulating the Microbiota–Gut–Brain Axis and Their Impact on Neurodegenerative Diseases
International Journal of Molecular Sciences,
Journal Year:
2025,
Volume and Issue:
26(8), P. 3658 - 3658
Published: April 12, 2025
This
narrative
review
presents
the
role
of
antioxidants
in
regulating
gut
microbiota
and
impact
on
gut–brain
axis,
with
a
particular
focus
neurodegenerative
diseases,
such
as
Alzheimer’s
(AD)
Parkinson’s
disease
(PD).
These
diseases
are
characterised
by
cognitive
decline,
motor
dysfunction,
neuroinflammation,
all
which
significantly
exacerbated
oxidative
stress.
elucidates
contribution
damage
to
progression
explores
potential
mitigate
these
pathological
processes
through
modulation
associated
pathways.
Based
recent
studies
retrieved
from
reputable
databases,
including
PubMed,
Web
Science,
Scopus,
this
article
outlines
mechanisms
influence
health
exert
neuroprotective
effects.
Specifically,
it
discusses
how
antioxidants,
polyphenols,
vitamins,
flavonoids,
contribute
reduction
reactive
oxygen
species
(ROS)
production
thereby
promoting
neuronal
survival
minimising
brain.
In
addition,
modulating
key
molecular
pathways
involved
stress
NF-κB,
Nrf2,
MAPK,
PI3K/AKT
pathways,
regulate
ROS
generation,
inflammatory
cytokine
expression,
antioxidant
responses
essential
for
maintaining
cellular
homeostasis
both
central
nervous
system.
complex
relationship
between
gut-derived
metabolites,
stress,
highlighting
dysbiosis—an
imbalance
microbiota—can
exacerbate
accelerating
AD
PD.
The
also
examines
short-chain
fatty
acids
(SCFAs)
produced
beneficial
bacteria
attenuate
neuroinflammation
damage.
Furthermore,
therapeutic
microbiota-targeted
interventions,
delivery
probiotics
prebiotics,
innovative
strategies
restore
microbial
support
brain
health.
By
synthesising
current
knowledge
interplay
underlying
neurodegeneration,
highlights
promise
antioxidant-based
interventions
mitigating
progression.
It
need
further
research
into
antioxidant-rich
dietary
microbiota-focused
therapies
promising
avenues
prevention
treatment
diseases.
Language: Английский
The Protective Effects of Lactobacillus reuteri Combined With Clostridium butyricum Miyairi 588 on Intestinal Barrier Function, Water Transport, and Oxidative Stress in a Rat Model of 5FU‐Induced Diarrhea
Sheau‐Chung Tang,
No information about this author
Wen‐Chen Chuang,
No information about this author
Jiuan‐Miaw Liao
No information about this author
et al.
Food Science & Nutrition,
Journal Year:
2025,
Volume and Issue:
13(6)
Published: May 23, 2025
ABSTRACT
5‐Fluorouracil
(5FU)
is
a
commonly
employed
and
highly
effective
chemotherapeutic
agent
in
clinical
oncology.
Nevertheless,
one
of
the
most
frequent
debilitating
adverse
effects
associated
with
5FU
treatment
diarrhea.
These
gastrointestinal
complications
can
affect
patients'
quality
life
adherence
to
regimens.
Consequently,
addressing
mitigating
diarrhea
during
therapy
presents
critical
urgent
challenge
oncological
care.
This
study
investigated
whether
probiotic
Lactobacillus
reuteri
combined
Clostridium
butyricum
Miyairi
588
(LCs)
alleviate
5FU‐induced
potential
mechanism.
Wistar
rats
received
(50
mg/kg,
intraperitoneal
injection)
for
5
consecutive
days
establish
colitis
model.
LCs
were
administered
15
before
injection
continued
until
day
sacrifice.
Tissue
morphology,
inflammatory
oxidative
stress
markers,
as
well
expression
mRNA
related
intestinal
barrier
integrity,
apoptosis,
aquaporins
(AQPs)
evaluated
colon
tissue
samples.
analyses
used
hematoxylin
eosin
staining,
enzyme‐linked
immunosorbent
assay
(ELISA),
quantitative
real‐time
reverse
transcription‐polymerase
chain
reaction
(qRT‐PCR)
techniques.
Additionally,
concentrations
short‐chain
fatty
acids
(SCFAs)
measured
using
gas
chromatography‐flame
ionization
detection
(GC‐FID)
analysis.
In
this
model,
mitigated
weight
loss,
diarrhea,
bloody
stool,
shortened
length,
colonic
histopathology.
Treatment
resulted
reduced
levels
MDA,
TNF‐α,
IL‐1β,
MPO
activity,
decreased
IFN‐γ,
AKT,
NF‐κB,
iNOS.
significantly
downregulated
VCAM‐1,
CXCL4,
MAPK,
caspase‐3,
while
upregulating
tight
junction
protein
occludin
expression.
also
notably
diminished
AQP7,
VIP,
PKA.
demonstrates
that
have
therapeutic
on
colitis,
primarily
through
their
antioxidant
properties,
anti‐apoptotic
effects,
mucosal
integrity
maintenance,
neutrophil
infiltration
reduction,
cytokines
aquaporin
modulation.
Language: Английский