Microbial Biotechnology,
Journal Year:
2025,
Volume and Issue:
18(1)
Published: Jan. 1, 2025
ABSTRACT
Advancing
microbiome–gut–brain
axis
science
requires
systematic,
rational
and
translational
approaches
to
bridge
the
critical
knowledge
gaps
currently
preventing
full
exploitation
of
gut
microbiome
as
a
tractable
therapeutic
target
for
gastrointestinal,
mental
brain
health.
Current
research
is
still
marked
by
many
open
questions
that
undermine
widespread
application
humans.
For
example,
lack
mechanistic
understanding
probiotic
effects
means
it
remains
unclear
why
even
apparently
closely
related
strains
exhibit
different
in
vivo.
live
microbial
psychobiotics,
consensus
on
their
adjunct
treatments
conventional
neuromodulators,
use
unmedicated
populations
or
at‐risk
cohorts
with
sub‐clinical
symptomatology
warranted.
This
missing
information
both
sides
equation
when
treating
central
nervous
system
(CNS)
conditions
makes
psychobiotic
challenging,
especially
compared
other
pharmaceutical
functional
food
approaches.
Expediting
transition
from
positive
preclinical
data
proven
benefits
humans
includes
interpreting
promises
pitfalls
animal
behavioural
assays,
well
navigating
mechanism‐informed
decision
making
select
right
microbe(s)
job.
In
this
review,
we
consider
how
these
decisions
can
be
supported
light
accrued
range
clinical
studies
across
healthy,
pathological
study
populations,
where
specific
have
been
evaluated
context
gastrointestinal
physiology,
function
behaviour.
Examples
successful,
partial
unsuccessful
translation
bench
bedside
are
considered.
We
also
discuss
developments
silico
analyses
enhanced
our
moved
towards
pinpointing
host–microbe
interactions
most
important
optimal
gut–brain
function.
Combining
assays
vitro
ex
vivo
domains
incorporating
model
organisms
prime
discovery
pipelines
promising
rationally
selected
candidates.
International Journal of Molecular Sciences,
Journal Year:
2022,
Volume and Issue:
23(22), P. 13665 - 13665
Published: Nov. 8, 2022
There
is
a
growing
body
of
evidence
highlighting
there
are
significant
changes
in
the
gut
microbiota
composition
and
relative
abundance
various
neurological
disorders.
We
performed
systematic
review
different
altered
wide
range
disorders
(Alzheimer’s
disease
(AD),
Parkinson’s
(PD),
multiple
sclerosis
(MS),
amyotrophic
lateral
sclerosis,
stroke).
Fifty-two
studies
were
included
representing
5496
patients.
At
genus
level,
most
frequently
involved
Akkermansia,
Faecalibacterium,
Prevotella.
The
overlap
between
pathologies
was
strongest
for
MS
PD,
sharing
eight
genera
(Akkermansia,
Butyricicoccus,
Bifidobacterium,
Coprococcus,
Dorea,
Parabacteroides,
Prevotella)
PD
stroke,
six
(Enterococcus,
Lactobacillus,
Prevotella,
Roseburia).
identification
signatures
overlapping
AD,
raise
question
whether
these
reflect
common
etiology
or
rather
consequence
diseases.
interpretation
hampered
by
low
number
power
ALS,
stroke
with
ample
opportunity
false
positive
negative
findings.
Nutrients,
Journal Year:
2023,
Volume and Issue:
15(7), P. 1737 - 1737
Published: April 1, 2023
Recent
studies
have
demonstrated
that
disturbances
in
the
gut
microbiota
and
-derived
metabolites
contribute
to
pathogenesis
of
Parkinson's
disease
(PD),
suggesting
probiotic
treatments
restore
them
may
delay
progression.
This
study
aimed
examine
attenuating
efficacy
L.
plantarum
CCFM405
potential
mechanisms
mice
with
rotenone-induced
PD.
Our
results
indicate
ameliorated
motor
deficits
constipation,
decreased
dopaminergic
neuronal
death,
reduced
intestinal
inflammation
neuroinflammation,
raised
dopamine
levels,
5-HT,
associated
striatal
region
brain
Sequencing
16S
rRNA
from
fecal
revealed
normalized
bacterial
composition
PD,
as
evidenced
by
increased
relative
abundance
following
genus,
Bifidobacterium,
Turicibacter,
Faecalibaculum,
Alistipes,
Bilophila,
Akkermansia,
Escherichia-Shigella.
The
PICRUSt-predicted
function
enhanced
biosynthesis
amino
acid
pathways,
particularly
valine,
leucine,
isoleucine
(branched-chain
acids,
BCAAs).
A
non-metabolomic
analysis
serum
feces
showed
markedly
levels
BCAAs.
Pathway
enrichment
based
on
KEGG
database
further
suggested
supplementation
can
promote
BCAAs
biosynthesis.
Collectively,
help
prevent
PD
modulating
microbiota-metabolite
axis.
play
a
dominant
role
CCFM405-associated
neuroprotection
mice.
could
be
utilized
food
supplement
management
Food & Function,
Journal Year:
2023,
Volume and Issue:
14(15), P. 6828 - 6839
Published: Jan. 1, 2023
Parkinson's
disease
(PD)
is
a
common
neurodegenerative
characterized
by
motor
issues
and
range
of
non-motor
symptoms.
Microbial
therapy
may
be
useful
approach
for
the
treatment
PD.
However,
comprehensive
analyses
impact
probiotic
supplementation
on
symptoms
are
still
lacking
mechanisms
whereby
works
remain
unclear.
This
study
investigated
Lacticaseibacillus
paracasei
strain
Shirota
(LcS)
clinical
responses,
gut
microbiota
faecal
metabolites
in
PD
patients.
Patients
(n
=
128)
were
randomised
to
receive
either
probiotics
(LcS-fermented
milk,
containing
1
×
1010
living
LcS
cells)
or
placebo
12
weeks.
All
participants
examined
basic
features
recorded
using
questionnaires.
Fecal
blood
samples
collected
at
baseline
after
weeks
further
omics
analysis.
We
found
that
intervention
significantly
alleviated
patients'
constipation-related
no
significant
shifts
composition
metabolites.
Several
taxa
differentially
abundant
between
groups,
especially
with
regard
intake,
which
increased
abundance
genus
group
compared
those
group.
The
concentration
L-tyrosine
was
decreased
plasma
Our
demonstrated
although
did
not
induce
major
changes
global
microbiome,
had
favorable
effects
managing
constipation
other
registered
Chinese
Clinical
Trial
Registry:
ChiCTR1800016795.
Biomedicine & Pharmacotherapy,
Journal Year:
2023,
Volume and Issue:
161, P. 114468 - 114468
Published: March 1, 2023
Probiotics
are
frequently
consumed
as
functional
food
and
widely
used
dietary
supplements,
but
also
recommended
in
treating
or
preventing
various
gastrointestinal
diseases.
Therefore,
their
co-administration
with
other
drugs
is
sometimes
unavoidable
even
compulsory.
Recent
technological
developments
the
pharmaceutical
industry
permitted
development
of
novel
drug-delivery
systems
for
probiotics,
allowing
addition
to
therapy
severely
ill
patients.
Literature
data
regarding
changes
that
probiotics
could
impose
on
efficacy
safety
chronic
medication
scarce.
In
this
context,
present
paper
aims
review
currently
by
international
medical
community,
evaluate
relationship
between
gut
microbiota
pathologies
high
impact
worldwide
and,
most
importantly,
assess
literature
reports
concerning
ability
influence
pharmacokinetics/pharmacodynamics
some
drugs,
especially
those
narrow
therapeutic
indexes.
A
better
understanding
potential
drug
metabolism,
contribute
improving
management,
facilitating
individualized
updating
treatment
guidelines.
Neural Regeneration Research,
Journal Year:
2023,
Volume and Issue:
19(4), P. 833 - 845
Published: Aug. 14, 2023
A
growing
body
of
evidence
suggests
that
the
gut
microbiota
contributes
to
development
neurodegenerative
diseases
via
microbiota-gut-brain
axis.
As
a
contributing
factor,
dysbiosis
always
occurs
in
pathological
changes
diseases,
such
as
Alzheimer's
disease,
Parkinson's
and
amyotrophic
lateral
sclerosis.
High-throughput
sequencing
technology
has
helped
reveal
bidirectional
communication
between
central
nervous
system
enteric
is
facilitated
by
microbiota's
diverse
microorganisms,
for
both
neuroimmune
neuroendocrine
systems.
Here,
we
summarize
bioinformatics
analysis
wet-biology
validation
metagenomics
with
an
emphasis
on
multi-omics
studies
virome.
The
pathogen-associated
signaling
biomarkers
identifying
brain
disorders
potential
therapeutic
targets
are
also
elucidated.
Finally,
discuss
role
diet,
prebiotics,
probiotics,
postbiotics
exercise
interventions
remodeling
microbiome
reducing
symptoms
diseases.
Gut Pathogens,
Journal Year:
2023,
Volume and Issue:
15(1)
Published: March 6, 2023
Parkinson's
disease
(PD)
is
the
second
most
common
neurodegenerative
worldwide.
Gut
dysbiosis
hypothesized
to
cause
PD;
therefore,
whether
probiotics
can
be
used
as
adjuvants
in
treatment
of
PD
being
actively
investigated.We
performed
a
systematic
review
and
meta-analysis
evaluate
effectiveness
probiotic
therapy
patients.PUBMED/MEDLINE,
EMBASE,
Cochrane,
Scopus,
PsycINFO
Web
Science
databases
were
searched
till
February
20,
2023.
The
random
effects
model
effect
size
was
calculated
mean
difference
or
standardized
difference.
We
assessed
quality
evidence
using
Grade
Recommendations
Assessment,
Development
Evaluation
(GRADE)
approach.Eleven
studies
involving
840
participants
included
final
analysis.
This
showed
high-quality
improvement
Unified
Rating
Scale
Part
III
motor
scale
(standardized
[95%
confidence
interval])
(-
0.65
[-
1.11
-
0.19]),
non-motor
symptom
0.81
1.12
0.51]),
depression
0.70
0.93
-0.46]).
Moderate
low
significant
observed
gastrointestinal
motility
(0.83
[0.45-1.10]),
life
1.02
1.66
0.37]),
anxiety
0.72
1.10
0.35]),
serum
inflammatory
markers
5.98
9.20
2.75]),
diabetes
risk
3.46
4.72
2.20]).
However,
there
no
improvements
Bristol
Stool
scores,
constipation,
antioxidant
capacity,
dyslipidemia.
In
subgroup
analysis,
capsules
improved
compared
fermented
milk.Probiotic
supplements
may
suitable
for
improving
symptoms
reducing
depression.
Further
research
warranted
determine
mechanism
action
optimal
protocol.
MedComm,
Journal Year:
2024,
Volume and Issue:
5(8)
Published: July 20, 2024
Abstract
Previous
studies
have
shown
a
bidirectional
communication
between
human
gut
microbiota
and
the
brain,
known
as
microbiota–gut–brain
axis
(MGBA).
The
MGBA
influences
host's
nervous
system
development,
emotional
regulation,
cognitive
function
through
neurotransmitters,
immune
modulation,
metabolic
pathways.
Factors
like
diet,
lifestyle,
genetics,
environment
shape
composition
together.
Most
research
explored
how
regulates
host
physiology
its
potential
in
preventing
treating
neurological
disorders.
However,
individual
heterogeneity
of
microbiota,
strains
playing
dominant
role
diseases,
interactions
these
microbial
metabolites
with
central/peripheral
systems
still
need
exploration.
This
review
summarizes
driving
neurodevelopmental
disorders
(autism
spectrum
disorder
attention
deficit/hyperactivity
disorder),
neurodegenerative
diseases
(Alzheimer's
Parkinson's
disease),
mood
(anxiety
depression)
recent
years
discusses
current
clinical
preclinical
microbe‐based
interventions,
including
dietary
intervention,
probiotics,
prebiotics,
fecal
transplantation.
It
also
puts
forward
insufficient
on
provides
framework
for
further
Microorganisms,
Journal Year:
2024,
Volume and Issue:
12(2), P. 370 - 370
Published: Feb. 11, 2024
Recent
observational
studies
revealed
an
association
between
gut
microbiota
and
aging,
but
whether
are
causally
associated
with
the
aging
process
remains
unknown.
We
used
a
two-sample
Mendelian
randomization
approach
to
investigate
causal
biological
age
acceleration
using
largest
available
GWAS
summary
data
from
MiBioGen
consortium
on
acceleration.
further
conducted
sensitivity
analysis
MR-PRESSO,
MR-Egger
regression,
Cochran
Q
test,
reverse
MR
analysis.
Streptococcus
(IVW,
β
=
0.16,
p
0.0001)
was
Bioage
Eubacterium
(rectale
group)
0.20,
0.0190),
Sellimonas
0.06,
0.019),
Lachnospira
−0.18,
0.01)
were
suggestive
of
associations
acceleration,
latter
being
protective.
Actinomyces
0.26,
0.0083),
Butyricimonas
0.21,
0.0184),
Lachnospiraceae
(FCS020
0.24,
0.0194)
Phenoage
This
study
found
that
Further
randomized
controlled
trials
needed
its
role
in
process.