Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Dec. 29, 2023
Abstract
Background
There
are
many
articles
reporting
that
the
component
of
intestinal
microbiota
implies
a
link
to
anxiety
disorders
(AD),
and
brain-gut
axis
is
also
hot
topic
in
current
research.
However,
specific
relevance
between
gut
AD
uncertain.
We
aimed
investigate
causal
relationship
by
using
bidirectional
Mendelian
randomization
(MR).
Methods
Genetic
instrumental
variable
(IV)
for
were
obtained
from
genome-wide
association
study
(GWAS)
involving
18,340
participants.
Summary
data
derived
GWAS
included
158,565
cases
300,995
controls.
applied
inverse
variance
weighting
(IVW)
method
as
main
analysis.
To
ensure
robustness
results,
we
further
executed
weighted
median
MR-Egger
regression
evaluate
potential
horizontal
pleiotropy.
Result
discovered
16
connections
bacterial
traits
AD.
Utilizing
IVW
method,
identified
7
species
exhibited
direct
correlation
with
risk
AD:
class
Negativicutes
,
genus
Eubacteriumbrachygroup
Coprococcus3
Enterorhabdus
Oxalobacter
Ruminiclostridium6
order
Selenomonadales
.
Additionally,
found
9
negative
Methanobacteria
family
Methanobacteriaceae
Porphyromonadaceae
Blautia
Butyricicoccus
Erysipelotrichaceae-UCG003
Parasutterella
Methanobacteriales
phylum
Proteobacteria
Conclusion
Our
relation
parts
Further
randomized
controlled
trials
crucial
elucidate
protective
effects
probiotics
on
their
particular
protection
systems.
Nutrients,
Journal Year:
2024,
Volume and Issue:
16(9), P. 1352 - 1352
Published: April 30, 2024
In
this
study,
a
systematic
review
of
randomized
clinical
trials
conducted
from
January
2000
to
December
2023
was
performed
examine
the
efficacy
psychobiotics—probiotics
beneficial
mental
health
via
gut–brain
axis—in
adults
with
psychiatric
and
cognitive
disorders.
Out
51
studies
involving
3353
patients
where
half
received
psychobiotics,
there
notably
high
measurement
effectiveness
specifically
in
treatment
depression
symptoms.
Most
participants
were
older
female,
treatments
commonly
utilizing
strains
Lactobacillus
Bifidobacteria
over
periods
ranging
4
24
weeks.
Although
general
agreement
on
variability
approaches
presentations
limits
comparability
generalization
findings.
This
underscores
need
for
more
personalized
optimization
deeper
investigation
into
mechanisms
through
which
psychobiotics
act.
The
research
corroborates
therapeutic
potential
represents
progress
management
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(11), P. 5782 - 5782
Published: May 26, 2024
Nowadays,
depressive
disorder
is
spreading
rapidly
all
over
the
world.
Therefore,
attention
to
studies
of
pathogenesis
disease
in
order
find
novel
ways
early
diagnosis
and
treatment
increasing
among
scientific
medical
communities.
Special
drawn
a
biomarker
therapeutic
strategy
through
microbiota–gut–brain
axis.
It
known
that
symbiotic
interactions
between
gut
microbes
host
can
affect
mental
health.
The
review
analyzes
mechanisms
action
microbiota
on
pathophysiology
depression.
possibility
using
knowledge
about
taxonomic
composition
metabolic
profile
patients
with
depression
select
gene
compositions
(metagenomic
signature)
as
biomarkers
evaluated.
use
silico
technologies
(machine
learning)
for
based
given.
Alternative
approaches
are
being
considered
by
balancing
microbial
dietary
modifications
additives,
namely
probiotics,
postbiotics
(including
vesicles)
prebiotics
psychobiotics,
fecal
transplantation.
bacterium
Faecalibacterium
prausnitzii
under
consideration
promising
new-generation
probiotic
auxiliary
diagnostic
analysis
conducted
this
may
be
useful
clinical
practice
pharmacology.
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.
Food Bioengineering,
Journal Year:
2024,
Volume and Issue:
3(1), P. 126 - 147
Published: March 1, 2024
Abstract
The
establishment
of
a
healthy
microbiota,
particularly
during
infancy,
profoundly
influences
psychological
health
and
neurological
function
through
the
gut‐brain
axis.
This
review
delves
into
intricate
connections
between
probiotics,
gut
microbiome
development,
their
impact
on
disorders.
Biotics,
live
microorganisms
with
proven
benefits,
have
emerged
as
promising
intervention,
critical
developmental
stages.
Administering
specific
probiotic
strains
(
Lactobacillus
species
Bifidobacterium
)
in
infancy
has
shown
promise
preventing
alleviating
disorders,
implications
for
well‐being.
bidirectional
communication
along
axis
underscores
potential
probiotics
influencing
outcomes,
ranging
from
anxiety
to
neurodevelopmental
Additionally,
this
explores
emerging
food
engineering
techniques
(microencapsulation,
genome
editing,
fermentation,
protein
engineering,
immobilization,
etc.)
employed
preparing
probiotic‐based
foods,
ensuring
viability
targeted
release
gastrointestinal
tract.
Nutrients,
Journal Year:
2024,
Volume and Issue:
16(14), P. 2260 - 2260
Published: July 13, 2024
We
conducted
a
12-week
randomized
double-blind
placebo-controlled
clinical
trial
to
investigate
the
potential
impact
of
Bifidobacterium
bifidum
(Bf-688)
supplementation
on
attention-deficit/hyperactivity
disorder
(ADHD).
Children
with
ADHD
who
were
already
receiving
stable
dose
methylphenidate
(MPH)
treatment
enrolled
and
randomly
assigned
two
groups:
one
add-on
Bf-688
(daily
bacterial
count
5
×
109
CFUs)
(n
=
51)
other
placebo
51).
All
participants
underwent
assessments
using
Conners’
Continuous
Performance
Test
(CPT)
Auditory
Attention
(CATA).
Additionally,
fecal
samples
collected
at
beginning
(week
0)
endpoint
12).
Remarkably,
group
supplementation,
but
not
group,
exhibited
significant
improvements
in
omission
errors
CPT
as
well
Hit
reaction
time
both
CATA.
Gut
microbiome
analysis
revealed
increase
Firmicutes
Bacteroidetes
ratio
(F/B
ratio)
only
group.
Furthermore,
we
identified
negative
correlations
between
N-Glycan
biosynthesis
Our
results
demonstrate
that
probiotic
supplement
can
enhance
neuropsychological
performance
children
ADHD,
possibly
by
altering
composition
gut
microbiota,
ultimately
leading
reduced
biosynthesis.
Abstract
Ageing
is
inevitable
and
poses
a
universal
challenge
for
all
living
organisms,
including
humans.
The
human
body
experiences
rapid
cell
division
metabolism
until
approximately
25
years
of
age,
after
which
the
accumulation
metabolic
by‐products
cellular
damage
leads
to
age‐related
diseases.
Neurodegenerative
diseases
are
concern
due
their
irreversible
nature,
lack
effective
treatment,
impact
on
society
economy.
Researchers
interested
in
finding
drugs
that
can
effectively
alleviate
ageing
without
side‐effects.
Psychobiotics
novel
class
probiotic
organisms
prebiotic
interventions
confer
mental
health
benefits
host
when
taken
appropriately.
Psychobiotic
strains
affect
functions
related
central
nervous
system
(CNS)
behaviors
mediated
by
Gut‐Brain‐Axis
(GBA)
through
various
pathways.
There
an
increasing
interest
researchers
these
microbial‐based
psychopharmaceuticals.
have
been
reported
reduce
neuronal
ageing,
inflammation,
oxidative
stress,
cortisol
levels;
increase
synaptic
plasticity
levels
neurotransmitters
antioxidants.
present
review
focuses
manifestation
elderly
neurodegenerative
disorders,
particularly
Alzheimer's
disease
(AD),
Parkinson's
(PD),
depression,
current
status
potential
alleviation
psychobiotic
interventions,
highlighting
possible
mechanisms
action.
Nutrition and Health,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 19, 2025
Background
Increasing
interest
in
probiotics
for
mental
health
has
led
to
products
marketed
consumers
claiming
psychological
benefits.
This
study
aimed
identify
claims
on
probiotic
supplements
and
provide
a
narrative
review
of
the
scientific
evidence
support
these
claims.
Methods
Probiotic
with
product
label
were
identified.
A
search
literature
was
performed
using
Google
Scholar,
PubMed
Cochrane
Central
Register
Controlled
Trials.
Studies
included
if
primary
outcome
or
biomarker
health,
they
investigated
exact
strain
combination
strains
as
present
product,
trial
conducted
either
humans
animals.
Included
studies
assessed
risk
bias.
Results
Fourteen
identified
containing
five
different
combinations.
Eighteen
relevant
investigating
outcomes
met
inclusion
criteria.
Ten
same
provided
made.
Statistically
significant
results
not
universally
all
products.
Conclusion
The
amount
quality
benefits
made
is
variable.
need
grading
system
facilitate
informed
consumer
decision-making
when
choosing
supplement
health.
Gut Microbes,
Journal Year:
2025,
Volume and Issue:
17(1)
Published: April 10, 2025
The
gut-brain
axis
(GBA)
denotes
the
dynamic
and
bidirectional
communication
system
that
connects
gastrointestinal
tract
central
nervous
(CNS).
This
review
explored
this
axis,
focusing
on
role
of
microbial
diversity
fitness
in
maintaining
health
preventing
neurodegeneration,
particularly
Alzheimer's
disease
(AD).
Gut
dysbiosis,
characterized
by
imbalance
populations
beneficial
harmful
bacteria,
has
been
associated
with
increased
systemic
inflammation,
neuroinflammation,
progression
AD
through
pathogenic
mechanisms
involving
amyloid
deposition,
tauopathy,
blood-brain
barrier
(BBB)
permeability.
Emerging
evidence
highlighted
therapeutic
potential
probiotics,
dietary
interventions,
intermittent
fasting
restoring
balance,
reducing
minimizing
neurodegenerative
risks.
Probiotics
synbiotics
are
promising
helping
improve
cognitive
function
metabolic
health,
while
patterns
like
Mediterranean
diet
were
linked
to
decreased
neuroinflammation
enhanced
communication.
Despite
significant
advancement,
further
research
is
needed
elucidate
specific
strains,
metabolites,
influencing
brain
health.
Future
studies
employing
longitudinal
designs
advanced
omics
technologies
essential
developing
targeted
microbiome-based
therapies
for
managing
AD-related
disorders.