Biomedicines,
Journal Year:
2022,
Volume and Issue:
10(9), P. 2057 - 2057
Published: Aug. 23, 2022
Numerous
studies
have
highlighted
the
role
of
gastrointestinal
system
in
Parkinson
disease
pathogenesis.
It
is
likely
triggered
by
proinflammatory
markers
produced
specific
gut
bacteria.
This
review's
aim
to
identify
bacterial
biomarkers
disease.
A
comprehensive
search
for
original
research
papers
on
microbiota
composition
was
conducted
using
PubMed,
Embase,
and
Scopus
databases.
Research
intestinal
permeability,
nasal
oral
microbiomes,
interventional
were
excluded.
The
yielded
results
categorized
into
four
groups:
vs.
healthy
controls;
severity;
non-motor
symptoms;
clinical
phenotypes.
review
accordance
with
PRISMA
2020
statement.
total
51
met
eligibility
criteria.
In
controls
group,
22
bacteria
deemed
potentially
important.
severity
category,
two
distinguished.
symptoms
phenotypes
categories,
no
distinct
pathogen
identified.
this
report
varying
taxonomic
levels,
which
prevents
authors
from
reaching
a
clear
conclusion.
Future
should
follow
unified
methodology
order
potential
Nutrients,
Journal Year:
2022,
Volume and Issue:
14(13), P. 2661 - 2661
Published: June 27, 2022
The
involvement
of
the
gut
microbiota
and
metabolites
colon-residing
bacteria
in
brain
disease
pathogenesis
has
been
covered
a
growing
number
studies,
but
comparative
literature
is
scarce.
To
fill
this
gap,
we
explored
contribution
microbiota-gut-brain
axis
to
pathophysiology
seven
brain-related
diseases
(attention
deficit
hyperactivity
disorder,
autism
spectrum
schizophrenia,
Alzheimer's
disease,
Parkinson's
major
depressive
bipolar
disorder).
In
article,
discussed
changes
bacterial
abundance
metabolic
implications
these
on
development
progression.
Our
central
findings
indicate
that,
mechanistically,
all
are
associated
with
leaky
gut,
neuroinflammation,
over-activated
microglial
cells,
which
gut-residing
their
important
contributors.
Patients
show
pro-inflammatory
shift
colon
microbiota,
harbouring
more
Gram-negative
containing
immune-triggering
lipopolysaccharides
(LPS)
cell
walls.
addition,
properties
(
Mediators of Inflammation,
Journal Year:
2023,
Volume and Issue:
2023, P. 1 - 16
Published: Feb. 8, 2023
Background
and
Object.
There
is
a
growing
body
of
evidence
highlighting
the
significant
role
gut
microbiota
in
various
neurological
psychiatric
disorders.
We
performed
an
mapping
to
review
association
between
different
these
disorders
assessed
strength
for
associations.
Methods.
searched
PubMed,
Cochrane
Library,
Epistemonikos
identify
systematic
reviews
meta-analysis
(SRs).
diseases
disorders,
including
Alzheimer’s
disease
(AD),
attention
deficit
hyperactivity
disorder
(ADHD),
amyotrophic
lateral
sclerosis
(ALS),
autism
spectrum
(ASD),
anorexia
nervosa
(AN),
bipolar
(BD),
eating
(ED),
generalized
anxiety
(GAD),
major
depressive
(MDD),
multiple
(MS),
obsessive
compulsive
(OCD),
Parkinson’s
(PD),
posttraumatic
stress
(PTSD),
spinal
cord
injury
(SCI),
schizophrenia,
stroke.
used
A
Measurement
Tool
Assess
Systematic
Reviews
(AMSTAR-2)
evaluate
quality
included
SRs.
also
created
map
showing
certainty
evidence.
Results.
In
total,
42
studies
were
this
mapping.
Most
findings
obtained
from
observational
studies.
According
AMSTAR-2
assessment,
21
SRs
scored
“critically
low”
terms
methodological
quality,
16
SR
“low,”
5
“moderate.”
total
15
have
been
investigated
potential
microbiome
alpha
diversity
disease,
with
Shannon
index
Simpson
being
most
widely
studied.
12
link
beta
disease.
At
phylum
level,
Firmicutes,
Bacteroidetes,
Actinobacteria,
Proteobacteria,
Verrucomicrobia
more
researched.
genus
Prevotella,
Coprococcus,
Parabacteroides,
Phascolarctobacterium,
Escherichia
Shigella,
Alistipes,
Sutteralla,
Veillonella,
Odoribacter,
Faecalibacterium,
Bacteroides,
Bifidobacterium,
Dialister,
Blautia
Some
found
specific
flora
changes,
some
common
intestinal
microbiological
changes.
Conclusion.
varied
levels
associations
diseases;
increased
risk
diseases,
whereas
others
showed
benefit
that
might
be
promising
therapeutic
targets
such
diseases.
Frontiers in Neurology,
Journal Year:
2022,
Volume and Issue:
13
Published: Nov. 10, 2022
Depression
is
a
worldwide
disease
causing
severe
disability,
morbidity,
and
mortality.
Despite
abundant
studies,
the
precise
mechanisms
underlying
pathophysiology
of
depression
remain
elusive.
Recently,
cumulate
research
suggests
that
disturbance
microbiota-gut-brain
axis
may
play
vital
role
in
etiology
while
correcting
this
could
alleviate
symptoms.
The
vagus
nerve,
linking
brain
gut
through
its
afferent
efferent
branches,
critical
route
bidirectional
communication
axis.
Directly
or
indirectly,
fibers
can
sense
relay
microbiota
signals
to
induce
disorders
including
depression.
Also,
changes
response
stress
result
hyperpermeability
inflammation
mediating
by
vagal
efferents,
which
be
detrimental
Notably,
nerve
stimulation
owns
an
anti-inflammatory
effect
was
proved
for
treatment.
Nevertheless,
accompanied
low
tone,
derive
from
contribute
pathogenesis
In
review,
we
aim
explore
perspective
axis,
highlighting
relationship
among
hyperpermeability,
inflammation,
Current Issues in Molecular Biology,
Journal Year:
2022,
Volume and Issue:
44(4), P. 1434 - 1451
Published: March 22, 2022
The
role
of
the
microbiota-gut-brain
(MGB)
axis
in
mood
regulation
and
depression
treatment
has
gained
attention
recent
years,
as
evidenced
by
growing
number
animal
human
studies
that
have
reported
anti-depressive
associated
gamma-aminobutyric
acid-ergic
(GABAergic)
effects
probiotics
developed
from
Lactobacillus
rhamnosus
bacterial
strains
gut
microbiome.
depressive
states
attenuated
these
patients
suffering
clinical
also
characterize
severe
relapse-inducing
withdrawal
phase
addiction
cycle,
which
been
found
to
arise
intoxication-enabled
hyperregulation
hypothalamic-pituitary-adrenal
(HPA)
axis,
body's
major
stress
response
system,
a
corresponding
attenuation
its
main
inhibitory
acid
(GABA)
signaling
system.
Therefore,
use
general
cases
provides
hope
for
novel
therapeutic
approach
remediation.
This
review
discusses
potential
avenues
probiotic
application
can
be
used
restore
central
GABAergic
activity
responsible
attenuating
depression-inducing
HPA
hyperactivity
withdrawal.
Also,
information
is
provided
on
brain
other
known
GABA-producing
microbiota.
Progress in Neuro-Psychopharmacology and Biological Psychiatry,
Journal Year:
2023,
Volume and Issue:
128, P. 110861 - 110861
Published: Sept. 9, 2023
There
is
a
lot
of
evidence
establishing
that
nervous
system
development
related
to
the
composition
and
functions
gut
microbiome.
In
addition,
central
(CNS)
controls
imbalance
intestinal
microbiota,
constituting
bidirectional
communication
system.
At
present,
various
gut-brain
crosstalk
routes
have
been
described,
including
immune,
endocrine
neural
circuits
via
vagal
pathway.
Several
empirical
data
associated
microbiota
alterations
(dysbiosis)
with
neuropsychiatric
diseases,
such
as
Alzheimer's
disease,
autism
Parkinson's
other
psychological
disorders,
like
anxiety
depression.
Fecal
transplantation
(FMT)
therapy
has
shown
can
transfer
behavioral
features
recipient
animals,
which
provides
strong
establish
causal-effect
relationship.
Interventions,
based
on
prebiotics,
probiotics
or
synbiotics,
demonstrated
an
important
influence
neurological
disorders
by
synthesis
neuroactive
compounds
interact
regulation
inflammatory
processes.
Further
research
needed
demonstrate
dysbiosis
psychiatric
how
microbiota-based
interventions
may
be
used
potential
therapeutic
tools.
Frontiers in Psychiatry,
Journal Year:
2023,
Volume and Issue:
14
Published: Feb. 23, 2023
The
need
to
find
new
therapeutic
interventions
in
patients
diagnosed
with
psychiatric
disorders
is
supported
by
the
data
suggesting
high
rates
of
relapse,
chronic
evolution,
resistance,
or
lack
adherence
and
disability.
use
pre-,
pro-,
synbiotics
as
add-ons
management
has
been
explored
a
way
augment
efficacy
psychotropics
improve
chances
for
these
reach
response
remission.
This
systematic
literature
review
focused
on
tolerability
psychobiotics
main
categories
it
conducted
through
most
important
electronic
databases
clinical
trial
registers,
using
PRISMA
2020
guidelines.
quality
primary
secondary
reports
was
assessed
criteria
identified
Academy
Nutrition
Diabetics.
Forty-three
sources,
mostly
moderate
quality,
were
reviewed
detail,
regarding
assessed.
Studies
exploring
effects
mood
disorders,
anxiety
schizophrenia
spectrum
substance
eating
attention
deficit
hyperactivity
disorder
(ADHD),
neurocognitive
autism
(ASD)
included.
overall
good,
but
evidence
support
their
specific
mixed.
There
have
favor
probiotics
ADHD,
ASD,
also
association
selenium
disorders.
In
several
domains,
research
still
an
early
phase
development,
e.g.,
(only
three
preclinical
studies
being
found)
(one
identified).
Although
no
well-defined
recommendation
could
yet
be
formulated
product
there
encouraging
further
research,
especially
if
identification
sub-populations
that
may
benefit
from
this
intervention.
Several
limitations
field
should
addressed,
i.e.,
majority
finalized
trials
are
short
duration,
inherent
heterogeneity
diversity
Philae
prevents
generalizability
results
studies.
Brain Research Bulletin,
Journal Year:
2024,
Volume and Issue:
207, P. 110883 - 110883
Published: Jan. 18, 2024
The
link
between
drug-induced
dysbiosis
and
its
influence
on
brain
diseases
through
gut-residing
bacteria
their
metabolites,
named
the
microbiota-gut-brain
axis
(MGBA),
remains
largely
unexplored.
This
review
investigates
effects
of
commonly
prescribed
drugs
(metformin,
statins,
proton-pump-inhibitors,
NSAIDs,
anti-depressants)
gut
microbiota,
comparing
findings
with
altered
bacterial
populations
in
major
(depression,
multiple
sclerosis,
Parkinson's
Alzheimer's).
report
aims
to
explore
whether
can
development
progression
via
MGBA.
Central
indicate
that
all
explored
induce
dysbiosis.
These
patterns
were
associated
disorders.
varied
across
different
taxa,
possibly
mediated
by
direct
or
metabolites.
Each
drug
induced
both
positive
negative
changes
abundance
bacteria,
indicating
a
counterbalancing
effect.
Moreover,
above-mentioned
exhibited
similar
effects,
suggesting
they
may
counteract
enhance
each
other's
when
taken
together
comorbid
patients.
In
conclusion,
interplay
species
abundances
have
greater
impact
than
individual
strains.
Future
research
is
needed
better
understand
implications
for
disease
pathogenesis,
potential
develop
more
effective
therapeutic
options
patients
brain-related
diseases.