Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: July 13, 2023
While
healthy
gut
microbiomes
are
critical
to
human
health,
pertinent
microbial
processes
remain
largely
undefined,
partially
due
differential
bias
among
profiling
techniques.
By
simultaneously
integrating
multiple
methods,
multi-omic
analysis
can
define
generalizable
processes,
and
is
especially
useful
in
understanding
complex
conditions
such
as
Autism.
Challenges
with
heterogeneous
data
produced
by
methods
be
overcome
using
Latent
Dirichlet
Allocation
(LDA),
a
promising
natural
language
processing
technique
that
identifies
topics
documents.
In
this
study,
we
apply
LDA
(16S
rRNA
amplicon,
shotgun
metagenomic,
metatranscriptomic,
untargeted
metabolomic
profiling)
from
the
stool
of
81
children
without
We
identify
topics,
or
summarize
phenomena
occurring
within
communities.
then
subset
samples
topic
distribution,
metabolites,
specifically
neurotransmitter
precursors
fatty
acid
derivatives,
differ
significantly
between
clusters
deemed
"cross-omic
topics",
which
hypothesize
representative
observable
regardless
method.
Interpreting
find
each
represents
particular
diet,
heuristically
label
cross-omic
as:
healthy/general
function,
age-associated
transcriptional
regulation,
opportunistic
pathogenesis.
International Journal of Molecular Sciences,
Journal Year:
2023,
Volume and Issue:
24(11), P. 9577 - 9577
Published: May 31, 2023
The
human
gut
microbiome
contains
the
largest
number
of
bacteria
in
body
and
has
potential
to
greatly
influence
metabolism,
not
only
locally
but
also
systemically.
There
is
an
established
link
between
a
healthy,
balanced,
diverse
overall
health.
When
becomes
unbalanced
(dysbiosis)
through
dietary
changes,
medication
use,
lifestyle
choices,
environmental
factors,
ageing,
this
profound
effect
on
our
health
linked
many
diseases,
including
metabolic
inflammatory
neurological
diseases.
While
humans
largely
association
dysbiosis
with
disease,
animal
models,
causative
can
be
demonstrated.
brain
particularly
important
maintaining
health,
strong
neurodegenerative
neurodevelopmental
This
suggests
that
microbiota
composition
used
make
early
diagnosis
diseases
modifying
microbiome-gut-brain
axis
might
present
therapeutic
target
for
have
proved
intractable,
aim
altering
trajectory
such
as
Alzheimer's
Parkinson's
multiple
sclerosis,
autism
spectrum
disorder,
attention-deficit
hyperactivity
among
others.
other
potentially
reversible
migraine,
post-operative
cognitive
dysfunction,
long
COVID,
which
considered
models
therapy
disease.
role
traditional
methods
microbiome,
well
newer,
more
novel
treatments
faecal
transplants
photobiomodulation,
are
discussed.
Gut Microbes,
Journal Year:
2025,
Volume and Issue:
17(1)
Published: Jan. 15, 2025
Crohn's
disease
(CD)
and
ulcerative
colitis
(UC)
are
chronic
relapsing
inflammatory
bowel
disorders
(IBD),
the
pathogenesis
of
which
is
uncertain
but
includes
genetic
susceptibility
factors,
immune-mediated
tissue
injury
environmental
influences,
most
appear
to
act
via
gut
microbiome.
We
hypothesized
that
host-microbe
alterations
could
be
used
prognostically
stratify
patients
experiencing
relapses
up
four
years
after
endoscopy.
therefore
examined
multiple
omics
data,
including
published
new
datasets,
generated
from
paired
inflamed
non-inflamed
mucosal
biopsies
142
with
IBD
(54
CD;
88
UC)
34
control
(non-diseased)
biopsies.
The
relapse-predictive
potential
16S
rRNA
gene
transcript
amplicons
(standing
active
microbiota)
were
investigated
along
host
transcriptomics,
epigenomics
genetics.
While
standard
single-omics
analysis
not
distinguish
between
who
relapsed
those
remained
in
remission
within
colonoscopy,
we
did
find
an
association
number
flares
a
patient's
succinotype.
Our
multi-omics
machine
learning
approach
was
also
able
predict
relapse
when
combining
features
microbiome
human
host.
Therefore
multi-omics,
rather
than
single
omics,
better
predicts
4
while
succinotype
associated
higher
frequency
relapses.
International Journal of Molecular Sciences,
Journal Year:
2023,
Volume and Issue:
24(23), P. 16660 - 16660
Published: Nov. 23, 2023
Autism
spectrum
disorder
(ASD)
is
a
complex
neurodevelopmental
condition
characterized
by
several
core
symptoms:
restricted
interests,
communication
difficulties,
and
impaired
social
interactions.
Many
ASD
children
experience
gastrointestinal
functional
disorders,
impacting
their
well-being.
Emerging
evidence
suggests
that
gut
microbiota
imbalance
may
exacerbate
symptoms.
Our
review
assesses
the
in
with
interventions
targeting
modulation.
The
analysis
of
forty-four
studies
(meta-analyses,
reviews,
original
research)
reveals
insights
into
microbiota-ASD
relationship.
While
specific
alterations
are
mixed,
some
trends
emerge.
exhibit
increased
Firmicutes
(36-81%)
Pseudomonadota
(78%)
decreased
Bacteroidetes
(56%).
to
ratio
tends
be
lower
(56%)
compared
without
ASD,
which
correlates
behavioral
abnormalities.
Probiotics,
particularly
Lactobacillus,
Bifidobacterium,
Streptococcus
strains,
show
promise
alleviating
symptoms
(66%).
Microbiota
transfer
therapy
(MTT)
seems
have
lasting
benefits
for
one
longitudinal
study.
Prebiotics
can
potentially
help
issues,
needing
further
research
conclusive
efficacy
due
different
being
used.
This
highlights
interplay,
offering
potential
therapeutic
avenues
gut-brain
axis.
However,
study
heterogeneity,
small
sample
sizes,
methodological
variations
emphasize
need
comprehensive,
standardized
research.
Future
investigations
unveil
mechanisms
linking
ultimately
enhancing
quality
life
affected
individuals.
Frontiers in Immunology,
Journal Year:
2024,
Volume and Issue:
15
Published: Feb. 21, 2024
The
bidirectional
communication
between
the
gut
and
brain
or
gut-brain
axis
is
regulated
by
several
microbes
microbial
derived
metabolites,
such
as
short-chain
fatty
acids,
trimethylamine
N-oxide,
lipopolysaccharides.
Gut
microbiota
(GM)
produce
neuroactives,
specifically
neurotransmitters
that
modulates
local
central
neuronal
functions.
An
imbalance
intestinal
commensals
pathobionts
leads
to
a
disruption
in
dysbiosis,
which
affects
barrier
integrity
gut-immune
neuroimmune
systems.
Currently,
fecal
transplantation
(FMT)
recommended
for
treatment
of
recurrent
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Jan. 8, 2024
Abstract
Autism
spectrum
disorder
(ASD)
is
a
highly
complex
neurodevelopmental
characterized
by
deficits
in
sociability
and
repetitive
behaviour,
however
there
great
heterogeneity
within
other
comorbidities
that
accompany
ASD.
Recently,
gut
microbiome
has
been
pointed
out
as
plausible
contributing
factor
for
ASD
development
individuals
diagnosed
with
often
suffer
from
intestinal
problems
show
differentiated
microbial
composition.
Nevertheless,
studies
rarely
agree
on
the
specific
bacterial
taxa
involved
this
disorder.
Regarding
potential
role
of
pathophysiology,
our
aim
to
investigate
whether
set
relevant
classification
using
sibling-controlled
dataset.
Additionally,
we
validate
these
results
across
two
independent
cohorts
several
confounding
factors,
such
lifestyle,
influence
both
studies.
A
machine
learning
approach,
recursive
ensemble
feature
selection
(REFS),
was
applied
16S
rRNA
gene
sequencing
data
117
subjects
(60
cases
57
siblings)
identifying
26
discriminate
controls.
The
average
area
under
curve
(AUC)
bacteria
dataset
81.6%.
Moreover,
selected
tenfold
cross-validation
scheme
(a
total
223
samples—125
98
controls).
We
obtained
AUCs
74.8%
74%,
respectively.
Analysis
REFS
identified
can
be
used
predict
status
children
three
distinct
AUC
over
80%
best-performing
classifiers.
Our
indicate
strong
association
should
not
disregarded
target
therapeutic
interventions.
Furthermore,
work
contribute
use
proposed
approach
signatures
datasets.
PNAS Nexus,
Journal Year:
2024,
Volume and Issue:
3(5)
Published: April 30, 2024
Abstract
There
is
increasing
evidence
for
the
role
of
gut
microbiome
in
regulation
socio-affective
behavior
animals
and
clinical
conditions.
However,
whether
how
composition
may
influence
social
decision-making
health
remains
unknown.
Here,
we
tested
causal
effects
a
7-week
synbiotic
(vs.
placebo)
dietary
intervention
on
altruistic
punishment
an
ultimatum
game.
Results
showed
that
increased
participants’
willingness
to
forgo
monetary
payoff
when
treated
unfairly.
This
change
was
related
changes
fasting-state
serum
levels
dopamine-precursor
tyrosine
proposing
potential
mechanistic
link
along
gut–microbiota–brain-behavior
axis.
These
results
improve
our
understanding
bidirectional
body–brain
interactions
play
why
humans
at
times
act
“irrationally”
according
standard
economic
theory.