Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Aug. 31, 2023
Abstract
Background
Studies
have
provided
evidence
of
alterations
in
the
diversity
and
composition
gut
microbiota
individuals
with
Gastroesophageal
reflux
disease
(GERD).
However,
causality
between
GERD
remains
uncertain.
Methods
Summary
data
on
were
obtained
from
publicly
available
genetic
databases
analyzed
by
using
two
sets
instruments.
MR
analyses
conducted
inverse
variance
weighted
(IVW;
primary
method
for
causal
inference
TSMR
analysis),
median,
Egger,
mode
methods.
Results
analysis
revealed
that
8
bacterial
taxa,
including
4
risk
factors
protective
factors,
associated
GERD.
IVW
results
showed
was
negatively
family
Bifidobacteriaceae
(P
=
0.026),
order
Bifidobacteriales
0.002),
Christensenellaceae
0.000),
genus
Odoribacter
0.024).
Conversely,
it
positively
class
Mollicutes
0.003),
phylum
Tenericutes
Rikenellaceae
0.015),
Prevotella
9
0.013).
Reverse
did
not
reveal
a
reverse
relationship
microbiota.
Conclusions
We
established
association
GERD,
thus
providing
groundbreaking
perspective
studying
pathogenesis
potential
strategies
its
prevention
treatment.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Feb. 8, 2024
Abstract
Background
Recent
studies
have
found
that
there
is
a
certain
correlation
between
gut
microbiota
(GM)
and
oral
cavity
cancer
(OCC).
However,
their
causality
unclear.
This
study
aimed
to
evaluate
the
causal
relationship
GM
OCC
identify
specific
pathogenic
microbial
taxa.
Materials
Methods
In
this
Two-Sample
Mendelian
Randomization
Study,GWAS
of
microbiome
from
MiBioGen
consortium
(18,340
samples
24
population-based
cohorts)
were
used
as
exposure
data.
addition,
outcome
data
(357
cases
372,016
controls)
extracted
IEU
Open
GWAS
project.
To
examine
characteristics
potentially
bacteria
in
OCC,
we
performed
two-sample
randomization
(MR)
analyses-based
genome-wide
association
(GWAS)
summary
statistics
with
use
inverse-variance-weighting
or
Wald
ratio.
Subsequently,
sensitivity
analyses
explore
robustness
primary
results.
Finally,
reverse
MR
analysis
mitigate
causality.
Result
A
total
2,699
single
nucleotide
polymorphisms
(SNPs)
associated
196
bacterial
genera
screened
instrumental
variables
(IVs),
results
suggested
following
taxonomic
groups
could
increase
risk
OCC:
order.
Burkholderiales
,
Bacillales
class.
Betaproteobacteria
genus.
Desulfovibrio
Pasteurellales
family.
Pasteurellaceae
Eubacteriumfissicatenagroup
Alcaligenaceae
LachnospiraceaeUCG004
Prevotella7
Peptococcus
.Conversely,
Butyrivibrio
Eggerthella
Clostridiumsensustricto1
Clostridiaceae1
phylum.
Lentisphaerae
exhibited
protective
effect
against
OCC.
Conclusion
Bacillus
orders,
phylums
Proteobacteria
are
an
increased
occ,
while
Genus
Butyrivibrio,
genus
Eggerthella,
Clostridium
reduce
development.
Our
supports
potential
several
but
how
affects
development
remains
be
further
explored.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 12, 2024
Abstract
A
large
body
of
clinical
data
and
observational
studies
suggest
that
intestinal
flora
is
associated
with
ulcerative
colitis
(UC).
However,
the
causal
relationship
between
gut
UC
remains
to
be
determined.
To
investigate
potential
UC,
a
two-sample
Mendelian
randomization
(MR)
analysis
was
performed
in
this
study.
We
obtained
genome-wide
association
for
from
published
GWAS
databases
dual
sample
MR
using
inverse
variance
weighting
(IVW)
identify
beneficial
or
deleterious
flora.
Sensitivity
analysis,
including
multi
potency
heterogeneity
assays,
validate
stability
primary
assays.
In
study,
we
found
negative
correlation
three
genera
bacteria
risk
developing
into
floras.
They
include
Genus
Butyrivibrio
[OR
=
0.908,
95%CI
(0.835,
0.987),
P
0.0229];
Clostridiuminnocuumgroup
0.847,
(0.752,
0.955),
0.00646];
Lactococcus
0.886,
(0.796,
0.986),
0.0263].
The
pleiotropy
showed
MR-Egger
regression
intercept
>
0.05
all
three,
Q-pval
indicating
there
no
above-mentioned
bacterial
groups.
This
study
expands
provides
theoretical
basis
further
relevant
experiments
studies.
Medical alphabet,
Journal Year:
2024,
Volume and Issue:
5, P. 23 - 26
Published: May 7, 2024
Cholelithiasis
is
a
fairly
common
disease
of
the
digestive
system,
affecting
from
10
%
to
15
adult
population.
Despite
many
studies
devoted
this
problem,
mechanisms
formation
gallstone
have
not
been
fully
elucidated.
Recently,
aspects
influence
intestinal
microbiota
on
various
pathologies
gastrointestinal
tract
such
as
non-alcoholic
fatty
liver
disease,
inflammatory
bowel
diseases,
irritable
syndrome,
pancreatic
gastroesophageal
reflux
considered.
The
presented
review
article
examines
possible
involvement
microbiome
in
pathogenesis
disease.
discusses
role
microorganisms
and
their
metabolites
gallstones.
Egyptian Journal of Medical Human Genetics,
Journal Year:
2024,
Volume and Issue:
25(1)
Published: June 21, 2024
Abstract
Background
Recent
researches
have
increasingly
indicated
a
strong
correlation
between
the
gut
microbiota
and
chronic
prostatitis/chronic
pelvic
pain
syndrome
(CP/CPPS).
Nevertheless,
impact
of
on
CP/CPPS
still
requires
further
elucidation.
Methods
Employing
summary
statistics
provided
by
MiBioGen
consortium,
we
executed
two-sample
Mendelian
randomization
(MR)
analysis.
The
study
involved
18,340
participants
considered
as
instrumental
variable.
Chronic
prostatitis
statistics,
representing
500
cases
208,308
controls,
were
extracted
from
GWAS
Catalog
release
data
disease
outcome.
Various
methods,
including
weighted
inverse
variance,
MR-Egger
median,
employed
to
assess
how
interact
correlate
with
CP/CPPS.
Sensitivity
analysis
was
used
eliminate
heterogeneity
horizontal
pleiotropy.
Results
Our
findings,
primarily
derived
IVW
approach,
evidence
for
causal
link
five
categories
Resultantly,
genus
Christensenellaceae
(OR
=
0.39,
95%
CI
0.17–0.87,
P
0.02),
Eisenbergiella
0.62,
0.40–0.97,
0.04),
Hungatella
0.49,
0.28–0.85,
0.01)
Terrisporobacter
0.20–0.75,
0.00)
exhibited
protective
CP/CPPS,
while
family
Prevotellaceae
1.78,
1.01–3.15,
0.05)
had
opposite
effect.
No
notable
variables
or
pleiotropy
detected.
Conclusions
findings
this
study,
which
indicate
This
could
be
valuable
in
offering
fresh
perspectives
additional
mechanistic
clinical
investigations
microbiota-related
randomized
controlled
trials
are
necessary
validation.
Frontiers in Microbiology,
Journal Year:
2024,
Volume and Issue:
15
Published: Aug. 29, 2024
Background
Several
observational
studies
have
reported
an
association
between
gut
microbiota
and
male
erectile
dysfunction
(ED).
However,
it
remains
unclear
whether
there
is
a
causal
relationship
ED.
Thus,
we
aimed
to
investigate
the
potential
ED
through
Mendelian
randomization
(MR)
analysis.
Objective
To
assess
ED,
performed
two-sample
MR
Methods
We
obtained
genome-wide
(GWAS)
data
from
MiBioGen
consortium
publicly
available
GWAS
on
OPEN
database.
Subsequently,
analysis
evaluate
Finally,
sensitivity
analysis,
including
Cochran’s
Q
test,
MR-Egger
intercept
MR-PRESSO,
leave-one-out
level
of
heterogeneity
horizontal
pleiotropy
in
results.
Results
Our
revealed
negative
genus
Ruminococcaceae
UCG013
(OR
=
0.761,
95%
CI
0.626–0.926),
while
family
Lachnospiraceae,
Lachnospiraceae
NC2004
group,
Oscillibacter,
Tyzzerella3
may
be
associated
with
increased
risk
highest
observed
for
1.264,
1.063–1.504).
Furthermore,
confirmed
reliability
our
positive
findings.
Conclusion
This
contribute
better
understanding
applications
occurrence
treatment
Medicine,
Journal Year:
2024,
Volume and Issue:
103(43), P. e40236 - e40236
Published: Oct. 25, 2024
Increasing
evidence
indicates
a
significant
correlation
between
gut
microbiota
(GM)
and
susceptibility
to
chronic
kidney
disease
(CKD).
However,
causal
relationship
presence
remains
uncertain.
Mendelian
randomization
(MR)
was
applied
evaluate
potential
relation
from
GM
CKD.
Genomic
association
analysis
aggregates
publicly
online
databases,
utilizing
Genome-Wide
Association
Study
(GWAS)
database
focused
on
For
examination
of
connection
CKD,
2-way,
2-sample
method
applied.
Sensitivity
analyses
were
utilized
scrutinize
for
heterogeneity,
horizontal
pleiotropy,
MR
outcomes
resilience.
Result
inverse
variance
weighting
(IVW)
revealed
that
10
microbiotas
such
as
Porphyromonadaceae
(OR
=
1.351,
95%
CI:
1.114–1.638,
P
.002),
Dorea
1.236,
1.040–1.468,
.016),
Ruminococcus
torques
group
1.290,
1.035–1.608,
.024)
are
CKD
risk
factors.
Five
microbiotas,
including
the
Prevotellaceae
0.814,
0.719–0.922,
.001)
protective
reveal
no
pleiotropy
or
heterogeneity.
Additionally,
reverse
results
unveiled
disorders
in
3
Senegalimassilia
.
According
investigation,
employed
delve
into
reciprocal
Our
findings
identified
15
types
causally
linked
well
demonstrating
associations
with
GM.
Further
exploration
these
associated
is
hopeful
raise
novel
insights,
preventing
early
monitoring.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 30, 2024
Abstract
Background
Epidemiological
studies
reported
controversial
results
regarding
the
relationship
between
cholelithiasis,
cholecystectomy
and
colorectal
cancer
(CRC).
In
presence
of
reverse
causality
confounding
factors,
findings
our
previous
retrospective
study
that
it
was
gallbladder
disease
rather
than
a
risk
factor
for
not
sufficiently
convincing.
Therefore,
we
used
Mendelian
randomization
(MR)
to
further
explore
cholelithiasis
or
CRC.
Methods
We
performed
univariate
MR
(UVMR)
multivariate
(MVMR)
analysis
1,054,773
samples
37,970,958
SNPs
from
three
European
genome-wide
association
(GWAS)
The
forward
analysis,
with
as
exposure
CRC
outcome,
included
UVMR
MVMR
analysis.
UVMR,
21
30
independent
strongly
(P
<
5*10−
8)
associated
on
were
extracted
valid
instrumental
variables
(IVs);
in
MVMR,
14
26
IVs
extracted,
respectively.
inverse
only
MVMR.
9
7
estimated
using
multiplicative
random
effects-inverse
variance
weighted
(MRE-IVW),
simple
mode
(SM),
median
(WME),
(WMO)
MR-Egger
regression
methods,
Sensitivity
heterogeneity
test,
pleiotropy
test
leave-one-out
test.
presented
scatter
plots,
forest
plots
funnel
plots.
Results
neither
nor
by
MRE-IVW
revealed
causal
(OR
=
1.0002,
95%
CI
0.999–1.001,
P
0.729
OR
1.0003,
0.998–1.003,
0.799,
respectively)
0.9917,
0.963–1.022,
0.582
0.9897,
0.936–1.046,
0.715,
respectively).
estimates
also
little
evidence
0.0504,
0.001–2.871,
0.147)
0.9894,
0.792–1.236,
0.925).
other
estimation
methods
consistent
MRE-IVW.
confirmed
stability
reliability
results.
Conclusions
Our
two-sample
causally
cancer.
Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Dec. 23, 2023
Abstract
Background
Numerous
studies
indicate
that
the
gut
microbiome
is
closely
associated
with
prostate
cancer
(PCa),
however,
owing
to
various
confounding
factors,
causal
relationship
between
microbiota
and
PCa
remains
unclear.
Methods
A
two-sample
Mendelian
randomization
(MR)
analysis
utilized
genome-wide
association
study
(GWAS)
data
on
of
18,340
participants
GWAS
summary
statistics
involving
46,3010
participants.
Inverse
variance
weighted
(IVW)
served
as
primary
method,
complemented
by
MR-Egger
median
method
(WME),
simple
mode
(SM),
(WM).
Finally,
confirm
robustness
results,
heterogeneity
test,
pleiotropy
leave-one-out
sensitivity
test
were
conducted.
Results
IVW
revealed
12
microbial
taxa
potentially
causally
PCa;
genera
Victivallis,
Akkermansia,
Odoribacter,
Butyrivibrio,
families
Enterobacteriaceae,
Verrucomicrobiaceae,
well
orders
Verrucomicrobiales,
Enterobacteriales
class
Verrucomicrobiae,
found
be
positively
risk.
Conversely,
Eubacterium
ruminantium
group,
Candidatus
Soleaferrea,
RuminococcaceaeUCG003
negatively
Conclusions
Our
MR
study's
results
support
a
genetically
predicted
PCa,
they
identify
specific
taxa.
These
findings
could
offer
new
targets
for
screening
treatment.
Frontiers in Medicine,
Journal Year:
2024,
Volume and Issue:
11
Published: Feb. 1, 2024
The
formation
of
an
internal
fistula
between
the
biliary
system
and
gastrointestinal
tract
is
a
rare
condition
with
various
etiologies,
predominantly
associated
recurrent
chronic
inflammation
tumors.
Patients
this
may
lack
specific
clinical
manifestations,
presenting
symptoms
such
as
abdominal
pain,
fever,
jaundice,
or
show
no
signs
at
all.
Common
types
fistulas
include
cholecystoduodenal
fistula,
cholecystocolonic
choledochoduodenal
fistula.
Among
these,
right
hepaticoduodenal
extremely
seldom
reported
in
literature.
We
herein
report
case
analyze
its
mechanism,
treatment
principles,
preventive
measures
through
literature
review.