Frontiers in Genetics,
Journal Year:
2025,
Volume and Issue:
16
Published: March 3, 2025
Objective
Previous
research
has
demonstrated
that
metabolites
play
a
significant
role
in
modulating
disease
phenotypes;
nevertheless,
the
causal
association
between
and
malignant
malignancies
of
bones
joint
cartilage
(MNBAC)has
not
been
fully
elucidated.
Methods
This
study
used
two-sample
Mendelian
randomization
(MR)
to
explore
correlation
1,400
MNBAC.
Data
from
recent
genome-wide
studies
(GWAS)
involving
8,299
individuals
were
summarized.
The
GWAS
summary
data
for
acquired
IEU
Open
database,
while
those
MNBAC
contributed
by
Finnish
Consortium.
We
employed
eight
distinct
MR
methodologies:
simple
mode,
maximum
likelihood
estimator,
robust
adjusted
profile
score,
MR-Egger,
weighted
median,
MR-PRESSO
inverse
variance
scrutinize
engendered
each
gene
Consequently,
we
evaluated
outliers,
horizontal
pleiotropy,
heterogeneity,
impact
single
nucleotide
polymorphisms
(SNPs),
adherence
normal
distribution
assumption
analysis.
Results
Our
findings
suggested
plausible
causative
relationship
N-Formylmethionine
(FMet)
levels,
lignoceroylcarnitine
(C24)
observed
nearly
FMet
levels
within
cohort
(
P
=
0.024,
odds
ratio
(OR)
3.22;
95%
CI
[1.16–8.92]).
Moreover,
ascertained
link
C24
0.0009;
OR
0.420;
95%CI
[0.25–0.70]).
These
results
indicate
potential
FMet,
level
Conclusion
occurrence
may
be
causally
related
metabolites.
might
unveil
new
possibilities
investigating
early
detection
treatment
Journal of Affective Disorders,
Journal Year:
2023,
Volume and Issue:
329, P. 64 - 71
Published: Feb. 25, 2023
Several
studies
have
linked
gut
microbiota
to
human
brain
activity.
This
study
used
Mendelian
randomization
(MR)
investigate
the
causal
relationship
between
microbes
and
delirium.MR
was
select
SNPs
from
large-scale
GWAS
summary
data
on
211
taxa
delirium.
Inverse
variance
weighting
(IVW),
weighted
median,
MR-Egger
methods
were
for
statistical
analyses.
Outliers
assessed
using
leave-one-out
method.
To
avoid
horizontal
pleiotropy,
we
performed
MR-PRESSO
intercept
tests.
Cochran's
Q
I2
values
IVW
assess
heterogeneity.IVW
suggested
that
genetic
prediction
of
family
Desulfovibrionaceae
(1.784
(1.267-2.512),
P
=
0.001),
order
Desulfovibrionales
(1.501
(1.058-2.128),
0.023),
genus
Candidatus
Soleaferrea
(1.322
(1.052-1.659),
0.016)
increased
risk
delirium,
but
Oxalobacteraceae
(0.841
(0.722-0.981),
0.027),
genera
Holdemania
(0.766
(0.620-0.946),
0.013),
Ruminococcus
gnavus
(0.806
(0.661-0.982),
0.033),
Eggerthella
(0.815
(0.667-0.997),
0.047)
reduced
delirium.(1)
Limited
sample
size,
(2)
inability
interactions,
(3)
limited
European
populations.Our
results
suggest
presence
microbial
Desulfovibrionaceae,
Desulfovibrionales,
whereas
family,
Holdemania,
gnavus,
decreased
However,
potential
probiotic
interventions
in
prevention
perioperative
delirium
should
be
emphasized.
International Journal of Molecular Sciences,
Journal Year:
2023,
Volume and Issue:
24(17), P. 13338 - 13338
Published: Aug. 28, 2023
The
human
microbiota
refers
to
a
large
variety
of
microorganisms
(bacteria,
viruses,
and
fungi)
that
live
in
different
body
sites,
including
the
gut,
oral
cavity,
skin,
eyes.
In
particular,
presence
an
ocular
surface
with
crucial
role
maintaining
homeostasis
by
preventing
colonization
from
pathogen
species
has
been
recently
demonstrated.
Moreover,
recent
studies
underline
potential
association
between
gut
(GM)
health.
this
respect,
some
evidence
supports
existence
gut-eye
axis
involved
pathogenesis
several
diseases,
age-related
macular
degeneration,
uveitis,
diabetic
retinopathy,
dry
eye,
glaucoma.
Therefore,
understanding
link
GM
these
disorders
might
be
useful
for
development
new
therapeutic
approaches,
such
as
probiotics,
prebiotics,
symbiotics,
or
faecal
transplantation
through
which
could
modulated,
thus
allowing
better
management
diseases.
Journal of Medical Virology,
Journal Year:
2023,
Volume and Issue:
95(5)
Published: May 1, 2023
Several
studies
have
shown
a
possible
correlation
between
gut
microbiota
and
COVID-19.
However,
the
cause-and-effect
relationship
two
has
not
been
investigated.
We
conducted
two-sample
Mendelian
randomization
study
(MR)
using
publicly
available
GWAS
data.
Inverse
variance
weighted
(IVW)
analysis
was
main
MR
technique
supplemented
with
other
sensitivity
analyses.
Forty-two
bacterial
genera
were
associated
COVID-19
susceptibility,
hospitalization,
severity
in
IVW
method.
Among
these
microbiota,
five
(genus
unknowngenus
[id.1000005472],
family
unknownfamily
[id.1000005471],
genus
Tyzzerella3,
order
MollicutesRF9.id.11579,
phylum
Actinobacteria)
significantly
hospitalization
severity.
Three
(class
Negativicutes,
Selenomonadales,
class
while
Negativicutes
Selenomonadales)
severity,
susceptibility.
Sensitivity
did
detect
any
heterogeneity
horizontal
pleiotropy.
Our
findings
demonstrated
that
several
microorganisms
causally
linked
to
COVID-19,
improved
our
understanding
of
pathology.
Frontiers in Microbiology,
Journal Year:
2023,
Volume and Issue:
14
Published: June 19, 2023
Background
A
growing
number
of
studies
implies
a
strong
association
between
gut
microbiota
and
chronic
obstructive
pulmonary
disease
(COPD).
However,
the
causal
impact
COPD
remains
unclear.
As
result,
we
used
two-sample
Mendelian
randomization
(MR)
method
to
investigate
connection
in
this
study.
Methods
The
largest
available
genome-wide
study
(GWAS)
was
obtained
from
MiBioGen
consortium.
Summary-level
dataset
for
were
FinnGen
main
analysis
determining
link
inverse
variance
weighted
(IVW).
Subsequently,
pleiotropy
heterogeneity
tests
performed
determine
reliability
results.
Results
IVW
identified
9
bacterial
taxa
nominally
associated
with
risk
COPD.
Class
Actinobacteria
(
p
=
0.020),
genus
Allisonella
0.024),
Coprococcus2
0.002)
Oscillospira
0.018)
protective
against
In
addition,
order
Desulfovibrionales
0.011),
family
Desulfovibrionaceae
0.039),
Peptococcaceae
Victivallaceae
0.012)
Marvinbryantia
0.017)
higher
No
or
found.
Conclusion
According
findings
MR
analysis,
relationship
exists
certain
New
insights
into
mechanisms
mediated
by
are
provided.
BMC Cancer,
Journal Year:
2023,
Volume and Issue:
23(1)
Published: Nov. 10, 2023
Gut
microbiota
(GM)
comprises
a
vast
and
diverse
community
of
microorganisms,
recent
studies
have
highlighted
the
crucial
regulatory
roles
various
GM
their
secreted
metabolites
in
pancreatic
cancer
(PC).
However,
causal
relationship
between
PC
has
yet
to
be
confirmed.In
present
study,
we
used
two-sample
Mendelian
randomization
(MR)
analysis
investigate
effect
PC,
with
genome-wide
association
study
(GWAS)
from
MiBioGen
consortium
as
an
exposure
factor
GWAS
data
FinnGen
outcome
factor.
Inverse
variance
weighted
(IVW)
was
primary
method
for
this
study.At
genus
level,
observed
that
Senegalimassilia
(OR:
0.635,
95%
CI:
0.403-0.998,
P
=
0.049)
exhibited
protective
against
while
Odoribacter
(OR:1.899,
95%CI:1.157-3.116,
0.011),
Ruminiclostridium
9(OR:1.976,95%CI:1.128-3.461,
0.017),
Ruminococcaceae
(UCG011)(OR:1.433,
95%CI:1.072-1.916,
0.015),
Streptococcus(OR:1.712,
95%CI:1.071-1.736,
0.025)
were
identified
causative
factors
PC.
Additionally,
sensitivity
analysis,
Cochran's
Q
test,
pleiotropy
residual
sum
outlier
(MR-PRESSO),
MR-Egger
regression
indicated
no
heterogeneity,
horizontal
pleiotropy,
or
reverse
causality
PC.Our
establishes
specific
which
may
provide
new
insights
into
potential
pathogenic
mechanisms
assignment
effective
therapeutic
strategies.
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.
Frontiers in Immunology,
Journal Year:
2024,
Volume and Issue:
15
Published: March 8, 2024
Objective
Emerging
evidence
has
provided
compelling
linking
gut
microbiota
(GM)
and
diabetic
nephropathy
(DN)
via
the
“gut-kidney”
axis.
But
causal
relationship
between
them
hasn’t
been
clarified
yet.
We
perform
a
Two-Sample
Mendelian
randomization
(MR)
analysis
to
reveal
connection
with
GM
development
of
DN,
type
1
diabetes
(T1DN),
2
(T2DN),
mellitus
(T1DM),
(T2DM).
Methods
used
summary
data
from
MiBioGen
on
211
taxa
in
18340
participants.
Generalized
MR
methods
were
conducted
estimate
their
causality
risk
T1DN,
T2DN,
T1DM
T2DM
FinnGen.
To
ensure
reliability
findings,
comprehensive
set
sensitivity
analyses
confirm
resilience
consistency
results.
Results
It
was
showed
that
Class
Verrucomicrobiae
[odds
ratio
(OR)
=1.5651,
95%CI:1.1810-2.0742,
P
FDR=0.0018],
Order
Verrucomicrobiales
(OR=1.5651,
95%CI:
1.1810-2.0742,
FDR=0.0018)
Family
Verrucomicrobiaceae
(OR=1.3956,
95%CI:1.0336-1.8844,
FDR=0.0296)
had
significant
DN.
Our
found
associations
including
Verrucomimicrobiae
(OR=1.8227,
95%
CI:
1.2414-2.6763,
PFDR=0.0139),
1.8227-2.6764,
PFDR=0.0024),
Rhodospirillales
(OR=1.8226,
1.2412-2.6763,
PFDR=0.0026),
Verrucomicroniaceae
PFDR=0.0083).
The
Eubacteriumprotogenes
(OR=0.4076,
0.2415-0.6882,
PFDR=0.0021)
exhibited
protection
against
T1DN.
Sensitivity
confirmed
there
no
heterogeneity
pleiotropy.
Conclusions
At
gene
prediction
level,
we
identified
specific
is
causally
linked
DN
both
patients.
Moreover,
distinct
microbial
changes
T1DN
differed
those
seen
offering
valuable
insights
into
signatures
associated
subtype
nephropathy.
Frontiers in Microbiology,
Journal Year:
2025,
Volume and Issue:
16
Published: Feb. 27, 2025
The
etiology
and
pathogenesis
of
trigeminal
neuralgia
remain
unclear.
This
study
examines
the
connection
between
gut
microbiota
using
Mendelian
randomization
analysis
to
provide
insights
into
disorder's
origin
propose
potential
therapies
based
on
our
findings.
We
used
data
from
MiBioGen
consortium
(13,266
participants)
for
IEU
OpenGWAS
project
(800
cases,
195,047
controls)
neuralgia.
checked
heterogeneity
horizontal
pleiotropy
inverse
variance
weighting
method
as
main
approach
causal
link
bacteria
neuralgia,
MR-Egger,
simple
mode,
weighted
median,
mode
supplementary
methods,
with
a
sensitivity
test
leave-one-out
analysis.
If
bacteria-trigeminal
was
found,
we
conducted
reverse
confirmation.
According
final
results,
these
groups
include
Butyricimonas
(Genus,
id
=
945,
p-value
0.007,
OR
1.742,
95%
CI:
1.165-2.604),
unknowngenus
1000005479,
0.005,
1.774,
1.187-2.651)
Bacteroidales
(Family,
were
causally
associated
No
significant
results
according
In
study,
identified
specific
linked
To
comprehensively
understand
their
impact
mechanisms,
additional
randomized
trials
are
necessary.
Frontiers in Medicine,
Journal Year:
2023,
Volume and Issue:
10
Published: June 22, 2023
Accumulating
evidence
suggests
that
alterations
in
gut
microbiota
composition
and
diversity
are
associated
with
Atopic
dermatitis
(AD).
But
until
now,
the
causal
association
between
them
has
been
unclear.We
employed
a
two-sample
Mendelian
Randomization
(MR)
study
to
estimate
potential
causality
of
on
AD
risk.
The
summary
statistics
related
were
obtained
from
large-scale
genome-wide
genotype
16S
fecal
microbiome
dataset
18,340
individuals
(24
cohorts)
analyzed
by
MiBioGen
Consortium,
comprising
211
microbiota.
data
also
derived
strictly
defined
collected
FinnGen
biobank
analysis,
which
included
218,467
European
ancestors
(5,321
patients
213,146
controls).
inverse
variance
weighted
method
(IVW),
median
(WME),
MR-Egger
used
determine
changes
pathogenic
bacterial
taxa,
followed
sensitivity
analysis
including
horizontal
pleiotropy
Cochran's
Q
test,
leave-one-out
assess
reliability
results.
In
addition,
MR
Steiger's
test
was
suppositional
relationship
exposure
outcome.A
total
2,289
SNPs
(p
<
1
×
10-5)
included,
5
taxa
17
characteristics
(1
phylum,
3
classes,
order,
4
families,
8
genera),
after
excluding
IVs
linkage
disequilibrium
(LD).
Combining
results
IVW
models,
there
6
biological
(2
genera)
intestinal
flora
positively
risk
7
2
family,
negatively
associated.
showed
Tenericutes,
Mollicutes,
Clostridia,
Bifidobacteriaceae,
Bifidobacteriales,
Bifidobacterium,
Christensenellaceae
R
group
correlated
AD,
while
Clostridiaceae
1,
Bacteroidaceae,
Bacteroides,
Anaerotruncus,
unknown
genus,
Lachnospiraceae
UCG001
opposite
trend.
And
robust.
above
but
not
vice
versa.The
present
genetically
abundance
risk,
thus
only
providing
support
for
microecological
therapy
laying
groundwork
further
exploration
mechanisms
contributes
pathogenesis
AD.