Frontiers in Cardiovascular Medicine,
Journal Year:
2023,
Volume and Issue:
10
Published: Feb. 6, 2023
Previous
studies
have
shown
controversy
about
whether
dried
fruit
intake
is
associated
with
cardiovascular
disease.
This
study
aimed
to
examine
the
potential
causal
effect
of
on
disease
by
conducting
a
two-sample
Mendelian
randomization
study.We
used
genome-wide
association
(GWAS)
summary
statistics
for
MR
analysis
explore
CVD.
The
inverse-variance
weighted
(IVW)
method
was
as
main
analytical
analysis.
In
addition,
MR-Egger
and
median
were
applied
supplement
IVW
method.
Furthermore,
Cochrane's
Q
test,
intercept
MR-PRESSO
global
leave-one-out
perform
sensitivity
analysis.The
results
from
indicated
that
could
reduce
risk
heart
failure
[odds
ratio
(OR)
=
0.6014,
95%
confidence
interval
(CI):
0.4243-0.8522,
p-value
0.0043],
total
ischemic
stroke
(OR
0.4547,
CI:
0.2950-0.7010,
0.0004),
small
vessel
0.3499,
0.1466-0.8349,
0.0180).
two
additional
methods
(MR
Egger
Weighted
median)
parallel
effects
estimated
IVW.
illustrates
our
unaffected
heterogeneity
horizontal
pleiotropy.
Finally,
showed
robustness
results.Our
provides
evidence
benefits
Therefore
reasonable
consumption
may
provide
primary
prevention.
Journal of Translational Medicine,
Journal Year:
2022,
Volume and Issue:
20(1)
Published: May 13, 2022
Abstract
Background
The
2019
coronavirus
disease
pandemic
(COVID-19)
poses
an
enormous
threat
to
public
health
worldwide,
and
the
ensuing
management
of
social
isolation
has
greatly
decreased
opportunities
for
physical
activity
(PA)
increased
leisure
sedentary
behaviors
(LSB).
Given
that
both
PA
LSB
have
been
established
as
major
influencing
factors
obesity,
diabetes
cardiometabolic
syndrome,
whether
PA/LSB
in
turn
affects
susceptibility
COVID-19
by
disrupting
metabolic
homeostasis
remains
be
explored.
In
this
study,
we
aimed
systematically
evaluate
causal
relationship
between
susceptibility,
hospitalization
severity
using
a
Mendelian
randomization
study.
Methods
Data
were
obtained
from
large-scale
dataset
(N
=
377,000),
422,218)
Host
Genetics
Initiative
2,586,691).
effects
estimated
with
inverse
variance
weighted,
MR-Egger,
weighted
median
MR-PRESSO.
Sensitivity
analyses
implemented
Cochran’s
Q
test,
MR-Egger
intercept
MR-PRESSO,
leave-one-out
analysis
funnel
plot.
Risk
factor
further
conducted
investigate
potential
mediators.
Results
Genetically
predicted
accelerometer-assessed
risk
(OR
0.93,
95%
CI
0.88–0.97;
P
0.002),
while
television
watching
significantly
1.55,
1.29–1.88;
4.68
×
10
–6
)
1.85,
1.33–2.56;
0.0002)
after
Bonferroni
correction.
No
self-reported
moderate
vigorous
(MVPA),
accelerometer
fraction
accelerations
>
425
milligravities,
computer
use
or
driving
on
progression
observed.
indicated
above
associations
might
mediated
several
factors,
including
smoking,
high
body
mass
index,
elevated
serum
triglyceride
levels,
insulin
resistance
occurrence
type
2
diabetes.
Conclusion
Our
findings
supported
effect
reduced
well
severity,
which
was
potentially
obesity
diabetes-related
phenotypes.
Particular
attention
should
given
reducing
encouraging
proper
exercise
during
quarantine
COVID-19.
Frontiers in Cellular and Infection Microbiology,
Journal Year:
2023,
Volume and Issue:
13
Published: March 31, 2023
Background
Previous
studies
have
reported
that
gut
microbiota
is
associated
with
an
increased
risk
of
chronic
kidney
disease
(CKD)
progression.
However,
whether
has
a
causal
effect
on
the
development
CKD
not
been
revealed.
Thus,
we
aimed
to
analyze
potential
using
mendelian
randomization
(MR)
study.
Materials
and
Methods
Independent
single
nucleotide
polymorphisms
closely
196
bacterial
taxa
(N
=
18340)
were
identified
as
instrumental
variables.
Two-sample
MR
was
performed
evaluate
480698),
including
inverse-variance-weighted
(IVW)
method,
weighted
median
MR-Egger,
mode-based
estimation
MR-PRESSO.
The
robustness
tested
by
series
sensitivity
analyses
Cochran’s
Q
test,
MR-Egger
intercept
analysis,
leave-one-out
analysis
funnel
plot.
Statistical
powers
also
calculated.
Results
genetically
predicted
higher
abundance
order
Desulfovibrionales
causally
(odds
ratio
1.15,
95%
confidence
interval:
1.05-1.26;
p
0.0026).
Besides,
detected
causalities
between
nine
other
(
Eubacterium
eligens
group
,
Desulfovibrionaceae
Ruminococcaceae
UCG-002
Deltaproteobacteria
Lachnospiraceae
UCG-010
Senegalimassilia
Peptostreptococcaceae
Alcaligenaceae
Ruminococcus
torques
)
<
0.05).
No
heterogeneity
or
pleiotropy
for
significant
estimates.
Conclusion
We
found
are
CKD,
thus
confirming
plays
important
role
in
pathogenesis
CKD.
Our
work
provides
new
indicators
targets
screening
prevention
Journal of Translational Medicine,
Journal Year:
2024,
Volume and Issue:
22(1)
Published: April 29, 2024
Abstract
Background
Epidemiological
evidence
links
a
close
correlation
between
long-term
exposure
to
air
pollutants
and
autoimmune
diseases,
while
the
causality
remained
unknown.
Methods
Two-sample
Mendelian
randomization
(TSMR)
was
used
investigate
role
of
PM10,
PM2.5,
NO
2
,
X
(N
=
423,796–456,380)
in
15
diseases
14,890–314,995)
using
data
from
large
European
GWASs
including
UKB,
FINNGEN,
IMSGC,
IPSCSG.
Multivariable
(MVMR)
conducted
direct
effect
each
pollutant
mediating
common
factors,
body
mass
index
(BMI),
alcohol
consumption,
smoking
status,
household
income.
Transcriptome-wide
association
studies
(TWAS),
two-step
MR,
colocalization
analyses
were
performed
explore
underlying
mechanisms
pollution
diseases.
Results
In
TSMR,
after
correction
multiple
testing,
hypothyroidism
causally
associated
with
higher
[odds
ratio
(OR):
1.37,
p
9.08
×
10
–4
]
[OR:
1.34,
2.86
–3
],
ulcerative
colitis
(UC)
2.24,
1.23
–2
PM2.5
2.60,
5.96
rheumatoid
arthritis
1.72,
1.50
systemic
lupus
erythematosus
4.92,
6.89
celiac
disease
lower
0.14,
6.74
0.17,
3.18
].
The
risky
effects
on
UC
significant
MVMR
adjusting
for
other
pollutants.
revealed
several
mediators
Transcriptional
analysis
identified
specific
gene
transcripts
pathways
interconnecting
Two-step
MR
that
POR,
HSPA1B,
BRD2
might
mediate
POR
pQTL
(rs59882870,
PPH4=1.00)
strongly
colocalized
Conclusion
This
research
underscores
necessity
rigorous
surveillance
within
public
health
curb
prevalence
Graphical
abstract
(Built
by
Biorender)
Frontiers in Cellular and Infection Microbiology,
Journal Year:
2023,
Volume and Issue:
13
Published: May 25, 2023
Introduction
The
oral
cavity
and
the
gut
tract
are
interconnected,
both
contain
abundant
natural
microbiota.
Gut
microbiota
may
interact
with
flora
participate
in
development
of
periodontitis.
However,
specific
role
certain
taxa
for
periodontitis
has
not
been
investigated.
Mendelian
Randomization
is
an
ideal
method
to
explore
causal
relationships
avoiding
reverse
causality
potential
confounding
factors.
Thus,
we
conducted
a
two-sample
study
comprehensively
reveal
genetic
effect
on
Methods
SNPs
strongly
associated
196
(18,340
individuals)
were
selected
as
instrument
variables,
(17,353
cases
28,210
controls)
was
used
outcome.
analyzed
via
random
inverse
variance-weighted,
weighted
median,
MR-Egger.
sensitivity
analyses
using
Cochran’s
Q
tests,
funnel
plots,
leave-one-out
analyses,
MR-Egger
intercept
tests.
Results
Nine
(
Prevotella
7,
Lachnospiraceae
UCG-008,
Enterobacteriales
,
Pasteurellales
Enterobacteriaceae
Pasteurellaceae
Bacteroidales
S24.7
group,
Alistipes
Eisenbergiella
)
predicted
play
enhancing
risk
p
<
0.05).
Besides,
two
Butyricicoccus
Ruminiclostridium
6)
have
potentially
inhibitive
effects
No
significant
estimation
heterogeneity
or
pleiotropy
detected.
Conclusion
Our
demonstrates
provides
guidance
clinical
intervention
BMC Medicine,
Journal Year:
2023,
Volume and Issue:
21(1)
Published: July 19, 2023
Abstract
Background
Previous
studies
have
found
a
correlation
between
coronavirus
disease
2019
(COVID-19)
and
changes
in
brain
structure
cognitive
function,
but
it
remains
unclear
whether
COVID-19
causes
structural
which
specific
regions
are
affected.
Herein,
we
conducted
Mendelian
randomization
(MR)
study
to
investigate
this
causal
relationship
identify
vulnerable
COVID-19.
Methods
Genome-wide
association
(GWAS)
data
for
phenotypes
(28,900
cases
3,251,161
controls)
were
selected
as
exposures,
GWAS
traits
(cortical
thickness
surface
area
from
51,665
participants
volume
of
subcortical
structures
30,717
participants)
outcomes.
Inverse-variance
weighted
method
was
used
the
main
estimate
method.
The
median,
MR-Egger,
MR-PRESSO
global
test,
Cochran’s
Q
statistic
detect
heterogeneity
pleiotropy.
Results
genetically
predicted
infection
phenotype
nominally
associated
with
reduced
cortical
caudal
middle
frontal
gyrus
(
β
=
−
0.0044,
p
0.0412).
hospitalized
lateral
orbitofrontal
0.0049,
0.0328)
rostral
0.0022,
0.0032)
well
temporal
10.8855,
0.0266).
These
relationships
also
identified
severe
phenotype.
Additionally,
cuneus
0.0024,
0.0168);
pericalcarine
2.6628,
0.0492),
superior
parietal
5.6310,
0.0408),
parahippocampal
0.1473,
0.0297);
hippocampus
15.9130,
0.0024).
Conclusions
Our
indicates
suggestively
significant
genetic
predisposition
atrophy
functional
human
brain.
Patients
impairment
should
be
actively
managed
alleviate
neurocognitive
symptoms
minimize
long-term
effects.
Journal of Translational Medicine,
Journal Year:
2024,
Volume and Issue:
22(1)
Published: Jan. 20, 2024
Abstract
Background
Observational
studies
have
suggested
an
association
between
multiple
sclerosis
(MS)
and
cortical
structure,
but
the
results
been
inconsistent.
Objective
We
used
two-sample
Mendelian
randomization
(MR)
to
assess
causal
relationship
MS
structure.
Methods
data
as
exposure
trait,
including
14,498
cases
24,091
controls,
were
obtained
from
International
Multiple
Sclerosis
Genetics
Consortium.
Genome-wide
study
(GWAS)
for
surface
area
(SAw/nw)
thickness
(THw/nw)
in
51,665
individuals
of
European
ancestry
ENIGMA
The
inverse-variance
weighted
(IVW)
method
was
primary
analysis
MR.
Sensitivity
analyses
conducted
evaluate
heterogeneity
pleiotropy.
Enrichment
performed
on
MR
filtered
by
sensitivity
analysis.
Results
After
IVW
filtering,
only
six
surviving
provided
suggestive
evidence
supporting
a
lingual
SAw
(
p
=
.0342,
beta
(se)
5.7127
(2.6969)),
parahippocampal
.0224,
1.5577
(0.6822)),
rostral
middle
frontal
.0154,
−
9.0301
(3.7281)),
cuneus
THw
.0418,
0.0020
(0.0010)),
lateral
orbitofrontal
.0281,
0.0025
THnw
.0417,
0.0029
(0.0014)).
that
leukocyte
cell-related
pathways,
JAK-STAT
signaling
pathway,
NF-kappa
B
cytokine-cytokine
receptor
interaction,
prolactin
pathway
may
be
involved
effect
morphology.
Conclusion
Our
provide
suggests
pathways
mediating
brain
morphology
abnormalities
patients
are
mainly
related
immune
inflammation-driven
pathways.
BMC Medical Genomics,
Journal Year:
2024,
Volume and Issue:
17(1)
Published: Jan. 25, 2024
Abstract
Background
Dysbacteriosis
of
intestinal
tract
may
cause
systemic
inflammation,
making
distant
anatomical
locations
more
susceptible
to
illness.
Recent
research
has
demonstrated
that
the
microbiome
can
affect
both
prostatitis
and
inflammation
prostate
is
linked
cancer.
It
still
unclear,
though,
whether
this
relationship
indicates
causation.
We
conducted
a
Mendelian
randomization
investigation
on
two
samples
fully
uncover
gut
microbiota’s
potential
genetic
causal
role
in
prostatitis.
Method
Prostatitis
(1859
cases
72,799
controls)
was
utilized
as
outcome,
while
SNPs
highly
with
196
microbial
taxa
(18
340
people)
were
chosen
instrumental
factors.
Random
effects,
inverse
variance
weighting,
weighted
medians,
MR-Egger
used
analyze
effects.
The
Cochran’s
Q
test,
funnel
plot,
leave-one-out
analysis,
intercept
test
all
sensitivity
analysis.
Results
A
effect
lowering
incidence
anticipated
for
five
microorganisms
(
Methanobacteria
,
Methanobacteriaceae
Erysipelatoclostridium
Parasutterella
Slackia
;
P
<
0.05).
Four
bacteria,
including
Faecalibacterium
LachnospiraceaeUCG004
Sutterella
Gastranaerophilales
are
predicted
play
increasing
risk
There
no
discernible
estimates
pleiotropy
or
heterogeneity.
Conclusion
Our
established
links
between
nine
prostatitis,
which
offer
fresh
perspectives
theoretical
framework
future
prevention
management
Aging Clinical and Experimental Research,
Journal Year:
2025,
Volume and Issue:
37(1)
Published: Feb. 27, 2025
Abstract
Background
Patients
with
sarcopenia
often
experience
cognitive
decline,
affecting
cortical
structures,
but
the
causal
link
remains
unclear.
We
used
bidirectional
Mendelian
randomization
(MR)
to
explore
relationship
between
sarcopenia-related
traits
and
structure.
Methods
selected
genetic
variables
from
genome-wide
association
study
data.
Three
different
MR
methods
were
used:
inverse-variance
weighted
analysis,
MR-Egger
regression,
median
test.
For
significant
estimates,
we
further
conducted
Cochran’s
Q
test,
intercept
leave-one-out
analyses,
MR-PRESSO
assess
heterogeneity.
Results
In
forward
appendicular
lean
mass
(ALM)
decreased
thickness
(TH)
of
lateral
occipital
gyrus
increased
TH
pars
opercularis
(β
=
-0.0079
mm,
95%
CI:
-0.0117
mm
-0.0041
P
<
0.0001;
β
0.0080
0.0042
0.0117
0.0001).
reverse
a
negative
correlation
was
found
bankssts
ALM,
while
positive
correlations
observed
frontal
pole,
rostral
anterior
cingulate,
temporal
ALM.
The
pole
positively
correlated
right
hand
grip
strength
(HGS-R)
0.1596
0.1349
0.1843
0.0001),
triangularis
left-hand
(HGS-L)
0.3251
0.2339
0.4163
Conclusions
Sarcopenia-related
structure
have
effects,
supporting
muscle-brain
axis
theory.
This
links
neurocognitive
diseases
provides
new
strategies
for
prevention
intervention
both
decline.
Frontiers in Nutrition,
Journal Year:
2022,
Volume and Issue:
9
Published: March 29, 2022
Background
Causal
research
concerning
the
consumption
of
tea
and
risk
chronic
kidney
disease
(CKD)
is
limited.
This
study
identified
potential
causal
effects
intake
on
CKD,
estimated
glomerular
filtration
rate
(eGFR),
albuminuria.
Methods
Genome-wide
association
studies
(GWASs)
from
UK
Biobank
were
able
to
identify
single-nucleotide
polymorphisms
(SNPs)
associated
with
an
extra
cup
each
day.
The
summary
statistics
for
function
CKDGen
consortium
include
11,765
participants
(12,385
cases
CKD)
54,116
urinary
albumin-to-creatinine
ratio
who
mostly
European
descent.
A
two-sample
Mendelian
randomization
(MR)
analysis
was
performed
test
relationship
between
selected
SNPs
CKD.
Results
total
2,672
(
p
<
5
×
10
–8
)
found,
45
which
independent
usable
in
CKDGen.
Drinking
more
cups
per
day
indicates
a
protective
effect
CKD
G3-G5
[odds
(OR)
=
0.803;
0.004]
increases
eGFR
(β
0.019
log
ml/min/1.73
m
2
day;
2.21
–5
).
Excluding
two
responsible
directional
heterogeneity
(Cochran
Q
0.02),
high
also
negatively
correlated
lower
albuminuria
(OR
0.758;
0.002).
Conclusion
From
perspective
genes,
relationships
exist
daily
reduced
increased
eGFR.
European Journal of Clinical Investigation,
Journal Year:
2022,
Volume and Issue:
53(3)
Published: Oct. 19, 2022
Extensive
observational
evidence
put
forward
the
association
between
psychiatric
disorders
and
type
2
diabetes
mellitus
(T2DM).
However,
causal
relationships
these
two
diseases
required
further
research.
Thus,
we
evaluated
bidirection
casual
effect
five
T2DM
using
two-sample
mendelian
randomization
(MR).By
selecting
single
nucleotide
polymorphisms
associated
with
(attention-deficit
hyperactivity
disorder
(ADHD),
major
depressive
(MDD),
schizophrenia,
anxiety
panic
disorder),
a
bidirectional
MR
was
applied
to
evaluate
causality
diseases.
The
inverse-variance
weighted
(IVW)
method
used
as
primary
analysing
approach
for
estimating
possible
effects.
MR-Egger
median
were
also
conducted
verify
results.
funnel
plot,
Cochran's
Q
test
intercept
sensitivity
analyses.
In
addition,
potential
mediators
investigated
by
risk
factor
analyses.Genetic
susceptibilities
of
ADHD
MDD
would
increase
(ADHD:
OR
=
1.14,
95%CI
1.08-1.20;
p=5.7×10-6
;
MDD:
1.22,
1.09-1.36;
p=0.0004
).
genetic
predisposition
(OR
1.09,
1.04-1.14;
p
0.0004).
Several
factors
implicated
in
above
associations,
including
smoking,
high
body
mass
index,
waist-to-hip
ratio
elevated
serum
triglycerides.Our
studies
indicated
on
increasing
T2DM,
which
potentially
mediated
smoking
obesity-related
phenotypes.
Meanwhile,
found
ADHD.
prevention
strategies
should
include
mental
health
vice
versa.