Bidirectional causal associations between frailty measures and sleep disturbances: a two-sample Mendelian randomization study
Lu Che,
No information about this author
Han Zang,
No information about this author
Yaodan Bi
No information about this author
et al.
Nature and Science of Sleep,
Journal Year:
2025,
Volume and Issue:
Volume 17, P. 271 - 284
Published: Feb. 1, 2025
Observational
studies
have
demonstrated
a
strong
association
between
sleep
disturbances
and
frailty.
However,
the
causality
remains
inconclusive.
We
aimed
to
investigate
bidirectional
causal
relationships
frailty
measures
employing
two-sample
Mendelian
randomization
(MR)
analysis.
Two-sample
MR
analyses
were
performed
based
on
large-scale
genome-wide
(GWAS)
of
European
population
for
index
(FI)
(N
=
175,226),
Fried
Frailty
Score
(FFS)
386,565),
insomnia
283,595),
duration
445,966)
apnea
523,366).
conducted
estimates
using
inverse
variance-weighted
method
(IVW),
with
sensitivity
MR-Egger,
weighted
median,
mode,
pleiotropy
residual
sum
outlier
(MR-PRESSO)
Cochran's
Q
test
was
assess
heterogeneity.
found
that
genetically
predicted
FI
associated
shorter
apnea.
The
FFS
insomnia,
duration,
In
reverse
direction
analysis,
genetic
liability
short
long
an
increase
in
FI.
Genetic
FFS.
Our
study
provided
evidence
supporting
disturbances.
findings
contribute
prevention
management
Language: Английский
Shared genetic architecture and causal relationship between frailty and schizophrenia
Schizophrenia,
Journal Year:
2025,
Volume and Issue:
11(1)
Published: Feb. 21, 2025
The
complex
relationship
between
frailty
and
schizophrenia
has
yet
to
be
fully
understood.
This
study
aims
clarify
their
by
investigating
genetic
links.
We
hypothesize
a
shared
architecture
bidirectional
causal
the
two
conditions.
Utilizing
summary
data
from
European
genome-wide
association
studies,
we
analyzed
associations
through
global
local
correlations,
genomic
loci,
tissue
enrichments,
functional
genes.
Bidirectional
Mendelian
Randomization
(MR)
was
employed
infer
causality.
Our
findings
show
positive
correlation
(LDSC:
rg
=
0.117,
p
6.686
×
10−7;
HDL:
0.101,
5.63
10−13)
correlations
in
three
regions
(chr9:
94167203-96671698,
2.21
10−6;
chr11:
112459488-114257728,
1.01
10−5;
chr18:
77149991-78017158,
9.57
10−6).
identified
111
loci
associated
with
both
conditions
demonstrated
that
variants
for
share
enrichments
genes
brain.
MR
analysis
suggests
increases
likelihood
of
(OR:
1.763,
95%
CI:
1.259–2.468,
0.001)
vice
versa
(β:
0.012,
0.006–0.018,
<
0.001).
research
supports
presence
basis
causality
schizophrenia.
These
necessitate
further
investigation
diverse
populations
confirm
expand
on
this
understanding.
Language: Английский
Causality of Childhood and Adult Body Mass Index on Sick Sinus Syndrome: A Mendelian Randomization Study
Guanzhen Xu,
No information about this author
Zhuang Liu,
No information about this author
Ping Hou
No information about this author
et al.
Cureus,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 20, 2025
Background
The
relationship
between
body
mass
index
(BMI)
and
the
risk
of
sick
sinus
syndrome
(SSS)
remains
unclear.
Clarifying
impact
BMI
on
SSS
at
different
life
stages
is
essential
for
advancing
precision
medicine
implementing
effective
prevention
strategies
to
reduce
burden
SSS.
Methods
causalities
childhood
adult
with
were
investigated
by
univariate
multivariate
Mendelian
randomization.
Reverse
also
explored
improve
accuracy
causality
findings.
Different
sources
exposure
data
used
replication
analysis,
effects
sample
overlap
using
MRlap.
stability
results
was
further
enhanced
through
meta-analysis.
Results
There
a
positive
correlation
in
both
FinnGen
(odds
ratio
(OR)
=
1.17,
95%
confidence
interval
(CI)
1.01-1.35,
P
0.031)
Integrative
Epidemiology
Unit
(IEU)
open
genome-wide
association
study
(GWAS)
project
(OR
1.18,
CI
1.04-1.34,
0.009)
databases.
remained
valid
after
correction
telomere
length.
no
detected
SSS,
as
determined
independent
studies
Early
Growth
Genetics
(EGG)
2020
1.06,
0.89-1.27,
0.513)
EGG2015
1.02,
0.97-1.09,
0.423).
Meta-analysis
confirmed
reliability
causal
inference.
Conclusions
findings
indicate
that
elevated
adults,
particularly
among
middle-aged
elderly
populations,
increases
developing
In
contrast,
observed
suggesting
influence
susceptibility
may
predominantly
emerge
during
later
stages.
These
highlight
need
targeted
public
health
interventions
address
obesity
modifiable
factor
Language: Английский
Cross-sectional and longitudinal trajectory analyses of sleep duration and frailty among middle-aged and older Chinese adults
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: April 15, 2025
The
relationship
between
sleep
duration
and
frailty
remains
unclear,
particularly
regarding
their
bidirectional
nature
temporal
dynamics
in
the
Chinese
population.
This
study
aimed
to
investigate
cross-sectional
association,
developmental
trajectories,
interactions
middle-aged
older
adults.
Data
were
obtained
from
China
Health
Retirement
Longitudinal
Study
(CHARLS),
which
included
12,942
participants
for
analysis
11,192
longitudinal
trajectory
study.
Latent
growth
models
cross-lagged
panel
utilized
explore
effects
of
on
vice
versa.
Participants'
mean
age
was
59.29
±
9.48
years,
comprising
47.73%
men
52.27%
women.
Cross-sectional
revealed
that,
compared
with
normal
(6-8
h),
both
Q1
(≤
5
h,
OR
=
1.99,
95%
CI
1.64-2.41,
P
<
0.001)
Q4
(>
8
1.50,
1.12-2.02,
0.01)
showed
increased
risks
frailty.
parallel
latent
model
demonstrated
that
initial
level
significantly
negatively
predicted
(β
-
0.34,
0.001),
while
rate
change
0.61,
0.001).
Conversely,
0.36,
0.71,
Cross-lagged
indicated
a
causal
association
frailty,
negative
predictive
effect
being
relatively
stable,
had
short-term
Our
U-shaped
correlation
risk
established
through
investigation.
These
findings
underscore
importance
balanced
patterns
early
screening
conditions
Language: Английский
A cross-sectional study on the relationship between nutrient/food intake and gut microbiota in frailty among older community residents: The Kyotango study
Yuji Naito,
No information about this author
Takeshi Yasuda,
No information about this author
Hiroaki Kitae
No information about this author
et al.
Journal of Clinical Biochemistry and Nutrition,
Journal Year:
2024,
Volume and Issue:
75(2), P. 161 - 173
Published: Jan. 1, 2024
In
strategies
to
extend
a
healthy
lifespan,
early
detection
and
prevention
of
frailty
are
critical.
The
purpose
this
study
was
analyze
the
current
state
clinical
risk
factors
among
community-dwelling
older
conduct
cross-sectional
analysis
individuals,
correlation
between
nutrient
intake,
dietary
diversity,
patterns,
elucidate
frailty-related
gut
microbiota.
included
786
participants
aged
≥65
years
from
Kyotango
Multipurpose
Cohort
Study
who
had
available
data
on
their
Frailty
quantitatively
assessed
by
selecting
32
items
previously
reported
index,
with
those
scoring
≥0.21
classified
as
(
Language: Английский
The relationship between insomnia and multidimensional frailty in community-dwelling older adults: a systematic review
Xiang Qi,
No information about this author
Hui Kong,
No information about this author
Jing Li
No information about this author
et al.
Archives of Gerontology and Geriatrics,
Journal Year:
2024,
Volume and Issue:
129, P. 105661 - 105661
Published: Oct. 18, 2024
Language: Английский
Short sleep duration as a risk factor for cataract in the elderly hypertensive patients in rural China
Dongbin Yang,
No information about this author
Chen Li,
No information about this author
Mingze Ma
No information about this author
et al.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 15, 2024
Abstract
Background
In
an
aging
society,
cataracts
continue
to
significantly
impact
the
quality
of
life
for
increasing
number
elderly
individuals.
As
a
risk
factor
cataract,
hypertension
is
becoming
increasingly
prevalent
among
year
by
year.
The
association
between
sleep
duration
and
cataract
in
hypertensive
demographic
remains
unclear
warrants
further
exploration
aid
strategizing
early
intervention
programs.
Methods
Based
on
China’s
National
Basic
Public
Health
Service
Project
(NBPHSP),
cross-sectional
study
was
conducted
Jia
County,
Henan
Province,
China.
A
total
17473
cases
aged
65
years
over
with
were
included
this
study.
Sleep
obtained
through
questionnaires
information
derived
from
NBPHSP.
Three
logistic
regression
models
used
assess
cataract.
Subgroup
analysis
interaction
tests
performed
address
heterogeneity.
Results
average
self-reported
(6.77
±
1.80)
hours,
prevalence
11.9%.
adjusted
model,
patients
<
6
hours
had
higher
compared
those
7–8
(OR:
1.39,
95%CI:
1.21–1.59).
However,
non-significant
found
long
findings
subgroup
indicated
no
significant
effect.
Conclusions
rural
China,
less
than
are
at
developing
cataracts.
This
finding
underscores
importance
monitoring
patterns
population.
Promoting
adequate
may
be
key
strategy
reducing
improving
overall
hypertension.
Language: Английский
Causal Associations Between Sleep Traits and Low Grip Strength: A Bidirectional Mendelian Randomization Study
Yihong Tai,
No information about this author
H. Wang,
No information about this author
Yinghong Dai
No information about this author
et al.
Nature and Science of Sleep,
Journal Year:
2024,
Volume and Issue:
Volume 16, P. 1699 - 1711
Published: Oct. 1, 2024
Sleep
disorders
and
low
grip
strength
often
co-occur
clinically
are
geriatric
symptoms
that
cause
significant
socioeconomic
burden.
Previous
observational
studies
have
found
an
association
between
sleep
behaviors
strength,
but
the
causal
relationship
remains
unclear.
Language: Английский
Causal Associations Between Sleep Traits and Delirium: A Bidirectional Two-Sample Mendelian Randomization Study
Hao Liu,
No information about this author
Zhi Zhang,
No information about this author
Yuewen He
No information about this author
et al.
Nature and Science of Sleep,
Journal Year:
2024,
Volume and Issue:
Volume 16, P. 2171 - 2181
Published: Dec. 1, 2024
Numerous
studies
have
identified
a
correlation
between
sleep
and
delirium;
however,
the
causal
relationship
remains
ambiguous.
This
bidirectional
two-sample
Mendelian
randomization
(MR)
study
was
conducted
to
examine
possible
relationships
traits
delirium.
Language: Английский
The relationship between sleep duration and frailty: findings from the China Health and Retirement Longitudinal Study
Liyan Huang,
No information about this author
Xiaofang He,
No information about this author
Yao Zuo
No information about this author
et al.
Frontiers in Public Health,
Journal Year:
2024,
Volume and Issue:
12
Published: Dec. 23, 2024
Background
Research
investigating
the
association
between
sleep
duration
and
risk
of
frailty
has
yielded
conflicting
results.
This
study
used
data
from
China
Health
Retirement
Longitudinal
Study
(CHARLS)
to
investigate
frailty.
Methods
Participants
aged
45
above
at
baseline
were
included
in
this
study.
Night
or
total
was
categorized
into
three
groups:
short
(<6
h),
normal
(6–9
long
(≥9
h).
Frailty
measured
by
a
31-item
index
(FI).
Non-frail
participants
followed
up
after
7-year
period.
The
FI
examined
linear
regression
restricted
cubic
spline
(RCS)
analysis.
relationship
evaluated
using
multinomial
logistic
Results
A
10,258/10,250
(night/total
duration)
cross-sectional
4,770/4,768
longitudinal
negative
correlation
identified
both
night
(night:
β
=
−0.83,
p
<
0.001;
total:
−0.66,
0.001)
adjusting
for
age,
sex,
education
level,
marital
status,
residence,
yearly
expenditure,
BMI,
waist
circumference,
smoking
drinking
status
In
study,
remained.
Short
increased
3.59,
3.74,
OR
[95%
confidence
interval
(CI)],
1.06
[1.05,
1.08],
1.07
[1.06,
compared
fully
adjusted
model
result
remains
consistent
Conclusion
increases
Chinese
individuals
above.
Extending
population
may
help
prevent
alleviate
among
middle-aged
older
adult
individuals.
Language: Английский