Abstract
Biological
age
(BA)
is
important
for
clinical
monitoring
and
preventing
aging-related
disorders
disabilities.
Clinical
and/or
cellular
biomarkers
are
measured
integrated
in
years
using
mathematical
models
to
display
an
individual’s
BA.
To
date,
there
not
yet
a
single
or
set
of
biomarker(s)
technique(s)
that
validated
as
providing
the
BA
reflects
best
real
aging
status
individuals.
Herein,
comprehensive
overview
provided
potential
genetic
variations
proxy
indicators
state
highlighted.
A
estimation
methods
also
well
discussion
their
performances,
advantages,
limitations,
approaches
overcome
these
limitations.
AJP Heart and Circulatory Physiology,
Год журнала:
2020,
Номер
319(3), С. H613 - H631
Опубликована: Авг. 7, 2020
Vascular
smooth
muscle
cells
(VSMCs)
are
the
fundamental
component
of
medial
layer
arteries
and
essential
for
arterial
physiology
pathology.
It
is
becoming
increasingly
clear
that
VSMCs
can
alter
their
metabolism
to
fulfill
bioenergetic
biosynthetic
requirements.
During
vascular
injury,
switch
from
a
quiescent
“contractile”
phenotype
highly
migratory
proliferative
“synthetic”
phenotype.
Recent
studies
have
found
switching
driven
by
metabolic
switch.
Metabolic
pathways,
including
aerobic
glycolysis,
fatty
acid
oxidation,
amino
metabolism,
distinct,
indispensable
roles
in
normal
dysfunctional
vasculature.
also
related
endothelial
cells.
In
present
review,
we
brief
overview
how
it
regulates
progression
several
diseases,
atherosclerosis,
systemic
hypertension,
diabetes,
pulmonary
calcification,
aneurysms,
effect
risk
factors
disease
(aging,
cigarette
smoking,
excessive
alcohol
drinking)
on
VSMC
clarify
role
key
pathological
process.
Nature Communications,
Год журнала:
2021,
Номер
12(1)
Опубликована: Авг. 25, 2021
Abstract
The
electrocardiogram
(ECG)
is
the
most
commonly
used
exam
for
evaluation
of
cardiovascular
diseases.
Here
we
propose
that
age
predicted
by
artificial
intelligence
(AI)
from
raw
ECG
(ECG-age)
can
be
a
measure
health.
A
deep
neural
network
trained
to
predict
patient’s
12-lead
in
CODE
study
cohort
(
n
=
1,558,415
patients).
On
15%
hold-out
split,
patients
with
ECG-age
more
than
8
years
greater
chronological
have
higher
mortality
rate
(hazard
ratio
(HR)
1.79,
p
<
0.001),
whereas
those
smaller,
lower
(HR
0.78,
0.001).
Similar
results
are
obtained
external
cohorts
ELSA-Brasil
14,236)
and
SaMi-Trop
1,631).
Moreover,
even
apparent
normal
ECGs,
gap
remains
statistically
significant
risk
predictor.
These
show
AI-enabled
analysis
add
prognostic
information.
Nature Communications,
Год журнала:
2023,
Номер
14(1)
Опубликована: Июнь 13, 2023
Abstract
Some
people
remain
healthier
throughout
life
than
others
but
the
underlying
reasons
are
poorly
understood.
Here
we
hypothesize
this
advantage
is
attributable
in
part
to
optimal
immune
resilience
(IR),
defined
as
capacity
preserve
and/or
rapidly
restore
functions
that
promote
disease
resistance
(immunocompetence)
and
control
inflammation
infectious
diseases
well
other
causes
of
inflammatory
stress.
We
gauge
IR
levels
with
two
distinct
peripheral
blood
metrics
quantify
balance
between
(i)
CD8
+
CD4
T-cell
(ii)
gene
expression
signatures
tracking
longevity-associated
immunocompetence
mortality-associated
inflammation.
Profiles
~48,500
individuals
collectively
indicate
some
persons
resist
degradation
both
during
aging
when
challenged
varied
stressors.
With
resistance,
preservation
tracked
a
lower
risk
HIV
acquisition,
AIDS
development,
symptomatic
influenza
infection,
recurrent
skin
cancer;
survival
COVID-19
sepsis;
(iii)
longevity.
potentially
reversible
by
decreasing
Overall,
show
trait
observed
across
age
spectrum,
more
common
females,
aligned
specific
immunocompetence-inflammation
linked
favorable
immunity-dependent
health
outcomes.
mechanisms
have
utility
biomarkers
for
measuring
improving
European Heart Journal,
Год журнала:
2023,
Номер
44(29), С. 2698 - 2709
Опубликована: Май 31, 2023
Abstract
Aims
Epigenetic
age
is
emerging
as
a
personalized
and
accurate
predictor
of
biological
age.
The
aim
this
article
to
assess
the
association
subclinical
atherosclerosis
with
accelerated
epigenetic
investigate
underlying
mechanisms
mediating
association.
Methods
results
Whole
blood
methylomics,
transcriptomics,
plasma
proteomics
were
obtained
for
391
participants
Progression
Early
Subclinical
Atherosclerosis
study.
was
calculated
from
methylomics
data
each
participant.
Its
divergence
chronological
termed
acceleration.
burden
estimated
by
multi-territory
2D/3D
vascular
ultrasound
coronary
artery
calcification.
In
healthy
individuals,
presence,
extension,
progression
associated
significant
acceleration
Grim
age,
health
lifespan,
regardless
traditional
cardiovascular
risk
factors.
Individuals
an
characterized
increased
systemic
inflammation
score
low-grade,
chronic
inflammation.
Mediation
analysis
using
transcriptomics
revealed
key
pro-inflammatory
pathways
(IL6,
Inflammasome,
IL10)
genes
(IL1B,
OSM,
TLR5,
CD14)
between
Conclusion
in
middle-aged
asymptomatic
individuals
are
suggests
role
association,
reinforcing
relevance
interventions
on
prevent
disease.
JACC Asia,
Год журнала:
2024,
Номер
4(5), С. 345 - 358
Опубликована: Апрель 8, 2024
Cardiovascular
disease
(CVD)
has
increasing
challenges
for
human
health
with
an
increasingly
aging
population
worldwide,
imposing
a
significant
obstacle
to
the
goal
of
healthy
aging.
Rapid
advancements
in
our
understanding
biological
process
have
shed
new
light
on
some
important
insights
aging-related
diseases.
Although
numerous
reviews
delved
into
mechanisms
through
which
affects
CVD
and
age-related
diseases,
most
these
relied
heavily
research
related
cellular
molecular
processes
often
observed
from
animal
experiments.
Few
provided
that
connect
hypotheses
regarding
patterns
chronological
impacts
populations.
The
purpose
this
review
is
highlight
major
questions
studies
provide
perspectives
context
real-world
multidimensional
information
potential
insights.
Circulation,
Год журнала:
2021,
Номер
143(16), С. 1571 - 1583
Опубликована: Март 2, 2021
There
are
limited
data
on
the
unique
cardiovascular
disease
(CVD),
non-CVD,
and
mortality
risks
of
primary
prevention
individuals
with
very
high
coronary
artery
calcium
(CAC;
≥1000),
especially
compared
rates
observed
in
secondary
populations.
Our
study
population
consisted
6814
ethnically
diverse
45
to
84
years
age
who
were
free
known
CVD
from
MESA
(Multi-Ethnic
Study
Atherosclerosis),
a
prospective,
observational,
community-based
cohort.
Mean
follow-up
time
was
13.6±4.4
years.
Hazard
ratios
CAC
≥1000
both
0
400
999
for
CVD,
outcomes
use
Cox
proportional
hazards
regression
adjusted
age,
sex,
traditional
risk
factors.
Using
sex-adjusted
logarithmic
model,
we
calculated
event
as
function
them
those
placebo
group
stable
patients
FOURIER
clinical
trial
(Further
Cardiovascular
Outcomes
Research
With
PCSK9
Inhibition
Subjects
Elevated
Risk).
Compared
999,
(n=257)
had
greater
mean
number
vessels
(3.4±0.5),
total
area
(586.5±275.2
mm2),
similar
density,
more
extensive
extracoronary
calcification.
After
full
adjustment,
demonstrated
4.71-
(3.63-6.11),
7.57-
(5.50-10.42),
4.86-(3.32-7.11),
1.94-fold
(1.57-2.41)
increased
all
events,
heart
hard
all-cause
mortality,
respectively,
1.65-
(1.25-2.16),
1.66-
(1.22-2.25),
1.51-
(1.03-2.23),
1.34-fold
(1.05-1.71)
999.
increasing
CAC,
hazard
types,
no
apparent
upper
threshold.
associated
1.95-
1.43-fold
(1.12-1.83)
first
non-CVD
respectively.
1000
corresponded
an
annualized
3-point
major
adverse
rate
3.4
per
100
person-years,
that
(3.3)
higher
than
lower-risk
subgroups.
Individuals
(≥1000)
at
substantially
outcomes,
lower
treated
population.
Future
guidelines
should
consider
less
distinct
stratification
algorithm
between
guiding
aggressive
preventive
pharmacotherapy.