Hallmarks of aging: middle-aging hypovascularity, tissue perfusion and nitric oxide perspective on healthspan
Teow J. Phua
No information about this author
Frontiers in Aging,
Journal Year:
2025,
Volume and Issue:
5
Published: Jan. 7, 2025
Aging
is
a
complex
process
marked
by
various
changes
at
both
cellular
and
systemic
levels,
impacting
the
functioning
lifespan
of
organisms.
Over
time,
researchers
have
pinpointed
several
significant
hallmarks
aging
that
lead
to
gradual
deterioration
tissue
function,
regulation,
homeostasis
associated
with
in
humans.
Despite
this,
intricate
interactions
cumulative
effects
these
are
still
mostly
uncharted
territory.
Understanding
this
web
major
challenge
Geroscience,
yet
it
crucial
for
developing
effective
strategies
promote
healthy
aging,
reduce
medical
costs,
ensure
sustainability
health
systems.
Gaining
insights
area
essential
creating
interventions
can
slow
process,
enhance
healthspan,
decrease
likelihood
age-related
diseases.
The
integration
knowledge
from
fields
concerning
middle-aging
nitric
oxide
(NO)-mediated
hypovascularity
hypoxia
hemodynamic
hypothesis
points
systems-based
approach
biological
aging.
Key
evidence
suggests
connection
between
endocrine
system
(specifically
sex
hormones),
endogenous
NO
deficiency,
vascular
system,
which
serves
as
network
microvascular
structures
perfusion
functions
level.
These
processes
also
involve
oxidative
stress
inflammation
triggered
hypoxia.
Language: Английский
NIA Caenorhabditis Intervention Testing Program: identification of robust and reproducible pharmacological interventions that promote longevity across experimentally accessible, genetically diverse populations
GeroScience,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 3, 2025
A
core
facet
of
the
National
Institute
on
Aging's
mission
is
to
identify
pharmacological
interventions
that
can
promote
human
healthy
aging
and
long
life.
As
part
comprehensive
effort
toward
goal,
NIA
Division
Biology
Aging
established
Caenorhabditis
Intervention
Testing
Program
(CITP)
in
2013.
The
C.
elegans
model
(with
an
~
21
day
lifespan)
has
led
field
dissection
longevity
genetics
offers
features
allow
for
relatively
rapid
testing
potential
elaboration
biological
mechanisms
engaged
by
candidate
geroprotectants.
CITP
builds
this
foundation
utilizing
a
genetically
diverse
set
intervention
test
strains
so
"subjects"
represent
genetic
diversity
akin
between
mouse
humans.
Another
distinctive
aspect
dedicated
focus
reproducibility
outcomes
as
labs
at
three
independent
sites
confirm
positive
outcomes.
overall
goal
robust
reproducible
pro-longevity
affecting
cohorts
genus.
strong
Data
Collection
Center
supports
data
collection
dissemination.
Pharmacological
tested
be
nominated
general
public,
directed
in-house
screens,
or
supported
published
scientific
literature.
December
2024,
>
75
compounds
conducted
725,000
animal
assays
over
891
trials.
We
identified
12
confer
≥
20%
increase
median
lifespan
reproducibly
robustly
extend
across
multiple
labs.
Five
these
have
impact
reported
literature
(most
are
not
yet
mouse).
celebration
50th
Anniversary
NIA,
we
review
development
history
accomplishments
program,
comment
translation
promise
advancing
understanding
fundamental
biology
includes
intervention/health
interface.
Language: Английский