Pharmaceuticals,
Journal Year:
2022,
Volume and Issue:
15(8), P. 912 - 912
Published: July 23, 2022
Aging
results
from
the
progressive
dysregulation
of
several
molecular
pathways
and
mTOR
AMPK
signaling
have
been
suggested
to
play
a
role
in
complex
changes
key
biological
networks
involved
cellular
senescence.
Moreover,
multiple
factors,
including
poor
nutritional
balance,
drive
immunosenescence
progression,
one
meaningful
aspects
aging.
Unsurprisingly,
nutraceutical
pharmacological
interventions
could
help
maintain
an
optimal
response
by
providing
essential
bioactive
micronutrients
required
for
development,
maintenance,
expression
immune
at
all
stages
life.
In
this
regard,
many
studies
provided
evidence
potential
antiaging
properties
resveratrol,
as
well
rapamycin
metformin.
Indeed,
vitro
vivo
models
demonstrated
these
molecules
number
positive
effects
associated
with
healthy
The
current
review
focuses
on
mechanisms
action
three
important
compounds
their
use
clinical
treatment
Journal of Endocrinology,
Journal Year:
2021,
Volume and Issue:
251(2), P. R11 - R22
Published: Aug. 31, 2021
Metformin
is
a
biguanide
drug
widely
used
as
the
initial
treatment
of
type
2
diabetes.
Despite
its
widespread
use,
precise
mechanisms
action
remain
incompletely
characterised.
Its
effect
in
lowering
blood
glucose
largely
related
to
suppression
gluconeogenesis
liver,
which
probably
accomplished
by
partial
inhibition
mitochondrial
respiratory
chain
complex
1
with
subsequent
increase
intracellular
AMP
levels
and
activation
kinase.
Several
local
systemic
anti-inflammatory
effects
metformin
have
been
described.
Many
these
seem
be
mediated
kinase
downstream
inhibiting
mTOR
NF-κB
pro-inflammatory
signalling
cascades.
However,
there
are
also
studies
describing
actions
independent
action.
In
this
review,
we
summarise
currently
known
on
inflammatory
pathways
clinical
evidence
underpinning
use
potential
drug.
Nutrients,
Journal Year:
2021,
Volume and Issue:
13(12), P. 4550 - 4550
Published: Dec. 18, 2021
The
role
of
the
microbiome
in
human
aging
is
important:
directly
impacts
through
gastrointestinal
system.
However,
microbial
impact
on
skin
has
yet
to
be
fully
understood.
For
example,
cellular
senescence
an
intrinsic
process
that
been
recently
associated
with
imbalance.
With
age,
cells
become
senescent
response
stress
wherein
they
undergo
irreversible
growth
arrest
while
maintaining
high
metabolic
activity.
An
accumulation
linked
various
and
chronic
pathologies
due
overexpression
senescence-associated
secretory
phenotype
(SASP)
comprised
proinflammatory
cytokines,
chemokines,
factors,
proteases,
lipids
extracellular
matrix
components.
In
particular,
dermatological
disorders
may
promoted
by
as
a
common
site
accumulation.
gut
microbiota
influences
disruption
gut-skin
axis
secretion
metabolites.
Metabolomics
can
used
identify
quantify
metabolites
involved
senescence.
Moreover,
novel
anti-senescent
therapeutics
are
warranted
given
poor
safety
profiles
current
pharmaceutical
drugs.
Probiotics
prebiotics
effective
alternatives,
considering
relationship
between
healthy
aging.
further
research
composition
under
status
needed
develop
immunomodulatory
therapies.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Jan. 5, 2023
Abstract
Aging
is
a
complex
process
best
characterized
as
the
chronic
dysregulation
of
cellular
processes
leading
to
deteriorated
tissue
and
organ
function.
While
aging
cannot
currently
be
prevented,
its
impact
on
lifespan
healthspan
in
elderly
can
potentially
minimized
by
interventions
that
aim
return
these
optimal
Recent
studies
have
demonstrated
partial
reprogramming
using
Yamanaka
factors
(or
subset;
OCT4,
SOX2
,
KLF4;
OSK)
reverse
age-related
changes
vitro
vivo
.
However,
it
still
unknown
whether
subset)
are
capable
extending
aged
wild
type
mice.
Here,
we
show
systemically
delivered
AAVs,
encoding
an
inducible
OSK
system,
124-week-old
mice
extends
median
remaining
109%
over
wild-type
controls
enhances
several
health
parameters.
Importantly,
observed
significant
improvement
frailty
scores
indicating
were
able
improve
along
with
increasing
lifespan.
Furthermore,
human
keratinocytes
expressing
exogenous
OSK,
epigenetic
markers
age-reversal,
suggesting
potential
reregulation
genetic
networks
younger,
healthier
state.
Together,
results
may
important
implications
for
development
age-associated
diseases
elderly.
Experimental Biology and Medicine,
Journal Year:
2020,
Volume and Issue:
245(17), P. 1532 - 1542
Published: April 10, 2020
It
has
been
noted
for
quite
some
time
that
DNA
methylation
levels
decline
with
age.
The
significance
of
this
change
remained
unknown
until
it
became
possible
to
measure
status
specific
sites
on
the
DNA.
was
observed
while
does
indeed
decrease
age,
others
increase
or
remain
unchanged.
application
machine
learning
methods
these
quantitative
changes
in
multiple
sites,
allowed
generation
a
highly
accurate
estimator
called
epigenetic
clock.
clock
large
human
epidemiological
data
sets
revealed
discordance
between
predicted
(epigenetic
age)
and
chronological
age
is
associated
many
age-related
pathologies,
particularly
when
former
greater
than
latter.
clearly
captures
degree,
biological
features
accompany
ageing
process.
Despite
ever-increasing
scope
pathologies
are
found
be
accelerated
ageing,
basic
principles
underlie
ticking
elusive.
Here,
we
describe
known
molecular
cellular
attributes
consider
their
properties,
proffer
opinions
as
how
they
may
connected
what
might
underlying
mechanism.
Emerging
from
considerations
inescapable
view
begins
very
early
moments
after
embryonic
stem
cell
stage
continues
un-interrupted
through
entire
life-course.
This
appears
consequence
processes
necessary
development
organism
conception
maintain
thereafter
homeostasis.
Hence,
speed
can,
affected
by
external
factors,
essence
process
itself
an
integral
part
of,
life.
Impact
statement
field
relatively
new,
its
expansion
presents
challenge
keeping
abreast
new
discoveries
implications.
Several
reviews
have
already
addressed
great
number
health
conditions,
life-style,
stressors
rate
ageing.
While
associations
highlight
affirm
ability
capture
biologically
meaningful
do
not
inform
us
about
mechanisms.
In
period
since
clock,
there
rather
limited
experimental
research
aimed
at
uncovering
perspective
derived
available
but
nevertheless
lines
evidence
together
provide
seemingly
coherent
narrative
can
tested.
This,
believe
would
helpful
towards
workings
Cells,
Journal Year:
2021,
Volume and Issue:
10(8), P. 2115 - 2115
Published: Aug. 17, 2021
Endothelial
dysfunction
is
a
key
hallmark
of
hypertension,
which
leading
risk
factor
for
cognitive
decline
in
older
adults
with
or
without
frailty.
Similarly,
hyperglycemia
known
to
impair
endothelial
function
and
predictor
severe
cardiovascular
outcomes,
independent
the
presence
diabetes.
On
these
grounds,
we
designed
study
assess
effects
high-glucose
metformin
on
brain
microvascular
cells
(ECs)
impairment
frail
hypertensive
patients.
We
tested
high-glucose-induced
cell
death,
permeability,
generation
reactive
oxygen
species
vitro,
human
ECs.
To
investigate
consequences
clinical
scenario,
recruited
patients
evaluated
their
Montreal
Cognitive
Assessment
(MoCA)
scores,
comparing
them
according
glycemic
status
(normoglycemic
vs.
hyperglycemic)
use
metformin.
enrolled
376
patients,
209
successfully
completed
study.
observed
significant
correlation
between
MoCA
score
glycemia.
found
that
hyperglycemic
treated
had
significantly
better
than
insulin
(18.32
±
3.9
14.94
3.8;
p
<
0.001).
Our
vitro
assays
confirmed
beneficial
our
knowledge,
this
first
correlating
glycemia
adults,
showing
aggravates
impairment.
The Journals of Gerontology Series A,
Journal Year:
2020,
Volume and Issue:
76(9), P. 1551 - 1560
Published: Aug. 18, 2020
Increases
in
delayed
childbearing
worldwide
have
elicited
the
need
for
a
better
understanding
of
biological
underpinnings
and
implications
age-related
infertility.
In
women
35
years
older
incidences
infertility,
aneuploidy,
birth
defects
dramatically
increase.
These
outcomes
are
result
declines
both
ovarian
reserve
oocyte
quality.
addition
to
waning
reproductive
function,
decline
estrogen
secretion
at
menopause
contributes
multisystem
aging
initiation
frailty.
Both
hormonal
function
limited
by
primordial
follicle
pool,
which
is
established
utero
irreversibly
until
menopause.
Because
dependent
on
an
mechanisms
that
regulate
follicular
growth
maintenance
pool
critical
development
interventions
prolong
life
span.
Multiple
pathways
related
nutrient-sensing
converge
mammalian
ovary
quiescence
or
activation
follicles.
The
PI3K/PTEN/AKT/FOXO3
associated
TSC/mTOR
central
regulation
pool;
however,
aging-associated
systems
such
as
insulin-like
factor-1/growth
hormone
pathway,
transsulfuration/hydrogen
sulfide
may
also
play
role.
Additionally,
sirtuins
aid
maintaining
developmental
metabolic
competence
chromosomal
integrity
oocyte.
Here
we
review
quality,
discuss
geroscience
leverage
our
these
promote
longevity.