Metabolic
dysregulation
represents
one
of
the
major
driving
forces
in
aging.
Although
multiple
genetic
and
pharmacological
manipulations
are
known
to
extend
longevity
model
organisms,
aging
is
a
complex
trait,
targeting
one’s
own
genes
may
be
insufficient
prevent
age-dependent
deterioration.
An
alternative
strategy
could
use
enzymes
from
other
species
reverse
age-associated
metabolic
changes.
In
this
review,
we
discuss
set
lower
organisms
that
have
been
shown
affect
various
parameters
linked
age-related
processes.
These
include
modulators
steady-state
levels
amino
acids
(METase,
ASNase,
ADI),
NADPH/NADP
+
and/or
reduced
form
coenzyme
Q
(CoQH
2
)/CoQ
redox
potentials
(NDI1,
AOX,
Lb
NOX,
TPNOX,
Ec
STH,
RquA,
LOXCAT,
Grubraw,
ScURA),
GSH
(StGshF),
mitochondrial
membrane
potential
(mtON
mito-dR),
or
reactive
oxygen
(DAAO
KillerRed-SOD1).
We
propose
leveraging
non-mammalian
an
untapped
resource
can
used
delay
diseases.
Proteoglycan Research,
Год журнала:
2024,
Номер
2(4)
Опубликована: Окт. 1, 2024
Abstract
Hyaluronan
(HA)
is
a
huge
linear
polysaccharide
composed
entirely
of
simple
repeating
disaccharide
that
has
been
preserved
unchanged
since
the
evolution
vertebrates
~520
million
years
ago.
It
present
in
all
mammalian
tissues,
being
synthesised
within
cell
membrane
and
extruded
into
extracellular
space
where
it
dictates
tissue
elasticity,
hydration
permeability.
HA
also
directs
behaviour
via
engagement
with
surface
receptors.
These
properties
allow
to
mediate
diverse
functions
wide
range
physiological
pathological
processes,
including
development,
reproduction
inflammation.
There
growing
evidence
way
which
biopolymer
differentially
organised,
through
its
interaction
repertoire
HA‐binding
proteins
(HABPs),
key
diversity
biological
functions.
This
review
summarises
current
knowledge
HA‐protein
interactions
how
their
may
lead
formation
HA/protein
complexes
distinct
molecular
architectures
turn
underpin
different
physical
receptor‐mediated
effects.
Potentially
controversial
areas
such
pro‐inflammatory
effects
low
weight
fragments
short
peptides
modulate
function
are
considered
from
perspective.
Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 9, 2025
Abstract
Sigal
peptides
have
garnered
remarkable
efficacy
in
rejuvenating
photoaged
skin
and
delaying
senescence.
Nevertheless,
their
low
solubility
poor
permeability
bring
about
a
formidable
challenge
transdermal
delivery.
To
address
this
challenge,
bioactive
ionic
liquids
(ILs)
synthesized
from
natural
glycyrrhizic
acid
(GA)
oxymatrine
(OMT)
with
eminent
biocompatibility
is
first
prepared.
The
components
ratios
inherent
forming
mechanisms
of
GA‐OMT
(GAO)
are
optimized
by
molecular
dynamics
simulations
density
functional
theory
calculations.
Remarkably,
GAO
can
significantly
improve
the
sparingly
soluble
properties
palmitoyl
pentapeptide‐4
(PAL‐4),
model
peptide
drug.
Subsequently,
self‐assembled
micelles
loading
PAL‐4
(GAO/PAL‐4‐SM)
fabricated
without
additional
auxiliary
materials.
permeation
subcutaneous
retention
promoted
10wt.%
GAO‐SM.
Moreover,
ILs
facilitated
enhancing
its
miscibility
interaction
stratum
corneum
(SC),
offering
pulling
effect
micellar
structures
for
PAL‐4,
as
elucidated
computational
simulations.
In
cellular
animal
photoaging
experiments,
GAO/PAL‐4‐SM
possessed
capabilities
boosting
collagen
hyaluronic
regeneration,
mitigating
inflammation
apoptosis,
accelerating
macrophage
M2
polarization,
thereby
lessening
wrinkles
leveraging
elasticity.
Collectively,
research
innovatively
designed
an
nano‐micellar
delivery
system
to
enhance
anti‐photoaging
signal
peptides.
Frontiers in Immunology,
Год журнала:
2024,
Номер
15
Опубликована: Март 27, 2024
Background
Differences
in
border
zone
contribute
to
different
outcomes
post-infarction,
such
as
left
ventricular
aneurysm
(LVA)
and
myocardial
infarction
(MI).
LVA
usually
forms
within
24
h
of
the
onset
MI
may
cause
heart
rupture;
however,
surgery
is
best
performed
3
months
after
MI.
Few
studies
have
investigated
model,
differences
zones
between
MI,
mechanism
zone.
Methods
The
LVA,
SHAM
mouse
models
were
used.
Echocardiography,
Masson’s
trichrome
staining,
immunofluorescence
staining
performed,
RNA
sequencing
was
conducted.
adipocyte-conditioned
medium-treated
hypoxic
macrophage
cell
line
employed
determine
effects
hub
gene,
adiponectin
(
ADPN
),
on
macrophages.
Quantitative
polymerase
chain
reaction
(qPCR),
Western
blot
analysis,
transmission
electron
microscopy,
chromatin
immunoprecipitation
(ChIP)
assays
conducted
elucidate
Human
subepicardial
adipose
tissue
blood
samples
collected
validate
ADPN.
Results
A
novel,
simple,
consistent,
low-cost
model
constructed.
caused
a
greater
reduction
contractile
functions
than
owing
reduced
wall
thickness
edema
impeded
cardiac
promoted
lymphangiogenesis
by
increasing
infiltration
post-infarction.
Adipocyte-derived
M2
polarization
sustained
mitochondrial
quality
via
ADPN/AdipoR2/HMGB1
axis.
Mechanistically,
HMGB1
inflammation
decreased
interleukin-6
(IL6)
secretion.
secretion
IL6
increased
expression
STAT3
co-transcription
factor,
YAP,
adipocytes.
Based
ChIP
Dual-Glo
luciferase
experiments,
transcription
binding
its
promoter
In
vivo
,
injury
These
phenotypes
rescued
depletion
or
knockdown
Supplying
adipocytes
overexpressing
collagen
disposition,
lymphangiogenesis,
impaired
injury.
However,
these
Overall,
IL6/ADPN/HMGB1
axis
validated
using
human
samples.
This
could
serve
an
independent
factor
overweight
patients
who
need
coronary
artery
bypass
grafting
(CABG)
treatment.
Conclusion
loop
macrophages
contributes
clinical
Thus,
targeting
be
novel
therapeutic
approach
for
lymphatic
regulation
senescence
European Journal of Inflammation,
Год журнала:
2024,
Номер
22
Опубликована: Янв. 1, 2024
To
investigate
the
ability
of
35
kDa
low-molecular-weight
hyaluronan
fragment
(HA35)
to
relieve
neuropathic
and
inflammatory
pain,
including
postherpetic
neuralgia
shoulder,
neck,
back
temporomandibular
pain.
Ten
patients
with
26
or
pain
were
studied
assessed.
The
was
prepared
by
mixing
hyaluronidase
100
mg
high-molecular-weight
HA
at
room
temperature
for
20
mins.
This
mixture
locally
injected
once
point
where
nerve
trunk
innervated
point.
Patients
scored
their
comfort
on
numerical
rating
scale
(NPRS)
General
Comfort
Questionnaire
(GCQ).
After
treatment,
NPRS
scores
GCQ
improved.
had
significantly
lower
30
min
180
after
injection,
especially
(
p
<
.001).
treatment
24
h
greater
than
that
before
.01).
No
adverse
reactions
occurred.
effectively
relieved
neuralgia-induced
Clinical
Trial
Registration:
NCT05809700
https://www.clinicaltrials.gov
.