International Journal of Polymeric Materials,
Год журнала:
2024,
Номер
unknown, С. 1 - 33
Опубликована: Дек. 16, 2024
This
review
delves
into
the
efficacy
of
electrospun
nanofibers
as
structures
capable
neutralizing
Reactive
Oxygen
Species
(ROS),
thereby
aiding
in
acceleration
wound
repair.
ROS
occupy
a
dual
position
cellular
dynamics,
being
indispensable
for
intracellular
communication,
yet
they
potentially
exacerbate
oxidative
stress
which
can
stall
healing
trajectory.
The
method
electrospinning
synthesizes
distinguished
by
their
expansive
surface
area
relative
to
volume
and
notable
porosity,
rendering
them
optimally
suited
medical
endeavors,
particularly
frameworks
that
bolster
recuperation.
analysis
elucidates
diverse
roles
these
play,
from
enhancing
clot
formation
combating
microbial
invasion
mitigating
inflammation,
fostering
proliferation,
facilitating
angiogenesis—each
pivotal
component
effective
mending
wounds.
Abstract
The
transient
receptor
potential
(TRP)
channel
is
a
key
sensor
for
diverse
cellular
stimuli,
regulating
the
excitability
of
primary
nociceptive
neurons.
Sensitization
TRP
can
heighten
pain
sensitivity
to
innocuous
or
mildly
noxious
stimuli.
Here,
reversible
modulation
channels
achieved
by
controlling
both
light‐induced
photoelectrochemical
reaction
induce
neuronal
depolarization,
and
antioxidants
protection.
It
based
on
hybrid
nanosystem,
CZPN,
created
coating
CeO
2
nanocrystals
with
metalloporphyrin
ZnTPyP.
Light
irradiation
triggers
an
electrochemical
response,
efficient
electron
injection
from
ZnTPyP
,
converting
Ce
4+
into
3+
as
antioxidants.
Meanwhile,
charge
migrates
surrounding
O
molecules
hole‐injected
*
giving
rise
reactive
oxygen
species
(ROS).
This
change
in
redox
environment
sensitizes
channels,
eliciting
action
potentials
rat
neurons,
partially
blocked
pretreatment
capsazepine.
resulting
2‐x
high
/Ce
ratio,
scavenge
excessive
ROS
prevent
oxidative
damage.
behaviors
mice
pre‐injected
CZPN
are
further
confirmed.
work
suggests
safe,
effective,
universal
approach
processes
research
peripheral
nervous
system.
Molecules,
Год журнала:
2025,
Номер
30(5), С. 1038 - 1038
Опубликована: Фев. 24, 2025
Global
disparities
in
cancer
prevention,
detection,
and
treatment
demand
a
unified
international
effort
to
reduce
the
disease's
burden
improve
outcomes.
Despite
advances
chemotherapy
radiotherapy,
many
tumors
remain
resistant
these
treatments.
Gold
nanoparticles
(AuNPs)
have
shown
promise
as
radiosensitizers,
enhancing
effectiveness
of
low-energy
X-rays
by
emitting
Auger
electrons
that
cause
localized
cellular
damage.
In
this
study,
spherical
AuNPs
5
nm
10
were
characterized
tested
on
various
cell
lines,
including
malignant
breast
cells
(MCF-7),
non-malignant
(CHO-K1
MCF-10A),
human
lymphocytes.
Cells
treated
with
irradiated
attenuated
6
megavoltage
(MV)
or
p(66)/Be
neutron
radiation
assess
DNA
double-strand
break
(DSB)
damage,
viability,
cycle
progression.
The
combination
induced
higher
levels
γ-H2AX
foci
micronucleus
formation
compared
treatments
X-ray
alone.
alone
reduced
kinetics
increased
accumulation
G2/M
phase,
suggesting
block
For
proliferation,
significant
effects
only
observed
at
concentration
50
μg/mL
AuNPs,
while
lower
concentrations
had
no
inhibitory
effect.
Further
research
is
needed
quantify
internalized
correlate
their
unravel
biological
mechanisms
radioenhancement.
Processes,
Год журнала:
2025,
Номер
13(4), С. 935 - 935
Опубликована: Март 21, 2025
In
recent
years,
exopolysaccharides
(EPSs)
have
emerged
as
significant
substances
due
to
their
impressive
biological
properties.
This
research
intends
analyze
the
EPS
extracted
from
probiotic
bacteria
and
assess
its
various
activities.
The
promising
isolated
human
breast
milk
was
identified
Lactiplantibacillus
plantarum
B7
by
16S
rRNA
sequencing.
yield
of
this
strain
quantified
5.2
g/L.
crude
extract
(EPSc)
subjected
purification
chromatography
on
DEAE-cellulose
Sephadex
G-100
columns,
giving
two
main
fractions
named
EPSF1
EPSF2.
Structural
features
were
investigated
HPLC,
FTIR,
GPC
1HNMR.
Chromatographic
analysis
indicated
that
EPSF2
composed
mannuronic
acid,
mannose
glucose
in
a
molar
ratio
2.6:2.15:1.00
3.92:2.65:1.00
with
molecular
weight
4.36
×
104
5.27
105,
respectively.
Multiple
vitro
assays
EPSc,
showed
potent
radical
scavenging
activity
DPPH,
ABTS,
hydroxyl
(HRS)
superoxide
activity.
Also,
they
reducing
power
0.69,
0.61
0.58,
respectively,
at
1000
μg/mL.
displayed
negligible
toxicity
against
WI-38
normal
lung
cells
but
had
cytotoxic
effects
colon
cancer
(Caco-2),
(IC50
=
122.13
±
0.01,
72.5
0.12
81.6
0.1
μg/mL),
HepG2
liver
112.5
60.3
62.0
0.03
μg/mL)
prostate
(PC3)
109.6
0.03,
65.7
0.01
70.3
0.04
μg/mL).
While
anti-inflammatory
hemolysis
inhibition
79.3
0.05,
93.5
0.05
87.9
0.03%
500
µg/mL,
results
indicate
antioxidant,
antitumor
Periodontitis
is
a
prolonged
inflammatory
disease
caused
by
bacterial
infection.
Oxidative
stress
induced
inflammation
leads
to
excessive
production
of
reactive
oxygen
species
(ROS)
and
difficulties
in
bone
tissue
regeneration.
ROS-scavenging
agents
regulate
the
periodontal
microenvironment,
which
great
significance
treatment
periodontitis.
In
this
study,
zinc-cobalt
bimetallic
organic
framework
(Zn/Co-MOF)
constructed
alleviate
local
resorption
periodontitis
cascading
antioxidant
activity.
vitro
experimental
results
show
that
Zn/Co-MOF
not
only
provides
effective
cellular
protection
against
ROS
attack
human
marrow
mesenchymal
stem
cells
osteoblast
precursor
(MC3T3-E1),
but
also
promotes
osteogenic
differentiation.
vivo
experiments
rat
models
confirm
Zn/Co-MOFs
can
reduce
inflammation,
osteoclasts,
promote
recovery
alveolar
height
defects,
beneficial
for
RNA
sequencing
regeneration
mainly
through
activated
Wnt
pathways,
accelerate
Overall,
exhibits
capacity
regeneration,
making
it
promising
strategy
Journal of Orthopaedic Surgery and Research,
Год журнала:
2025,
Номер
20(1)
Опубликована: Апрель 11, 2025
This
study
aimed
to
investigate
the
regulatory
effect
of
linc00963
on
postmenopausal
osteoporosis
and
potential
molecular
mechanisms.
Taking
MC3T3-E1
cells
as
object,
a
cell
cycle
assay
was
used
evaluate
proliferation.
mRNA
levels
Runx2,
OCN,
collagenia-1,
OPG,
RANKL
RANK
were
detected.
Dual
luciferase
reporter
verified
targeting
relationship
between
miR-506-3p.
A
rat
model
established
after
ovariectomy
in
32
Sprague-Dawley
rats.
The
rats
divided
into
sham
group,
OVX
overexpression
blank
plasmid
group.
bone
mineral
density
(BMD)
femur
measured
by
X-ray
densitometer.
Serum
expression
detected
RT-qPCR.
protein
ALP,
BGP
serum
ELISA.
Cell
studies
have
shown
that
alleviates
down-regulating
Animal
showed
compared
with
level,
BMD,
Ca,
P,
LEP,
SOD,
OPG
group
significantly
decreased,
while
body
weight,
BGP,
IL-6,
IL-13,
RANKL,
increased.
Compared
use
can
improve
above
indexes
play
corresponding
therapeutic
menopausal
Linc00963
is
involved
pathogenesis
up-regulating
miR-506-3p
activating
OPG/RANKL/RANK
pathway.
expected
be
target
for
osteoporosis.
Osteoarthritis
(OA)
is
the
most
prevalent
degenerative
joint
disorder,
characterized
by
progressive
degradation,
pain,
and
diminished
mobility,
all
of
which
collectively
impair
patients'
quality
life
escalate
healthcare
expenditures.
Current
treatment
options
are
often
inadequate
due
to
limited
efficacy,
adverse
side
effects,
temporary
symptom
relief,
underscoring
urgent
need
for
more
effective
therapeutic
strategies.
Recent
advancements
in
nanomaterials
nanomedicines
offer
promising
solutions
improving
drug
bioavailability,
reducing
effects
providing
targeted
benefits.
This
review
critically
examines
pathogenesis
OA,
highlights
limitations
existing
treatments,
explores
latest
innovations
intelligent
design
OA
therapy,
with
an
emphasis
on
their
engineered
properties,
mechanisms,
translational
potential
clinical
application.
By
compiling
recent
findings,
this
work
aims
inspire
further
exploration
innovation
nanomedicine,
ultimately
advancing
development
personalized
therapies.