Molecular Neurobiology,
Journal Year:
2023,
Volume and Issue:
61(7), P. 4663 - 4676
Published: Dec. 19, 2023
Abstract
Perioperative
neurocognitive
disorders
(PNDs)
are
now
considered
the
most
common
neurological
complication
in
older
adult
patients
undergoing
surgical
procedures.
A
significant
increase
exists
incidence
of
post-operative
disability
and
mortality
with
PNDs.
However,
no
specific
treatment
is
still
available
for
Recent
studies
have
shown
that
exercise
may
improve
cognitive
dysfunction-related
disorders,
including
Neuroinflammation
a
key
mechanism
underlying
exercise-induced
neuroprotection
PNDs;
others
include
regulation
gut
microbiota
mitochondrial
synaptic
function.
Maintaining
optimal
skeletal
muscle
mass
through
preoperative
important
to
prevent
occurrence
This
review
summarizes
current
clinical
preclinical
evidence
proposes
potential
molecular
mechanisms
by
which
perioperative
improves
PNDs,
providing
new
direction
exploring
exercise-mediated
neuroprotective
effects
on
In
addition,
it
intends
provide
strategies
prevention
Signa Vitae,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
Postoperative
neurocognitive
impairments
following
surgery
are
a
growing
concern,
especially
in
the
elderly
population,
since
it
is
associated
with
significantly
increased
risk
of
morbi-mortality
postoperative
period.
Among
them,
delirium
or
early
cognitive
decline
further
prolonged
dysfunction
and
may
quicken
long-term
impairment
(POCD).
The
current
knowledge
regarding
preventive
strategies
for
not
focused
anymore
only
on
pharmacological
behavioral
management
period,
but
also
supports
preoperative
training
programs.
Since
evaluation
proactive
interventions
to
optimize
surgical
patient
outcomes
rather
impossible
emergency
setting,
what
appropriate
that
can
be
implemented
day-to-day
practice?
In
this
review,
we
try
highlight
most
recent
experimental
clinical
strategies,
outline
relevant
recommendations
clinicial
practicioners
based
available
data.
Medicine,
Journal Year:
2024,
Volume and Issue:
103(36), P. e39337 - e39337
Published: Sept. 6, 2024
Background:
Emergence
delirium
(ED)
is
a
common
occurrence
in
pediatric
postanesthesia
events,
leading
to
negative
outcomes.
Dexmedetomidine
(DEX),
as
an
anesthesia
adjuvant,
has
shown
promise
preventing
ED
adult
surgeries,
and
it
been
increasingly
used
surgical
settings.
However,
its
effectiveness
other
such
MRI
examinations
ambulatory
surgery
centers,
remains
unclear.
This
meta-analysis
aims
assess
the
safety
efficacy
of
DEX
various
events
beyond
surgery.
Methods:
Prospective
randomized
controlled
trials
were
searched
Pubmed,
Web
Science,
EBSCO
until
October
13,
2023.
Comparisons
made
between
sedatives
or
analgesics
different
(including
operations,
examination
MRI,
day
surgery,
invasive
action).
Subgroup
analyses
conducted
based
on
drug
delivery
methods,
medication
timing,
dosages,
use
analgesics,
event
types,
recovery
time.
Results:
A
total
33
involving
3395
patients
included.
significantly
reduced
incidence
(odds
ratios
[OR]
=
0.23,
95%
confidence
interval
[CI]:
0.19–0.27,
I
2
37%,
P
<
.00001).
Intranasal
was
most
effective
(OR
0.18,
CI:
0.10–0.32,
.00001,
0%).
also
showed
benefits
mask
insertion
0.30,
0.14–0.26,
.001,
Conclusion:
demonstrates
superior
compared
analgesics.
Its
recommended
settings
for
managing
ED.
Neuroscience Letters,
Journal Year:
2022,
Volume and Issue:
788, P. 136842 - 136842
Published: Aug. 19, 2022
Intracerebral
hemorrhage
(ICH)
is
a
devastating
condition
with
significant
morbidity
and
mortality
for
which
few
effective
treatments
are
clinically
available.
After
ICH,
iron
overload
within
the
perihaematomal
region
can
induce
lethal
reactive
oxygen
species
(ROS)
production
lipid
peroxidation,
contribute
to
secondary
brain
injury.
An
iron-dependent
form
of
non-apoptotic
cell
death
known
as
ferroptosis
was
recently
identified.
Ferroptosis
plays
an
important
role
in
ICH
pathology.
It
characterized
by
accumulation
iron-induced
ROS,
leads
intracellular
oxidative
stress.
Dexmedetomidine
(DEX),
α2-adrenergic
agonist,
widely
used
anesthesia,
pain
control,
intensive
care
unit
sedation.
DEX
has
numerous
beneficial
activities,
including
anti-inflammatory,
anti-oxidative,
anti-cell
activities.
Here,
we
established
mouse
model
using
collagenase
VII
evaluated
effect
preventing
ICH-induced
Our
study
showed
that
administering
reduced
damage
induced
after
regulating
metabolism,
amino
acid
metabolism
peroxidation
processes.
Brain Sciences,
Journal Year:
2023,
Volume and Issue:
13(7), P. 1058 - 1058
Published: July 11, 2023
(1)
Background:
Sleep
deprivation
(SD)
triggers
a
range
of
neuroinflammatory
responses.
Dexmedetomidine
can
improve
sleep
deprivation-induced
anxiety
by
reducing
response
but
the
mechanism
is
unclear;
(2)
Methods:
The
model
was
established
using
an
interference
rod
device.
An
open
field
test
and
elevated
plus
maze
were
used
to
detect
emotional
behavior
mice.
Mouse
cortical
tissues
subjected
RNA
sequence
(RNA-seq)
analysis.
Western
blotting
immunofluorescence
expression
p38/p-p38,
MSK1/p-MSK1,
NFκBp65/p-
NFκBp65.
Inflammatory
cytokines
detected
enzyme-linked
immunosorbent
assay
(ELISA);
(3)
Results:
SD
triggered
anxiety-like
behaviors
in
mice
closely
associated
with
inflammatory
responses
MAPK
pathway
(as
demonstrated
transcriptome
analysis).
led
increased
levels
p-p38,
p-MSK1,
p-NFκB.
P38
inhibitor
SB203580
confirm
important
role
p38/MSK1/NFκB
SD-induced
neuroinflammation.
(Dex)
effectively
improves
sleep-deprived
attenuating
oxidative
stress
cerebral
cortex,
mainly
inhibiting
activation
pathway;
(4)
Conclusions:
Dex
inhibits
pathway,
thus
cortex
Molecular Neurobiology,
Journal Year:
2023,
Volume and Issue:
61(7), P. 4663 - 4676
Published: Dec. 19, 2023
Abstract
Perioperative
neurocognitive
disorders
(PNDs)
are
now
considered
the
most
common
neurological
complication
in
older
adult
patients
undergoing
surgical
procedures.
A
significant
increase
exists
incidence
of
post-operative
disability
and
mortality
with
PNDs.
However,
no
specific
treatment
is
still
available
for
Recent
studies
have
shown
that
exercise
may
improve
cognitive
dysfunction-related
disorders,
including
Neuroinflammation
a
key
mechanism
underlying
exercise-induced
neuroprotection
PNDs;
others
include
regulation
gut
microbiota
mitochondrial
synaptic
function.
Maintaining
optimal
skeletal
muscle
mass
through
preoperative
important
to
prevent
occurrence
This
review
summarizes
current
clinical
preclinical
evidence
proposes
potential
molecular
mechanisms
by
which
perioperative
improves
PNDs,
providing
new
direction
exploring
exercise-mediated
neuroprotective
effects
on
In
addition,
it
intends
provide
strategies
prevention