Impact of hyper- and hypothermia on cellular and whole-body physiology
Journal of Intensive Care,
Год журнала:
2025,
Номер
13(1)
Опубликована: Янв. 13, 2025
The
incidence
of
heat-related
illnesses
and
heatstroke
continues
to
rise
amidst
global
warming.
Hyperthermia
triggers
inflammation,
coagulation,
progressive
multiorgan
dysfunction,
and,
at
levels
above
40
°C,
can
even
lead
cell
death.
Blood
cells,
particularly
granulocytes
platelets,
are
highly
sensitive
heat,
which
promotes
proinflammatory
procoagulant
changes.
Key
factors
in
pathophysiology
involve
mitochondrial
thermal
damage
excessive
oxidative
stress,
drive
apoptosis
necrosis.
While
the
kinetics
cellular
from
heat
have
been
extensively
studied,
mechanisms
driving
heat-induced
organ
death
not
yet
fully
understood.
Converse
hyperthermia,
hypothermia
is
generally
protective,
as
seen
therapeutic
hypothermia.
However,
accidental
presents
another
environmental
threat
due
arrhythmias,
cardiac
arrest,
coagulopathy.
From
a
physiology
perspective,
supports
homeostasis
enhances
preservation,
aiding
whole-body
recovery
following
resuscitation.
This
review
summarizes
recent
findings
on
temperature-related
preservation
suggests
future
research
directions
for
understanding
tempo-physiologic
axis.
Язык: Английский
Sepsis-induced cardiac dysfunction: mitochondria and energy metabolism
Intensive Care Medicine Experimental,
Год журнала:
2025,
Номер
13(1)
Опубликована: Фев. 18, 2025
Abstract
Sepsis
is
a
life-threatening
multi-organ
dysfunction
syndrome
caused
by
dysregulated
host
response
to
infection,
posing
significant
global
healthcare
challenge.
Sepsis-induced
myocardial
(SIMD)
common
complication
of
sepsis,
significantly
increasing
mortality
due
its
high
energy
demands
and
low
compensatory
reserves.
The
substantial
mitochondrial
damage
rather
than
cell
apoptosis
in
SIMD
suggests
disrupted
cardiac
metabolism
as
crucial
pathophysiological
mechanism.
Therefore,
we
systematically
reviewed
the
mechanisms
underlying
SIMD,
including
alterations
substrates,
excitation–contraction
coupling
processes,
dysfunction,
autophagy
biogenesis,
summarizing
potential
therapeutic
targets
within
them.
Язык: Английский
Liver injury in sepsis: manifestations, mechanisms and emerging therapeutic strategies
Frontiers in Immunology,
Год журнала:
2025,
Номер
16
Опубликована: Март 28, 2025
Sepsis
is
defined
as
a
condition
related
to
infection
that
manifests
with
multiorgan
dysfunction,
representing
life-threatening
state.
Consequently,
severe
complications
frequently
occur,
liver
injury
being
one
of
the
most
prevalent
serious
sepsis.
Liver
dysfunction
during
sepsis
serves
an
independent
predictor
mortality.
This
review
provides
comprehensive
overview
current
research
on
sepsis-induced
(SILI),
encompassing
clinical
manifestations,
diagnostic
criteria,
pathogenesis
and
therapeutic
strategies
associated
this
condition.
SILI
may
manifest
hypoxic
hepatitis
due
ischemia
shock,
cholestasis
resulting
from
abnormal
bile
metabolism,
or
duct
sclerosis.
The
pathophysiology
involves
intricate
interactions
among
inflammatory
response,
oxidative
stress,
cell
death.
All
these
factors
complicate
treatment
represent
potential
targets
for
intervention.
Furthermore,
addresses
limitations
inherent
in
conventional
therapies
currently
employed
managing
emphasizes
novel
targeted
aimed
at
addressing
fundamental
mechanisms
underlying
Язык: Английский
Apoptosis-Mechanisms, Regulation in Pathology, and Therapeutic Potential
IntechOpen eBooks,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 2, 2025
Apoptosis,
a
highly
regulated
form
of
programmed
cell
death
(PCD),
is
essential
for
development,
tissue
homeostasis,
and
the
immune
response.
This
self-destructive
process
characterized
by
distinct
cellular
changes,
including
membrane
blebbing,
chromatin
condensation,
DNA
fragmentation,
formation
apoptotic
bodies.
Apoptosis
can
be
triggered
two
primary
signaling
pathways:
intrinsic
(mitochondrial)
pathway,
responding
to
internal
stress,
extrinsic
(death
receptor)
initiated
external
signals.
Both
pathways
ultimately
activate
caspases,
proteolytic
enzymes
that
dismantle
in
an
orderly
manner,
preventing
inflammation.
The
pathway
Bcl-2
protein
family,
balancing
pro-apoptotic
anti-apoptotic
signals
maintain
integrity,
while
mitochondrial
disruptions
lead
release
cytochrome
c
activation
downstream
machinery.
Dysregulation
apoptosis
linked
various
diseases,
cancer,
where
defective
processes
allow
uncontrolled
proliferation,
neurodegenerative
disorders,
excessive
leads
loss.
review
offers
in-depth
understanding
apoptosis,
its
regulatory
mechanisms
offer
crucial
insights
therapeutic
approaches
targeting
diseases
abnormal
survival
or
death.
Язык: Английский
Identification and experimental validation of diagnostic and prognostic genes CX3CR1, PID1 and PTGDS in sepsis and ARDS using bulk and single-cell transcriptomic analysis and machine learning
Frontiers in Immunology,
Год журнала:
2024,
Номер
15
Опубликована: Дек. 23, 2024
Background
Sepsis
is
an
uncontrolled
reaction
to
infection
that
causes
severe
organ
dysfunction
and
a
primary
cause
of
ARDS.
Patients
suffering
both
sepsis
ARDS
have
poor
prognosis
high
mortality.
However,
the
mechanisms
behind
their
simultaneous
occurrence
are
unclear.
Methods
We
acquired
datasets
from
GEO
Arrayexpress
databases
screened
hub
genes
by
WGCNA
machine
learning
algorithm.
For
diagnosis
prognosis,
ROC
curve
survival
analysis
were
used.
performed
GO,
KEGG,
GSEA,
immune
cell
infiltration,
drug
prediction,
molecular
docking,
transcription
factor
constructed
PPI
ceRNA
networks
explore
these
common
Single-cell
data
compared
profiles
gene
localization.
Finally,
RT-qPCR
H&E
staining
confirmed
reliability
using
PBMCs
samples
mouse
models.
Results
identified
242
differentially
expressed
in
showed
turquoise
module
GSE95233
strongly
linked
while
black
GSE10474
associated
with
Using
three
methods
(LASSO,
random
forest
Boruta),
we
key
CX3CR1,
PID1
PTGDS.
Models
built
them
AUC
values
evaluations
validated
external
datasets,
accurately
predicting
further
explored
immunological
landscape
infiltration
single-cell
analysis.
Then,
ceRNA,
predicted
drugs
docking
analyzed.
Ultimately,
demonstrated
differently
human
Conclusion
This
study
signatures
(CX3CR1,
PTGDS)
ARDS,
patient
samples.
research
may
be
valuable
for
identifying
shared
biological
potential
treatment
targets
diseases.
Язык: Английский