Cell Reports,
Journal Year:
2025,
Volume and Issue:
44(4), P. 115531 - 115531
Published: April 1, 2025
Seasonal
coronaviruses,
similar
to
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2),
only
cause
symptoms
in
a
small
fraction
of
infected
individuals.
However,
the
host
factors
that
determine
variable
responses
infection
remain
unclear.
Here,
we
use
seasonal
human
OC43
(HCoV-OC43)
as
an
asymptomatic
model
triggers
both
innate
and
adaptive
immune
mice.
Interestingly,
sensing
pathways
well
cells
are
not
essential
protection
against
HCoV-OC43.
Instead,
alveolar
macrophage
(AMΦ)
deficiency
mice
results
COVID-19-like
pneumonia
post
HCoV-OC43
infection,
with
abundant
neutrophil
infiltration,
extracellular
trap
(NET)
release,
exaggerated
pro-inflammatory
cytokine
production.
Mechanistically,
AMΦ
efficiently
phagocytose
HCoV-OC43,
effectively
blocking
virus
spread,
whereas,
their
absence,
Toll-like
receptor
(TLR)-dependent
chemokine
production
pneumonia.
These
findings
reveal
central
role
defending
clinical
implications
for
immunopathology
associated
infection.
Frontiers in Immunology,
Journal Year:
2024,
Volume and Issue:
15
Published: Jan. 18, 2024
Background
Nucleated
red
blood
cells
(nRBC)
are
precursor
of
the
erythropoiesis
that
absent
from
peripheral
under
physiological
conditions.
Their
presence
is
associated
with
adverse
outcomes
in
critically
ill
patients.
This
study
aimed
to
evaluate
predictive
value
nRBC
on
mortality
intensive
care
unit
(ICU)
patients
COVID-19
acute
respiratory
distress
syndrome
(ARDS).
Material
and
methods
retrospective,
observational
cohort
analyzed
data
206
ICU
diagnosed
ARDS
between
March
2020
2022.
The
primary
endpoint
was
mortality,
secondary
endpoints
included
hospital
stay
lengths,
ventilation
hours,
time
courses
disease
severity
scores
clinical
laboratory
parameters.
Results
Among
patients,
68.9%
tested
positive
for
at
least
once
during
their
stay.
A
maximum
105
µl
-1
had
highest
accuracy
predicting
(area
curve
receiver
operating
characteristic
[AUCROC]
0.780,
p
<
0.001,
sensitivity
69.0%,
specificity
75.5%).
Mortality
significantly
higher
among
>105
than
≤105
(86.5%
vs.
51.3%,
=
0.008).
Compared
negative
blood,
those
required
longer
mechanical
(127
[44
-
289]
h
517
[255
950]
h,
0.001),
stays
(12
[8
–
19]
27
[13
51]
d,
(19
[12
29]
d
31
[16
58]
0.001).
Peak
Sepsis-related
Organ
Failure
Assessment
(SOFA),
Simplified
Acute
Physiology
Score,
P
a
O
2
/F
i
,
interleukin-6,
procalcitonin
values
were
reached
before
peak
level.
However,
performance
SOFA
(AUCROC
0.842,
0.001)
considerably
improved
when
score
>8
combined.
Discussion
predict
indicate
ARDS,
they
should
be
considered
alarm
signal
worse
outcome.
late
predictor
compared
other
established
scoring
systems
parameters
but
improve
prediction
combined
score.
International Journal of Medical Sciences,
Journal Year:
2024,
Volume and Issue:
21(5), P. 826 - 836
Published: Jan. 1, 2024
Respiratory
infectious
diseases
have
long
been
recognised
as
a
substantial
global
healthcare
burden
and
are
one
of
the
leading
causes
death
worldwide,
particularly
in
vulnerable
individuals.
In
post
COVID-19
era,
there
has
surge
prevalence
influenza
virus
A
other
multiple
known
viruses
causing
cold
compared
with
during
same
period
previous
three
years,
which
coincided
countries
easing
restrictions
worldwide.
This
article
aims
to
review
community-acquired
respiratory
illnesses
covering
broad
spectrum
viruses,
bacteria,
atypical
microorganisms
focuses
on
cluster
pathogens
China,
thereby
providing
effective
prevention
control
measures.
PEDIATRICS,
Journal Year:
2024,
Volume and Issue:
153(5)
Published: April 12, 2024
BACKGROUND
AND
OBJECTIVES
Respiratory
viral
infections
increase
risk
of
asthma
in
infants
and
children.
Infection
with
the
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
virus
can
cause
lung
inflammation
prolonged
symptoms.
We
sought
to
determine
whether
SARS-CoV-2
infection
modified
pediatric
incident
risk.
METHODS
This
retrospective
cohort
study
examined
children
ages
1
16
within
Children’s
Hospital
Philadelphia
Care
Network
who
received
polymerase
chain
reaction
(PCR)
testing
for
between
March
1,
2020
February
28,
2021.
Multivariable
Cox
regression
models
assessed
hazard
ratio
new
diagnosis
PCR
positive
negative
groups
an
18-month
observation
window.
Models
were
adjusted
demographic
characteristics,
socioeconomic
variables,
atopic
comorbidities.
RESULTS
There
27
423
subjects
included
study.
In
analyses,
positivity
had
no
significant
effect
on
(hazard
[HR]:
0.96;
P
=
.79).
Black
race
(HR:
1.49;
.004),
food
allergies
1.26;
.025),
allergic
rhinitis
2.30;
<
.001)
significantly
increased
diagnosis.
Preterm
birth
1.48;
.005)
BMI
1.13;
<5
years
old.
CONCLUSIONS
was
not
associated
period,
although
known
factors
confirmed.
informs
prognosis
care
a
history
infection.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 15, 2025
ABSTRACT
The
COVID-19
pandemic,
caused
by
the
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2),
has
had
a
profound
global
impact
since
its
emergence
in
late
2019.
Characterized
wide
spectrum
of
clinical
manifestations,
ranging
from
asymptomatic
infection
to
distress
and
death,
necessitated
extensive
research
into
host-pathogen
interactions
that
drive
disease
progression.
Understanding
molecular
mechanisms
underlying
host
response
SARS-CoV-2
is
crucial
for
development
effective
therapeutic
interventions
preventative
strategies.
This
study
employed
multi-omic
approach
combined
direct
RNA
sequencing
(DRS)
Illumina
cDNA
investigate
whole
blood
transcriptomic
profiles
patients.
By
leveraging
unique
capabilities
Nanopore
DRS,
which
provides
long-read
data,
we
were
able
capture
not
only
gene
expression
levels
but
also
modifications,
including
poly(A)
tail
length,
non-adenine
residue
(non-A),
pseudouridylation
(psU),
5-methylcytosine
(m5C)
methylation.
comprehensive
analysis
allowed
us
identify
differentially
expressed
genes
(DEGs)
explore
these
modifications
on
function
within
context
COVID-19.
Our
findings
reveal
significant
alterations
patterns,
lengths,
non-A
prevalence
psU
m5C
patients
compared
healthy
controls.
These
results
provide
valuable
insights
complex
interplay
between
viral
infection,
immune
response,
processing,
contributing
deeper
understanding
pathogenesis.
International Journal of Molecular Sciences,
Journal Year:
2025,
Volume and Issue:
26(2), P. 722 - 722
Published: Jan. 16, 2025
The
COVID-19
pandemic
has
accelerated
advances
in
molecular
biology
and
virology,
enabling
the
identification
of
key
biomarkers
to
differentiate
between
severe
mild
cases.
Furthermore,
use
artificial
intelligence
(AI)
machine
learning
(ML)
analyze
large
datasets
been
crucial
for
rapidly
identifying
relevant
disease
prognosis,
including
COVID-19.
This
approach
enhances
diagnostics
emergency
settings,
allowing
more
accurate
efficient
patient
management.
study
demonstrates
how
algorithms
departments
can
identify
vital
prognosis
an
emerging
using
as
example
by
analyzing
clinical,
epidemiological,
analytical,
radiological
data.
All
consecutively
admitted
patients
were
included,
than
89
variables
processed
Random
Forest
(RF)
algorithm.
RF
model
achieved
highest
balanced
accuracy
at
92.61%.
most
predictive
mortality
included
procalcitonin
(PCT),
lactate
dehydrogenase
(LDH),
C-reactive
protein
(CRP).
Additionally,
system
highlighted
significance
interstitial
infiltrates
chest
X-rays
D-dimer
levels.
Our
results
demonstrate
that
is
critical
diseases,
accelerating
data
analysis,
optimizing
personalized
treatment,
emphasizing
importance
PCT
LDH
high-risk
patients.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Jan. 18, 2025
The
COVID-19
pandemic
has
profoundly
affected
global
health
system,
significantly
altering
not
only
the
acute
management
of
viral
infection,
but
also
strategies
for
chronic
diseases.
This
study
aimed
to
investigate
impact
infection
on
exacerbation
rates
and
economic
burden
in
patients
with
COPD.
We
conducted
a
retrospective
cohort
using
data
from
national
insurance
reimbursement
South
Korea.
Eligible
participants
included
COPD
diagnosed
between
January
December
2020.
analyzed
rates,
healthcare
utilization,
medical
costs
pre-
post-COVID-19
infection.
In
3,445
who
were
infected
by
COVID-19,
resulted
increased
annual
moderate-to-severe
severe
exacerbations
compared
pre-COVID-19
(IRR
=
1.062
[95%CI
1.027-1.099];
IRR
1.315
1.182-1.481],
respectively).
Among
previously
non-exacerbators,
11.2%
transitioned
exacerbator
after
Older
age,
comorbidities
use
triple
therapy
factors
associated
transitioners.
Direct
escalated
approximately
$6810
$11,032,
reflecting
intensity
care
rate
imposed
heavier
system.
substantial
number
exacerbators