medRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 11, 2024
Abstract
Background
SARS-CoV-2
infection
may
lead
to
Post-COVID
Syndrome
(PCS),
characterized
by
debilitating
symptoms
like
persistent
fatigue,
cardiovascular
symptoms,
and
cognitive
dysfunction.
Persistent
endothelial
dysfunction
(ED)
is
a
potential
driver
of
ongoing
symptoms.
Yet,
the
underlying
biological
mechanisms
remain
unclear.
Methods
In
this
prospective
observational
study,
we
41
PCS
patients
24
healthy
controls
(HC,
matched
out
n
=
204,
recruited
before
pandemic)
investigated
effect
Spike
protein
1
(S1)
plasma
from
on
human
retinal
cells
(HREC).
Results
Plasma
samples
exhibited
significantly
elevated
erythropoietin,
VEGF
MCP-1
alongside
decreased
IL-6
levels
compared
HC.
Low
Haemoglobin
Haematocrit
were
negatively
associated
with
severity.
positively
correlated
Anti-S1
IgG
in
upregulated
mRNA
level
HREC
exposed
S1.
Additionally,
S1
exposure
promoted
ROS
production
transiently
activated
HIF-1α
HREC.
activation
HIF-2α
led
disrupted
integrity.
severely
affected
showed
increased
compromised
barrier
function.
Treatment
Belzutifan,
inhibitor,
restored
integrity
or
PCS-plasma.
Conclusion
These
findings
suggest
that
HIF-2α-mediated
ED
might
be
therapeutical
target
for
Belzutifan.
Trial
registration
URL:
https://www.clinicaltrials.gov
;
Unique
identifier:
NCT05635552
Novelty
significance
What
Is
Known?
Endothelial
consequence
acute
syndrome
(PCS)
Patients
show
inflammation
markers.
proteins
can
persist
up
12
months
post-infection,
driving
immune
activation.
New
Information
Does
This
Article
Contribute?
haemoglobin
(Hb)
high
correlate
higher
low
Hb
C19-YRS
severity
score.
exhibit
Erythropoietin
(EPO)
when
alone
patient’s
induce
primarily
through
Both
cause
oxidative
stress
disrupting
Inhibition
effectively
restores
plasma.
circulation
spike
sustain
chronic
PCS.
Here
exhibits
which
correlates
IgG.
was
titres
Levels
EPO
patients,
more
pronounced
observed
cells,
both
activation,
rather
than
NF-κB.
factors
significant
stress,
evidenced
turn
disrupts
Notably,
restore
function,
offering
therapeutic
Graphical
RMD Open,
Journal Year:
2025,
Volume and Issue:
11(2), P. e005469 - e005469
Published: April 1, 2025
Background
SARS-CoV-2
induces
acute
non-specific
endothelial/microvascular
alterations
that
have
been
identified
by
nailfold
videocapillaroscopy
(NVC).
Details
on
NVC
abnormalities
in
long
covid
(LC)
patients
(pts)
are
unknown.
Methods
LC
pts
without
and
with
systemic
sclerosis
(non-SSc-LC
SSc-LC),
recovered
COVID-19
(RC)
did
not
develop
healthy
matched
control
subjects
(CNT)
underwent
examinations
were
evaluated
a
multicentre
national
study
from
the
Capillaroscopy
Microcirculation
Rheumatic
Diseases
Study
Group
of
Italian
Society
Rheumatology.
Retrospective
collection
was
performed
for
demographic
data,
course
infection,
comorbidities,
concomitant
drugs.
quantified
validated
scores.
Pre-COVID-19
post-COVID-19
microvascular
status
analysed
NVC.
Results
62
non-SSc-LC
(49
female/13
male,
51±16
years
old),
24
SSc-LC
(21
female/3
59±17
23
RC
(18
female/5
51±18
old)
84
CNT
(68
female/16
52±12
analysed.
Non-SSc-LC
showed
significantly
more
dilated
capillaries
(p<0.01,
p
multivariate<0.01),
microhaemorrhages
(p=0.01,
multivariate<0.05),
abnormal
shapes
(p<0.05,
multivariate<0.05)
than
note,
lower
mean
capillary
number
per
linear
millimetre
multivariate<0.01)
both
CTN
multivariate<0.05).
Of
highest
interest,
16
statistically
(p<0.05)
after
COVID-19,
compared
pre-COVID-19
status.
Similarly,
(24)
density
(p=0.01)
(p<0.01)
Conclusions
show
at
as
CNT,
which
may
contribute
to
pathogenesis
persistent
organ/systems
dysfunction.
BMC Cardiovascular Disorders,
Journal Year:
2024,
Volume and Issue:
24(1)
Published: May 7, 2024
Abstract
Background
Coronavirus
disease
2019
(COVID-19)
has
various
sequelae,
one
of
which
might
be
hypertension.
We
aimed
to
evaluate
COVID-19’s
impact
on
blood
pressure
(BP)
in
non-hospitalized
patients
at
one-year
follow-up.
Method
A
total
7,950
consecutive
COVID-19
regularly
visiting
our
cardiology
clinic
were
retrospectively
screened.
Patients’
electronic
medical
records
including
demographics,
comorbidities,
vital
signs,
treatments,
and
outcomes,
reviewed
by
two
physicians.
Individuals
with
least
BP
measurement
the
three
months
preceding
12
or
more
following
recovery
included.
levels
before
after
compared
using
paired
t-test.
Results
5,355
confirmed
(mean
age
55.51
±
15.38
years)
Hypertension
(56.9%)
diabetes
mellitus
(34%)
predominant
44.3%
had
prior
major
adverse
cardiovascular
events.
Both
systolic
(126.90
20.91
vs.
139.99
23.94
mmHg,
P
<
0.001)
diastolic
(80.54
13.94
86.49
14.40
significantly
higher
post-COVID-19
pre-COVID-19.
Notably,
456
(14%)
hypertensive
experienced
exacerbated
hypertension,
while
408
(17%)
developed
new-onset
overall
864
(16%)
exacerbation
new
Linear
regression
analysis
revealed
that
advanced
age,
smoking,
previous
events,
predict
increased
(
0.001).
Conclusion
raised
long
term
patients,
over
one-sixth
developing
All
should
evaluated
regarding
BP,
recovery,
particularly
those
mentioned
predictive
factors.
(clinicaltrial.gov:
NCT05798208)
Diagnostics,
Journal Year:
2024,
Volume and Issue:
14(11), P. 1168 - 1168
Published: May 31, 2024
Long
COVID,
characterized
by
a
persistent
symptom
spectrum
following
SARS-CoV-2
infection,
poses
significant
health,
social,
and
economic
challenges.
This
review
aims
to
consolidate
knowledge
on
its
epidemiology,
clinical
features,
underlying
mechanisms
guide
global
responses;
The Medical Journal of Australia,
Journal Year:
2024,
Volume and Issue:
221(S9)
Published: Nov. 3, 2024
Immune
dysregulation
is
a
key
aspect
of
post-acute
sequelae
coronavirus
disease
2019
(PASC),
also
known
as
long
COVID,
with
sustained
activation
immune
cells,
T
cell
exhaustion,
skewed
B
profiles,
and
disrupted
communication
thereby
resulting
in
autoimmune-related
complications.
The
gut
emerging
critical
link
between
microbiota,
metabolism
overall
dysfunction,
potentially
sharing
similarities
other
chronic
fatigue
conditions
PASC.
Immunothrombosis
neurological
signalling
dysfunction
emphasise
the
complex
interplay
system,
blood
clotting,
central
nervous
system
context
severe
acute
respiratory
syndrome
2
(SARS-CoV-2)
infection.
Clear
research
gaps
design
PASC
studies,
especially
longitudinal
research,
stand
out
significant
areas
concern.
Clinical Nutrition ESPEN,
Journal Year:
2023,
Volume and Issue:
58, P. 253 - 262
Published: Oct. 14, 2023
Long
COVID
syndrome
(LCS)
involves
persistent
symptoms
experienced
by
many
patients
after
recovering
from
coronavirus
disease
2019
(COVID-19).
We
aimed
to
assess
skeletal
muscle
energy
metabolism,
which
is
closely
related
substrate
oxidation
rates
during
exercise,
in
with
LCS
compared
healthy
controls.
also
examined
whether
power
output
mediates
the
relationship
between
COVID-19
and
metabolism.
medRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Feb. 8, 2024
Abstract
Background
Multiple
studies
have
shown
that
Long
COVID
(LC)
disease
is
associated
with
heightened
immune
activation,
as
evidenced
by
elevated
levels
of
inflammatory
mediators.
However,
there
no
comprehensive
meta-analysis
focusing
on
activation
the
response
system
(IRS)
and
compensatory
immunoregulatory
(CIRS)
along
other
phenotypes
in
LC
patients.
Objectives
This
designed
to
explore
IRS
CIRS
profiles
patients,
individual
cytokines,
chemokines,
growth
factors,
C-reactive
protein
(CRP)
immune-associated
neurotoxicity.
Methods
To
gather
relevant
for
our
research,
we
conducted
a
thorough
search
using
databases
such
PubMed,
Google
Scholar,
SciFinder,
covering
all
available
literature
up
December
20th,
2023.
Results
The
current
encompassed
82
examined
multiple
profiles,
protein,
58
cytokines/chemokines/growth
factors
3836
patients
versus
4537
normal
controls
(NC).
showed
significant
increases
IRS/CIRS
ratio
(standardized
mean
difference
(SMD:0.156,
confidence
interval
(CI):
0.051;0.261),
(SMD:
0.345,
CI:
0.222;0.468),
M1
macrophage
0.421,
0.290;0.551),
T
helper
(Th)1
0.353,
0.189;0.517),
Th17
0.492,
0.332;0.651)
neurotoxicity
0.327
0.205;0.448).
In
addition,
CRP
19
different
cytokines
displayed
significantly
compared
NC.
Conclusion
characterized
increased
Microorganisms,
Journal Year:
2024,
Volume and Issue:
12(5), P. 909 - 909
Published: April 30, 2024
Three
patients
with
relapsing
and
remitting
borreliosis,
babesiosis,
bartonellosis,
despite
extended
anti-infective
therapy,
were
prescribed
double-dose
dapsone
combination
therapy
(DDDCT)
for
8
weeks,
followed
by
one
or
several
two-week
courses
of
pulsed
high-dose
(HDDCT).
We
discuss
these
patients’
cases
to
illustrate
three
important
variables
required
long-term
remission.
First,
diagnosing
treating
active
co-infections,
including
Babesia
Bartonella
important.
rotations
multiple
anti-malarial
drug
combinations
herbal
therapies,
6-day
HDDCT
pulses
achieve
clinical
Second,
all
prior
oral,
intramuscular
(IM),
and/or
intravenous
(IV)
antibiotics
used
chronic
Lyme
disease
(CLD)/post-treatment
syndrome
(PTLDS),
irrespective
the
length
administration,
inferior
in
efficacy
short-term
biofilm/persister
i.e.,
dapsone,
rifampin,
methylene
blue,
pyrazinamide,
which
improved
resistant
fatigue,
pain,
headaches,
insomnia,
neuropsychiatric
symptoms.
Lastly,
addressing
factors
on
16-point
systemic
infectious
(MSIDS)
model
was
achieving
In
conclusion,
DDDCT
6–7-day
HDDCT,
while
abnormalities
MSIDS
map,
could
represent
a
novel
effective
strategy
CLD/PTLDS
associated
co-infections
Bartonella.
Biomedicines,
Journal Year:
2024,
Volume and Issue:
12(7), P. 1488 - 1488
Published: July 5, 2024
Viral
infection
frequently
affects
the
cardiovascular
system,
and
vascular
disturbances
in
patients
can
lead
to
health
complications.
One
essential
component
of
system
that
is
vulnerable
inflammatory
effects
viral
infections
microcirculatory
system.
As
a
suitable
practical
non-invasive
method
assess
structure
function
retinal
microcirculation,
proxy
for
fundus
imaging
be
used.
We
examined
impact
on
vessel
diameters
performed
systematic
analysis
literature.
Our
search
was
carried
out
PubMed
using
predefined
queries.
After
methodological
filtering
process,
we
were
able
reduce
corpus
363
publications
16
studies
met
parameters.
used
narrative
review
style
summarise
observations.
Six
covered
COVID-19,
seven
described
HIV,
three
included
subgroup
called
others,
covering
viruses,
such
as
Dengue
Fever
Crimean–Congo
Haemorrhagic
Fever.
Analysis
literature
showed
are
associated
with
alterations
vessels’
vasoactivity.
COVID-19
other
cause
inflammation-associated
vasodilatation
microvasculature
short-term
effect
infection.
Long
well
HIV
chronic
inflammation
impacting
microvascular
morphology
via
diameter
narrowing.
The
emphasises
importance
understudied
area
infections’
microcirculation.
Continuous
research
this
needed
further
verify
an
innovative
tool
optimal
diagnosis
changes.
changes
precede
bigger
arteries,
early
detection
go
long
way
reducing
morbidity
mortality
diseases.
Frontiers in Medicine,
Journal Year:
2024,
Volume and Issue:
11
Published: Sept. 30, 2024
Background
Given
the
high
prevalence
of
fibrotic
interstitial
lung
abnormalities
(ILAs)
post-COVID-19,
this
study
aims
to
evaluate
effectiveness
quantitative
CT
features
in
predicting
ILAs
at
3-month
follow-up.
Methods
This
retrospective
utilized
cohorts
from
distinct
clinical
settings:
training
dataset
comprised
individuals
presenting
fever
clinic
and
emergency
department,
while
validation
included
patients
hospitalized
with
COVID-19
pneumonia.
They
were
classified
into
group
nonfibrotic
based
on
whether
present
A
U-Net-based
AI
tool
was
used
for
quantification
both
pneumonia
lesions
pulmonary
blood
volumes.
Receiver
operating
characteristic
(ROC)
curve
analysis
multivariate
assess
their
predictive
abilities
ILAs.
Results
Among
dataset,
122
(mean
age
68
years
±16
[standard
deviation],
73
men),
55.74%
showed
The
identified
volume
[PV,
odd
ratio
(OR)
3.28,
95%
confidence
interval
(CI):
1.20–9.31,
p
=
0.02],
consolidation
(CV,
OR
3.77,
CI:
1.37–10.75,
0.01),
ground-glass
opacity
(GV,
3.38,
1.26–9.38,
0.02),
mass
(PM,
3.58,
1.28–10.46,
score
(OR
12.06,
3.15–58.89,
<
0.001)
as
independent
predictors
ILAs,
all
parameters
effective
(all
>
0.05).
And
area
under
(AUC)
values
PV
(0.79),
GV
(0.78),
PM
CV
(0.80),
(0.77).
comprising
45
67.29
±
14.29
years,
25
males)
57.78%
showing
follow-up,
confirmed
validity
these
AUC
(0.86),
(0.90),
(0.83),
(0.88),
(0.85).
Additionally,
percentage
vessels
<5mm
2
relative
total
(BV5%)
significantly
lower
(
0.048)
compared
those
without.
Conclusion
U-Net
lesion
BV5%
baseline
scan
has
potential
predict
follow-up
patients.