Molecules,
Journal Year:
2022,
Volume and Issue:
27(9), P. 2903 - 2903
Published: May 2, 2022
COVID-19
has
expanded
across
the
world
since
its
discovery
in
Wuhan
(China)
and
had
a
significant
impact
on
people's
lives
health.
Long
COVID
is
term
coined
by
World
Health
Organization
(WHO)
to
describe
variety
of
persistent
symptoms
after
acute
SARS-CoV-2
infection.
been
demonstrated
affect
various
SARS-CoV-2-infected
persons,
independently
disease
severity.
The
long
COVID,
like
COVID-19,
consist
set
damage
organs
systems
such
as
respiratory,
cardiovascular,
neurological,
endocrine,
urinary,
immune
systems.
Fatigue,
dyspnea,
cardiac
abnormalities,
cognitive
attention
impairments,
sleep
disturbances,
post-traumatic
stress
disorder,
muscle
pain,
concentration
problems,
headache
were
all
reported
COVID.
At
molecular
level,
renin-angiotensin
system
(RAS)
heavily
involved
pathogenesis
this
illness,
much
it
phase
viral
In
review,
we
summarize
several
tissues,
with
special
focus
significance
RAS
pathogenesis.
risk
factors
potential
therapy
approaches
are
also
explored.
medRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2022,
Volume and Issue:
unknown
Published: Aug. 10, 2022
SARS-CoV-2
infection
can
result
in
the
development
of
a
constellation
persistent
sequelae
following
acute
disease
called
post-acute
COVID-19
(PASC)
or
Long
COVID
1-3
.
Individuals
diagnosed
with
frequently
report
unremitting
fatigue,
post-exertional
malaise,
and
variety
cognitive
autonomic
dysfunctions
;
however,
basic
biological
mechanisms
responsible
for
these
debilitating
symptoms
are
unclear.
Here,
215
individuals
were
included
an
exploratory,
cross-sectional
study
to
perform
multi-dimensional
immune
phenotyping
conjunction
machine
learning
methods
identify
key
immunological
features
distinguishing
COVID.
Marked
differences
noted
specific
circulating
myeloid
lymphocyte
populations
relative
matched
control
groups,
as
well
evidence
elevated
humoral
responses
directed
against
among
participants
Further,
unexpected
increases
observed
antibody
non-SARS-CoV-2
viral
pathogens,
particularly
Epstein-Barr
virus.
Analysis
mediators
various
hormones
also
revealed
pronounced
differences,
levels
cortisol
being
uniformly
lower
groups.
Integration
data
into
unbiased
models
identified
significant
critical
accurate
classification
COVID,
decreased
most
individual
predictor.
These
findings
will
help
guide
additional
studies
pathobiology
may
aid
future
objective
biomarkers
Frontiers in Immunology,
Journal Year:
2023,
Volume and Issue:
14
Published: Jan. 26, 2023
The
emergence
of
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
caused
a
pandemic
named
disease
2019
(COVID-19)
that
has
become
the
greatest
worldwide
public
health
threat
this
century.
Recent
studies
have
unraveled
numerous
mysteries
SARS-CoV-2
pathogenesis
and
thus
largely
improved
COVID-19
vaccines
therapeutic
strategies.
However,
important
questions
remain
regarding
its
therapy.
In
review,
recent
research
advances
on
mechanism
are
quickly
summarized.
We
mainly
discuss
current
therapy
strategies
for
COVID-19,
with
an
emphasis
antiviral
agents,
neutralizing
antibody
therapies,
Janus
kinase
inhibitors,
steroids.
When
necessary,
specific
mechanisms
history
present,
representative
described
in
detail.
Finally,
we
key
outstanding
future
directions
development
treatment.
COVID-19,
with
persistent
and
new
onset
of
symptoms
such
as
fatigue,
post-exertional
malaise,
cognitive
dysfunction
that
last
for
months
impact
everyday
functioning,
is
referred
to
Long
COVID
under
the
general
category
post-acute
sequelae
SARS-CoV-2
infection
(PASC).
PASC
highly
heterogenous
may
be
associated
multisystem
tissue
damage/dysfunction
including
acute
encephalitis,
cardiopulmonary
syndromes,
fibrosis,
hepatobiliary
damages,
gastrointestinal
dysregulation,
myocardial
infarction,
neuromuscular
neuropsychiatric
disorders,
pulmonary
damage,
renal
failure,
stroke,
vascular
endothelial
dysregulation.
A
better
understanding
pathophysiologic
mechanisms
underlying
essential
guide
prevention
treatment.
This
review
addresses
potential
hypotheses
connect
long-term
health
consequences.
Comparisons
between
other
virus-initiated
chronic
syndromes
myalgic
encephalomyelitis/chronic
fatigue
syndrome
postural
orthostatic
tachycardia
will
addressed.
Aligning
identifying
potentially
regulated
common
underlining
pathways
necessary
true
nature
PASC.
The
discussed
contributors
include
from
injury
one
or
more
organs,
reservoirs
replicating
virus
its
remnants
in
several
tissues,
re-activation
latent
pathogens
Epstein-Barr
herpes
viruses
COVID-19
immune-dysregulated
environment,
interactions
host
microbiome/virome
communities,
clotting/coagulation
dysfunctional
brainstem/vagus
nerve
signaling,
dysautonomia
autonomic
dysfunction,
ongoing
activity
primed
immune
cells,
autoimmunity
due
molecular
mimicry
pathogen
proteins.
individualized
suggests
different
therapeutic
approaches
required
best
manage
specific
patients.
Nature Medicine,
Journal Year:
2022,
Volume and Issue:
29(1), P. 226 - 235
Published: Dec. 1, 2022
Abstract
The
post-acute
sequelae
of
SARS-CoV-2
infection
(PASC)
refers
to
a
broad
spectrum
symptoms
and
signs
that
are
persistent,
exacerbated
or
newly
incident
in
the
period
after
acute
infection.
Most
studies
have
examined
these
conditions
individually
without
providing
evidence
on
co-occurring
conditions.
In
this
study,
we
leveraged
electronic
health
record
data
two
large
cohorts,
INSIGHT
OneFlorida+,
from
national
Patient-Centered
Clinical
Research
Network.
We
created
development
cohort
validation
OneFlorida+
including
20,881
13,724
patients,
respectively,
who
were
infected,
investigated
their
diagnoses
30–180
days
documented
Through
machine
learning
analysis
over
137
conditions,
identified
four
reproducible
PASC
subphenotypes,
dominated
by
cardiac
renal
(including
33.75%
25.43%
patients
cohorts);
respiratory,
sleep
anxiety
(32.75%
38.48%);
musculoskeletal
nervous
system
(23.37%
23.35%);
digestive
respiratory
(10.14%
12.74%)
sequelae.
These
subphenotypes
associated
with
distinct
patient
demographics,
underlying
before
phase
severity.
Our
study
provides
insights
into
heterogeneity
may
inform
stratified
decision-making
management
Brain,
Journal Year:
2022,
Volume and Issue:
146(5), P. 2142 - 2152
Published: Oct. 26, 2022
Brain
changes
have
been
reported
in
the
first
weeks
after
SARS-CoV-2
infection.
However,
limited
literature
exists
about
brain
alterations
post-COVID
syndrome,
a
condition
increasingly
associated
with
cognitive
impairment.
The
present
study
aimed
to
evaluate
functional
and
structural
patients
assess
whether
these
were
related
dysfunction.
Eighty-six
syndrome
36
healthy
controls
recruited
underwent
neuroimaging
acquisition
comprehensive
neuropsychological
assessment.
Cognitive
examinations
performed
11
months
symptoms
of
SARS-CoV-2.
Whole-brain
connectivity
analysis
was
performed.
Voxel-based
morphometry
grey
matter
volume,
diffusion
tensor
imaging
carried
out
analyse
white-matter
alterations.
Correlations
between
cognition
conducted
Bonferroni
corrected.
Post-COVID
presented
changes,
characterized
by
hypoconnectivity
left
right
parahippocampal
areas,
bilateral
orbitofrontal
cerebellar
areas
compared
controls.
These
accompanied
reduced
volume
cortical,
limbic
white
axial
mean
diffusivity.
Grey
loss
showed
significant
associations
more
pronounced
hospitalized
non-hospitalized
patients.
No
vaccination
status
found.
shows
persistent
abnormalities
acute
are
dysfunction
contribute
better
understanding
pathophysiology
syndrome.