Genomics Proteomics & Bioinformatics,
Год журнала:
2023,
Номер
21(5), С. 1014 - 1029
Опубликована: Июль 13, 2023
Abstract
Severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
caused
the
persistent
disease
2019
(COVID-19)
pandemic,
which
has
resulted
in
millions
of
deaths
worldwide
and
brought
an
enormous
public
health
global
economic
burden.
The
recurring
wave
infections
been
exacerbated
by
growing
variants
SARS-CoV-2.
In
this
study,
virological
characteristics
original
SARS-CoV-2
strain
its
concern
(VOCs;
including
Alpha,
Beta,
Delta)
vitro,
as
well
differential
transcriptomic
landscapes
multiple
organs
(lung,
right
ventricle,
blood,
cerebral
cortex,
cerebellum)
from
infected
rhesus
macaques,
were
elucidated.
a
stronger
innate
immune
response
host
cells,
VOCs
markedly
increased
levels
subgenomic
RNA
s,
such
N,
Orf9b,
Orf6,
Orf7ab,
are
known
antagonists
inhibitors
antiviral
factors.
Intriguingly,
Alpha
variant
induced
larger
alteration
abundance
tissues
monkeys
than
Beta
Delta
did.
Moreover,
hyperinflammatory
state
active
shown
ventricles
up-regulation
inflammation-
immune-related
RNAs.
Furthermore,
peripheral
blood
may
mediate
signaling
transmission
among
to
coordinate
molecular
changes
individuals.
Collectively,
these
data
provide
insights
into
pathogenesis
COVID-19
at
early
stage
infection
VOCs.
Metabolites,
Год журнала:
2023,
Номер
13(2), С. 309 - 309
Опубликована: Фев. 20, 2023
The
nucleoside
analog
β-D-N4-hydroxycytidine
is
the
active
metabolite
of
prodrug
molnupiravir
and
accepted
as
an
efficient
drug
against
COVID-19.
Molnupiravir
targets
RNA-dependent
RNA
polymerase
(RdRp)
enzyme,
which
responsible
for
replicating
viral
genome
during
replication
process
certain
types
viruses.
It
works
by
disrupting
normal
function
RdRp
causing
it
to
make
mistakes
genome.
These
can
prevent
from
being
transcribed,
converted
into
a
complementary
DNA
template,
translated,
or
functional
protein.
By
these
crucial
steps
in
process,
effectively
inhibit
virus
reduce
its
ability
cause
disease.
This
review
article
sheds
light
on
impact
SARS-CoV-2
variants
concern,
such
delta,
omicron,
hybrid/recombinant
variants.
detailed
mechanism
molecular
interactions
using
docking
dynamics
have
also
been
covered.
safety
tolerability
patients
with
comorbidities
emphasized.
Tropical Medicine and Infectious Disease,
Год журнала:
2022,
Номер
7(11), С. 373 - 373
Опубликована: Ноя. 12, 2022
Our
study
aims
to
describe
the
global
distribution
and
dispersal
patterns
of
SARS-CoV-2
Omicron
subvariants.
Genomic
surveillance
data
were
extracted
from
CoV-Spectrum
platform,
searching
for
BA.1*,
BA.2*,
BA.3*,
BA.4*,
BA.5*
variants
by
geographic
region.
BA.1*
increased
in
November
2021
South
Africa,
with
a
similar
increase
across
all
continents
early
December
2021.
did
not
reach
100%
dominance
continents.
The
spread
first
described
differed
greatly
region,
contrast
which
followed
expansion,
firstly
occurring
Asia
subsequently
Europe,
Oceania,
North
America.
BA.4*
different
pattern,
where
reached
high
proportions
(maximum
60%)
only
Africa.
is
currently,
Mid-August
2022,
dominant
strain,
reaching
almost
continent
aside
Africa
show
increasing
proportions,
Asia,
Americas,
Oceania
are
following.
emergence
new
depends
mostly
on
their
selective
advantage,
translated
as
enhanced
transmissibility
ability
invade
people
existing
immunity.
Describing
these
useful
better
understanding
epidemiology
VOCs'
transmission
generating
hypotheses
about
future
emerging
variants.
BMC Infectious Diseases,
Год журнала:
2023,
Номер
23(1)
Опубликована: Ноя. 28, 2023
Considering
the
fact
that
COVID-19
has
undergone
various
changes
over
time,
its
symptoms
have
also
varied.
The
aim
of
this
study
is
to
describe
and
compare
in
personal
characteristics,
symptoms,
underlying
conditions
individuals
infected
with
different
strains
COVID-19.This
descriptive-analytical
was
conducted
on
46,747
patients
who
underwent
PCR
testing
during
a
two-year
period
from
February
22,
2020
23,
2022,
South
Khorasan
province,
Iran.
Patient
characteristics
were
extracted
based
self-report
information
system.
data
analyzed
using
logistic
regression
artificial
neural
network
approaches.
R
software
used
for
analysis
significance
level
0.05
considered
tests.Among
cases
analyzed,
23,239
(49.7%)
male,
mean
age
51.48
±
21.41
years.
There
significant
difference
among
variants
disease
(p
<
0.001).
factors
positive
association
myalgia
(OR:
2.04;
95%
CI,
1.76
-
2.36),
cough
1.93;
1.68-2.22),
taste
or
smell
disorder
2.62;
2.1
3.28).
Additionally,
aging
found
increase
likelihood
across
six
periods.We
older
age,
myalgia,
taste/smell
are
better
compared
dyspnea
high
body
temperature,
identifying
patient.
As
evolved,
chills
diarrhea,
demonstrated
prognostic
strength
as
Omicron.
International Journal of Medical Microbiology,
Год журнала:
2024,
Номер
314, С. 151599 - 151599
Опубликована: Янв. 18, 2024
SARS-CoV-2
genomic
analysis
has
been
key
to
the
provision
of
valuable
data
meet
both
epidemiological
and
clinical
demands.
High-throughput
sequencing,
generally
Illumina-based,
necessary
ensure
widest
coverage
in
global
variant
tracking.
However,
a
speedier
response
is
needed
for
nosocomial
outbreak
analyses
rapid
identification
patients
infected
by
emerging
VOCs.
An
alternative
based
on
nanopore
sequencing
may
be
better
suited
delivering
faster
when
required;
however,
although
there
are
several
studies
offering
side-by-side
comparisons
Illumina
evaluations
usefulness
hospital
routine
availability
provided
still
lacking.
We
performed
prospective
10-week
nanopore-based
MinION
laboratory
setting,
including
83
specimens
where
time
was
necessary.
The
analyzed
corresponded
i)
international
travellers
which
lineages
were
assigned
determine
proper
management/special
isolation
patients;
ii)
infections
health-care-worker
infections,
SNP-based
required
rule
in/out
relationships
tailor
specific
interventions
iii)
sentinel
cases
breakthrough
timely
report
Public
Health
authorities.
MinION-based
compared
with
standard
procedures,
supported
sequencing;
accelerated
delivery
results
(average
30
h)
reduced
costs
28€
Illumina,
without
reducing
accuracy
SNP
calling.
Parallel
integration
strategies
suitable
solution
high-throughput
cope
accelerating
surveillance
demands
while
also
maintaining
accuracy.
Frontiers in Cellular and Infection Microbiology,
Год журнала:
2023,
Номер
13
Опубликована: Июнь 9, 2023
Corona
Virus
Disease
2019
(COVID-19)
continues
to
be
a
burden
for
human
health
since
its
outbreak
in
Wuhan,
China
December
2019.
Recently,
the
emergence
of
new
variants
concerns
(VOCs)
is
challenging
vaccines
and
drugs
efficiency.
In
severe
cases,
SARS-CoV-2
provokes
inappropriate
hyperinflammatory
immune
responses
leading
acute
respiratory
distress
syndrome
(ARDS)
even
death.
This
process
regulated
by
inflammasomes
which
are
activated
after
binding
viral
spike
(S)
protein
cellular
angiotensin-converting
enzyme
2
(ACE2)
receptor
triggers
innate
responses.
Therefore,
formation
“cytokines
storm”
leads
tissue
damage
organ
failure.
NOD-like
family
pyrin
domain
containing
3
(NLRP3)
best
studied
inflammasome
known
during
infection.
However,
some
studies
suggest
that
infection
associated
with
other
as
well;
such
NLRP1,
absent
melanoma-2
(AIM-2),
caspase-4
-8
were
mostly
found
dsRNA
virus
or
bacteria
Multiple
inhibitors
exist
non-infectious
diseases
have
potential
used
treat
complications.
Some
them
showed
quite
encouraging
results
pre-
clinical
trials.
Nevertheless,
further
need
understanding
targeting
SARS-Cov-2-induced
inflammasomes;
an
update
role
VOCs
necessary.
Hence,
this
review
highlights
all
reported
involved
their
including
NLRP3-
Gasdermin
D
(GSDMD)-inhibitors.
Further
strategies
immunomodulators
siRNA
also
discussed.
As
highly
related
COVID-19
developing
holds
promise
effectively
reduce
mortality.