Journal of obstetrics and women s diseases,
Год журнала:
2024,
Номер
73(1), С. 17 - 28
Опубликована: Март 26, 2024
BACKGROUND:
At
the
beginning
of
pandemic
COVID-19,
attention
obstetricians
and
gynecologists
was
focused
on
studying
impact
SARS-CoV-2
obstetric
perinatal
outcomes.
Currently,
dynamics
mutations
in
genes
encoding
proteins
determines
emergence
a
large
number
new
strains
virus
that
are
highly
virulent.
Given
this
fact,
problem
assessing
COVID-19
pregnancy
outcomes
also
remains
relevant.
AIM:
The
aim
study
to
assess
novel
coronavirus
infection
(COVID-19)
transmitted
at
different
stages
gestation
structural
changes
placenta.
MATERIALS
AND
METHODS:
In
2022–2023,
prospective
analysis
113
cases
childbirth
women
who
had
during
carried
out
institutions
Novosibirsk.
total
sample
subjects
divided
into
three
groups
using
cluster
analysis.
Group
1
included
25
period
up
16
weeks;
2
consisted
61
patients
underwent
17
34
3
comprised
27
pregnant
whom
detected
after
weeks
pregnancy.
control
group
65
negative
smear
test
result
for
SARS-CoV-2.
Pathological
examination
placenta
macro-
microscopic
studies.
Statistical
processing
results
IBM
SPSS
Statistics
Version
25.0
program.
RESULTS:
most
common
fetal
distress
observed
Groups
(p
=
0.002).
We
found
an
inverse
correlation
between
gestational
age
which
woman
suffered
volumetric
density
capillaries
intervillous
fibrinoid,
as
well
percentage
formation
syncytial-capillary
membrane
villi
with
symplastic
buds.
On
contrary,
direct
connective
tissue
found.
Intervillusitis
more
often
placentas
2.
Histitocytic
infiltration
characteristic
2.
CONCLUSIONS:
frequency
adverse
intensity
depend
patient
infection.
significant
were
American Journal of Obstetrics and Gynecology,
Год журнала:
2022,
Номер
228(3), С. 261 - 269
Опубликована: Окт. 12, 2022
Stillbirth
is
a
recognized
complication
of
COVID-19
in
pregnant
women
that
has
recently
been
demonstrated
to
be
caused
by
SARS-CoV-2
infection
the
placenta.
Multiple
global
studies
have
found
placental
pathology
present
cases
stillbirth
consists
combination
concurrent
destructive
findings
include
increased
fibrin
deposition
typically
reaches
level
massive
perivillous
deposition,
chronic
histiocytic
intervillositis,
and
trophoblast
necrosis.
These
3
pathologic
lesions,
collectively
termed
placentitis,
can
cause
severe
diffuse
parenchymal
destruction
affect
>75%
placenta,
effectively
rendering
it
incapable
performing
its
function
oxygenating
fetus
leading
neonatal
death
via
malperfusion
insufficiency.
Placental
occur
absence
demonstrable
fetal
infection.
Development
placentitis
complex
process
may
both
an
infectious
immunologic
basis.
An
important
observation
all
reported
causing
death,
mothers
were
unvaccinated.
likely
result
episode
viremia
at
some
time
during
pregnancy.
This
article
discusses
clinical
aspects
relationship
between
maternal
vaccination,
perinatal
death.
International Journal of Molecular Sciences,
Год журнала:
2023,
Номер
24(5), С. 4550 - 4550
Опубликована: Фев. 25, 2023
The
outbreak
of
the
coronavirus
disease
2019
(COVID-19)
pandemic,
caused
by
novel
severe
acute
respiratory
syndrome
2
(SARS-CoV-2),
has
resulted
in
a
global
public
health
crisis,
causing
substantial
concern
especially
to
pregnant
population.
Pregnant
women
infected
with
SARS-CoV-2
are
at
greater
risk
devastating
pregnancy
complications
such
as
premature
delivery
and
stillbirth.
Irrespective
emerging
reported
cases
neonatal
COVID-19,
reassuringly,
confirmatory
evidence
vertical
transmission
is
still
lacking.
protective
role
placenta
limiting
utero
spread
virus
developing
fetus
intriguing.
short-
long-term
impact
maternal
COVID-19
infection
newborn
remains
an
unresolved
question.
In
this
review,
we
explore
recent
transmission,
cell-entry
pathways,
placental
responses
towards
infection,
its
potential
effects
on
offspring.
We
further
discuss
how
serves
defensive
front
against
exerting
various
cellular
molecular
defense
pathways.
A
better
understanding
barrier,
immune
defense,
modulation
strategies
involved
restricting
transplacental
may
provide
valuable
insights
for
future
development
antiviral
immunomodulatory
therapies
improve
outcomes.
SARS-CoV-2
placental
infection,
also
known
as
placentitis
(SP),
is
an
established
cause
of
stillbirth;
however,
this
pathology
rare
and
its
incidence
across
different
viral
variants
unknown.
We
report
two
new
cases
SP-associated
stillbirth
in
the
third
trimester
pregnancy.
The
were
identified
by
a
retrospective
review
84
fetal
autopsies
performed
at
our
institution
from
1
March
2020
to
2024.
In
one
case,
mother
was
previously
healthy
asymptomatic
for
COVID-19.
second
had
history
multiple
sclerosis
(MS)
suffered
recurrent
moderate-to-severe
both
cases,
placentas
showed
SP
with
massive
perivillous
fibrin
deposition
(PVFD),
involving
more
than
90%
discs,
resulting
insufficiency
lethal
hypoxic–ischemic
injury
fetuses.
Placental
tissues
positive
situ
hybridization
(ISH)
immunohistochemistry
(IHC).
Sequencing
revealed
delta
variant
Case
omicron
XBB.1.515
2.
data
demonstrate
that
SP,
albeit
rare,
continues
intrauterine
demise
(IUFD)
regardless
clinical
severity
infection.
persistence
COVID-19
becomes
globally
endemic
emphasizes
importance
disease
prevention
Infectious Diseases & Immunity,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 19, 2025
Abstract
The
coronavirus
disease
2019
(COVID-19)
pandemic,
caused
by
severe
acute
respiratory
syndrome
2
(SARS-CoV-2),
has
significantly
burdened
global
public
health.
However,
the
tropism
of
SARS-CoV-2
within
human
body
remains
not
fully
understood.
In
this
review,
we
overview
literature
on
infection
across
various
organs
and
tissues.
We
summarize
relevant
specimen
types,
techniques
for
examining
tropism,
findings
at
both
organ/tissue
cellular
levels.
To
systematically
evaluate
evidence
supporting
tissue
establish
a
hierarchical
classification
system
based
two
key
criteria:
(1)
origin
(2)
detection
methodology.
Clinical
specimens
obtained
directly
from
COVID-19
patients
provide
most
definitive
evidence,
whereas
organoid-derived
animal
models
indicate
potential
infectivity
under
artificial
conditions.
terms
methods,
prioritize
viral
particle
identification
over
protein
or
RNA
detection,
as
latter
requires
further
confirmation
to
productive
infection.
Our
that
potentially
targets
multiple
organ
systems,
including
tract,
lungs,
kidneys,
heart,
blood
vessels,
pancreas,
small
intestine,
liver,
salivary
glands.
By
contrast,
central
nervous
reproductive
uncertain
validation.
At
level,
identify
specific
target
cell
types
vulnerable
infection,
ciliated
epithelial
cells,
alveolar
type
II
pneumocytes,
enterocytes,
cardiomyocytes,
vascular
endothelial
renal
tubular
pancreatic
acinar
cells.
Furthermore,
analyze
correlation
between
angiotensin-converting
enzyme
receptor
distribution
patterns
well
variations
in
specificity
among
different
variants.
expect
review
comprehensive
landscape
enhance
our
understanding
life
cycle
consequences
body.
The Yale Journal of Biology and Medicine,
Год журнала:
2024,
Номер
97(1), С. 73 - 84
Опубликована: Март 29, 2024
Populations
identified
to
be
severely
affected
by
COVID-19,
such
as
pregnant
patients,
require
special
consideration
in
vaccine
counseling,
access,
and
provider
education.
Maternal
infection
with
COVID-19
poses
a
significant
risk
the
maternal-fetal
dyad
known
adverse
placenta
destruction
[1-5].
Despite
widespread
access
availability
of
vaccinations,
hesitancy
continues
persist
is
highly
prevalent
populations
[6-9].
Addressing
multitude
social
ecological
factors
surrounding
can
aid
providing
holistic
counseling
[10].
However,
are
foremost
shaped
maternal
concern
over
possible
fetal
effects
from
vaccination.
While
changes
policy
help
foster
acceptance,
increasing
global
education
incorporation
motivational
interviewing
skills
first
steps
towards
acceptance.
Viruses,
Год журнала:
2022,
Номер
14(9), С. 2043 - 2043
Опубликована: Сен. 14, 2022
There
is
accumulating
evidence
on
the
perinatal
aspects
of
COVID-19,
but
available
data
are
still
insufficient.
The
reports
COVID-19
have
been
published
a
small
group
patients.
Vertical
transmission
has
noted.
SARS-CoV-2
genome
can
be
detected
in
umbilical
cord
blood
and
at-term
placenta,
infants
demonstrate
elevated
SARS-CoV-2-specific
IgG
IgM
antibody
levels.
In
this
work,
analysis
clinical
characteristics
RT-PCR
SARS-CoV-2-positive
pregnant
women
their
infants,
along
with
placental
pathology
correlation
results,
including
villous
trophoblast
immunoexpression
status
for
antibody,
presented.
amniotic
fluid
testing
was
performed.
Neonatal
surveillance
infection
comprised
nasopharyngeal
swab
measuring
levels
anti-SARS-CoV-2
serum.
initial
study
were
161
positive
test
results.
From
that
group,
who
delivered
during
hospital
stay
selected
further
analysis.
Clinical
data,
laboratory
histomorphology
neonatal
outcomes
compared
immunohistochemistry
(IHC)-con
IHC
SARS-CoV-2-negative
placentas
(26
cases).
A
immunoprofile
noted
8%
cases
(n
=
2),
whereas
92%
negative
24).
Women
proven
by
had
significantly
different
pathological
findings
from
those
without.
One
infected
neonate
1;
4%).
Infection
confirmed
autopsy,
as
there
intrauterine
fetal
demise.
potential
course
risk
vertical
implications
fetal–neonatal
condition
critical
proper
management,
which
will
involve
comprehensive,
multidisciplinary
care