Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: July 18, 2023
Abstract
The
secondary
sex
ratio
(SRB)
is
a
widely
used
descriptor
that
reflects
the
living
conditions
and
health
status
during
pregnancy.
aim
of
study
was
to
assess
impact
maternal
factors,
season
birth,
air
pollution
with
heating
on
at
birth
in
Subcarpathian
population
from
Krosno
district.
A
retrospective
involving
11,587
births
occurred
John
Paul
II
Podkarpackie
Province
Hospital
between
2016
2020.
Sex
newborn,
their
as
well
age,
order,
interval
births,
were
analysed.
Furthermore,
relationship
SRB
level
investigated.
To
determine
significance
differences
ratios,
chi-square
analysis
multifactorial
regression
used,
set
p
<
0.05.
At
level,
all
studied
factors
indicated
statistically
significant
SRB.
However,
model
shows
age
order
most
important
shaping
group.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Jan. 2, 2024
Abstract
The
secondary
sex
ratio
(SSR)
is
a
widely
used
descriptor
that
reflects
the
living
conditions
and
health
status
during
pregnancy.
aim
of
study
was
to
assess
impact
maternal
factors,
season
birth,
air
pollution
with
heating
on
at
birth
in
Subcarpathian
population
from
Krosno
district,
Poland.
A
retrospective
involving
11,587
births
occurred
John
Paul
II
Podkarpackie
Province
Hospital
between
2016
2020.
Sex
newborn,
their
as
well
age,
order,
interval
births,
were
analysed.
Furthermore,
relationship
SSR
level
investigated.
To
determine
significance
differences
ratios,
chi-square
analysis
multifactorial
regression
used,
set
p
<
0.05.
At
level,
all
studied
factors
indicated
statistically
significant
SSR.
However,
model
shows
age
order
most
important
shaping
group.
Frontiers in Endocrinology,
Journal Year:
2023,
Volume and Issue:
14
Published: March 30, 2023
Objectives
The
aim
of
this
study
was
to
detect
any
gender
bias
in
fetal
malformation
cases.
Design
This
a
cross-sectional,
quantitative
survey.
Subjects
Overall,
1,661
Asian
cases
involving
induced
abortions
the
obstetrics
department
first
Affiliated
Hospital
Zhengzhou
University
from
2012
2021
were
included.
Main
outcome
measures
Measurements
ultrasound
detectable
structural
malformations
classified
into
13
subtypes.
Karyotyping,
single
nucleotide
polymorphism
(SNP)
array,
or
sequencing
diagnosis
these
fetus
also
included
measures.
Results
sex
ratio
(male/female)
all
types
1.446.
Cardiopulmonary
had
highest
proportion
with
28%.
Diaphragmatic
hernia,
omphalocele,
gastroschisis,
nuchal
translucency
(NT),
and
Multy
significantly
higher
proportions
males
(
p
<
0.05).
Digestive
system
females
Maternal
age
associated
genetic
factors
r
=
0.953,
0.001)
inversely
brain
−0.570,
0.002).
More
found
trisomy
21,
18,
monogenetic
diseases,
while
duplications,
deletions,
uniparental
disomy
(UPD)
similar
ratios
between
females,
but
not
statistically
significant.
Conclusion
Sex
differences
are
common
malformations,
males.
Genetic
testing
has
been
proposed
account
for
differences.
Animals,
Journal Year:
2023,
Volume and Issue:
13(8), P. 1326 - 1326
Published: April 12, 2023
This
study
provides
new
unique
information
on
bovine
twin
pairs
during
the
late
embryonic
period
(28-34
days
of
pregnancy)
in
relation
to
(1)
a
predictive
ultrasound
measurement
that
was
differential
for
sexing
heterosexual
twins;
(2)
intrauterine
growth
patterns
pairs;
and
(3)
higher
vulnerability
female
embryos
compared
males
following
an
induced
embryo
reduction
twins.
The
population
comprised
92
dairy
cows
carrying
bilateral
A
length
difference
between
co-twins
equal
or
greater
than
25%
around
50%
pregnancies
served
determine
sex
with
100%
accuracy
twins,
which
assessed
four
weeks
later
remaining
fetus
after
reduction.
apparent
rates
individual
male
from
day
28
34
gestation
were
similar
established
pattern
standards
singletons.
Mean
sizes
gestational
age
smaller
by
some
5
days'
equivalent
twins
After
risk
loss
null.
allowed
selection
at
time
American Journal of Human Biology,
Journal Year:
2023,
Volume and Issue:
36(4)
Published: Nov. 2, 2023
Abstract
Objective
The
impact
of
maternal
stress
on
birth
outcomes
is
well
established
in
the
scientific
research.
sex
ratio
at
(SRB),
namely
male
to
female
live
births,
shows
significant
alteration
when
mothers
experience
acute
conditions,
as
proposed
by
Trivers‐Willard
Hypothesis.
We
aimed
synthetize
literature
relationship
between
two
exogenous
and
catastrophic
stressful
events
(natural
disasters
epidemics)
SRB.
Methods
A
systematic
search
was
run
Scopus,
PubMed,
Web
Science,
Cochrane
Library,
until
March
9,
2023.
produced
1336
articles
25
met
inclusion
criteria.
found
seven
case–control
studies
18
observational
studies.
Most
investigated
earthquakes
other
natural
disasters.
Only
examined
effect
epidemics
or
pandemics.
Results
results
seem
inconsistent,
16
a
decline
SRB,
three
rise,
four
did
not
record
any
change
gave
contradictory
results.
period
population
analyzed,
source
information,
method
variance
analysis
failure
assess
confounding
variables
may
have
influenced
incongruence
Conclusion
Our
findings
contribute
improve
knowledge
about
socio‐ecological
factors
Future
should
investigate
mechanisms
which
this
impacts
public
health,
particular
health
pregnant
women
their
newborn,
through
an
accurate
consistent
methodology
that
also
includes
factors.
Minerva Obstetrics and Gynecology,
Journal Year:
2022,
Volume and Issue:
75(2)
Published: March 3, 2022
The
human
sex
ratio
at
birth
(SRB)
is
the
parameter
which
reflects
relationship
between
males
and
females
birth.
It
not
50:50,
but
approximately
0.515
in
favor
of
males.
There
are
many
factors
that
can
influence
SRB
its
variations
easily
demonstrable.Our
aim
was
to
investigate
environmental
agents
capable
causing
by
providing
a
narrative
review
scientific
literature.Studies
demonstrated
male
female
embryos/fetuses'
response
stress
different
way
ones
show
less
resistance.
This
phenomenon
seems
persist
for
six
months
after
stressful
event,
suggesting
purpose
reproductive
regulation
protection
perpetuation
species.
Although
dependence
with
parenting
decisions,
thanks
prenatal
diagnosis
assisted
fertility
techniques
understood,
it
more
complex
correlate
pressures
act
through
secondary
mechanisms.
Covid-19
pandemic,
natural
catastrophes,
terroristic
attacks,
economic
crises
some
difficulties
encountered
recent
times.The
impact
all
reported
explained
only
possible
priori
determination
conception,
also
effects
pregnancy
outcomes.
Thus,
appears
be
multifactorial
mechanism,
besides
matter
genetics.
pandemic
climate
changes
present
important
opportunities
research
possibly
reaching
certain
answers.
Moscow University Psychology Bulletin,
Journal Year:
2024,
Volume and Issue:
47(1), P. 11 - 30
Published: Jan. 1, 2024
Background.
The
relevance
of
gender
issues
is
associated
with
discussions
outside
the
scientific
field,
while
in
science
itself,
popularity
studies
increasing
every
year.
Objectives.
present
article
aims
at
application
conceptual
mechanism
cultural-historical
approach
to
issues.
Methods.
Abstraction,
analysis
and
synthesis
literary
data,
comparison
theoretical
models,
generalization
were
used.
Results.
Sex
as
a
biological
entity
divided
into
an
innate
“natural”
category
culturological
one.
A
number
examples
demonstrate
non-identity
sex
well
variants
their
combination
interaction.
It
proposed
disidentify
identity
psychological
category.
latter
understood
analogue
higher
mental
function
which
forms
intravitally
under
specific
social
conditions,
it
mediated
by
signs
(appearance,
manners,
norms,
preferences,
values,
taboos,
etc.)
possible
self-regulate.
In
meantime,
limitations
mastering
one's
own
behaviour
are
emphasized,
since
origin
connected
parameters
sex,
inconsistency
norms
wide
field
influence.
Here
cultural
pathology
sphere
intersex
interaction
reveals
itself.
Conclusions.
seen
be
heuristic
multifactorial
understanding
include
biological,
cultural,
psychological,
ontogenetic
aspects.
European Journal of Epidemiology,
Journal Year:
2024,
Volume and Issue:
39(9), P. 967 - 976
Published: July 15, 2024
Abstract
The
human
sex
ratio
at
birth
(SRB)
undergoes
temporary
changes
around
a
mean
proportion
of
0.51
male
births.
SRB
has
been
well
studied
for
historical,
geographical,
and
secular
trends,
but
until
now
not
linked
to
health
outcomes
in
the
total
population,
e.g.
cardiovascular
disease
(CVD)
or
mortality
during
follow-up
cohorts.
We
used
linkage
analysis
based
on
national
registers
Sweden
that
cover
all
births
from
1900
2016.
was
calculated
by
every
10-year
cohort
survivors
living
1997
risk
CVD
with
data
registers.
When
highest
quartile
as
reference,
slightly
increased
fatal
(HR
1.03
(95%
confidence
intervals,
CI):
1.02–1.04),
non-fatal
1.01;
95%CI:
1.01–1.02)
1.02;
95%CI,
1.01–1.03)
found
after
full
adjustments
men
belonging
lowest
quartile.
A
similar
pattern
also
CHD
women.
SBR
compared
highest,
HR
(95%CI:
1.02–1.05).
In
conclusion,
cohorts
relatively
lower
than
expected
number
males
born,
long-term
adverse
effects
were
observed
population
level.
This
could
indicate
so-called
“culled
cohorts”
developed
country
20th
century
are
characterized
reflect
negative
early
life
influences
environmental
exposures
pregnant
women
resulting
selective
loss
embryos
fetuses.
public
perspective
be
some
importance
monitor
an
aspect
statistics
minor
effects.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 17, 2024
Neurodevelopmental
disorders
have
a
strong
male
bias
that
is
poorly
understood.
Placenta
rich
source
of
molecular
information
about
environmental
interactions
with
genetics
(including
biological
sex),
affect
the
developing
brain.
We
investigated
placental-brain
transcriptional
responses
in
an
established
mouse
model
prenatal
exposure
to
human-relevant
mixture
polychlorinated
biphenyls
(PCBs).
Frontiers in Genetics,
Journal Year:
2022,
Volume and Issue:
13
Published: March 9, 2022
The
etiology
of
autism
spectrum
disorders
(ASD)
is
complex,
involving
different
combinations
genetic
and
environmental
factors.
My
lab's
approach
has
been
to
investigate
DNA
methylation
as
a
tractable
genome-wide
modification
at
the
interface
these
complex
interactions,
reflecting
past
future
events
in
molecular
pathogenesis
ASD.
Since
X-linked
genes
were
enriched
differences
discovered
from
cord
blood
newborns
later
diagnosed
with
ASD,
this
prompted
me
review
revisit
recent
advancements
field
X
chromosome
inactivation
(XCI),
particularly
humans
other
primates.
In
Perspective,
I
compare
XCI
mechanisms
mammalian
species,
including
finding
noncoding
transcript
XACT
associated
erosion
human
pluripotent
stem
cells
findings
non-human
primate
post-implantation
embryos.
focus
on
experimentally
challenging
peri-
stages
development
when
timing
prolonged
imprecise
humans.
Collectively,
research
raised
some
important
unanswered
questions
biased
sex
ratios
births
male
bias
incidence
medRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Jan. 14, 2023
Designing
prophylactic
strategies
for
newborns
requires
understanding
of
the
factors
that
contribute
to
immunity
and
resistance
infection.
We
analyzed
1,892,035
mother-newborn
pairs
in
which
both
mother
newborn
were
observed
continuously
at
least
one
year
before
after
birth.
As
part
this
study,
we
considered
maternal
exposures
infections
immune
disorders
during
pregnancy,
anti-infection
medications
by
newborn,
as
well
newborn's
delivery
type
reported
complications.
According
our
analyses,
infection
rates
disorder
over-dispersed
among
newborns.
The
most
consequential
predicting
newborns'
health
preterm
birth,
with
276.3%
193.9%
risk
increases
bacterial
infections.
Newborn
anti-infective
prescriptions
associated
considerable
diseases
affecting
health,
while
fewer
outcomes
mixed
signs.
Cesarean
section
mode
delivery,
mother's
age,
sex
exposure
all
showed
significant
but
smaller
effects
on
health.
Female
appeared
be
better
protected
against
system
etiology,
except
miscellaneous
