The maternal lifestyle in pregnancy: Implications for foetal skeletal muscle development
Haijun Sun,
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Meixia Chen,
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Jialong Liao
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et al.
Journal of Cachexia Sarcopenia and Muscle,
Journal Year:
2024,
Volume and Issue:
15(5), P. 1641 - 1650
Published: Aug. 18, 2024
The
world
is
facing
a
global
nutrition
crisis,
as
evidenced
by
the
rising
incidence
of
metabolic
disorders
such
obesity,
insulin
resistance
and
chronic
inflammation.
Skeletal
muscle
largest
tissue
in
humans
plays
an
important
role
movement
host
metabolism.
Muscle
fibre
formation
occurs
mainly
during
embryonic
stage.
Therefore,
maternal
lifestyle,
especially
exercise
pregnancy,
has
critical
influence
on
foetal
skeletal
development
subsequent
health
offspring.
In
this
review,
malnutrition
micronutrient
intake
systematically
summarized.
We
also
aim
to
describe
how
shapes
gut
microbiota
its
metabolites
further
discussed,
although
field
still
'infancy'.
This
review
will
provide
new
insights
reduce
crisis
highlight
current
gaps
promote
research.
Language: Английский
Balancing LncRNA H19 and miR‐675 Bioconversion as a Key Regulator of Embryonic Myogenesis Under Maternal Obesity
Journal of Cachexia Sarcopenia and Muscle,
Journal Year:
2025,
Volume and Issue:
16(2)
Published: March 31, 2025
ABSTRACT
Background
Maternal
obesity
(MO)
impairs
fetal
skeletal
muscle
development,
but
the
underlying
mechanisms
remain
poorly
defined.
The
regulatory
roles
of
lncRNA
H19
and
its
first
exon
derived
microRNA675
(
miR675
)
in
prenatal
development
to
be
examined.
/
Igf2
are
same
imprinting
cluster
with
expressed
from
maternal
allele
while
expresses
paternally.
contains
a
G‐rich
loop,
KH‐type
splicing
protein
(KHSRP)
mediates
biogenesis
pre‐
miRNAs
containing
loops,
which
depends
on
phosphorylation
by
AKT,
key
mediator
IGF2
signalling.
This
study
aims
depict
elusive
function
these
regulators
that
affected
MO
during
embryonic
myogenesis.
Methods
Single‐cell
transcriptomic
sequencing
GeoMx
spatial
RNA
were
performed
identify
differentially
genes
between
embryos
control
(CT)
mice.
Both
E11.5
E13.5
collected
analysed
validate
data.
miR657
myogenesis
further
P19
cells
via
CRISPR/dCas9‐mediated
activation
inhibition.
epigenetic
changes
methylated
DNA
immunoprecipitation,
allele‐targeted
analysis
was
crossing
C57BL/6J
CAST/EiJ
Results
Transcriptomic
showed
contained
less
differentiated
myocytes
(1.34%)
than
CT
(2.86%).
Myogenesis‐related
GO
biological
processes
down‐regulated
myotome
region.
lower
expression
myogenic
transcription
factors
such
as
Myf5
,
Myod1
Myog
Mef2c
Myh3
p
<
0.05).
altered
modifications
genomic
cluster,
showing
decreased
methylation
level
region
0.05)
diallelic
pattern
elevated
embryos.
Overexpression
inhibited
cells,
promoted
myogenesis,
suggesting
critical
bioconversion
.
A
KHSRP
process
relies
IGF2/AKT
Knocking‐down
inhibition
AKT
abolished
biogenesis.
suppressed
signalling
blocked
KHSRP‐dependent
Conclusions
We
found
differential
effects
up‐regulates
blocks
suppressing
IGF2/AKT/KHSRP
axis.
Myogenesis
impeded
due
highly
accumulated
Language: Английский
Restoration of vascular dysfunction resulting from maternal high-fat diet via modulation of the NLRP3/IL-1β axis
Clinical and Experimental Hypertension,
Journal Year:
2024,
Volume and Issue:
47(1)
Published: Dec. 26, 2024
This
study
investigated
the
impact
of
maternal
high-fat
diet
on
vascular
function
and
endothelial
homeostasis
in
offspring.
We
found
that
offspring
exposed
to
exhibited
elevated
blood
pressure,
impaired
abdominal
aortic
function,
imbalance.
These
changes
were
accompanied
by
increased
levels
reactive
oxygen
species
(ROS)
upregulation
pro-inflammatory
cytokines
(including
IL-1β,
TNF-α,
IL-6,
IL-10).
Treatment
with
NLRP3
or
IL-1β
inhibitors
prevented
deterioration
reduced
NO
production,
inflammation
induced
exposure
compared
control
group.
The
findings
suggest
during
pregnancy,
mitigating
impairments
can
be
achieved
inhibiting
NLRP3/IL-1β
pathway.
Language: Английский
SYISL Knockout Promotes Embryonic Muscle Development of Offspring by Modulating Maternal Gut Microbiota and Fetal Myogenic Cell Dynamics
Advanced Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 16, 2024
Embryonic
muscle
fiber
formation
determines
post-birth
totals.
The
previous
research
shows
SYISL
knockout
significantly
increases
numbers
and
mass
in
mice,
but
the
mechanism
remains
unclear.
This
study
confirms
that
gene,
maternal
gut
microbiota,
their
interaction
affect
number
of
fibers
mouse
embryos
through
distinct
mechanisms,
as
alters
microbiota
composition
boosts
butyrate
levels
embryonic
serum.
Both
fecal
transplantation
feeding
increase
offspring,
with
inhibiting
histone
deacetylases
increasing
acetylation
muscle.
Combined
analysis
RNA-seq
between
wild-type
mice
ChIP-seq
for
H3K9ac
H3K27ac
reveals
regulates
myogenesis
via
butyrate-HDAC-H3K9ac/H3K27ac
pathway.
Furthermore,
scRNA-seq
alone
proportion
myogenic
cells
dynamics,
independently
regulating
levels.
Cell
communication
suggests
this
may
be
due
to
downregulation
signaling
pathways
such
MSTN
TGFβ.
Overall,
multiple
are
highlighted
which
influences
development,
offering
valuable
insights
treating
diseases
improving
livestock
production.
Language: Английский