The Oxidative Stress of Human Sperm Cryopreservation
Steven D. Fleming,
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Laura Kelly Thomson
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Antioxidants,
Journal Year:
2025,
Volume and Issue:
14(4), P. 402 - 402
Published: March 28, 2025
Due
to
their
negligible
cytoplasm
and
composition
of
the
sperm
plasmalemma,
spermatozoa
are
particularly
vulnerable
lipid
peroxidative
damage
induced
by
reactive
oxygen
species
(ROS).
Most
ROS
referred
as
free
radicals
because
they
have
unpaired
electrons,
causing
them
scavenge
electrons
from
atoms
within
tissues,
resulting
in
oxidative
cellular
components
including
cell
membranes,
intracellular
organelles,
DNA.
The
potential
consequences
stress
include
impaired
function,
DNA
fragmentation,
apoptosis.
Understanding
mechanisms
that
mediate
during
cryopreservation
is
key
development
improved
freezing
media
formulations
methodology
mitigate
its
occurrence.
Historically,
elucidation
those
has
proven
largely
elusive
complicated
positive
role
also
play
messengers
redox
signaling
different
pathways
More
recently,
been
revealed
most
likely
suspect
cryopreservation-induced
damage.
This
narrative
review
was
intended
provide
an
in-depth
analysis
involved
offer
insight
into
possible
improvements
cryopreservation.
Language: Английский
Influence of Body Mass Index (BMI) and Waist–Hip Ratio (WHR) on Selected Semen Parameters
International Journal of Molecular Sciences,
Journal Year:
2025,
Volume and Issue:
26(9), P. 4089 - 4089
Published: April 25, 2025
Because
male
obesity
may
result
in
reproductive
failure,
we
aimed
to
examine
the
possible
links
among
body
mass
index
(BMI),
waist–hip
ratio
(WHR),
and
basic
semen
parameters,
oxidation–reduction
potential
of
semen,
total
antioxidant
capacity
seminal
plasma,
ability
sperm
bind
hyaluronic
acid,
DNA
fragmentation
(SDF).
This
study
was
performed
on
(n
=
543)
collected
from
volunteers
classified
as
follows:
normal
weight
(BMI
18.5–24.9
kg/m2),
overweight
25.0–29.9
obese
≥
30.0
with
a
WHR
(<1)
or
abnormal
(≥1).
No
significant
differences
standard
parameters
were
found
between
men
BMI
those
overweight/obesity.
However,
compared
men,
had
higher
SDF
prevalence
risk
for
an
>
20%.
Compared
<
1,
1
significantly
lower
motility,
morphology,
vitality
increased
index,
In
conclusion,
greater
negative
impact
conventional
than
BMI.
Both
negatively
influenced
chromatin
integrity
only.
Obesity
is
factor
damage.
Language: Английский