Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Dec. 12, 2023
Abstract
We
hypothesized
that
ram
epididymal
tail
sperm
may
be
efficiently
activated
in
homologous
seminal
plasma
compared
to
tris
and
sperm-TALP.
Eighty
ejaculates
were
collected
from
five
healthy
fertile
rams
by
artificial
vagina
for
harvesting
of
two-phase
centrifugation.
Spermatozoa
three
activation
fluids-
(SP),
sperm-TALP
(TP)
buffer
(TR)
preserved
at
4°C
72
hours.
Sperm
motility
was
higher
(p<0.05)
SP
(64.33±4.80-48
hr;
52.50±2.14-72
hr)
both
TP
(51.66±2.10-48
40.83±3.00-72
TR
groups
(52.50±4.03-48
41.66±3.33-72
48
hr
cold
storage.
CFDA
(Carboxy
fluorescein
diacetate)
positive
(Viable)
percentage
also
than
(72.39±0.62-SP,
67.13±1.29-TP,
66.89±1.65-TR)
hours
(63.37±2.19-SP,
56.13±1.60-TP,
58.18±1.49-TR)
HOST
reacted
(65.10±1.55-SP,
59.95±0.24-TP,
61.50±1.11-TR)
(55.09±1.17-SP,
46.53±0.78-TP,
50.16±0.16-TR)
storage
groups.
FITC-PNA
(Fluorescein
isothiocyanate
conjugated
peanut
agglutinin)
negative
(Intact
acrosomes)
0
(91.66±0.90-SP,
88.13±1.02-TR),
(75.54±0.70-SP,
74.49±1.07-TP)
(68.27±1.15-SP,
61.97±1.35-TP,
62.91±1.53-TR).
In
conclusion,
This
study
opened
a
new
window
research
further
explore
the
role
cryoprotection
sperm.
Antioxidants,
Journal Year:
2024,
Volume and Issue:
13(3), P. 322 - 322
Published: March 6, 2024
Cryopreservation
is
a
stressful
process
for
sperm,
as
it
associated
with
an
increased
production
of
reactive
oxygen
species
(ROS).
Elevated
ROS
levels,
which
create
imbalance
antioxidant
capacity,
may
result
in
membrane
lipid
peroxidation
(LPO),
protein
damage
and
DNA
fragmentation.
This
study
aimed
to
determine
whether
the
LPO
fragmentation
frozen–thawed
horse
sperm
relies
upon
activity,
including
enzymes
(superoxide
dismutase
(SOD),
glutathione
peroxidase
(GPX),
catalase
(CAT)
paraoxonase
type
1
(PON1));
non-enzymatic
capacity
(Trolox-equivalent
(TEAC),
plasma
ferric
reducing
(FRAP)
cupric
(CUPRAC));
oxidative
stress
index
(OSI)
their
seminal
(SP).
Based
on
total
motility
integrity
(SYBR14+/PI−)
after
thawing,
ejaculates
were
hierarchically
(p
<
0.001)
clustered
into
two
groups
good-
(GFEs)
poor-(PFEs)
freezability
ejaculates.
(global
breaks)
higher
0.05)
PFE
group
than
GFE
group,
thawing
showing
positive
relationship
SP
OSI
levels
production.
In
addition,
negatively
correlated
activity
antioxidants
(PON1
TEAC).
The
present
results
indicate
that
vary
between
These
differences
could
from
variations
TEAC)
balance
oxidant
components
SP.
Frontiers in Veterinary Science,
Journal Year:
2023,
Volume and Issue:
10
Published: May 25, 2023
Tissue
and
organ
transplantation
continues
to
be
an
effective
measure
for
saving
the
lives
of
certain
critically
ill
patients.
The
preservation
methods
that
are
commonly
utilized
in
clinical
practice
presently
only
capable
achieving
short-term
storage,
which
is
insufficient
meeting
demand
transplantation.
Ultra-low
temperature
storage
techniques
have
garnered
significant
attention
due
their
capacity
long-term,
high-quality
tissues
organs.
However,
experience
cryopreserving
cells
cannot
readily
extrapolated
cryopreservation
complex
organs,
latter
still
confronts
numerous
challenges
its
application.
This
article
summarizes
current
research
progress
cryogenic
discusses
limitations
existing
studies
main
obstacles
facing
finally
introduces
potential
directions
future
efforts.
Veterinary Sciences,
Journal Year:
2023,
Volume and Issue:
10(3), P. 214 - 214
Published: March 10, 2023
Activation
of
the
AMP-activated
protein
kinase
(AMPK)
has
been
demonstrated
to
be
beneficial
for
boar
sperm
quality
and
functionality,
while
underlying
mechanism
AMPK
activation
spermatozoa
remains
obscure.
This
study
aimed
explore
effect
antioxidants
oxidants
in
their
surrounding
fluid
(SF)
on
during
liquid
storage.
Ejaculates
from
Duroc
boars,
routinely
used
semen
production,
were
collected
diluted
a
final
concentration
25
×
106/mL.
In
experiment
1,
twenty-five
samples
eighteen
boars
stored
at
17
°C
7
days.
2,
three
pooled
created
nine
ejaculates
used,
each
sample
was
treated
with
0,
0.1,
0.2,
0.4
μM/L
H2O2
3
h.
Sperm
SF,
intracellular
AMP/ATP
ratio,
expression
levels
phosphorylated
(Thr172)
determined.
significantly
decreased
storage
time
terms
viability
(p
<
0.05).
Antioxidant
oxidant
markedly
affected
time,
decline
SF
total
antioxidant
capacity
(TAC)
0.05),
malondialdehyde
(MDA)
sperm's
status
(TOS),
as
well
fluctuation
superoxidase
dismutase-like
(SOD-like)
activity
The
ratio
increased
0.05)
day
4
subsequently
its
lowest
value
days
6
2
Correlation
analyses
indicate
that
correlated
which
phosphorylation
Treatment
induced
damages
(SF
TAC,
p
0.05;
SOD-like
activity,
0.01),
an
increase
MDA,
ROS
higher
comparison
control.
results
suggest
are
involved
Sel skokhozyaistvennaya Biologiya,
Journal Year:
2023,
Volume and Issue:
58(2), P. 249 - 259
Published: April 1, 2023
БИОХИМИЧЕСКИЕ
МАРКЕРЫ
КАЧЕСТВА
СПЕРМЫ
ЖЕРЕБЦОВ
*
(обзор)
М.М.АТРОЩЕНКО
,
Д.В.МЕДВЕДЕВ
Семенная
плазма
представляет
собой
многокомпонентную
жидкость,
служащую
средством
доставки
сперматозоидов
к
ооциту.Она
не
только
транспортирует
мужские
гаметы,
но
и
обеспечивает
их
защиту
питание
во
время
дальнейшего
движения
в
женских
половых
путях
(T.R.
Talluri
с
соавт.,
2017).Сведения
о
воздействии
компонентов
семенной
плазмы
на
половые
клетки,
а
также
поиск
маркеров
криоустойчивости
фертильности
спермы
несомненный
интерес
для
исследователей.Поскольку
продолжительность
жизни
жеребцов,
способность
капацитации
фертильность
сильно
различаются
у
разных
особей,
коневодства
важно
исследовать
факторы
Pakistan Veterinary Journal,
Journal Year:
2023,
Volume and Issue:
unknown
Published: Jan. 1, 2023
Semen
of
all
bulls
is
not
suitable
for
freezing;
similarly,
ejaculates
with
excellent
sperm
vitality
are
freezing.Based
on
survival
at
post-thawing,
bull
categorized
as
good
freezability
(GFE)
and
poor
(PFE).In
this
study,
quality
parameters
GFE
PFE,
the
localization
aquaporin-3
(AQP-3)
aquaporin-7
(AQP-7)
were
investigated.Moreover,
relationship
AQP-3
AQP-7
cryotolerance
sperms
was
recorded.After
fresh
semen
evaluation,
24
from
four
Angus
cryopreserved
their
analyzed
by
AndroVision
before
after
frozen-thawed.Expression
determined
through
Western
blot,
while
detected
immunocytochemistry.The
PFE
well
differentiated
motility,
progressive
viability,
acrosome
integrity,
mitochondrial
activity,
except
DNA
integrity.AQP-3
significantly
higher
in
than
frozen-thawed
sperm,
that
(P<0.05).The
location
seen
mid-piece,
recorded
post-acrosome
region,
mid
prime
tailpiece.In
conclusion,
PGE
can
be
distinguished
expression
semen,
could
a
biomarker
sperm.This
study
hoped
to
improve
efficiency
frozen
production
provide
reference
improvement
technology
other
male
animals,
humans.
Deleted Journal,
Journal Year:
2024,
Volume and Issue:
1(1)
Published: April 2, 2024
Abstract
We
hypothesized
that
ram
epididymal
tail
sperm
may
be
efficiently
activated
in
homologous
seminal
plasma
compared
to
tris
and
sperm-TALP.
Eighty
ejaculates
were
collectedfrom
five
healthy
fertile
rams
by
artificial
vagina.
Ejaculates
with
≥
3
mass
motility
70%
initial
score
considered
pooled.
The
was
harvested
two-phase
centrifugation
(A-3000
g,
4
°C,
20
min;
B-3600
30
min).
Sperm
collected
dissecting
into
equal
parts
which
placed
three
small
(35
mm)
petri
dishes
for
activation
(SP),
sperm-TALP
(TP)
buffer
(TR).
quality
assessed
at
0,
24,
48
72
h
of
cold
storage
on
the
basis
motility,
viability,
HOST
acrosomal
integrity.
In
addition
subjective
assessment
integrity
viability
evaluated
using
molecular
florescent
probe
combinations-fluorescein
isothiocyanate
(FITC)
conjugated
peanut
agglutinin
(PNA)
plus
propidium
iodide
(PI)
carboxyflorescene
diacetate
(CFDA)
iodide,
respectively.
Motility,
CFDA
positive
(Viable)
reacted
percentage
significantly
higher
(p
<
0.05)
SP
both
TP
TR
storage.
FITC-PNA
negative
(Intact
acrosomes)
did
also
differ
between
SP,
various
hours
conclusion,
preserved
This
study
provides
an
opportunityto
further
explore
role
cryoprotection
fertilizing
capacity
sperm.