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Different cell types—say, heart, liver, blood, and sperm cells—possess characteristics that help them carry out their unique jobs in the body. In general, those characteristics are hard-wired. Without...
A newly identified stem cell regulator enables lifelong sperm production（图）
干细胞调节器 干细胞更新因子 细胞工程
2023/7/10
Unlike women, who are born with all the eggs they’ll ever have, men can continue to produce sperm throughout their adult lives. To do so, they require a constant renewal of spermatogonial stem cells, ...
Effects of chilled storage and pH of activating solution on different motility parameters in burbot (Lota lota) sperm
short-term storage activation Lota lota sperm analysis CASA parameters
2018/11/23
The effects of a simple saline solution prepared using two different pH (4.4 and 8.5) on sperm motility in burbot were investigated. Results were recorded during a 96-hour chilled storage (4°C) in 24-...
Effect of thawing method on bull sperm survival in ejaculates frozen in 4 ml and 8 ml volumes
bovine semen large volumes semen processing sperm quality parameters
2018/11/23
The aim of this study was to evaluate the effect of different thawing protocols (slow (P1), medium (P2), and fast (P3)) on percentage of motile sperm (MOT) and percentage of sperm cells with intact me...
Rival sperm and choosy eggs:FSU researcher finds that when sperm compete,eggs have a choice（图）
Rival sperm choosy eggs FSU researcher sperm compete eggs have a choice
2017/11/23
The delicately mannered dance between discerning eggs and vying sperm is more complicated than scientists once believed, and it may hold secrets about the evolution of new species.In a paper published...
Effects of Zearalenone, α-Zearalenol, and Genistein on Boar Sperm Motility In Vitro
pig spermatozoa environmental oestrogens motility CASA cluster analysis
2018/3/5
Genistein (GEN) and zearalenone (ZEA), environmental oestrogens commonly present in feedstuff for pigs,
are known for their effects on reproductive functions. The aim was to verify the in vitro effec...
Choice of staining technique affects the morphological assessment of epididymal feline sperm
Felis catus cat spermatozoa morphology eosin-nigrosin stain Giemsa-Wright stain
2016/11/11
Morphological examination of spermatozoa remains a valuable tool for determining the quality of feline sperm for cryopreservation and/or for use in artificial insemination. Numerous staining technique...
Protective effects of the antioxidants curcumin, ellagic acid and methionine on motility, mitochondrial transmembrane potential, plasma membrane and acrosome integrity in freeze-thawed Merino ram sperm
curcumin ellagic acid methionine
2016/1/29
The aim of this study was to determine the effects of curcumin, ellagic acid and methionine on sperm parameters following the freeze-thawing of Merino ram semen. Ejaculates were collected via an artif...
Comparison of Metformin and Simvastatin Administration in Women With Polycystic Ovary Syndrome Before Intra-Cytoplasmic Sperm Injection Cycle: A Prospective, Randomized, Clinical Trial Study
Metformin Simvastatin Polycystic Ovary Syndrome Intracytoplasmic Sperm Injection
2015/12/29
Background: Drugs administration as a pretreatment regiment before ICSI cycle in PCOs patients could enhance the success rate.
Context: Air pollution is common in all countries and affects reproductive functions in men and women. It particularly impacts sperm parameters in men. This meta-analysis aimed to examine the impact o...
Relationships between selected sperm characteristics and fertilisation success in the beluga sturgeon,Huso huso (Linnaeus, 1758)
sperm quality parameters fertilisation hatching Huso huso
2015/10/9
We examined the relationships between a number of sperm characteristics (motility, concentration and pH) and sperm fertility (egg fertilisation and hatching rate) in 10 mature females and four mature ...
Effect of Neem Oil on Sperm Mitochondrial Activity
Normozoospermia Neem Oil Sperm Mitochondrial Activity
2015/7/15
It is a known fact that neem oil has some effect on motility of sperm. Motility of sperm depends on mitochondrial activity present in mid-piece of sperm. In the present study, the mitochondrial activi...
Male pronucleus formation after ICSI: effect of oocyte cysteine or sperm Triton X-100 treatments
porcine assisted reproductive technology
2015/7/7
While no cleavage was observed in the
CYS group, no significant differences in the cleavage rate were observed between control (21.3%) and TX (10.5%)
groups. In summary, and under our conditions, ...
Association of heat shock protein 70 with motility of frozen-thawed sperm in bulls
gene expression cryopreservation
2015/7/7
Heat shock protein 70 (HSP70) is considered as a gene which affects semen quality traits. The present study attempted to investigate the relationship between the HSP70 expression level and motility of...
Sperm morphology, ultrastructure, and motility in pikeperch Sander lucioperca (Percidae, Teleostei) associated with various activation media
spermatozoa motility spermatozoa velocity calcium
2015/7/3
Spermatozoa morphology, ultrastructure, and spermatozoa motility traits were studied in pikeperch (Sander lucioperca) after activation in various media (AM 1 ?45mM NaCl, 5mM KCl, 20mM Tris, pH 8.5; AM...