Results 61 to 70 of about 159,047 (161)
ABSTRACT Seminal extracellular vesicles (sEVs) have been proposed as modulators of sperm function, but their exact role remains unclear. Most studies use ejaculated sperm for clarification. This approach has limitations; nevertheless, as ejaculated sperm have already been exposed to their own native sEVs, which hinders the assessment of their specific ...
Patricia Panales +7 more
wiley +1 more source
Cryopreservation Induces Acetylation of Metabolism-Related Proteins in Boar Sperm
Cryodamage affects the normal physiological functions and survivability of boar sperm during cryopreservation. Lysine acetylation is thought to be an important regulatory mechanism in sperm functions.
Xiang Yuan +9 more
core +1 more source
The purpose of this study was to examine the effects of taurine and vitamin E on sperm characteristics damaged by bromopropane (BP) in pig. We evaluated toxicity of BP on viability, membrane integrity and mitochondrial activity of spermatozoa. 1-BP (0, 2.
Seunghyung Lee +4 more
doaj +1 more source
Restoration of Motility in Acrosome‐Reacted Boar Spermatozoa Induced by the Ionophore 4‐Br‐A23187
ABSTRACT The acrosome reaction (AR) is a calcium‐dependent exocytotic event required for successful fertilization. Calcium ionophores are commonly used to induce AR in vitro; however, this treatment is associated with a significant loss of sperm motility. The aim of this study was to evaluate the recovery of motility in boar spermatozoa after ionophore‐
David Martín‐Hidalgo +3 more
wiley +1 more source
ABSTRACT While lipophilic antioxidants such as flavonols may improve the preservation capacity of sperm at 17°C, their low stability and bioavailability can reduce their biological effectiveness. Encapsulation strategies have been proposed to improve the delivery and cellular availability of hydrophobic antioxidants.
Antonio Sergio Varela Junior +6 more
wiley +1 more source
Біотехнологічні методи оцінки ефективності кріоконсервації сперми кнурів
Aim. Estimate boar semen for suitability to cryopreservation using informative biotechnological methods (thermoresistant probe, heat resistance test) to replenish genetic resources of Animal Gene bank Institute of Animal Breeding and Genetics n.
S. I. Kovtun +4 more
doaj +1 more source
Frozen Boar Semen Can Be Successfully Stored at −80°C, Reducing Need for LN2 Storage Containers
ABSTRACT This study explores alternative freezing approaches aimed at reducing or avoiding the use of liquid nitrogen (LN2) to store boar semen. Sperm‐rich fractions from three boars were pooled and frozen in 0.25‐ and 0.5‐mL straws using four different protocols: a conventional method (Control; LN2 vapours followed by immersion and storage in LN2 ...
A. Lopez‐Jara +7 more
wiley +1 more source
Comparative Susceptibility of Donkey and Horse Sperm to Liquid‐Storage Temperature
ABSTRACT Preservation protocols for donkey sperm are based on those developed for horses, despite potential interspecific differences in cooling tolerance. This study compared horse and donkey sperm during long‐term storage at 5°C and 17°C. Ejaculates from four stallions and four jacks (n = 16) were centrifuged, resuspended in skimmed milk‐based ...
Pilar Vallejo‐Soto +9 more
wiley +1 more source
Sperm Recovery and Evaluation in Domestic Species: Challenges and Current Practices
ABSTRACT Semen collection is a key step in the development of assisted reproductive technologies (ARTs) in domestic mammals, as the collection method determines the functionality and fertility of the sperm. The artificial vagina or manual collection yields ejaculates similar to those obtained during natural mating, although they require prior training ...
A. J. Soler +8 more
wiley +1 more source
ABSTRACT Cryopreservation of stallion semen remains suboptimal, with approximately one‐third of stallions producing semen that is poorly tolerant to freezing. As optimization of pre‐freezing procedures may improve post‐thaw sperm quality, this study evaluated the effect of different equilibration times before freezing on the post‐thaw quality of ...
Hamed Farnia +9 more
wiley +1 more source

