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Sperm biology of merluccius australis: sperm structure, semen characteristics and effects of ph, temperature and osmolality on sperm motility
(ELSEVIER SCIENCE BV, 2013)
In this article we describe basic aspects of the sperm biology of Merluccius australis, in particular assessing the effects of pH (6, 8 and 10), temperature (4, 10 and 15 degrees C) and osmolality (922 mOsm/kg, 822 mOsm/kg, ...
Integrity of the plasma membrane, the acrosomal membrane, and the mitochondrial membrane potential of sperm in Nelore bulls from puberty to sexual maturity
(2016-01-01)
This study evaluated the plasma membrane integrity, acrosomal membrane integrity, and mitochondrial membrane potential of Nelore bull sperm from early puberty to early sexual maturity and their associations with sperm ...
Sperm motility and lipid composition in internally fertilizing ocellate river stingray Potamotrygon motoro
(Elsevier B.V., 2019-05-01)
All extant groups of Elasmobranches have internal fertilization and the structure of the male reproductive organs is very specific: sperm passes from the internal organs via the cloaca, but the male copulating organ (clasper) ...
Dissecting EPPIN protease inhibitor domains in sperm motility and fertilizing ability: Repercussions for male contraceptive development
(2021-12-01)
EPPIN (epididymal protease inhibitor) is a mammalian conserved sperm-binding protein displaying an N-terminal WFDC (whey-acidic protein four-disulfide core) and a C-terminal Kunitz protease inhibitor domains. EPPIN plays ...
Effect of hydrogen peroxide on thawed ovine sperm motility
(Brazilian Coll Animal Reproduction, 2014-04-01)
Oxidative stress, resulting from excessive levels of ROS in semen, has a negative impact on functional parameters and sperm fertility. In this study we examined the influence of the oxidative stress induced by hydrogen ...
Effect of hydrogen peroxide on thawed ovine sperm motility
(2014-01-01)
Oxidative stress, resulting from excessive levels of ROS in semen, has a negative impact on functional parameters and sperm fertility. In this study we examined the influence of the oxidative stress induced by hydrogen ...
Spermatozoa characterization in the one-sided livebearing Jenynsia multidentata (Cyprinodontiformes: Anablepidae)
(Universidad de Costa Rica, 2014)
The galectin-1-glycan axis controls sperm fertilizing capacity by regulating sperm motility and membrane hyperpolarization
(Federation Amer Soc Exp Biol, 2015-07)
Lectin-glycan recognition systems play central roles in many physiologic and pathologic processes. Here, we identified a role for galectin-1 (Gal-1), a highly conserved glycan-binding protein, in the control of sperm ...
In vivo sperm penetration and in vitro sperm migration tests
(Elsevier, 1973)
Two standardized techniques for in vivo and in vitro clinical evaluation of sperm migration are described. The in vivo test consists of postcoital sperm recovery, from the cervical canal and from the uterine cavity, with ...