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Prevention of fertilization by exposure of hamster eggs to soluble acrosin [PDF]
, 1977 Fink, Edwin +3 more
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Role of the oviduct in sperm capacitation
Theriogenology, 2007Following insemination of spermatozoa pre-ovulation, the mammalian oviduct ensures, by the formation of a functional sperm reservoir (SR), that suitable (low) numbers of viable and potentially fertile spermatozoa are available for fertilization at the ampullary isthmic junction (AIJ).
Heriberto Rodriguez-Martinez
exaly +3 more sources
Nature, 1970
THE capacitation of spermatozoa is established as a prerequisite to fertilization in mammals1,2. Presumably the sperm undergoes some morphological or physiological change (or both) while in contact with female reproductive tissues, and it is only after this “capacitation” that the mammalian sperm can make contact with and penetrate the egg surface3–5 ...
C A, Shivers, J M, James
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THE capacitation of spermatozoa is established as a prerequisite to fertilization in mammals1,2. Presumably the sperm undergoes some morphological or physiological change (or both) while in contact with female reproductive tissues, and it is only after this “capacitation” that the mammalian sperm can make contact with and penetrate the egg surface3–5 ...
C A, Shivers, J M, James
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Sperm capacitation in the porcine oviduct
Animal Reproduction Science, 2004In vitro studies suggests that sperm capacitation occurs in the sperm reservoir (SR) of the pig, with spermatozoa progressing towards the ampullary-isthmic junction (AIJ) around ovulation as a consequence of capacitation/hyperactivation. In contrast, in vivo studies are scarce.
Paisan Tienthai +2 more
exaly +3 more sources
The sperm proteasome during sperm capacitation and fertilization
Journal of Reproductive Immunology, 2009The 26S proteasome is a multi-subunit protease specifically targeting ubiquitinated proteins. A consensus has emerged from studies by multiple laboratories on the role of sperm-borne proteasomes in human, mouse, pig, bovine, ascidian and echinoderm fertilization.
Shawn, Zimmerman, Peter, Sutovsky
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The ‘Capacitation’ of the Mammalian Sperm
Nature, 1952IT was shown recently1 that sperms injected into the periovarian sac of the rat after ovulation did not begin to enter the eggs until four or five hours later. In the rabbit, too, sperms introduced into the Fallopian tubes shortly after ovulation seldom penetrated the eggs; but if sperms Were introduced a few hours before ovulation, the majority of the
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Requirements for Capacitation of Rabbit Sperm
Nature, 1968THE need for capacitation of rabbit sperm has been well documented1–3, but the requirements for the production of this phenomenon are still unclear. Capacitation has not been achieved in vitro in a defined media, and partial Capacitation occurs in uterine fluid and beta-amylase solutions4.
C E, Hamner, N J, Sojka
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Sperm Capacitation and Acrosome Reaction in Mammalian Sperm
2016Physiological changes that endow mammalian sperm with fertilizing capacity are known as sperm capacitation. As part of capacitation, sperm develop an asymmetrical flagellar beating known as hyperactivation and acquire the ability to undergo the acrosome reaction. Together, these processes promote fertilizing competence in sperm. At the molecular level,
Cintia, Stival +5 more
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Factors Regulating Sperm Capacitation
Systems Biology in Reproductive Medicine, 2010Capacitation is broadly defined as the functional modifications rendering sperm competent to fertilize, encompassing the ability of the sperm to bind the zona pellucida and subsequently undergo the acrosome reaction, hyperactivated motility, and the capacity to fuse with the oocyte.
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