Results 21 to 30 of about 12,113 (180)
Adhesion to oviduct glycans regulates porcine sperm Ca2+ influx and viability.
PLoS ONE, 2020 Before fertilization, sperm bind to epithelial cells of the oviduct isthmus to form a reservoir that regulates sperm viability and capacitation. The sperm reservoir maintains optimum fertility in species, like swine, in which semen deposition and ...
Sergio A Machado +4 more
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Capacitation promotes a shift in energy metabolism in murine sperm
Frontiers in Cell and Developmental Biology, 2022 In mammals, sperm acquire fertilization ability after a series of physiological and biochemical changes, collectively known as capacitation, that occur inside the female reproductive tract. In addition to other requirements, sperm bioenergetic metabolism
Maximiliano Tourmente +5 more
doaj +1 more source
Influence of in vitro capacitation time on structural and functional human sperm parameters
Asian Journal of Andrology, 2020 A cascade of dramatic physiological events is linked to the sperm acrosome reaction and binding to the oocyte's zona pellucida during human sperm capacitation.
Paula Sáez-Espinosa +7 more
doaj +1 more source
Seminal CD38 Enhances Human Sperm Capacitation through Its Interaction with CD31. [PDF]
PLoS ONE, 2015 Human sperm have to undergo a maturational process called capacitation in the female reproductive tract. Capacitation confers upon the sperm an ability to gain hypermotility and undergo acrosome reaction.
Byung-Ju Kim +4 more
doaj +1 more source
Cells, 2022 Mammalian sperm differ widely in sperm morphology, and several explanations have been presented to account for this diversity. Less is known about variation in sperm physiology and cellular processes that can give sperm cells an advantage when competing ...
Ester Sansegundo +2 more
doaj +1 more source
Bio-Protocol, 2021 Mammalian sperm cells are not capable of fertilizing an egg immediately after ejaculation; instead, they must gradually acquire the capacity to fertilize while they travel inside the female reproductive tract.
Lukas Ded, Jean- Chung
doaj +1 more source
Cells, 2021 Capacitation drives sperm biophysical and biochemical changes for sperm-oocyte interactions. It is a well-known fact that the molecular complex arylsulfatase A (ARSA), hyaluronidase sperm adhesion molecule 1 (SPAM1), and heat shock protein 2 (HSPA2 ...
María José Gómez-Torres +6 more
doaj +1 more source
Expression of cystatin C in the female reproductive tract and its effect on human sperm capacitation
Reproductive Biology and Endocrinology, 2018 Background Cystatin C (CST3), a cysteine protease inhibitor in seminal plasma, is expressed in animal uteri. However, its expression in the human female reproductive tract and its effect on human sperm capacitation are unclear.
Robert Kuo-Kuang Lee +7 more
doaj +1 more source
Biology, 2021 This work sought to address whether the presence of exogenous bicarbonate is required for pig sperm to elicit in vitro capacitation and further progesterone-induced acrosome exocytosis. For this purpose, sperm were either incubated in a standard in vitro
Bruna Resende Chaves +7 more
doaj +1 more source
Effect of Astaxanthin on Human Sperm Capacitation [PDF]
Marine Drugs, 2013 In order to be able to fertilize oocytes, human sperm must undergo a series of morphological and structural alterations, known as capacitation. It has been shown that the production of endogenous sperm reactive oxygen species (ROS) plays a key role in causing cells to undergo a massive acrosome reaction (AR).
DONA', GABRIELLA +9 more
openaire +4 more sources