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Associations between seminal plasma osteopontin level and sperm motility in infertile men with asthenozoospermia. [PDF]
Front Endocrinol (Lausanne)Zhang P +5 more
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Seminal vesicle protein caCA12 in Corydoras aeneus inhibits sperm motility for sperm drinking.
J Exp BiolYoshida J +11 more
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, 2019 This module introduces equations related to oxygen diffusion in the context of understanding the relationship between oxygen needs and metabolism. It is intended for an introductory biology audience.
Gross, Lou +2 more
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Regulation of Mammalian Sperm Motility
Archives of Andrology, 1989The physiological regulation of sperm motility has become more amendable to investigation since the demonstration that cAMP and calcium play a role in modulating the functioning of the flagellar axoneme. Although the external triggering mechanisms that initiate motility and capacitation are still unknown, evidence supports a modification of the calcium
K S Kanous
exaly +3 more sources
Effects of indoleamines on sperm motility in vitro [PDF]
Human Reproduction, 1992 Indoleamines are products of the pineal gland and are postulated to play an antigonadotrophic role in the reproductive system of mammals. In humans, indoleamines have been localized in tissue fluids such as plasma, serum and cerebrospinal fluid. Because indoleamines exhibit antigonadotrophic properties, the authors examined whether these agents cause ...
Alagöz, Meryem +6 more
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Pathophysiology of sperm motility
Frontiers in Bioscience, 2006Mammalian spermatozoa acquire the ability to swim during their transit from the testis to the oviduct under the control of several external and intracellular factors. These factors play also a pivotal role in regulating acquisition of hyperactivated motility and during the process of chemotaxis. This review summarizes the involvement of such factors in
LUCONI, MICHAELA +2 more
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Biological Reviews, 2008
AbstractThe flagellosperm of insects, although following a general ground plan, exhibit considerable variation in morphology and ultrastructure across taxa, consistent with a history of rapid and divergent evolution. Sperm competition, which occurs when sperm of two or more males compete for the fertilization of a female’s ova, has been recognized as a
Michael, Werner, Leigh W, Simmons
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AbstractThe flagellosperm of insects, although following a general ground plan, exhibit considerable variation in morphology and ultrastructure across taxa, consistent with a history of rapid and divergent evolution. Sperm competition, which occurs when sperm of two or more males compete for the fertilization of a female’s ova, has been recognized as a
Michael, Werner, Leigh W, Simmons
openaire +2 more sources
Hyperactivated Motility in Sperm
Reproduction in Domestic Animals, 2003ContentsHyperactivation is a movement pattern seen in sperm at the site and time of fertilization in mammals. It may be critical to the success of fertilization, because it enhances the ability of sperm to detach from the wall of the oviduct, to move around in the labyrinthine lumen of the oviduct, to penetrate mucous substances and, finally, to ...
S S, Suarez, H-C, Ho
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Andrologia, 2009
To provide an alternative to presently available subjective ways of measuring sperm motility which often yield inconsistent data, we devised a method for determining sperm motile efficiency with it one can express objectively the amount of active sperm movement.
N, Ishii, S, Mitsukawa, M, Shirai
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To provide an alternative to presently available subjective ways of measuring sperm motility which often yield inconsistent data, we devised a method for determining sperm motile efficiency with it one can express objectively the amount of active sperm movement.
N, Ishii, S, Mitsukawa, M, Shirai
openaire +2 more sources