Results 141 to 150 of about 12,113 (180)
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Influence of progesterone on boar sperm capacitation
Journal of Endocrinology, 1995Abstract This research investigates the effect of progesterone (P4) on boar sperm capacitation. Ejaculated spermatozoa were washed and incubated under capacitating conditions with or without P4. At different times of incubation samples of sperm were exposed to solubilized zonae pellucidae (ZP) and the degree of capacitation was evaluated by the
BARBONI, Barbara +2 more
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Effect of exogenous sperm capacitation inducers on stallion sperm
TheriogenologyAlthough under appropriate laboratory conditions, sperm from different mammalian species can be capacitated in vitro, the optimal conditions for sperm capacitation in the stallion have been elusive. This study evaluated the effect of different capacitating inducers in Whitten and Tyrode media and assessed their impact on capacitation-related factors ...
Fernanda Fuentes +7 more
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Capacitation-Associated Glycocomponents of Mammalian Sperm
Reproductive Sciences, 2016Mammalian fertilization is a series of events that are mostly carbohydrate mediated. The male gamete glycocomponents are extensively synthesized and modified during sperm development and sperm transport in the reproductive tracts. Freshly ejaculated mammalian sperm are required to undergo capacitation, which takes place in the female reproductive ...
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Influence of the Oviduct on Sperm Capacitation in the Rabbit ,
Fertility and Sterility, 1970In an effort to evaluate the influence of the oviduct on sperm capacitation in vitro fertilization of freshly-ovulated rabbit ova was used to assay the fertilizing ability of spermatozoa. New Zealand white rabbits were used. 9 1/2 hours after injection of human chorionic gonadotrophin half the animals had fimbriae of both tubes resected; 2 hours ...
H M, Seitz +3 more
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[Advances in sperm capacitation].
Zhonghua nan ke xue = National journal of andrology, 2003Sperm must be capacitated before sperm-ovum fusion. Capacitation was once considered as hyperactivation. But now many investigators thought that capacitation wasn't equal to hyperactivation, and that sperm hyperactivation might be a moiety of capacitation or the result of capacitation.
Jin-Chun, Lu +3 more
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The role of small molecules in sperm capacitation
Theriogenology, 2008Mammalian spermatozoa released into an appropriate environment in vitro can capacitate but then may undergo spontaneous acrosome reactions. Since successful sperm interaction with the zona pellucida of an unfertilized oocyte requires an intact sperm plasma membrane, spontaneous acrosome loss is biologically undesirable because it renders spermatozoa ...
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Sperm capacitation and primary sex ratio
Medical Hypotheses, 2001The observations of many years enabled determination of maternal factors which influence the sex of progeny. Factors on side of the father have long been neglected, even though the sex of progeny depends on the sex chromosome in fertilizing spermatozoon.
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Biochemistry of sperm capacitation
International Journal of Biochemistry, 1983openaire +2 more sources
Acrosomal alkalinization occurs during human sperm capacitation
Molecular Human Reproduction, 2022Alberto Darszon +2 more
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