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Participation of phosphofructokinase, malate dehydrogenase and isocitrate dehydrogenase in capacitation and acrosome reaction of boar spermatozoa
(Wiley Blackwell Publishing, Inc, 2017-10)
The aim of this work was to determine the enzymatic activity of phosphofructokinase (PFK), malate dehydrogenase (MDH) and isocitrate dehydrogenase (IDH) in boar spermatozoa and study their participation in bicarbonate-induced ...
Proacrosin/acrosin quantification as an indicator of acrosomal integrity in fresh and frozen dog spermatozoa
(ELSEVIER, 2006)
The scope of the present study was to evaluate the presence and activation of proacrosin/acrosin as a tool to determine the acrosomal status of fresh and frozen/thawed dog spermatozoa. Monoclonal antibody C5F11, directed ...
Analysis of CAPZA3 localization reveals temporally discrete events during the acrosome reaction
(Wiley, 2010-09)
In mammals, the starting point of development is the fusion between sperm and egg. It is well established that sperm fuse with the egg through the equatorial/post-acrosomal region. Apart from this observation and the ...
An intact acrosome is required for the chemotactic response to progesterone in mouse spermatozoa
(Wiley-liss, Div John Wiley & Sons Inc, 2017-04)
Mammalian sperm become fertilization-competent in the oviduct, during a process known as capacitation that involves the acquisition of the ability to exocytose the acrosome but also the chemotactic responses—both of which ...
The acrosome reaction-inducing activity of individual human follicular fluid samples is highly variable and is related to the steroid content
(Oxford University Press, 1992)
In this study, we have evaluated the relationship between the acrosome reaction-inducing activity of individual human follicular fluid samples and their steroid content. Eighteen samples of follicular fluid were obtained ...
Rat caltrin protein modulates the acrosomal exocytosis during sperm capacitation
(Society for the Study of Reproduction, 2008)
Caltrin is a small and basic protein of the seminal vesicle secretion that inhibits sperm calcium uptake. The influence of rat caltrin on sperm physiological processes related to fertilizing competence was studied by ...
Effect of progesterone on acrosome reaction, hypoosmotic swelling test, and DNA stability in human spermatozoa
(Taylor and Francis, 1999)
The association between different sperm parameters, an in vitro effect of progesterone, has not been studied satisfactorily. In this article, the effect of progesterone on acrosome reaction (AR), plasma membrane integrity, ...
Studies related to progesterone-induced hamster sperm acrosome reaction
(1996)
Experiments were designed to characterize the effect of progesterone on the hamster sperm acrosome reaction (AR). Progesterone stimulated exocytosis of previously capacitated spermatozoa in a dose-dependent manner. ...
Transmission electron microscopy for characterization of acrosomal damage after Percoll gradient centrifugation of cryopreserved bovine spermatozoa
(KOREAN SOC VETERINARY SCIENCE, 2011)
The objective of this study was to characterize acrosomal ultrastructure following discontinuous Percoll gradient centrifugation of cryopreserved bovine sperm. Semen was collected from six bulls of different breeds and ...
Role of actin cytoskeleton during mammalian sperm acrosomal exocytosis
(Springer Verlag Berlín, 2016-05-20)
Mammalian sperm require to undergo an exocytotic process called acrosomal exocytosis in order to be able to fuse with the oocyte. This ability is acquired during the course of sperm capacitation. This review is focused on ...