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Motility potential of macaque epididymal sperm: the role of protein phosphatase and glycogen synthase kinase-3 activities
Monkey spermatozoa enzymes caput caudal
2009/2/18
Human and monkey ejaculated sperm contain protein phosphatase-1 (PP1), PP1 inhibitor 2 (12), and glycogen synthase kinase-3 (GSK-3). Inhibition of ejaculated human sperm protein phosphatase (PP) a...
Hyaluronic acid enhances the zona pellucida-induced acrosome reaction of macaque sperm
Macaca fascicularis semen capacitation fertilization
2009/2/17
Hyaluronic acid (HA) not only surrounds the zona pellucida as part of the cumulus matrix but also is present throughout the zona pellucida and the perivitelline space of many mammalian oocytes. Ho...
Effects of glucose and other energy substrates on the hyperactivated motility of macaque sperm and the zona pellucida-induced acrosome reaction
glucose hyperactivated motility macaque sperm
2009/2/13
Energy sources in sperm capacitation media have various effects on mammalian sperm and are required for stimulation of hyperactivated motility and/or acrosome reactions in some species. The presen...
Importance of glycosylation and disulfide bonds in hyaluronidase activity of macaque sperm surface PH-20
Enzyme activity glycoprotein protein structure deglycosylation
2008/12/30
PH-20 is a glycoprotein located on the surface of the sperm plasma membrane and on the inner acrosomal membrane. The best understood function of sperm surface PH-20 is its hyaluronidase activity, ...
Calpain and calpastatin are located between the plasma membrane and outer acrosomal membrane of cynomolgus macaque spermatozoa
Calpain calpastatin plasma membrane outer acrosomal membrane cynomolgus macaque spermatozoa
2008/12/25
Mammalian sperm must undergo an acrosome reaction prior to penetration of the zona pellucida and subsequent fusion with an oocyte. Sperm gain the capability to acrosome react after a period of capac...
Changes in Membrane Lipid Order With Capacitation in Rhesus Macaque（Macaca mulatta）Spermatozoa
Primate sperm merocyanine 540 annexin-V tyrosine phosphorylation
2008/12/24
Lipophilic fluorescent dye merocyanine 540 is believed to stain cell membranes with increasing affinity as the lipid components become more disordered and has been associated with changes in m...
Hyperactivated Motility in Rhesus Macaque（Macaca mulatta）Spermatozoa
Primate sperm capacitation cyclic adenosine monophosphate caffeine
2008/12/24
Macaque spermatozoa can be capacitated according to a defined protocol and exhibit hyperactivated motility similar to that described in other species. The aim of this study was to create a method...
Lignosulfonic Acid Blocks In Vitro Fertilization of Macaque Oocytes When Sperm Are Treated Either Before or After Capacitation
Contraception fucoidin microbicide polysulfonation zona pellucida
2008/12/16
Lignin-derived macromolecules (LDMs) are biologically active compounds that affect a variety of cell-to-cell interactions including the inhibition of fertilization and embryo development in a number o...
Importance of glycosylation and disulfide bonds in hyaluronidase activity of macaque sperm surface PH-20
Importance glycosylation disulfide bonds hyaluronidase activity macaque sperm surface PH-20
2008/12/2
PH-20 is a glycoprotein located on the surface of the sperm plasma membrane and on the inner acrosomal membrane. The best understood function of sperm surface PH-20 is its hyaluronidase activity, wh...