Human sperm-zona pellucida interaction is inhibited by an antiserum against a hamster sperm protein. In conclusion, there was a negative relationship between sperm plasma membrane integrity and fertility following AI. Avian sperm-egg interaction: Our findings show that membrane rafts play an important role in multiple functions of chicken sperm. A negative correlation was observed between sperm plasma membrane integrity and fertility. Changes in Lipid Associated with Cryopreservation Cryopreservation affects sperm membrane integrity [ 35 , 36 ]. Capacitation-dependent concentration of lipid rafts in the apical ridge head area of porcine sperm cells.
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Role of Membrane Lipid Fatty Acids in Sperm Cryopreservation

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Advances in Andrology

Sperm with damaged membranes and intact acrosomes [DMe, IA, LM] became less frequent with cattle age and had the lowest rate in the oldest bulls Fig. Fast block to polyspermy: The evaluation of the function of sperm plasma membrane can be applied in detecting semen quality, selecting semen centrifugation, assessing the quality and fertilizability of sex-sorted sperm, improving cryopreservation, and guiding the optimization of intracytoplasmic sperm injection. However, the lipids of the sperm plasma membrane undergo complicated dynamic changes, which may facilitate the capacitation, binding with zona pellucida, acrosome reaction and fusion of the sperm cell with the oocyte. Species-specific bindin receptors on the vitelline envelope are only able to recognize bindin molecules from the same species.
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Characterization of the functions and proteomes associated with membrane rafts in chicken sperm

Proteomic and functional analysis of human sperm detergent resistant membranes. Differential release of soluble and matrix components: Plasma membrane integrity is crucial for sperm survival inside the female reproductive tract to maintain the fertilization capability and the cell's osmotic equilibrium, and acting as a barrier between the intra- and extracellular media Flesh and Gadella, Researchers have found that a protein in the cell membranes of sperm plays a key role in how they find their way to eggs. View at Google Scholar K.
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It is been concluded that higher levels of DHA in postthaw samples of African elephants may be beneficial for cryopreservation in comparison to Asian elephant. This operation was originally generated based on evidence that the profile of partitioned molecules in the liquid-ordered domain of artificial membranes correlates well with its recovery in the DRM fraction [ 50 ]. Molecular mechanisms of fertilization and activation of development. Defects in the sperm acrosome can cause sub-fertility or infertility because they compromise the sperm-oocyte fusion, even though the sperm membrane is fixed to an oocyte in the free zone and fertilization occurs Hafez, Loss of viability is related to membrane leakiness which is induced by sperm phospholipids peroxidation [ 55 , 56 ]. Triton promotes domain formation in lipid raft mixtures.
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Cell membrane for sperm

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