Longitudinal section of a sperm head showing the perforatorium (p), acrosomal
vesicle (a), and extra-acrosomal
The ejaculates use here showed progressive motility >70%, viable cells >70%, normal spermatozoa >80% and normal acrosomal
Our results indicate that B[^]P can disrupt testosterone production in Leydig cells, which may ultimately lead to a decrease in sperm quality in the epididymis via reduced levels of sperm motility, acrosomal
integrity, and fertility-related proteins such as ADAM3 (Nishimura et al.
Relevance of glycosylation of human zona pellucida glycoproteins for their binding to capacitated human spermatozoa and subsequent induction of acrosomal
Along the outer edge of the nucleus runs a nuclear canal, which contains the acrosomal
filament in its anterior part (Figs.
The anterior head of the mature spermatozoon is covered by an acrosomal
membrane, which was derived from the spermatid's Golgi apparatus during spermiogenesis.
The mean ([+ or -]SE) of mass activity, individual motility (%), viability (%), acrosomal
integrity (%), and membrane intact spermatozoa (%) were 2.
Guaninenucleotide exchange factors (RAPGEF3/RAPGEF4) induce sperm membrane depolarization and acrosomal
exocytosis in capacitated stallion sperm.
Artificial insemination is one of the important procedures, which causes the widespread propagation of semen, limiting the spread of sexually transmitted diseases, and chiefly facilitating genetic improvement programmes  Nevertheless, cryopreservation generates sublethal injury to the sperm due to chemical, osmotic, thermal, and mechanical stresses, which may result in loss of viability, motility, damage of desoxyribonucleic acid (DNA), destruction of acrosomal
and plasma membrane .
El presente estudio fue realizado para determinar el efecto de la jalea real (JR) sobre la motilidad, viabilidade integridad acrosomal
de espermatozoides durante la etapa de incubacion post--descongelado.
It was demonstrated in the abalone that the sperm acrosomal
lysin binds to the vitelline envelop receptor and creates a hole through which sperm could pass and fuse with the egg cell membrane, and this occurs by a nonenzymatic species-specific mechanism (Lewis et al.
2 mg/kg/day vinclozolin increases the amount of morphologically abnormal spermatozoa, mostly due to nuclear and acrosomal
defects (Veeramachaneni et al.