Results 31 to 40 of about 24,732 (236)
Evaluation of rooster semen quality using CBB dye based staining method
The acrosome cap allows sperm to penetrate the egg membrane and produce male pronuclei within female chicken eggs, facilitating successful fertilization.
Sung Woo Kim +4 more
doaj +1 more source
The biochemistry of the acrosome reaction [PDF]
The binding of the spermatozoon to the oocyte zona pellucida (ZP) occurs via specific receptors localized over the anterior head region of the spermatozoon. Zona pellucida binding stimulates the spermatozoa to undergo the acrosome reaction resulting in the release of hydrolytic enzymes and in the exposure of new membrane domains, both of which are ...
H, Breitbart, B, Spungin
openaire +2 more sources
Spermatozoa sexing requires a diluent that can protect and provide an optimal environment to maintain the quality of spermatozoa. This study targets to determine the effectiveness of adding sucrose to tris-egg yolk diluent on the sperm quality of the ...
Yendraliza Yendraliza +6 more
doaj +1 more source
Genes Regulating Spermatogenesis and Sperm Function Associated With Rare Disorders
Spermatogenesis is a cell differentiation process that ensures the production of fertilizing sperm, which ultimately fuse with an egg to form a zygote.
Emma Linn +4 more
doaj +1 more source
This study was designed to investigate the characteristics of acrosomal changes during capacitation of bovine spermatozoa in relationship to in vitro fertility of individual bulls.
Z. Reckova +3 more
doaj +1 more source
Autophagy is critical to acrosome biogenesis and mitochondrial quality control, but the underlying mechanisms remain unclear. The ubiquitin ligase Nrdp1/RNF41 promotes ubiquitination of the mitophagy-associated Parkin and interacts with the pro ...
Zi-Yu Luo +4 more
doaj +1 more source
Condensed Mitochondria Assemble Into the Acrosomal Matrix During Spermiogenesis
Mammalian spermatogenesis is associated with the transient appearance of condensed mitochondria, a singularity of germ cells with unknown function.
Mindong Ren +11 more
doaj +1 more source
An Overview of The Globozoospermia as A Multigenic Identified Syndrome [PDF]
Acrosome plays an integral role during fertilization and its absence in individuals with globozoospermia leads to failure of in vitro fertilization (IVF) and oocyte activation post-intracytoplasmic sperm injection (ICSI).
Parastoo Modarres +2 more
doaj +1 more source
Ubiquitination Regulates the Morphogenesis and Function of Sperm Organelles
It is now understood that protein ubiquitination has diverse cellular functions in eukaryotes. The molecular mechanism and physiological significance of ubiquitin-mediated processes have been extensively studied in yeast, Drosophila and mammalian somatic
Nobuhiro Nakamura
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A mechanism for differential release of acrosomal enzymes during the acrosome reaction [PDF]
To study the organization of fertilization enzymes in the sperm acrosome, we isolated and characterized two physicochemically distinct acrosomal fractions of guinea-pig spermatozoa. A soluble fraction contained the 25,000-Mr acrosomal autoantigen, AA1, and most of the acrosomal hyaluronidase and dipeptidyl peptidase II activity. A particulate fraction,
D M, Hardy +3 more
openaire +2 more sources

