Results 31 to 40 of about 18,364 (206)
Animal, 2018 Fertilization is an intricate cascade of events that irreversibly alter the participating male and female gamete and ultimately lead to the union of paternal and maternal genomes in the zygote.
P. Sutovsky
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Regulating the acrosome reaction
The International Journal of Developmental Biology, 2008 The acrosome reaction is a secretory event that must be completed by the sperm of many animal species prior to fusion with eggs. In mammals, exocytosis in triggered by ZP3, a glycoprotein component of the egg pellucida, following gamete contact. ZP3 promotes a sustained influx of Ca2+ into sperm that is necessary for the acrosome reaction.
Florman, Harvey M. +2 more
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AnimalsThe influence of sericin supplementation and chilling temperatures (4 and 15 °C) on the short-term storage quality and fertility of rabbit semen was assessed over 72 h of storage.
Sanan Raza +5 more
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Analysis of ejaculate parameters and sperm morphology in roosters of initial laying strains
Czech Journal of Animal ScienceThe aim of this study was to evaluate the influence of laying hybrid lines of domestic fowl (Gallus gallus f. domestica) and their age on ejaculate parameters in roosters.
Ladislav Máchal +6 more
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Oocyte–cumulus cell interaction: a key factor in early embryo development
Biological Reviews, EarlyView.ABSTRACT The evaluation of oocyte competence is a fundamental step in achieving successful outcomes following assisted reproduction techniques (ART). At present, however, conventional oocyte maturation assessment is carried out by morphological observation, which is a subjective method that does not consider molecular features.
Marc Torres‐Garrido +2 more
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Biological Reviews, EarlyView.ABSTRACT Heat stress (HS) is an increasing threat to male reproductive health, disrupting spermatogenesis through complex and interdependent cellular responses within the seminiferous epithelium. Although excessive reactive oxygen species (ROS) production is a hallmark of HS, ROS also act as central regulators of cell fate decisions beyond their role ...
Ribrio Ivan Tavares Pereira Batista
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Practical use of bioenergetic evaluation of sire-bulls with different quality of semen production
BIO Web of Conferences, 2021 For modern cattle industry, it is very important to evaluate bull-sires of different breeds by semen quality. The relevance of this problem arises in the context of development of artificial insemination technologies and biotechnology, the increasing ...
Samusenko Ludmila +3 more
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Food Safety and Health, EarlyView.Fenugreek and stevia extracts protect against dexamethasone‐induced testicular damage in male rats by enhancing antioxidant defenses, improving sperm quality, and restoring hormonal balance, highlighting their potential as natural therapeutics for preventing corticosteroid‐induced reproductive toxicity.
Mosab Gad +3 more
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THE ACROSOME—LYSOSOME RELATIONSHIP [PDF]
Reproduction, 1975 A.R.C. Unit of Reproductive Physiology and Biochemistry, 307 Huntingdon Road, Cambridge CB3 0JQ (Received 21st November 1974) Using histochemical techniques Mancini et al. (1964) established that hyaluronidase, a lysosomal enzyme, is localized in the acrosomes of bull spermatozoa.
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Correlation of sperm acrosome integrity rate with semen parameters and in vitro fertilization outcomes [PDF]
Journal of Men's HealthBackground: This study aimed to evaluate the application value of sperm acrosome integrity rate in male fertility assessment, its impact on in vitro fertilization (IVF) outcomes, and its predictive value for low IVF fertilization rates.
Lin Yu +6 more
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