Indian Journal of Animal Sciences, 2022 Acrosome intactness of spermatozoa is the critical factor for establishing sperm reservoir in oviduct and for fertilizing an oocyte. However, frozen thawed spermatozoa tend to show higher proportion of acrosome reacted spermatozoa thereby compromising ...
KATHAN RAVAL +7 more
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EFFECT OF DIFFERENT L-ARGININE CONCENTRATIONS ON IN VITRO BUFFALO SEMEN FERTILIZING POTENTIALS [PDF]
Assiut Veterinary Medical Journal, 2016 Sperm capacitation and acrosome reaction are essential for fertilization. L-Arginine plays an important role in the physiology of spermatozoa and has been shown to enhance their metabolism and maintain their motility.
MONTASER, A., BADR, M.R.
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The testicular form of angiotensin converting enzyme as a marker for human sperm quality assessment [PDF]
Folia Medica, 2023 Introduction: Spermatozoa are rapidly changing cellular structures that are highly dependent on their interaction with the environment. These interactions cause fundamental changes in the spermatozoa’s cells and membrane. All physiological changes
Mina Pencheva +4 more
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Versatile action of picomolar gradients of progesterone on different sperm subpopulations. [PDF]
PLoS ONE, 2014 High step concentrations of progesterone may stimulate various sperm physiological processes, such as priming and the acrosome reaction. However, approaching the egg, spermatozoa face increasing concentrations of the hormone, as it is secreted by the ...
Diego Rafael Uñates +6 more
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Frontiers in Cell and Developmental Biology, 2023 Before fertilization, spermatozoa must undergo calcium-regulated acrosome exocytosis in response to physiological stimuli such as progesterone and zona pellucida.
Cintia C. Vaquer +10 more
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Specific lectin binding sites during in vitro capacitation and acrosome reaction in boar spermatozoa
Italian Journal of Animal Science, 2021 Sperm glycocalyx and plasma membrane undergo outstanding modifications during fertilization. However, it is unclear how in vitro capacitation time and acrosome reaction affect the specific location of boar sperm glycoconjugates.
Laura Robles-Gómez +6 more
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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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Integrated proteomics identifies a dysfunctional acrosomal module associated with impaired acrosome reaction in asthenozoospermia [PDF]
Journal of Men's HealthBackground: Asthenozoospermia, a primary cause of male infertility, is characterized not only by reduced sperm motility, but also by functional impairments, particularly defects in the acrosome reaction.
Andu Zhu, Jie Zhu, Dongdong Jin
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Expression of TRPV1 as A Heat Sensitive Voltage-Dependent Ion Channel and Oxidative Stress in Sperm Samples of Infertile Men with Varicocele: A Case-Control Study [PDF]
Cell Journal, 2022 Objective: Transient receptor potential vanilloid 1 (TRPV1) is a heat-activated nonselective cation channel that playsimportant role in the spermatogenesis, capacitation, acrosome reaction and sperm/oocyte fusion.
Sahar Salahshouri +4 more
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EDC IMPACT: Chemical UV filters can affect human sperm function in a progesterone-like manner
Endocrine Connections, 2017 Human sperm cell function must be precisely regulated to achieve natural fertilization. Progesterone released by the cumulus cells surrounding the egg induces a Ca2+ influx into human sperm cells via the CatSper Ca2+-channel and thereby controls sperm ...
A Rehfeld +5 more
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