Results 21 to 30 of about 2,059,461 (220)
Journal of Animal Reproduction and Biotechnology, 2022 This study investigated the influence of sodium bicarbonate (NaHCO3) and progesterone on acrosome reaction and proportion of polyunsaturated fatty acid (PUFA) composition boar sperm.
Choon-Keun Park, Sang-Hee Lee
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The biochemistry of the acrosome reaction [PDF]
Molecular Human Reproduction, 1997 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
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The Modulation of Functional Status of Bovine Spermatozoa by Progesterone
Animals, 2021 The aim of this study is to identify the effects of progesterone (PRG) on the capacitation and the acrosome reaction in bovine spermatozoa. The fresh sperm samples were incubated with and without capacitation inductors (heparin, dibutyryl cyclic ...
Vitaly Denisenko +5 more
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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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CaMKIIalpha interacts with multi-PDZ domain protein MUPP1 in spermatozoa and prevents spontaneous acrosomal exocytosis [PDF]
, 2009 The success of acrosomal exocytosis, a complex process with a variety of inter-related steps, relies on the coordinated interaction of participating signaling molecules.
Borth, Heike +5 more
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STUDIES OF LYSOPHOSPHOLIPIDS RELATED TO THE HAMSTER SPERM ACROSOME REACTION IN-VITRO [PDF]
, 1993 Phospholipase A2 and lysophospholipids have been implicated in the mammalian sperm acrosome reaction. In this study we further investigated the role of this enzyme and lysophospholipids on the acrosome reaction of hamster spermatozoa.
LLANOS, MN, RIFFO, MS, MORALES, P
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