Results 31 to 40 of about 12,113 (180)
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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BMC Genomics, 2018 Background Capacitation, a prerequisite for oocyte fertilization, is a complex process involving series of structural and functional changes in sperms such as membrane modifications, modulation of enzyme activities, and protein phosphorylation.
Yuan Li +10 more
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STUDIES ON SPERM CAPACITATION [PDF]
Reproduction, 1973 Summary. During incubation of guinea-pig spermatozoa in Ca-free Krebs—Ringer phosphate buffer, substances were released into the medium which were subsequently separated on Sephadex G-200 into two major fractions, Fr. I and Fr. II. The macromolecular Fr. I increased with sperm maturation and the fraction was shown to
S. AONUMA +5 more
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Inhibiting sperm pyruvate dehydrogenase complex and its E3 subunit, dihydrolipoamide dehydrogenase affects fertilization in Syrian hamsters. [PDF]
PLoS ONE, 2014 BACKGROUND/AIMS: The importance of sperm capacitation for mammalian fertilization has been confirmed in the present study via sperm metabolism.
Archana B Siva +5 more
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Hormones and Sperm Capacitation in Rabbits
Experimental Biology and Medicine, 1971 SummaryBilaterally ovariectomized does were maintained on 1 μg of estradiol benzoate/kg of body wt/day and given various levels of either progesterone (P) or 20-α-hy-droxyprogesterone (20α-OHP) following mating to fertile bucks. Compared with estrogen-treated controls, a single injection of 0.5 and 1.0 mg of 20α-OHP and 0.15 mg of P increased the ...
E D, Plotka, W L, Williams
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Membrane Potential Assessment by Fluorimetry as a Predictor Tool of Human Sperm Fertilizing Capacity
Frontiers in Cell and Developmental Biology, 2020 Mammalian sperm acquire the ability to fertilize eggs by undergoing a process known as capacitation. Capacitation is triggered as the sperm travels through the female reproductive tract.
Carolina Baro Graf +8 more
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Effect of estrogens on boar sperm capacitation
Reproductive Biology and Endocrinology, 2010 Background Mammalian sperm must undergo a series of controlled molecular processes in the female reproductive tract called capacitation before they are capable of penetrating and fertilizing the egg.
Ded Lukas +4 more
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Dissociation between AKAP3 and PKARII promotes AKAP3 degradation in sperm capacitation. [PDF]
PLoS ONE, 2013 Ejaculated spermatozoa must undergo a series of biochemical modifications called capacitation, prior to fertilization. Protein-kinase A (PKA) mediates sperm capacitation, although its regulation is not fully understood.
Pnina Hillman +3 more
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Development of a biomolecular approach to identify sperm functions and fertility using sperm RNAs
Frontiers in Cell and Developmental Biology, 2023 Infertility affects a significant percentage of couples worldwide, and male factors contribute significantly to this problem. Traditional assessments of male fertility rely primarily on parameters such as sperm motility, morphology, viability, and ...
Won-Ki Pang +2 more
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Sperm capacitation and the acrosome reaction [PDF]
Human Reproduction, 1998 To achieve successful fertilization under normal circumstances in vivo, mammalian spermatozoa must first undergo capacitation and then the acrosome reaction, an exocytotic event that allows cells to penetrate the zona pellucida and fuse with the oocyte plasma membrane.
openaire +2 more sources