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Showing 1 to 18 of 18 for “"ejaculated"”.
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ICSI children. Follow-up after ICSI with ejaculated or non-ejaculated sperm.
Contains fulltext : 91329.pdf (Publisher’s version ) (Open Access)
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Apoptotic markers in ejaculated human spermatozoa
The role of male germ cell death in spermatogenesis is an important one as it removes dysfunctional or genetically damaged germ cells and is necessary to maintain an optimal germ cell to Sertoli cell ratio. The formation of the bloodtestis barrier requires the elimination of excessive germ cells …
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Apoptosis Pathways: Presence and significance in Ejaculated Human Spermatozoa
<p>Ejaculated sperm display markers that are indicative of apoptosis in somatic cells. The question remains as to whether sperm have operative apoptosis mechanisms. The aim of this research was to test the hypothesis that apoptosis markers in sperm and somatic cells are different.</p> <p>Ejaculated …
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Comparison of epididymal and ejaculated sperm collected from the same Holstein bulls
… utmost importance. In a series of experiments, ejaculated and epididymal sperm from the same four mature, fertile, Holstein bulls were collected, cryopreserved, cultured and used for in vitro fertilization. In Experiment I, epididymal sperm was found to have higher post-thaw motility compared to …
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Effects of elevated testicular temperature on viability of cryopreserved semen and morphological characteristics of ejaculated spermatozoa
… 2 for unfrozen semen. Once frozen, spermatozoa ejaculated during Period 2 were significantly different from Period 1 for both viability measurements, but only after 3 h incubation at 37°C (P≤.01). Mean percent pre-insult abnormal sperm level was 19.6 ± 5.7 and sperm morphology in Period 1 …
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Purification and identification of sulfated Lewis X binding proteins in boar sperm
… and SiLN putative receptors in epididymal and ejaculated sperm; furthermore, some of these receptors have overlapping characteristics that include comparable molecular weights and requirement of Ca2+ for adhesion (Chapter 3). Investigation of sLeX receptors in ejaculated sperm by affinity …
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Effect of seminal plasma on cryopreservation and function of bovine spermatozoa
… straight line velocity, VSL) of cryopreserved ejaculated spermatozoa (Experiment 1) and cauda epididymal spermatozoa, both fresh and frozen (Experiment 2).2) determine the effect of additional SP on sperm transport in the female using cryopreserved ejaculated sperm (Experiment 3) or …
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Η ΣΤΑΘΕΡΟΠΟΙΗΣΗ ΤΗΣ ΧΡΩΜΑΤΙΝΗΣ ΤΩΝ ΣΠΕΡΜΑΤΟΖΩΑΡΙΩΝ ΩΣ ΔΕΙΚΤΗΣ ΤΗΣ ΓΟΝΙΜΟΤΗΤΑΣ ΤΟΥ ΣΠΕΡΜΑΤΟΣ
… CONCLUDE THAT WHERE THE CHROMATIN STABILITY OF EJACULATED SPERMATOZOA IS GREATER THAN 70% IT HAS A POSITIVE EFFECT ON FERTILIZATION, WHERE THE CHROMATIN STABILITY IS BETWEEN 50% AND 70% THERE IS A MORE LIMITED POSSIBILITY OF FERTILIZATION AND FINALLY THE EXISTENCE OF LESS THAN 50% OF STABLE …
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ΕΠΙΔΡΑΣΗ ΤΗΣ ΔΥΣΛΕΙΤΟΥΡΓΙΑΣ ΤΟΥ ΠΡΟΣΤΑΤΗ ΚΑΙ ΤΩΝ ΣΠΕΡΜΑΤΟΔΟΧΩΝ ΚΥΣΤΕΩΝ ΣΤΟ ΣΠΕΡΜΑ ΚΑΙ ΣΤΟ HUHNER TEST
… ON THE LIQUEFACTION AND VISCOSITY OF FRESHLY EJACULATED SEMEN AND THE MOTILITY AND VIABILITY OF SPERMATOZOA IN 319 MEN OF INFERTILE COUPLES. THE QUANTITATIVE AND QUALITATIVE MOTILITY AND VIABILITY OF SPERMATOZOA WERE SIGNIFICANTLY LOWER IN CASES WITH SEVERE PROSTATIC DYSFUNCTION IN THE LATTER …
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The distribution of plasminogen activator in the male genital tract
… 1953). Indeed, when human seminal fluid is ejaculated, it undergoes a process resembling the clotting and fibrinolysis of the blood, by coagulating then liquefying spontaneously. The coagulum is formed when a fibrinogenlike protein secreted by the seminal vesicles is acted upon by a clotting …
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Effects of sympathomimetic drugs on the contractility of the vas deferens and on fertility in the male rat and rabbit
… the treatment impaired the quaIity of the ejaculated sperm. Spontaneous restoration of fertiIity was evident with some of the treatments, but not with others. It was concluded that the main cause of infertilty was the reduction of sperm numbers in the ejaculate resulting from either a block …
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Separation of abnormal spermatozoa from semen produced by bulls with impaired testicular thermoregulation
… Full insulation caused abnormalities to be ejaculated from d 10 to 33 post-insulation. Specific morphologically abnormal cells occurred in a chronological order. The order of occurrence was: tailless heads, diadem defect, nuclear vacuole defect, pyriform shaped heads, protoplasmic droplets, …
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Denis Kearney: Sandlot Orator a Chronicle of California
… orator (having traveled fifty miles to do so) ejaculated:"Denis Kearney! Why write about him?"</p> <p> Yes, why write about Denis Kearney? Simply because to use the words of the New York Nation of August 1, 1878 - here transcribed into the past tense -</p> <p>He was a kind of animal for which …
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Influence of the female reproductive tract on the motility and morphological characteristics of ram spermatozoa
… (TALP) medium. Nearly all spermatozoa in freshly ejaculated semen were uncapacitated but after 12 hours incubation in Hepessynthetic oviduct fluid (HSOF), 70% were capacitated. Baseline information on the detailed motility and movement characteristics was determined with a computer-aided semen …
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Structural and functional aspects of sperm after transit through the fallopian tube of the sheep
Ejaculated mammalian spermatozoa have the potential for fertilization. The acquisition of the ability to fertilize a fully invested oocyte occurs during the passage through the female reproductive tract. These post-ejaculatory maturational changes include the processes of capacitation and the …
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Impact of an artificial insemination programme on reproductive efficacy and the cross-breeding if indigenous South African goats with Boer goats in Vhembe District
… BAF13 and BAF18, respectively) were tested. Ejaculated spermatozoa samples were pooled and homogenized before dilution at a ratio of 1:4 with TEY, TBAF10, TBAF13 and TBAF18 extenders. Diluted spermatozoa samples were then stored at 5°C for 168 h and evaluated in a 4 (extenders) X 8 (storage …
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Enhancing Boar Reproductive Performance for Purposes of Artificial Insemination
… for semen collection or number of spermatozoa ejaculated.
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Determining the role of nerve growth factor-beta in seminal plasma on bovine reproduction
… acrosome integrity, or chromatin stability in ejaculated or epididymal derived sperm. Collectively, these results demonstrate that NGF is positively associated with bull fertility, which may be attributed to its beneficial effects within the female reproductive tract rather than on spermatozoal …