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Showing 1 to 18 of 18 for “"Semen analysis"”.
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Impact of obesity on semen analysis parameters
… investigation, as well as assessing any semen analysis abnormalities in these groups. It also aims to describe how well men can predict their BMI category and determine whether weight loss would be an acceptable part of infertility management in overweight or obese male partners. Beliefs …
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Methods for semen analysis and intrauterine insemination: room for improvements
Contains fulltext : 232634.pdf (Publisher’s version ) (Open Access)
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Porcine sperm binding to oviduct cells and glycans as supplements to laboratory semen analysis
Made available in DSpace on 2017-09-29T16:39:04Z (GMT). No. of bitstreams: 2 WINTERS-THESIS-2017.pdf: 2139345 bytes, checksum: fefd923307c810e3b0ef703e67f7f783 (MD5) LICENSE.txt: 4212 bytes, checksum: 2f272282614c94c4f29c0cea4830b940 (MD5) Previous issue date: 2017-05-30
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Post-vasectomy semen analysis: Follow-up of patients at three Cape Town Metropole facilities.
… We retrieved the results of the post-vasectomy semen analysis (PVSA) from the Reproductive Medicine Unit at Groote Schuur Hospital. Results: Our study population included 270 patients who had vasectomies from September 2016 to July 2021. Only 122 (45.2%) PVSA results from those patients that …
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A retrospective analysis of semen samples and reproductive hormones in Africa and the middle east
Semen analysis is the cornerstone for the investigation of male infertility. Semen quality can be influenced by geographical location, age, ejaculatory abstinence, and season. In 2010, the WHO published criteria for human semen characteristics that were markedly lower than those previously …
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Examining the (patho)physiology of physiologically relevant ligands present in the male and female reproductive tracts
… male infertility is clinically diagnosed by semen analysis, which results in a large number of cases being diagnosed as idiopathic (unexplained). Several known sperm molecular defects are undiagnosable by the semen analysis and result in male infertility and failed In vitro Fertilisation …
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Arachidonate 15-lipoxygenase and ubiquitin as potential fertility markers in boars
… determine whether using high power microscopic analysis and two putative biochemical fertility markers, 15-lipoxygenase (15-LOX) and ubiquitin (UBI), could be used to accurately evaluate boar semen quality. In this study, ejaculates (n=116) were collected from 18 Large White boars for eight …
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Apoptotic markers in ejaculated human spermatozoa
… the apoptotic marker assays and the standard semen analysis results were identified. This study compares early and late parameters of apoptosis with morphological features in spermatozoa in the same samples. The three sample groups were identified as: teratozoospermic [G-pattern] (n=26), …
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Values and Science: An Interdisciplinary Feminist Exploration
… in scientific measurement through a comparative analysis of two human fertility metrics: semen analysis and ovarian reserve testing. Drawing heavily on the literature and methods of feminist science studies, I argue that fertility metrics reflect and enact different gendered imperatives of …
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Novel method of selecting human spermatozoa for <em>In </em><em>Vitro </em>fertilization
… the diagnosis of male infertility is based on semen analysis when semen volume, sperm concentration, motility and morphology are evaluated. These characteristics help to assess how many spermatozoa are capable to get through the natural barriers of the female reproductive tract such as viscous …
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CatSper: Characterisation in Human Spermatozoa and Clinical Significance
… each of these groups were found to have normal semen analysis, yet sperm were found to have a complete absence of calcium response to progesterone, thus indicating CatSper dysfunction.<br/><br/>This study also investigated the effect of cryopreservation on human sperm function, with particular …
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Zinc ion fluxes on the pathway to mammalian sperm fertilization competency
… sperm fertilization competency and management of semen storage. Little focus has been placed on other divalent ions, including zinc ion (Zn2+). Further, the ultimate maturation event preparing mammalian spermatozoa for fertilization, sperm capacitation, was first described in 1951, yet its …
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Autophagy maintains the homeostatic environment in the male reproductive organs playing a key role in fertility
… of fibrosis following autophagy inhibition. Semen analysis revealed low counts and poor motility with significantly reduced fertilisation rates during in vitro fertilisation (IVF), as well as evidence of subfertility following in vivo natural copulation. Finally, transcriptomic analysis of …
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Does traditional Chinese medicine improve semen morphology, motility and count? : a pragmatic randomised clinical trial
… claim fair to excellent results in improving semen parameters and pregnancy rates. Three clinical trials conducted by Pei et al (2005), Siterman et al (2000) and Siterman et al (1997) also found evidence of a statistically significant increase in semen parameters within the treatment group …
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Relationships between in vivo and in vitro heterospermic ranking, embryo development, and sperm characteristics of Holstein and Jersey bulls
… development, and sperm characteristics. Extended semen from Holstein (n = 3; H2, H3, H4) and Jersey (n = 3; J1, J2, J3) bulls was either frozen homospermically or mixed in a 1:1, H:J ratio prior to freezing, resulting in 9 H/J heterospermic pairings that were later thawed for AI (H-VIVO; …
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Investigations of achromobacter xylosoxidans and ralstonia pickettii in porcine semen extension systems
Dilution and extension of semen longevity has been widely used in the swine industry to improve reproductive efficiency and genetic progress through artificial insemination. Through the dilution and extension of the life of the sperm cell, other organisms such as bacteria are also maintained and …
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Reproductive function in young Swedish men - Time trend, prenatal and adult exposure to smoking and phthalates
… general Swedish population were recruited. Their semen quality was compared with a group of men recruited in a similar manner between 2000 and 2001. The participants also delivered serum and urinary samples and answered questionnaires concerning maternal and paternal smoking during pregnancy. Data …
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The Use of Ceftiofur Sodium in the Extension and Cooled Storage of Equine Semen: Its Effects on Motion Characteristics, pH, Osmolality, and Bacterial Growth
During semen collection in the stallion, contamination of the ejaculate occurs secondarily to the normal microflora present on the external genitalia. These bacteria and their metabolites can negatively affect spermatozoal motility and viability during cooled storage. Therefore, the addition of …