Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Fertilization in vitro"”.
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Studies on Fertilization in Vitro in Mammals
The objective of this thesis was to examine, using light and electron microscopy, the behavior of the sperm-egg interaction: (a) during the normal fertilization process; and (b) when the fertilization process was modified chemically and physically. Chemical modification of the fertilization process …
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Modulation of calcium signalling in human sperm by nitric oxide
… by nitric oxide synthase (NOS) is implicated in gamete interaction and fertilization. In vitro studies were undertaken to assess the ability of human sperm and cumulus cells (surrounding the oocyte) to generate NO, investigate the mechanism of action of NO, the NO-mediated [Ca\(^{2+}\)]\(_i\) …
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Andrological Methods of Predicting the Pregnancy Outcome of an <i>in vitro</i> Fertilization Program
<p>Current advances in fertility treatment emphasize extracorporeal procedures, such as in vitro fertilization (IVF)/embryo transfer. IVF is now used to treat several types of infertility, including male factor and idiopathic infertility. However, IVF is time consuming, costly, unpredictable, and …
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The physiological significance of insemination in programming pregnancy outcome
… and molecular environment of the uterus during the pre - and peri - implantation period of early pregnancy is critical for implantation success and optimal fetal and placental development. Perturbations to this environment not only have consequences for the success of pregnancy and neonatal …
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Effects of In Vitro Maturation and Fertilization of Cattle Ova on Rate of Twinning in Beef Cattle
… Texas State University, San Marcos, to examine the effects of using in vitro matured and fertilized embryos in embryo transfer to induce twinning and examine the influence of twinning on cow production and carcass characteristics between single and twin calves. Fifteen single parity cows …
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Oncogenic mutation of GNAQ/11 disrupts melanocyte biology in a Zebrafish model of uveal melanoma
Uveal melanoma (UM) is the most common primary intraocular cancer in humans. These tumors arise from nonclassical melanocytes found in the choroid, iris, and ciliary body (collectively called the uvea). Over 80% of UM tumors contain activating mutations in one of two genes encoding the homologous …
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The relationship between Anti-Müllerian Hormone (AMH) levels and pregnancy outcomes in patients undergoing in- vitro fertilization (IVF) or intra-cytoplasmic sperm injection (ICSI)
Submitted in partial fulfilment of the requirements for the degree of Master of Health Sciences in Clinical Technology, Durban University of Technology, Durban, South Africa, 2019.
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Analysis of Oocyte Quality in the Rhesus Macaque (Macaca mulatta)
Many primate populations face the threat of extinction due to habitat loss, intensive agriculture, hunting for meat, the pet trade and/or use in traditional medicines. An alternative approach to in situ conservation includes gene banking and the use of assisted reproductive technologies (ART), such …