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 6 of 6 for “"germinal vesicle breakdown"”.
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Cholesterol and egg activation
… KO oocytes and found that they underwent normal germinal vesicle breakdown; however, SR-BI KO eggs, which had accumulated excess cholesterol in vivo, spontaneously activated; they escaped metaphase II (MII) arrest and progressed to pronuclear, metaphase III and anaphase/telophase III stages. Eggs …
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Fluorescence in Situ Hybridization Analysis of Human Embryos Derived From in Vitro and in Vivo Matured Oocytes
… following day. Prophase I oocytes, also called germinal vesicle-bearing or immature oocytes, require a 24-36 hour period in culture before being exposed to spermatozoa. During this time, the majority of Prophase I oocytes complete nuclear maturation in vitro, progressing from germinal vesicle …
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In vitro maturation and fertilization of porcine oocytes and evaluation of male fertility
… process was divided into the stages of germinal vesicle (GV I, GV II, GV III, and GV IV), metaphase I (EPromet I, LPromet I, and Met I), anaphase I (EAna I, MAna I, and LAna I), telophase I (Tel I), and metaphase II (Agg Met II, Not W-sp Met II, and Met II) by the criteria of chromosomal …
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Fortpflanzungsphysiologie und assistierte Reproduktion beim Haushund (Canis familiaris) - eine Literaturstudie
… The bitch ovulates primary oocytes with intact germinal vesicle, which requires 2-5 days for the completion of the meiotic divisions within the oviduct. Artificial insemination (AI) in bitch can be performed either intravaginally or intrauterinely with fresh, chilled or frozen-thawed …
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MicroRNA expression and function during porcine oocyte maturation and early embryonic development
… no transcription occurs in the oocyte following germinal vesicle breakdown until the activation of the embryonic genome. Our objectives were to 1) determine the importance of MIR21 expression and function during oocyte maturation, 2) develop and test an in vitro heat stress (HS) model for pig …
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Role of GnIH and GnRH in Paracrine Control of Gametogenesis in Zebrafish (Danio rerio)
… with GnRH and GnIH in isolation stimulated germinal vesicle break down (GVBD) in vitro. GnRH treatment increased caspase-3 activity, while GnIH treatment showed a protective effect on the late-vitellogenic follicles. GnRH and GnIH treatments were found to have similar effects on the …