Search for dissertations about: "oocyte growth"
Showing result 1 - 5 of 19 swedish dissertations containing the words oocyte growth.
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1. Teleost reproduction: Aspects of Arctic char (Salvelinus alpinus) oocyte growth and maturation
Abstract : In all vertebrate species, reproduction is a hormonally controlled process, important for growth and maturation of gonads and germ cells. Production of functional germ cells is of outmost importance to secure the survival of a species. Fish comprises 50% of the known vertebrates and are found in aquatic habitats all over the world. READ MORE
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2. Molecular studies of intra-oocyte phosphatidylinositol 3 kinase (PI3K) signaling pathway in controlling female fertility
Abstract : The primordial follicle pool is the main source of developing follicles in the ovary. The length of reproductive life and the onset of menopause are governed by the amount of primordial follicles in the ovary. READ MORE
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3. The functional roles of the intra-oocyte phosphatidylinositol 3-kinase (PI3K) signaling in controlling follicular development in mice
Abstract : The key functions of the mammalian ovary are the production of fertilizable oocytes and thesecretion of steroid hormones. At the time of birth the human ovary is composed of basic unitstermed primordial follicles. Primordial follicles are long-lived structures in the ovary and some ofthem last until the woman reaches menopause. READ MORE
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4. Growth hormone and somatolactin function during sexual maturation of female Atlantic salmon
Abstract : Background and aims: The growth hormone-insulin-like growth factor I (GH-IGF-I) system is known to act during sexual maturation of female salmonids, but the specific roles are not known. Somatolactin (SL) is a pituitary hormone closely related to GH and is only found in fish. In some species, including salmonids, there are two forms, SLa and SLß. READ MORE
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5. Studies of phosphatidylinositol 3 kinase (PI3K) signaling pathway in mammalian ovarian follicle activation and development
Abstract : The intra-oocyte signaling pathways that control oocyte growth and early follicular development are largely unknown. The aim of this thesis was to investigate the regulation and functions of phosphatidylinositol 3 kinase (PI3K) pathway in the oocyte, focusing in the roles of Foxo3a, p27, and Pten (phosphatase and tensin homolog deleted on chromosome ten). READ MORE