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Showing 1 to 20 of 27 for “"ovarian follicles"”.
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Toxicity and detoxification of imidacloprid in mouse ovarian follicles
… designed to test the hypothesis that IMI causes ovarian follicle toxicity via acetylcholine pathways and the ovary itself contributes to this ovotoxicity using its metabolic machinery. In Chapter 3, I compared the effects of IMI and DNI on antral follicle physiology in vitro. Antral follicles …
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Adamts9 is critical for the development of primary ovarian follicles
… been linked to various human disorders including ovarian and uterine disease. Our previous work has demonstrated that Adamts9 is necessary for ovarian development in zebrafish. Adamts9 KO zebrafish had a heavily male-biased sex ratio as 6–7-month-old adults, and female Adamts9 KOs were infertile. …
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Computer-Assisted Image Analysis of Human Ovarian Follicles: Imaging Physiologic Selection
Antral ovarian folliculogenesis involves recruitment of a cohort of small follicles, physiological selection of a dominant follicle, and ovulation. The mechanism of selection has not been precisely determined. Identification of the timing of preovulatory selection is a key component in …
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An Agent-Based Model of Cryoprotectant Equilibration in Secondary Stage Preantral Ovarian Follicles
… patients is the cryopreservation of immature ovarian follicles followed by maturation and subsequent reimplantation. However, preantral ovarian follicles currently have lower post-thaw success rates compared to mature oocytes and embryos. Previous research suggests that damage to vital …
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Interrelationship Between Ovarian Follicles and Corpora Lutea on Maintenance of Pregnancy in Miniature Pigs
Made available in DSpace on 2014-12-10T22:30:18Z (GMT). No. of bitstreams: 1 7105188.pdf: 3008024 bytes, checksum: 490c3e50c176b2b0375ca057e6aa2fd5 (MD5) Previous issue date: 1970
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Characterization of Microrna Expression Profiles and Role of Nodal-Related Genes in Zebrafish Ovarian Follicles
… In zebrafish, early vitellogenic (stage IIIa) ovarian follicles are maturationally incompetent while mid-late vitellogenic (stage IIIb) follicles are able to undergo oocyte maturation in response to maturation-inducing hormone signals. Signaling molecules derived from the ovary, such as …
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Role of the Pituitary Gland and Ovarian Follicles on Maintenance of the Corpus Luteum of the Ewe
Made available in DSpace on 2014-12-10T22:30:16Z (GMT). No. of bitstreams: 1 7105148.pdf: 4132951 bytes, checksum: f7e2e66f1c5ea73e5c75463a32375cbd (MD5) Previous issue date: 1970
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Follicle stimulating hormone and steroidogenesis in ovarian granulosa cells during aging in the domestic hen
… growth increases, while the number of growing follicles decreases. The causes for this physiological change with age are not defined. Perhaps there are changes with age in the responsiveness of ovarian follicles to gonadotropins.
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MULTISCALE TECHNOLOGIES FOR ENGINEERING AND CRYOPRESERVING OVARIAN TISSUES AND HUMAN IPSCs
… of the tightly controlled process of ovarian follicle development. Impaired fertility can arise from disorders like polycystic ovarian syndrome (PCOS) or premature ovarian insufficiency (POI), which affect the function of the ovary, an integral reproductive organ that houses the …
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Developmental Effects of Cortisol on the Stress Response and Behaviour in Zebrafish
… of 11βHSD2, a cortisol-degrading enzyme, in the ovarian follicles. Excess embryo cortisol content disrupted the larval stress response, locomotor activity, and was anxiolytic. These phenotypes corresponded with increased region-specific neurogenesis. Post-hatch elevation in cortisol levels by …
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Pengaruh ekstrak daun pegagan (Centella asiatica (L) urban) dosis tinggi terhadap histologi dan berat ovarium mencit (Mus musculus) betina
… a number of active ingredients that can affect ovarian follicles. The active ingredient can affect the hormones that are needed in the maturation of the follicle, affecting thick theca cells, corpus luteum and ovarian weight of mice. This study aimed to determine the effect of Centella asiatica …
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Recruitment of monocytes to the pre-ovulatory ovary
… ovary and facilitate the release of oocytes from ovarian follicles. These studies utilized a super-ovulation protocol to initiate ovulation in immature balb/c and cd1 mice. Ovaries were collected at several times post human chorionic gonadotropin (hCG) injection and analyzed by multi-color flow …
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Determine the developmental dynamics of primordial follicles in the mouse ovary
Ovarian follicles are the basic functional units of the mammalian ovary. Progressive activation of primordial follicles serves as the source of fertilizable ova. In this thesis, by generating the Foxl2-CreERT2 and Sohlh1-CreERT2 mouse models, I have specifically labeled and traced the in vivo …
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Expression of DIO2 in the Porcine Ovary and the Granulosa Cells of Humans
… are production of gametes and steroidogenesis. Ovarian follicles are the functional component of the ovary and respond to hormonal changes in the body during reproductive cycles. As follicles develop, the somatic cells of the ovary differentiate into granulosa cells and theca cells. Following a …
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Impacts of perfluorooctanoic acid on porcine oocyte health and competence
… oocyte is the female gamete and develops within ovarian follicles and has intimate connection with the ovary, the ovarian blood supply, and the follicular fluid of antral follicles. Per- and polyfluoroalkylated substances are environmental toxicants that have been detected in the follicular fluid …
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Clinical and endocrine responses to ovarian hyperstimulation in flare and and luteal gonadotropin-releasing hormone agonist (GnRHa) protocols
… Anti-Mullerian Hormone (AMH), a novel marker for ovarian reserve, was used as a tool to evaluate the ovarian responsiveness to stimulation. Methods: Women undergoing IVF/ICSI treatment in the UBC IVF Program from January to December 2006 using luteal and flare protocols were retrospectively …
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The Blood-Oocyte Barrier: Morphological Evidence Implicating The Zona Pellucida
… study proposes that the zona pellucida of the ovarian follicle is the barrier between the immune system and the oocyte. The suggestion is made that the oocyte may play a role in blocking the immune system during its maturation, and follicles in which the oocyte is incapable of providing for its …
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Influence of Insulin, Insulin-Like Growth Factor I and Sex Steroids On the Regulation of the Vitellogenin Receptor In Developing Oocytes of Largemouth Bass (Micropterus Salmoides)
… the expression of LMB <italic>vtgr</italic> in ovarian tissues during normal reproduction, determine the role of hormones in regulating this gene at the transcriptional level and discern the ability of select environmental chemicals to interfere with pathways that control …
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Neuroendocrine regulation of broodiness in the domestic hen
… plasma progesterone and oestrogen from maturing ovarian follicles that induce nesting behaviour. This is subsequently transformed into incubation behaviour by increased plasma prolactin in association with decreased gonadotrophin and ovarian steroid secretion. Gonadotrophin secretion is under the …
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