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 20 of 202 for “"follicles"”.
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Mechanism of methoxychlor toxicity in mouse ovarian antral follicles
… fertility by increasing atresia of antral follicles and by decreasing numbers of healthy antral follicles in adult female mice. Further, MXC inhibits growth and induces atresia of mouse antral follicles in vitro. Little is known, however, about the mechanisms by which MXC causes slow growth …
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Steroidogenic cell populations in follicles of the chicken ovary
… cell theory for steroidogenesis in preovulatory follicles of the chicken ovary states that the granulosa layer metabolizes cholesterol to progestins and progestins are, then, metabolized to androgens and estrogens by the theca layer. However, the precise site of steroidogenic cells in the theca …
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Toxicity and detoxification of imidacloprid in mouse ovarian follicles
… on antral follicle physiology in vitro. Antral follicles were cultured with a vehicle control (DMSO or ultrapure water), IMI (0.2 - 200 µg/mL), or DNI (0.2 - 200 µg/mL) for 48, 72, and 96 hours. Specifically, I evaluated follicle growth, morphology, sex steroid hormone levels, and gene …
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Adamts9 is critical for the development of primary ovarian follicles
… and development of primary ovarian follicles in zebrafish. We found adamts9 was widely expressed in various tissues during embryonic and larval development and transcripts are also maternally deposited. We found strong expression in the developing retina at 48 hours post …
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Effects of methoxychlor and its metabolites on mouse antral follicles
… as in vivo. Results indicate that ovarian antral follicles of ESR1 OE are more sensitive to growth inhibition and atresia induced by MXC and its metabolites compared to controls. Moreover, MXC and its metabolites cause differential gene expression of nuclear receptors and pro-apoptotic markers in …
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Computer-Assisted Image Analysis of Human Ovarian Follicles: Imaging Physiologic Selection
… 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 understanding natural and …
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Mechanism of Bisphenol A toxicity in adult mouse ovarian antral follicles
… as ovarian follicle growth and steroidogenesis. Follicles are the functional units of the ovary, responsible for ovulating an oocyte and producing sex steroid hormones during steroidogenesis. Follicles grow and develop from primordial, primary, pre-antral, and finally, to antral follicles over …
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Equol inhibits growth, induces atresia, and inhibits steroidogenesis of mouse antral follicles
… the direct effects of equol on intact antral follicles, which are responsible for sex steroid synthesis and further development into ovulatory follicles. The present study tested the hypothesis that equol inhibits antral follicle growth, increases follicle atresia, and inhibits steroidogenesis …
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An Agent-Based Model of Cryoprotectant Equilibration in Secondary Stage Preantral Ovarian Follicles
… 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 intercellular …
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Regulation of Estradiol-17beta Synthesis by Small Follicles of the Domestic Hen Ovary
Small follicles are essential for successful reproduction of the hen because they are the source of follicles recruited into the hierarchy and the major source of estrogen. Estrogen is essential for yolk synthesis, egg shell formation, and other reproductive functions in the domestic hen. Although …
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Endocrine Interrelations Between Follicles, Corpora Lutea, and Interstitial Tissue of the Rabbit Ovary
Made available in DSpace on 2014-12-09T14:28:58Z (GMT). No. of bitstreams: 1 6711873.pdf: 2988763 bytes, checksum: 9b605e3c6839c2439ad26a6d984af8b3 (MD5) Previous issue date: 1967
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Physiology of the germinal disc region in preovulatory follicles of the chicken ovary
The germinal disc region (GDR) has been hypothesized to be growth center of the avian preovulatory follicle. This investigation was undertaken to examine critical aspects of the physiology of the GDR with respect to its role in the proliferation and differentiation of the granulosa layer. …
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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
… 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 microRNAs …
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PGE2 Receptor Subsets Mediate HCG Regulation of the Plasminogen Activator/Plasmin System in Primate Periovulatory Follicles
… receptors are present in monkey periovulatory follicles, granulosa cells and whole ovaries were collected 0, 12, 24, and 36 hours after administration of an ovulatory dose of human chorionic gonadotropin (hCG), or 36 hours after hCG from monkeys that received the prostaglandin (PG) synthesis …
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Role of Insig-Mediated Cholesterol Homeostasis in the Development of the Palate and Hair Follicles in Mice
… structures and the proper development of hair follicles in mice. Our findings have implications for the pathogenesis of the palate and skin/hair follicle defects observed in human malformation syndromes due to aberrant cholesterol biosynthesis.
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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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Induction of hair follicles using neonatal mouse dermis and human keratinocytes: relevance for improved burn wound treatments
… the formation of skin appendages and hair follicles. In normal embryonic development hair follicle formation requires the interaction between epithelial (keratinocytes) and mesenchyme cells. Attempts to recapitulate the process of hair induction in wounded skin in vitrousing human cells …
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The pathological outcomes related to symptomatic impacted third molars and follicles as found in a private practice in South Africa
The aim of this study primarily was to review pathological reports of all symptomatic third molar teeth removed in a private practice, and to use the data to support or refute routine removal of third molar teeth. All patients who underwent third molar tooth removal for symptoms,either systemic or …
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