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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 112 for “"FSH"”.
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Bone morphogenetic proteins (BMPs): new modulators of the follicle stimulating hormone (FSH) synthesis and release
… hormone (LH) and follicle -stimulating hormone (FSH) synthesized by the gonadotrope cells. A tight control of the production of these hormones is crucial, particularly in females, to coordinate the terminal follicular growth, the follicle selection as well as the timing and the number of …
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The regulation of the luteinizing hormone (LH) and the follicle stimulating hormone (FSH) by glucocorticoids and progestins
… hormone (LH), follicle-stimulating hormone (FSH), and gonadotropin-releasing hormone (GnRH), all hormones involved in the hypothalamic-pituitary-ovarian (HPO) axis and key regulators of E2 synthesis and release. This thesis analyzed the serum concentrations of E2, LH, FSH, and GnRH in women …
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Effects of hyper- and hypothyroidism on serum FSH ad LH in gonadectomized and intact male and female rats
Thesis (M.S.)--Michigan State University. Dept. of Physiology, 1974
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Investigation of Exogenous Gonadotropin Treatment for Prevention of Non-Infectious Infertility and for Embryo Production Using the Prepubertal Gilt as a Model
… embryos are limited for swine. In many species, FSH is favored over chorionic gonadotropins for induction of estrus and ovulation, yet little data are available to indicate its value for use in pigs. Therefore, the objective of this dissertation is to determine the effective methodology for the …
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Regulated expression of follicle stimulating hormone receptor type III in cancer causing mouse ovarian surface epithelial cells
Follicle stimulating hormone (FSH) is known as the key hormone capable of causing proliferation of granulosa cells in the ovary. The classical receptor belongs to the G protein-coupled superfamily and is designated FSHR-1. A variant in the FSH receptor has been shown to be functional in mouse …
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Extraovarian and Intraovarian Control of Follicular Selection in the Chicken Ovary
… follicle. Follicle stimulating hormone (FSH) and luteinizing hormone (LH) are primary regulators of follicular growth and differentiation. Epidermal growth factor (EGF), an intraovarian hormone, suppresses granulosa cell differentiation. However, the precise regulation and interactions of …
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Ovarian and uterine changes of gray squirrels as affected by season, aged, reproductive state and exogenous hormones
… In the first experiment it was determined that FSH-P can cause the formation of luteal glands in the absence of HCG injection. LH contamination of FSH-P probably caused the luteinization. There were no significant differences in ovarian response between squirrels receiving HCG subcutaneously and …
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Embryo Production by Superovulation and Dual Siring in Alpacas
… received twice daily intramuscular injections of FSH at decreasing doses (i.e. Day 1 = 50mg; Day 2 = 40 mg; Day 3 = 30; Days 4 to 7 = 20 mg). Administration of FSH was discontinued when half of the follicles in the growing cohort were = 7 mm in diameter, or after seven days. On the last day of FSH …
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Respuesta al tratamiento super ovulatorio, con Folltropin-V (analogo sintetico de la hormona foliculoestimulante-FSH), en hembras bovinas donantes, de las razas Pardo Suizo y Reyna, en fincas de la Universidad Nacional Agraria, Managua
… sintético de la hormona foliculoestimulante-FSH) en hembras bovinas donantes de las razas Pardo Suizo y Reyna. El tamaño requerido de la muestra fue de 10 hembras donantes para cada raza en estudio; las cuales fueron previamente seleccionadas según la calidad genética de cada hembra, la edad …
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Hormone Stimulable Adenylyl Cyclase Activity in Ovarian Granulosa Cells of the Domestic Hen (Gallus Domesticus)
… AC as the follicles mature. In contrast, FSH did not stimulate the AC system appreciably except in F(,3)Gr at very high gonadotropin concentrations. The lack of response argues for the existence of an FSH-AC system which develops earlier during follicular maturation and is waning by the …
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Development of the induced gonadotropin surge mechanism in the prepubertal heifer
… heifers (p < 0.05). A synchronous release of FSH was not associated with the release of LH with either treatment. In study 2, the ability of the hypothalamus to respond was examined more closely in prepubertal beef heifer calves. In this study, whether short-term separation of the calf and dam …
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Seasonal Reproduction in the Male Black Bear Ursus Americanusc and Male Polar Bear Ursus Maritimus
… undertaken to begin to study the role of serum FSH, LH, and particularly PRL in testicular recrudescence in the male black bear. The specific objectives of this research were: (1) to determine if testicular LH-, FSH-, and PRL-receptor mRNA abundance changes during testicular recrudescence and is …
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Role of Endogenous Dopamine in Regulation of Anterior Pituitary Hormone Secretion During Early Postpartum and Various Stages of the Estrous Cycle in Holstein Cows
… phase of the estrous cycle. Mean serum LH and FSH concentrations, pulse frequencies, and peak amplitudes did not change in response to FLU. FLU did not affect mean serum GH concentration. These results suggest that a dopamine-mediated mechanism for modulation of gonadotropin and GH secretion is …
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Anabolic-androgenic steroids : a series of meta-analyses
… estrogen (E2), follicle-stimulating hormone (FSH), luteinizing hormone (LH), and testosterone (T) indicated that these findings were not reliable and that further analysis of moderator variables was required. In general, type of drug and route of administration were identified as being the two …
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ΕΛΛΕΙΨΗ ΕΠΙΔΡΑΣΕΩΣ ΕΠΙΠΕΔΩΝ ΓΟΝΑΔΟΤΡΟΦΙΝΩΝ ΣΤΗΝ ΑΠΑΝΤΗΣΗ ΤΗΣ ΠΡΟΛΑΚΤΙΝΗΣ ΣΕ ΜΕΤΟΚΛΟΠΡΑΜΙΔΗ
… ANALYSIS SHOWED THE FOLLOWING: 1) THAT INCREASED FSH AND LH LEVELS OF HYPOGONADIC WOMEN DO NOT MODIFY THE PRL RESPONSE TO MET . 2) THAT ACUTE LOWERING OFFSH AND LH LEVELS OF POSTMENOPAUSAL WOMEN BY OESTROGENS DOES EFFECT THE PRL RESPONSE TO MET IN THESE WOMEN.
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Induction of fertile estrus during seasonal anestrus in ewes and fall born ewe lambs
… to the first service period in ewes treated with FSH was greater than the prolificacy in control and all ewes lambing to the second service period. Treatment with P4 for 5 d was as effective as for 12 d to induce fertile estrus in FSH-treated anestrous ewes.;In the second experiment, a 5 d …
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Glycoprotein hormone receptors in sea lamprey (Petromyzon marinus): Identification, characterization and implications for the evolution of the vertebrate hypothalamic-pituitary-gonadal/thyroid axes
… hormones GpH (lutropin LH, follitropin FSH, thyrotropin TSH) and glycoprotein hormone receptors GpH-R (LH-R, FSH-R and TSH-R respectively).</p><p>GpHs and GpH-Rs originate in a common ancestral ligand/receptor pair. Their duplications were followed by divergent evolution resulting in the …
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Dysregulation in polycystic ovary syndrome: mechanisms and therapeutic approaches
… hormone (LH), and follicle- stimulating hormone (FSH). Women with PCOS, experience irregular GnRH signaling that leads to an overproduction of LH and a reduction in FSH, which in turn stimulates excessive androgen production and hinders proper follicle development. Insulin resistance, another …
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Ovarian sensitivity of the prepubertal ewe to exogenous gonadotropins
… or 40 mg of ovine pituitary extract or 12 mg of FSH-p.
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