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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 65 for “"follicle stimulating hormone"”.
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Bone morphogenetic proteins (BMPs): new modulators of the follicle stimulating hormone (FSH) synthesis and release
… the secretion of the gonadotropins, luteinizing 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 …
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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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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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The regulation of the luteinizing hormone (LH) and the follicle stimulating hormone (FSH) by glucocorticoids and progestins
… These could potentially involve luteinizing 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 …
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The Effect of Follicle-Stimulating Hormone and Testosterone Propionate on the Reproduction of the Bull Snakes, Pituophis Melanoleucus Catenifer and Pituophis Melanoleucus Affinis; Accompanied with Analysis of Changes in Blood Protein Constituents Following Stimulation
The bull snake, Pituophis melanoleucus, was chosen for this experimentation for several reasons; (1) it is relatively abundant in Central Washington (2) it is a large snake, well able to withstand the effects of the frequent blood samplings which were necessary in this experimentation ... (3) the …
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Physiological Responses of Holstein Cows to Three Superovulatory Methods
… assess the superovulatory efficacy of continuous follicle stimulating hormone (FSH) administration subcutaneously (SC) via osmotic pumps, (2) assess the benefits of gonadotropin releasing hormone (GnRH) administration on the day of expected estrus and (3) determine the relationship of vaginal …
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The Role of Gonadotropic Hormones in Follicular Maturation of the Domestic Hen
… in granulosa cells as well as the role of follicle-stimulating hormone (FSH) receptors on granulosa cells during follicular maturation.
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Anabolic-androgenic steroids : a series of meta-analyses
… observed for sperm concentration, testicle size, follicle-stimulating hormone, and luteinizing hormone. Moderate positive treatment effects were observed for lean body mass, thigh circumference, bench press, and squat; while moderate negative effects were found for Apo-AI, high-density …
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The role of extracellular loop three of the human gonadotropin releasing hormone receptor in ligand selectivity
… neuropeptide, gonadotropin releasing hormone (GnRH) perferentially inteacts with GnRH type I receptors on the gonadotropes in the anterior pituitary. Activation of the GnRH receptor is required for the biosynthesis and release of luteinizing hormone (LH) and follicle stimulating …
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Effect of immunoglobulins on early bovine embryo development in vitro
… superovulations were conducted in 36 cows with follicle stimulating hormone. Embryos were collected by non-surgical procedures and morphologically evaluated and randomly assigned to culture. Embryos were cultured in Ham's F-10 containing 10% (6.4 mg/ml) steer serum (SS), 1% (.64 mg/ml) bovine …
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Analysis of glycans and glycoproteins by mass spectrometry
… demonstrated here by characterizing glycans of follicle stimulating hormone in two mammalian species. Finally, a statistical approach (STEP-statistical test of equivalent pathways), which was developed on the ion trap mass spectrometry is extended to a routinely used instrument, the triple quad …
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GnRH and neuropeptide regulation of gonadotropin secretion from cultured human pituitary cells
Gonadotropin-releasing hormone (GnRH) and its superactive analogues are currently being used in the treatment of a number of endocrine disorders, such as endometriosis, precocious puberty, infertility and prostatic cancer. Selection of these analogues for clinical use have been previously based on …
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Leptin verbessert weibliche Fertilitätsmarker bei Lipodystrophie
… wiesen nach, dass die mRNA-Expression des follicle-stimulating hormone-Rezeptors (p < 0,01) und Östrogen-Rezeptors β (p < 0,05) in Ovarien sowie von luteinizing hormone β (p < 0,001) und follicle-stimulating hormone β (p < 0,05) in der Hypophyse signifikant erhöht war in Kochsalz- …
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Localization of Luteinizing Hormone-Releasing Hormone (LHRH) in the Hypothalamus of Fetal Bovine
Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH) are mammalian gonadotropins released from the anterior pituitary by Gonadotropin Releasing Hormone (GnRH) in the hypothalamus. Various analogs ofGnRH have been identified. Localization of these hormones is the first step in discovering …
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Effects of Estradiol on Leydig Cell Function and Testicular Development in the Prepubertal Bull
… of human chorionic gonadotropin (hCG). Serum hormone levels were determined weekly. At 39 weeks of age, E and P calves were castrated for histologic evaluation of the testes and assessment of in vitro Leydig cell function. Serum E$\sb2$ was greater than 100 pg/ml in all calves at birth but …
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Dysregulation in polycystic ovary syndrome: mechanisms and therapeutic approaches
… It is marked by high levels of androgens (male hormones), irregular ovulation, and metabolic disorders, all of which are linked to disruptions in gonadotropin regulation. The hypothalamic-pituitary-gonadal (HPG) axis plays a key role in reproductive function, controlling the release of …
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A Lamprey Gonadotropin-releasing Hormone in the Bovine Brain
… is under control of the hypothalamic luteinizing hormone-releasing hormone (LHRH) and a putative analog, follicle stimulating hormone-releasing factor (FSHRF). Analogs of mammalian LHRH and their receptors have been isolated in various animals; of these, the lamprey-gonadotropin-releasing …
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Structure and biological activity of avian hypothalamic luteinizing hormone-releasing hormone
… et al., 1971) isolated gonadotropin-releasing hormone (now called luteinizing hormone-releasing hormone (LH-RH)) from sheep hypothalami and established that the hormone was a decapeptide with the amino acid sequence: pGlu-His-Trp-Ser-Tyr-Gly-Leu-Arg-Pro-Gly-NH₂. The peptide was subsequently …
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The effect of uterine flushings on early bovine embryo development in vitro
… Ninety-eight cows were superovulated with follicle stimulating hormone. Embryos were collected by non-surgical flushing procedures and morphologically evaluated and randomly assigned to culture. Embryos were cultured in Ham's F-10 containing 10% steer serum (SS), 10% P or E concentrated UF, …
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