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Topic: Follicle-stimulating hormone

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Hormone

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Hormones of the Pituitary Synthesis and release of FSH is triggered by the arrival from the hypothalamus of gonadotropin-releasing hormone (GnRH). stimulated by the arrival of thyrotropin releasing hormone (TRH) from the hypothalamus. The GH-secreting cells are stimulated to synthesize and release GH by the intermittent arrival of growth hormone releasing hormone (GHRH) from the hypothalamus. users.rcn.com /jkimball.ma.ultranet/BiologyPages/P/Pituitary.html   (1334 words)

follicle stimulating hormone Drug Information Follicle stimulating hormone is in the FDA pregnancy category X. This means that follicle stimulating hormone is known to cause birth defects in an unborn baby (when used beyond the period of ovulation). Follicle stimulating hormone is also used to stimulate the development of multiple eggs for in vitro fertilization. Follicle stimulating hormone is used to stimulate a follicle (egg) to develop and mature. www.drugs.com /MTM/follicle_stimulating_hormone.html   (1377 words)

FSH: The Test FSH levels are also useful in the investigation of menstrual irregularities and to aid in the diagnosis of pituitary disorders. FSH is often used in conjunction with other tests (LH, testosterone, estradiol, and progesterone) in the workup of infertility in both men and women. In women, FSH and LH levels can help to differentiate between primary ovarian failure (failure of the ovaries themselves) and secondary ovarian failure (failure of the ovaries due to disorders of either the pituitary or the hypothalamus). www.labtestsonline.org /understanding/analytes/fsh/test.html   (450 words)

The Recombinant Follicle Stimulating Hormone : A New Alternative for Induction of Ovulation and Treatment of Polycystic Ovary Syndrome Wit regard to these studies, it seems that rFSH is as safe and effective as uFSH, or even better, in stimulating ovarian follicular development. Approximately 20 % of the administered FSH and 10 % of the recombinant FSH was excreted in the urine. To isolate the a subunit from gondotrophin, placental tissue and DNA are homogenised and isolated by extraction. www.gfmer.ch /Endo/PGC_network/Recombinant_Prasmusinto.htm   (5087 words)

Follicle-Stimulating Hormone - SJMMC, Ann Arbor, Michigan The amounts of FSH and other hormones (luteinizing hormone, estrogen, and progesterone) are measured in both a man and a woman to determine why the couple cannot achieve pregnancy (infertility). High FSH values in a woman before menopause may mean that her ovaries are not working or that she may have polycystic ovary syndrome (PCOS). High FSH levels in a man may indicate Klinefelter's syndrome or that the testicles are absent, are not functioning properly, or have been damaged. www.sjmercyhealth.org /13705.cfm   (1278 words)

FSH (Follicle Stimulating Hormone) FSH produced and secreted by the anterior part of pituitary gland, has the role of stimulating the growth and maturation of tha ovarian follicles in women and the testes to produce sperm in men. www.affiland.com /pituitary/hfsh.htm   (59 words)

FSH Follicle Stimulating Hormone Gonal-F Follistim Repronex Follicle stimulating hormone (FSH) is naturally produced by the pituitary gland and stimulates the recruitment and development of the ovarian follicles located on the ovaries, each of which contains an egg. The production of FSH and other reproductive hormones is controlled by the complex interaction of several hormones in a biologic feedback system known as the "hypothalamic-pituitary-adrenal" axis. FSH should only be administered by a reproductive endocrinologist thoroughly trained in its use. www.infertilityspecialist.com /fertility_drug_fsh.html   (447 words)

follicle-stimulating hormone --  Britannica Concise Encyclopedia - The online encyclopedia you can trust! FSH, a glycoprotein operating in conjunction with luteinizing hormone (LH), stimulates development of the graafian follicle, a small, egg-containing vesicle in the ovary of the female mammal; in the male, it promotes the development of the tubules of the testes and the differentiation of sperm. FSH stimulates development of the graafian follicle, a small vesicle containing an egg, in the ovary of the female mammal; in the male, it promotes the development of the tubules of the... The history of H.R.T. (hormone replacement therapy) and E.R.T. (estrogen replacement therapy) and the role Dr. Robert A. Wilson and his book played in these choices for women. www.britannica.com /ebc/article-9034762   (914 words)

FSHR - follicle stimulating hormone receptor FSHR is a homologue of Fshr (follicle stimulating hormone receptor) from Mus musculus. A synthetic peptide corresponding to residues 645-653 in the carboxyl terminal cytoplasmic domain of the rat testicular follicle stimulating hormone receptor modulates G protein coupled-receptor signaling in rat testis membranes and in intact cultured rat Sertoli cells. The expression of the FSH receptor (FSHR) in Sertoli cells varies in vivo as a function of the stage of the cycle of the seminiferous epithelium and in culture as a result of the addition of exogenous hormones. www.ihop-net.org /UniPub/iHOP/gi/88431.html   (5010 words)

Immunometrics - Follicle Stimulating Hormone (FSH) EIA Test Kit Immunometrics - Follicle Stimulating Hormone (FSH) EIA Test Kit The assay is an immunometric ('sandwich') EIA for the quantitative measurement of FSH in human serum or plasma. FSH in the sample is bound by 2 monoclonal anti-FSH antibodies directed at different epitopes. www.immunometrics.co.uk /en_kit-FSH.htm   (227 words)

AllRefer Health - FSH (Follicle Stimulating Hormone) - Test/Medical Exams/Tests AllRefer Health - FSH (Follicle Stimulating Hormone) - Test/Medical Exams/Tests In the woman, FSH stimulates production of ovarian follicles (eggs) and estradiol (another reproductive hormone) during the first half of the menstrual cycle. FSH is a hormone secreted from the anterior pituitary gland. health.allrefer.com /health/fsh-info.html   (309 words)

Human Follicle Stimulating Hormone (FSH) ELISA Kit, Cat # 0200, FSH and LH are secreted by the basophilic cells of the anterior pituitary in response to the Gonadotropin-releasing hormone (GnRH) produced by the hypothalamus. The beta subunit structure differs among these hormones and determines specificity and biological action. Additionally, the hormone levels are used to assess the menstrual cycle for ovulation timing and monitoring of ovulation induction, determination of menopause and for monitoring endocrine therapy. www.4adi.com /kits/hormones/0200FSH.html   (568 words)

Follicle-Stimulating Hormone Test AHealthyMe.com FSH is a hormone that regulates the growth and development of eggs and sperm, and this test is used to diagnose or evaluate disorders involving the pituitary gland and reproductive system. The pituitary gland produces FSH, which stimulates the growth of the sacks (follicles) that surround the eggs in a woman's ovaries. FSH testing is performed if a physician suspects the patient may have a disorder involving the reproductive system or pituitary gland. www.ahealthyme.com /topic/topic100586839   (574 words)

eMedicine - Follicle-Stimulating Hormone Abnormalities : Article by Serge A Jabbour, MD Combined pituitary hormone deficiency: This results from a rare mutation in the gene encoding a transcription factor (PROP1), which is necessary for the differentiation of a cell type that is a precursor to somatotroph, lactotroph, thyrotroph, and gonadotroph cells, thus resulting in deficiencies in prolactin, thyroid-stimulating hormone (TSH), growth hormone (GH), FSH, and LH. Hormone replacement therapy should take into account all of these factors. FSH and LH are composed of alpha and beta subunits. www.emedicine.com /med/topic803.htm   (4895 words)

Agripedia Follicle Stimulating Hormone The follicle stimulating hormone is produced by the anterior pituitary and causes ovarian follicles to grow and to produce increasing amounts of estrogenic substances. www.ca.uky.edu /agripedia/GLOSSARY/fsh.htm   (32 words)

FOLLICLE STIMULATING HORMONE Follicle stimulating hormone, or FSH is a reproductive hormone secreted by the anterior pituitary gland. In women, FSH stimulates the production of ovarian follicles (eggs). An FSH assay measures the quantity of FSH in the blood. www.medhelp.org /glossary/new/GLS_1936.HTM   (99 words)

Recombinant Human Follicle Stimulating Hormone - HOR-253 Follicle Stimulating Hormone is a heterodimeric hormone consisting of 92amino acids a chain and 111 amino acids beta chain. Serum luteinizing hormone, follicle-stimulating hormone and oestradiol pattern in women undergoing pituitary suppression with different gonadotrophin-releasing hormone analogue protocols for assisted reproduction. Primary gonadal failure in men selectively amplifies the mass of follicle stimulating hormone (FSH) secreted per burst and increases the disorderliness of FSH release patterns: reversibility with testosterone replacement. www.prospec.co.il /~prospec/cart/catalog/rHuFSH.html   (333 words)

Day 3 FSH Fertility Test Follicle stimulating hormone (FSH) is one of the most important hormones involved in the natural menstrual cycle as well as in pharmacological (drug-induced) stimulation of the ovaries. FSH is the same hormone that is contained in the injectable gonadotropins which are used to produce multiple eggs for infertility treatment. Antral follicle counts and response of the ovaries to stimulation with injectable gonadotropins www.advancedfertility.com /day3fsh.htm   (1726 words)

WOOMB Home Page As a follicle develops, its content of granulosa cells increases and it produces rapidly increasing amounts of oestradiol and at the same time its requirements for FSH to maintain its rapid growth diminishes, that is, its threshold for FSH decreases. After rupture of the follicle and release of the ovum, both progesterone and oestradiol are secreted by the corpus luteum which forms from the ruptured follicle. Selection of the follicle which will ovulate is achieved by the following process. www.woomb.org /bom/science/physiology.html   (1327 words)

Follicle Stimulating Hormone and Pregnancy Follicle stimulating hormone (FSH) is a substance produced by the brain, specifically from the anterior pituitary gland. An FSH test is a blood test that may be used in combination with other tests to diagnose reproductive problems in both men and women such as low sperm counts and the absence of menses. A low FSH level might indicate a problem with the pituitary or hypothalamus (another area in the brain), whereas a high FSH level indicates a problem with the testes or ovaries themselves. www.clevelandclinic.org /health/health-info/docs/3500/3542.asp?index=11823&src=news   (533 words)

REPRODUCTIVE BIOLOGY: ON FOLLICLE-STIMULATING HORMONE As part of such treatments, women may receive courses of follicle-stimulating hormone (FSH) to stimulate the recruitment and maturation of many ovarian follicles. FSH shares an identical alpha-subunit with three other glycoprotein hormones: luteinizing hormone, which induces testosterone production in males and the final maturation of oocytes and subsequent ovulation in females; thyroid-stimulating hormone, which regulates thyroid function; and chorionic gonadotropin, which signals pregnancy. The structure shows that both hormone subunits are involved in determining the specificity of binding to the appropriate receptor, but that both charge and stereochemistry dictate specificity, with a role for alpha-subunit amino acids primarily in the stereochemical attributes. scienceweek.com /2005/sc050218-5.htm   (1737 words)

Healthopedia.com - FSH (Follicle-Stimulating Hormone) This is a blood test that measures the amount of follicle-stimulating hormone (FSH) produced by the pituitary gland. Fertility in men and women, as well as menstruation in women, are regulated by a complex interaction of hormones. The blood sample is sent to the laboratory to determine the amount of FSH circulating in the blood. www.healthopedia.com /fsh   (385 words)

fertility.com - Follicle-stimulating Hormone In females, the primary hormone responsible for the development of follicles in the ovaries is Follicle-stimulating Hormone (FSH), an essential step in the development of mature eggs (oocytes), capable of being fertilized. This is a condition whereby the body fails to produce the hormones that stimulate sperm production. Typical scenarios where FSH hormone treatments are used include: www.fertility.com /international/treatment/Female_Treatments/Second_Step/Follicle_stimulating_Hormone.jsp   (208 words)

Using an electrocautery strategy or recombinant follicle stimulating hormone to induce ovulation in polycystic ovary syndrome: randomised controlled trial -- Bayram et al. 328 (7433): 192 -- BMJ Ovarian electrocautery versus human menopausal gonadotrophins and pure follicle stimulating hormone therapy in the treatment of patients with polycystic ovarian disease. stimulating hormone in patients with polycystic ovary syndrome. was 49%, eliminating the need for recombinant follicle stimulating bmj.bmjjournals.com /cgi/content/full/328/7433/192   (2901 words)

SERUM FOLLICLE STIMULATING HORMONE The antibody-bound radiolabeled FSH is separated and the quantity is determined by counting on a gamma spectrometer. The radioimmunoassay technique is based on the competitive binding of the serum FSH and a radiolabeled FSH preparation. Results for the unknown are read from a curve prepared by plotting results for a set of known standards. www.cvmbs.colostate.edu /physio/arbl_endolab/serum_follicle_stimulating_hormo.htm   (177 words)

follicle-stimulating hormone Luteinizing hormone is needed to complete the process. It affects the ovaries in women, stimulating the production of an egg cell. In men, FSH stimulates the testes to produce sperm. www.tiscali.co.uk /reference/encyclopaedia/hutchinson/m0024911.html   (115 words)

follicle-stimulating hormone on Encyclopedia.com Reverse hemolytic plaque assay study of luteinizing and follicle-stimulating hormone and thyrotropin secretion in diabetic rat pituitary glands. Another Hormone Receptor May Be Involved In Development and Growth of Prostate Cancer. Replacement therapy: arginine vasopressin (AVP), growth hormone (GH), cortisol, thyroxine, testosterone and estrogen. www.encyclopedia.com /html/X/X-follicle.asp   (267 words)

Developmental Regulation of Follicle-Stimulating Hormone Receptor Messenger RNA Expression in the Baboon Fetal Ovary -- Zachos et al. 68 (5): 1911 -- Biology of Reproduction Follicle stimulating hormone is required for ovarian follicle maturation but not male fertility. Hormonal regulation of follicle-stimulating hormone receptor messenger ribonucleic acid levels in cultured rat granulosa cells. Changes in ovarian luteinizing hormone and follicle-stimulating hormone receptor content and in gonadotropin-induced ornithine decarboxylase activity during prepubertal and pubertal development of the female rat. www.biolreprod.org /cgi/content/full/68/5/1911   (4919 words)

Follicle Stimulating Hormone (FSH), Plasma For diagnostic purposes, the FSH findings should always be assessed in conjunction with the patient's medical history, clinical examination and other findings. No high dose hook effect at FSH concentrations of up to 2000 mIU/ml. No interference was observed from rheumatoid factors up to a concentration of 2250U/ml. www.medicine.uiowa.edu /path_handbook/handbook/test828.html   (269 words)

Luteinizing Hormone, Follicle Stimulating Hormone, estradiol After two years of extensive research, the makers of Tribistol® have identified the key components in the Bulgarian species of the plant Tribulus terrestris which are believed to increase the level of several hormones including Testosterone, the Luteinizing Hormone (LH), the Follicle Stimulating Hormone (FSH), and estradiol. Saponins (protodioscin is primary constituent) are believed to enable the body to produce more Luteinizing Hormone (LH) Tribistol® is standardized to these marker compounds, known as Protodioscin and Steroidal Saponins, making it the first standardized product, the most potent of any offered anywhere in the world. www.tribistol.net /bodybuilding.html   (313 words)

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