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Topic: Gonadotropin

Related Topics

Human chorionic gonadotropin

Chorionic gonadotropins

gonadotropin releasing hormone

Gonadotropin receptors

Gonadotropins, overview

Gonadotropin secretion, control of

Menopausal gonadotropin

Gonadotropin releasing factor

Precocious puberty, gonadotropin dependent

Gonadotropin hormone

Equine chorionic gonadotropin ECG

Gonadotropin deficiency

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	Gonadotropin - Wikipedia, the free encyclopedia
		A third human gonadotropin is human chorionic gonadotropin (hCG), produced by the placenta during pregnancy.
		Gonadotropin receptors are embedded in the surface of the target cell membranes and coupled to the G-protein system.
		Gonadotropins are released under the control of gonadotropin-releasing hormone (GnRH) from the arcuate nucleus of the hypothalamus.
	en.wikipedia.org /wiki/Gonadotropin (265 words)

	HCG (Human Chorionic Gonadotropin)
		Human chorionic gonadotropin, HCG, is a polypeptide hormone produced by the human placenta.
		Gonadotropin therapy is very effective in the prevention of testicular atrophy and to use the body?s own biochemical stimulating mechanisms to increase plasma testosterone level during training.
		For example, one may use gonadotropin for two to three weeks in the middle of a cycle, and for two or three weeks at the end of a cycle.
	gearpictures.com /des_hcg.htm (1693 words)

	MedicineOnline.com Drug Information: Chorionic Gonadotropin (Systemic)
		Chorionic gonadotropin (kor-ee-ON-ik goe-NAD-oh-troe-pin) is a drug whose actions are almost the same as those of luteinizing (loo-te-in-eye-ZING) hormone (LH), which is produced by the pituitary gland.
		In males, LH and chorionic gonadotropin stimulate the testes to produce male hormones such as testosterone.
		Chorionic gonadotropin is to be administered only by or under the immediate supervision of your doctor.
	www.medicineonline.com /druginfo/info2/Chorex/Chorionic_Gonadotropin_Systemic (1045 words)

	Pregnyl Online, Description, Chemistry, Ingredients - Chorionic Gonadotropin - RxList Monographs (Site not responding. Last check: 2007-11-05)
		Human chorionic gonadotropin (HCG), a polypeptide hormone produced by the human placenta, is composed of an alpha and a beta sub-unit.
		The alpha sub-unit is essentially identical to the alpha sub-units of the human pituitary gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH), as well as to the alpha sub-unit of human thyroid-stimulating hormone (TSH).
		PREGNYL® (chorionic gonadotropin for injection, USP) is a highly purified pyrogen-free preparation obtained from the urine of pregnant females.
	www.rxlist.com /cgi/generic3/chorionic.htm (217 words)

	Gonadotropin treatment for infertility - [Medication] - Quest Diagnostics Patient Health Library (Site not responding. Last check: 2007-11-05)
		Gonadotropins therefore play a part in egg and sperm production, as well as female and male physical traits such as voice, muscle, hair, and breast development.
		Gonadotropins are given by injection to help the body make hormones needed for egg or sperm production.
		Gonadotropins should only be used by doctors who are specially trained in infertility and who are familiar with the management of possible complications.
	www.questdiagnostics.com /kbase/topic/detail/drug/hw201764/detail.htm (737 words)

	NEL, Testosterone and gonadotropin levels in men with dementia
		We wanted to assess levels of pituitary gonadotropins that regulate sex steroid levels, to determine whether primary or secondary hypogonadism was responsible for low levels of testosterone in cases.
		Gonadotropins (follicle stimulating hormone or FSH and luteinizing hormone or LH), sex hormone binding globulin (SHBG, which determines the amount of free testosterone) and testosterone were measured using enzyme immunoassays.
		This is contrary to an earlier study (Bowen, 1999) that found raised levels of gonadotropins in cases with AD, suggesting primary hypogonadism.
	www.nel.edu /24_34/NEL243403A09_Hogervorst.htm (382 words)

	Human Chorionic Gonadotropin (hCG)
		The human chorionic gonadotropin (hCG) test is done to measure the amount of the hormone hCG in blood or urine to determine whether a woman is pregnant.
		If you are pregnant, levels of human chorionic gonadotropin (hCG) that are higher than expected can indicate a multiple pregnancy (such as twins or triplets), a molar pregnancy, Down syndrome, or may suggest that you are further along in an early pregnancy than estimated by your last menstrual period (LMP).
		A urine test for human chorionic gonadotropin (hCG) done very early in pregnancy (during the first week after implantation) or done on a urine sample taken in the middle of the day may not always detect early pregnancy.
	www.webmd.com /hw/being_pregnant/hw42062.asp (1900 words)

	Human Chorionic Gonadotropin/Robert Maragoul
		Human chorionic gonadotropin (hCG) is a glycoprotein hormone that was originally identified by virtue of its involvement in reproduction.
		Hormones are produced by the endocrine glands and are transported by the bloodstream to target organs that contain cells that respond specifically to particular hormones.
		Human chorionic gonadotropin (hCG) which is a pregnancy hormone is a heterodimeric glycoprotein gormone that is involved in activation of the adenylate-cyclase system in luteal cells, which is essential for the maintenance of the corpus luteum in early pregnancy.
	wwwchem.csustan.edu /chem4400/SJBR/maragoul.htm (2143 words)

	Blockage of gonadotropin-induced first ovulation caused by thyroidectomy and its possible mechanisms in rats -- Tamura ...
		Concentrations of gonadotropins, inhibin (35, 41), and prolactin (37) were determined by RIA as previously reported.
		Ovarian gonadotropin receptors during experimental ovarian cyst formation in the rat.
		Evidence for the involvement of corticotropin-releasing factor in the inhibition of gonadotropin release induced by hyperprolactinemia.
	ajpendo.physiology.org /cgi/content/full/275/3/E380 (3287 words)

	Detection of Early Pregnancy Forms of Human Chorionic Gonadotropin by Home Pregnancy Test Devices -- Butler et al. 47 ... (Site not responding. Last check: 2007-11-05)
		Serum human chorionic gonadotropin (hCG) levels throughout normal and abnormal pregnancy as measured with the Hybritech Tandem-R immunoradiometric assay Continuing Education Technical Brochure 1985:1-4 Hybritech San Diego, CA.
		Early pregnancy human chorionic gonadotropin (hCG) isoforms measured by an immunometric assay for choriocarcinoma-like hCG.
		and ß subunits of human chorionic gonadotropin from normal and aberrant pregnancy and choriocarcinoma.
	www.clinchem.org /cgi/content/full/47/12/2131 (3602 words)

	Guidance for Over-the-Counter (OTC) Human Chorionic Gonadotropin (hCG) 510(k)s (Site not responding. Last check: 2007-11-05)
		HCG is closely related to two other gonadotropins, luteinizing hormone (LH) and follicle stimulating hormone (FSH), as well as thyroid stimulating hormone (TSH), all three of which are glycoprotein hormones.
		Brody S and Carlstrom G. Immunoassay of human chorionic gonadotropin in normal and pathologic pregnancy.
		Clinical relevance of research on the structure of human chorionic gonadotropin.
	www.fda.gov /cdrh/ode/guidance/1172.html (2535 words)

	Endometrial Cups and Secretion of Equine Chorionic Gonadotropin
		This hormone is also called pregnant mare's serum gonadotropin and is actually equine luteinizing hormone.
		The source of eCG is a placenta-associated structure called an endometrial cup, which is derived from the fetus, forms several weeks into gestation, and is immunologically destroyed 2 to 3 months later.
		However, in donkeys carrying a hinney fetus, the cups develop to a much larger size and considerably higher concentrations of eCG are achieved than in donkeys carrying a donkey fetus.
	arbl.cvmbs.colostate.edu /hbooks/pathphys/reprod/placenta/endocups.html (689 words)

	Gonadotropin Induction of Ovulation and Corpus Luteum Formation in Young Estrogen Receptor-{alpha} Knockout Mice -- ...
		Gonadotropin Induction of Ovulation and Corpus Luteum Formation in Young Estrogen Receptor-{alpha} Knockout Mice -- Rosenfeld et al.
		KO and WT mice, sera and ovaries from gonadotropin- and saline-treated
		Gonadotropin treatment of young 3 to 5-wk-old WT (Fig.
	www.biolreprod.org /cgi/content/full/62/3/599 (3568 words)

	Human Chorionic Gonadotropin (hCG), Beta Subunit, Quantitative, Serum
		The quantitative hCG assay should be used for nonroutine detection of hCG (eg, ectopic pregnancy, threatened abortions, miscarriages, or very early pregnancy).
		Human chorionic gonadotropin, a glycoprotein hormone, which is normally produced by the developing placenta, and aberrantly produced by some germ cell neoplasms, is composed of glycopeptide
		Chorionic gonadotropin assays are sometimes used to support the diagnosis of ectopic pregnancy.
	www.labcorp.com /datasets/labcorp/html/chapter/mono/ri020200.htm (443 words)

	Human chorionic gonadotropin and hyperemesis gravidarum
		The role of chorionic gonadotropin in transient hyperthyroidism of hyperemesis gravidarum.
		Goodwin TM, Hershman JM, Cole L. Increased concentration of the free beta-subunit of human chorionic gonadotropin in hyperemesis gravidarum.
		Increased in vitro thyrotropic activity of partially sialated human chorionic gonadotropin extracted from hydatidiform moles of patients with hyperthyroidism.
	www.nvp-volumes.org /p1_3.htm (1437 words)

	Human Chorionic Gonadotropin (HCG) ELISA Kit, Cat # 0400,
		Therefore, specific antibodies made to the beta subunits are used for the specific determination of HCG and other hormones.
		Human Chorionic Gonadotropin is a glycoprotein hormone produced by the trophoblastic cells of the developing placenta at the time of blastocyst implantation.
		The appearance of HCG in serum and urine, as early as 7-10 days after conception and its rapid rise in concentration are the most reliable indication for early diagnosis of pregnancy.
	www.4adi.com /kits/hormones/0400HCG.html (681 words)

	gonadotropin.org: Presenter - William Keye, MD (Site not responding. Last check: 2007-11-05)
		Keye WR, Jr, Kelch RP, Niswender GD, Jaffe, RB: Quantitation of endogenous and exogenous gonadotropin releasing hormone by radioimmunoassay.
		Keye WR, Jr, Jaffe RB: Modulation of gonadotropin response to gonadotropin releasing hormone by estradiol.
		Keye WR, Jr, Young JR, Jaffe RB: Hypothalamic gonadotropin releasing hormone: Physiologic and clinical considerations.
	www.gonadotropin.org /Keye_cv.htm (4340 words)

	Sexual precocity and recurrent {beta}-human chorionic gonadotropin upsurges preceding the diagnosis of a malignant ...
		Sexual precocity and recurrent {beta}-human chorionic gonadotropin upsurges preceding the diagnosis of a malignant mediastinal germ-cell tumor in a 9-year-old boy -- Schwabe et al.
		Sexual precocity and recurrent ß-human chorionic gonadotropin upsurges preceding the diagnosis of a malignant mediastinal germ-cell tumor in a 9-year-old boy
		Comparison of human chorionic gonadotropin and pregnancy-specific ß1-glycoprotein in nonpregnant patients undergoing hemodialysis.
	annonc.oxfordjournals.org /cgi/content/full/13/6/975 (1332 words)

	Gonadotropin-Releasing Hormone Deficiency in the Human (Idiopathic Hypogonadotropic Hypogonadism and Kallmann's ...
		gonadotropins are undetectable in the serum and pituitaries
		Gonadotropin secretion was determined by 10-min blood sampling.
		Wildt L, Schwilden H, Wesner G, Roll C, Brensing K-A, Luckhaus J, Bahr M, Leyendecker G 1983 The pulsatile pattern of gonadotropin secretion and follicular development during the menstrual cycle and in women with hypothalamic and hyperandrogenic amenorrhea.
	edrv.endojournals.org /cgi/content/full/19/5/521 (8145 words)

	EPA - Endocrine \| Biological Action of Gonadotropin-Releasing Hormone in Lampreys
		Before these analogs could be made, numerous studies were (and are)necessary for the basic understanding on how these substances function.
		One of the major goals of the Fisheries Commission isthe development of a lamprey control program that will include not only the use oflamprey poisons in streams but also the development of contraceptive methods forreducing the numbers of sea lampreys in the Great Lakes Region.
		Theseinvestigations will include if gonadotropin- releasing hormone and analogs could beused to inhibit by sterilization or control reproduction in lampreys as a complementarymethod in maintaining numbers of lampreys in the Great Lakes.
	www.epa.gov /endocrine/inventory/NSF-040.html (310 words)

	News - Obese Women Need Higher Doses of Gonadotropin during Assisted Pregnancy: Presented at ASRM
		MONTREAL, QC -- October 19, 2005 -- Obese women might require higher doses of gonadotropin during assisted pregnancy, possibly due to a larger volume of distribution, according to study results presented here at the annual meeting of the American Society of Reproductive Medicine (ASRM).
		The study also found that ovulatory obese women are no less likely to become pregnant during assisted pregnancy than women who are not obese, said lead investigator William Dodson, MD, Professor, Department of Obstetrics and Gynecology, Penn State University, Hershey, Pennsylvania, United States.
		His study contrasts with other studies in that it looked only at women with evidence of ovulation, whereas most other studies have not distinguished between ovulatory and anovulatory women, he said.
	www.docguide.com /news/content.nsf/news/8525697700573E188525709F0062D9BF (605 words)

	HCG - Gonadotropin. Human chorionic gonadotropin ( HCG )
		HCG (chorionic gonadotropin) is not an anabolic steroid.
		HCG (chorionic gonadotropin) is packaged in two ampules one contains HCG powder and the other physiological solution, the two compounds are mixed prior to injecting.
		In additon the use of steroids without doctors prescriptions may have severe side effects to your helt up to and including death.
	xtremepharma.freewebpage.org /hcg.htm (246 words)

	NEJM -- Second-Trimester Serum Chorionic Gonadotropin Concentrations and Complications and Outcome of Pregnancy
		NEJM -- Second-Trimester Serum Chorionic Gonadotropin Concentrations and Complications and Outcome of Pregnancy
		Second-Trimester Serum Chorionic Gonadotropin Concentrations and Complications and Outcome of Pregnancy
		women in whom chorionic gonadotropin was measured during the
	content.nejm.org /cgi/content/abstract/341/27/2033 (465 words)

	Pulsatile GnRH or human chorionic gonadotropin/human menopausal gonadotropin as effective treatment for men with ...
		Stimulatory therapy with either GnRH or gonadotropins is an effective treatment to induce spermatogenesis and achieve paternity in men with secondary hypogonadism.
		A total of 5 7 treatment courses were initiated for induction of spermatogenesis, 36 of these for the purpose of induction of pregnancy in the female partner.
		It remains to be determined whether highly purified urinary gonadotropin preparations or recombinant LH and FSH will provide therapeutic advantages.
	www.eje-online.org /cgi/content/abstract/139/3/298 (656 words)

	Luteinizing Hormone and Human Chorionic Gonadotropin Decrease Type 2 5{alpha}-Reductase and Androgen Receptor Protein ...
		on circulating and/or locally produced gonadotropins are not known.
		1990 The presence of gonadotropin receptors in nonpregnant human uterus, human placenta, fetal membranes, and decidua.
		The presence of functional luteinizing hormone/chorionic gonadotropin receptors in human prostate cell lines.
	jcem.endojournals.org /cgi/content/full/83/5/1776 (2587 words)

	Influence of mutations affecting gonadotropin production or responsiveness on expression of inhibin subunit mRNA and ...
		Influence of mutations affecting gonadotropin production or responsiveness on expression of inhibin subunit mRNA and protein in the mouse ovary -- Hirst et al.
		in the absence of gonadotropin synthesis, in FSHß;
		Rivier C, Schwall R, Mason A, Burton L and Vale W 1991 Effect of recombinant inhibin on gonadotropin secretion during proestrus and estrus in the rat.
	www.reproduction-online.org /cgi/content/full/128/1/43 (4732 words)

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