Gonadotropins
Research News and Information

Monday, November 23, 2009

Effects of oral contraceptives or a gonadotropin-releasing hormone agonist on ovarian carcinogenesis in genetically engineered mice.

6 Sep 2009 Although epidemiologic evidence for the ability of combined oral contraception (OC) to reduce the risk of ovarian cancer (OvCa) is convincing, the biological mechanisms underlying this effect are largely unknown. We conducted the present study to ... Read more...

Adrenocorticotropic hormone suppresses gonadotropin-stimulated estradiol release from zebrafish ovarian follicles.

29 Jul 2009 While stress is known to impact reproductive performance, the pathways involved are not entirely understood. Corticosteroid effects on the functioning of the hypothalamus-pituitary-gonadal axis are thought to be a key aspect of stress-mediated ... Read more...

A man with hypogonadotropic hypogonadism successfully treated with nasal administration of the low-dose gonadotropin-releasing hormone analog buserelin.

7 Jul 2009 OBJECTIVE: To report a patient with hypogonadotropic hypogonadism of hypothalamic origin successfully treated with nasal administration of a low-dose gonadotropin-releasing hormone (GnRH) analogue. DESIGN: Case report. SETTING: A reproductive ... Read more...

Latest indexed articles for 'Gonadotropins'

These are the very latest articles for this heading:

• Effects of oral contraceptives or a gonadotropin-releasing hormone agonist on ovarian carcinogenesis in genetically engineered mice. 6 Sep 2009
• Initial investigation of amenorrhoea. 2 Aug 2009
• Adrenocorticotropic hormone suppresses gonadotropin-stimulated estradiol release from zebrafish ovarian follicles. 29 Jul 2009
• A man with hypogonadotropic hypogonadism successfully treated with nasal administration of the low-dose gonadotropin-releasing hormone analog buserelin. 7 Jul 2009
• [In vitro stimulation of oocyte ovulation in teleosts by gonadotropic and steroid hormones] 29 Jun 2009
• Neonatal estrogenic effects upon the male rat pituitary: early gonadotrophin attenuation precedes long-term recovery. 28 Jun 2009
• Timing of the ovarian circadian clock is regulated by gonadotropins. 9 Jun 2009
• Dynamic changes in ovarian follicles measured by ultrasonography during gonadotropin stimulation in rhesus monkeys. 3 Jun 2009
• Androgens and Alzheimer's disease. 30 May 2009
• Successful piglet production in a chemically defined system for in-vitro production of porcine embryos: dibutyryl cyclic amp and epidermal growth factor-family peptides support in-vitro maturation of oocytes in the absence of gonadotropins. 12 May 2009
• The signal pathway of gonadotrophins-induced mammalian oocyte meiotic resumption. 12 May 2009
• Oestrogen-induced androgen insufficiency results in a reduction of proliferation and differentiation of spermatogonia in the zebrafish testis. 4 May 2009
• Drug delivery for in vitro fertilization: rationale, current strategies and challenges. 3 May 2009
• Seasonal relationship between gonadotropin, growth hormone, and estrogen receptor mRNA expression in the pituitary gland of largemouth bass. May 2009
• Effect of vanadate on the chromatin configuration in pig GV-oocytes. 28 Apr 2009
• Brain aromatization: classic roles and new perspectives. 26 Apr 2009
• Oocyte retrieval versus conversion to intrauterine insemination in patients with poor response to gonadotropin therapy. 23 Apr 2009
• Ovarian steroidogenesis inhibition by constant photothermal conditions is caused by a lack of gonadotropin stimulation in Eurasian perch. 19 Apr 2009
• Combined transdermal testosterone gel and the progestin nestorone suppresses serum gonadotropins in men. 12 Apr 2009
• Evidence that RF-amide related peptides are inhibitors of reproduction in mammals. 7 Apr 2009

See a longer list of these articles.

Technical information about 'Gonadotropins'

Definition: Hormones that stimulate gonadal functions such as GAMETOGENESIS and sex steroid hormone production in the OVARY and the TESTIS. Major gonadotropins are glycoproteins produced primarily by the adenohypophysis (GONADOTROPINS, PITUITARY) and the placenta (CHORIONIC GONADOTROPIN). In some species, pituitary PROLACTIN and PLACENTAL LACTOGEN exert some luteotropic activities.

Registry Number: 0

Descriptor UI: D006062

Alternative terms: Gonadotropins; Gonadotropin;

Related Mesh Headings: Receptors, Gonadotropin;

Allowable Qualifiers: administration & dosage; adverse effects; analysis; antagonists & inhibitors; biosynthesis; blood; cerebrospinal fluid; chemical synthesis; classification; deficiency; diagnostic use; economics; genetics; history; immunology; isolation & purification; metabolism; pharmacokinetics; pharmacology; physiology; poisoning; radiation effects; secretion; standards; supply & distribution; therapeutic use; toxicity; urine; chemistry; contraindications; agonists;

Tree Number: D06.472.699.322;

Technical Notes: GEN; prefer specifics