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Encyclopedia > Estriol
Chemical structure of estriol
Chemical structure of estriol

Estriol (also oestriol) is one of the three main estrogens produced by the human body. It is only produced in significant amounts during pregnancy as it is made by the placenta. Image File history File links Download high resolution version (2928x1613, 15 KB) * Description: Chemical structure of Estriol. ... Image File history File links Download high resolution version (2928x1613, 15 KB) * Description: Chemical structure of Estriol. ... Estriol. ... The term trimester redirects here. ... The placenta is an ephemeral (temporary) organ present only in female placental vertebrates during gestation (pregnancy). ...


Levels of estriol in non-pregnant women do not change much after menopause, and levels are not significantly different from levels in men. Menopause is the physiological cessation of menstrual cycles associated with advancing age in species that experience such cycles. ...


Estriol levels can be measured to give an indication of the general health of the fetus. DHEA is produced by the adrenal cortex of the fetus, this is converted to estriol by the placenta. Dehydroepiandrosterone (DHEA) is a natural steroid hormone produced from cholesterol by the adrenal glands. ... Layers of cortex. ... The placenta is an ephemeral (temporary) organ present only in female placental vertebrates during gestation (pregnancy). ...


If levels are abnormally low in a pregnant woman, this may indicate a problem with the development in the child.


Molecaular weight: 288.39


External links


PubChem is a database of chemical molecules . ...

Sex hormones and related medications (primarily G03, also L02, H01C) edit
Progestogens:
(receptor)

Desogestrel, Drospirenone, Dydrogesterone, Ethisterone, Etonogestrel, Ethynodiol diacetate, Gestodene, Gestonorone, Levonorgestrel, Lynestrenol, Medroxyprogesterone, Megestrol, Norelgestromin, Norethisterone, Norethynodrel, Norgestimate, Norgestrel, Norgestrienone, Progesterone, Tibolone
Antiprogestogen: Mifepristone Sex hormones are hormones that affect the reproductive system. ... A section of the Anatomical Therapeutic Chemical Classification System. ... A section of the Anatomical Therapeutic Chemical Classification System. ... A section of the Anatomical Therapeutic Chemical Classification System. ... Progestagens (also spelled progestogens or gestagens) are hormones which produce effects similar to progesterone, the only natural progestagen. ... The progesterone receptor is an intracellular steroid receptor that specifically binds progesterone. ... A progestin is a synthetic progestagen. ... A progestin is a synthetic progestagen. ... Dydrogesterone is a progestogen hormone. ... Ethisterone is a progestogen hormone. ... Etonogestrel is a molecule used in hormonal contraceptives. ... A progestin is a synthetic progestagen. ... Gestodene is a molecule used in hormonal contraceptives. ... Gestonorone is a progestagen hormone. ... Progesterone is a steroid hormone involved in the female menstrual cycle, pregnancy (supports gestation) and embryogenesis of humans and other species. ... Lynestrenol is a progestagen hormone. ... Medroxyprogesterone is a molecule used in hormonal contraceptives. ... Megestrol is a molecule used in hormonal contraceptives. ... Norelgestromin is a molecule used in hormonal contraceptives. ... Norethisterone (or norethindrone) is a molecule used in hormonal contraceptives. ... Norethynodrel was the progestin used in Enovid, the first oral contraceptive. ... A progestin is a synthetic progestagen. ... A progestin is a synthetic progestagen. ... Norgestrienone is a progestogen hormone. ... Progesterone is a C-21 steroid hormone involved in the female menstrual cycle, pregnancy (supports gestation) and embryogenesis of humans and other species. ... Tibolone is a synthetic hormone-type drug. ... Mifepristone is a synthetic steroid compound used as a pharmaceutical. ...

Androgens:
(receptor)

Androstanolone, Fluoxymesterone, Mesterolone, Methyltestosterone, Testosterone, (see also anabolic steroids)
Antiandrogens: Bicalutamide, Cyproterone, Flutamide, Nilutamide, Spironolactone Androgen is the generic term for any natural or synthetic compound, usually a steroid hormone, that stimulates or controls the development and maintenance of masculine characteristics in vertebrates by binding to androgen receptors. ... The androgen receptor is an intracellular steroid receptor that specifically binds testosterone and dihydrotestosterone. ... Dihydrotestosterone (DHT) (Full name: 5α-Dihydrotestosterone, abbreviating to 5α-DHT; INN: androstanolone) is a biologically active metabolite of the hormone testosterone, formed primarily in the prostate gland, testes, hair follicles, and adrenal glands by the enzyme 5α-reductase by means of reducing the Δ4,5 double-bond. ... Fluoxymesterone is an androgen hormone. ... Mesterolone is an androgen hormone. ... Methyltestosterone is a hormone used to treat men with a testosterone deficiency. ... Testosterone is a steroid hormone from the androgen group. ... Anabolic steroids are a class of natural and synthetic steroid hormones that promote cell growth and division, resulting in growth of muscle tissue and sometimes bone size and strength. ... An antiandrogen, or androgen antagonist, is any of a group of hormone antagonist compounds that are capable of preventing or inhibiting the biologic effects of androgens, male sex hormones, on normally responsive tissues in the body (see androgen insensitivity syndrome). ... Bicalutamide is an oral non-steroidal anti-androgen for prostate cancer. ... Cyproterone acetate (Androcur®, Cyprostat®) is an antiandrogen, i. ... Flutamide is an oral antiandrogen drug primarily used to treat prostate cancer. ... Nilutamide is an antiandrogen medication used in the treatment of advanced stage prostate cancer. ... Spironolactone (marketed as Aldactone or Spiritone) is a synthetic 17-lactone steroid which is a renal competitive aldosterone antagonist in a class of pharmaceuticals called potassium-sparing diuretics, used primarily to treat low-renin hypertension, hypokalemia, and Conns syndrome. ...

Estrogens:
(receptor)

Chlorotrianisene, Dienestrol, Diethylstilbestrol, Estradiol, Estriol, Estrone, Ethinylestradiol, Fosfestrol, Mestranol, Polyestradiol phosphate
Selective estrogen receptor modulator: Bazedoxifene, Clomifene, Fulvestrant, Raloxifene, Tamoxifen, Toremifene
Aromatase inhibitor: Aminogluthetimide, Anastrozole, Exemestane, Formestane, Letrozole, Vorozole Estriol. ... The estrogen receptor is a receptor for estradiol (the main endogenous estrogen); it is located intracellularly, in parallel with other steroid hormone receptors. ... Chlorotrianisene is a synthetic estrogen. ... Dienestrol is a synthetic estrogen. ... Diethylstilbestrol (DES) is a drug, a synthetic nonsteroidal estrogen that was first synthesized in 1938. ... Estradiol (17β-estradiol) (also oestradiol) is a sex hormone. ... Structural formula of estrone Estrone is an estrogenic hormone secreted by the ovary. ... Ethinylestradiol, also ethinyl estradiol (EE), is a synthetic derivative of estradiol. ... Fosfestrol is a estrogen used as an antineoplastic agent. ... Mestranol is the 3-methyl ether of ethinylestradiol. ... Polyestradiol phosphate is an estrogen used as an antineoplastic agent. ... Selective estrogen receptor modulators (SERMs) is a class of medication that acts on the estrogen receptor. ... Bazedoxifene is a selective estrogen receptor modulator (SERM), developed by Wyeth Pharmaceuticals. ... Clomifene (INN) or clomiphene (USAN and former BAN) is a selective estrogen receptor modulator (SERM), used mainly in female infertility due to anovulation (e. ... Fulvestrant is a drug treatment of hormone receptor positive metastatic breast cancer in post-menopausal women with disease progression following anti-estrogen therapy. ... Raloxifene is an oral selective estrogen receptor modulator which is used in the prevention of osteoporosis in postmenopausal women. ... Tamoxifen is an oral selective estrogen receptor modulator which is used in breast cancer treatment, and is currently the worlds largest selling breast cancer treatment. ... Toremifene is an oral selective estrogen receptor modulator (SERM) which helps oppose the actions of estrogen in the body. ... Aromatase inhibitors (AI) are a class of drugs used in the treatment of breast cancer in post- menopausal women. ... Aminoglutethimide is a first generation aromatase inhibitor used in the treatment of breast cancer and Cushings syndrome. ... Anastrozole (Arimidex) is a drug used to treat breast cancer in post-menopausal women. ... Exemestane (Trade name: Aromasin®) is an oral steroidal aromatase inhibitor used in the treatment of hormonally-responsive breast cancer. ... Formestane is an enzyme inhibitor used as an antineoplastic agent. ... Letrozole (INN, trade name Femara®) is an oral non-steroidal aromatase inhibitor that has been introduced for the adjuvant treatment of hormonally-responsive breast cancer. ... Vorozole is an enzyme inhibitor used as an antineoplastic agent. ...

Gonadotropins:
(FSHR/LHCGR)

ovulation stim.: Clomifene, Urofollitropin
Antigonadotropins: Danazol, Gestrinone Gonadotropins are protein hormones secreted by gonadotrope cells of the pituitary gland of vertebrates. ... The follicle stimulating hormone receptor or FSH-receptor (FSHR) is a transmembrane receptor that interacts with the follicle stimulating hormone (FSH) and represents a G protein-coupled receptor (GPCR). ... The luteinizing hormone/choriogonadotropin receptor (LHCGR), also lutropin/choriogonadotropin receptor (LCGR) is a transmembrane receptor that interacts with both luteinizing hormone (LH) and chorionic gonadotropins (such as hCG in humans) and represents a G protein-coupled receptor (GPCR). ... Ovulation is the process in the menstrual cycle by which a mature ovarian follicle ruptures and discharges an ovum (also known as an oocyte, female gamete, or casually, an egg) that participates in reproduction. ... Clomifene (INN) or clomiphene (USAN and former BAN) is a selective estrogen receptor modulator (SERM), used mainly in female infertility due to anovulation (e. ... Urofollitropin (brand names Bravelle®, Fertinex®, Follistim®, and Gonal-F®)is a purified form of follicle-stimulating hormone (FSH). ... Danazol is a derivative of the synthetic steroid ethisterone, a modified testosterone. ... Gestrinone is a synthetic steroid hormone that acts as an anti-progestin and also has some androgenic activity. ...

GnRH:
(receptor)

Gonadotropin-releasing hormone agonist: Buserelin, Goserelin, Leuprorelin, Nafarelin, Triptorelin
Gonadotropin-releasing hormone antagonist: Histrelin, Abarelix Gonadotropin-releasing hormone 1 (GNRH1 also called LHRH) is a peptide hormone responsible for the release of FSH and LH from the anterior pituitary. ... Gonadotropin-releasing hormone receptor (GNRHR) is a member of the seven-transmembrane, G-protein coupled receptor (GPCR) family. ... A gonadotropin-releasing hormone agonist (GnRH agonist) is a synthetic peptide modeled after the hypothalamic neurohormone GnRH that interacts with its receptor to elicit its biologic response, the release of the pituitary hormones FSH and LH. Agonists do not quickly dissociate from the GnRH receptor. ... Buserelin is a gonadotropin releasing hormone agonist (GnRH agonist). ... Goserelin is an injectable luteinising hormone-releasing hormone analogue (LHRHa). ... Leuprolide is a gonadotropin releasing hormone agonist (GnRH agonist). ... Nafarelin is a gonadotropin releasing hormone agonist (GnRH agonist). ... Triptorelin is a gonadotropin releasing hormone agonist (GnRH agonist). ... A gonadotropin-releasing hormone antagonist (GnRH antagonist) is a synthetic peptide that competes with the neurohormone GnRH for its receptor, thus decreasing or blocking GnRH action. ... Histrelin acetate is an injectable gonadotropin releasing hormone antagonist (GnRH antagonist). ... Abarelix also called plenaxis is a drug used to reduce the amount of testosterone made in patients with advanced symptomatic prostate cancer for which no other treatment options are available. ...

Shortcut E3.


  Results from FactBites:
 
Estriol - Wikipedia, the free encyclopedia (143 words)
Estriol (also oestriol) is one of the three main estrogens produced by the human body.
Levels of estriol in non-pregnant women do not change much after menopause, and levels are not significantly different from levels in men.
DHEA is produced by the adrenal cortex of the fetus, this is converted to estriol by the placenta.
Estriol (4552 words)
Estriol containing cream is suitable for the treatment of chronic vaginitis and cystitis developed on the base of climacteric epithelium atrophy of urogenital system.
The agents hyaluronidase, estriol, and base cream (as a control) were applied topically to separate animal groups for 5 weeks, and their effects were studied on tissue expansion.
Estriol was administered for a six-month period as estrogen replacement therapy to 52 symptomatic postmenopausal women.
  More results at FactBites »


 

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