Estrone

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File:Estron.svg Estrone
3-hydroxy-13-methyl- 6,7,8,9,11,12,13,14,15,16- decahydrocyclopenta[a]phenanthren- 17- one IUPAC name
CAS number 53-16-7	ATC code G03CA07 .
PubChem 5870	DrugBank APRD00588
Chemical formula	{{{chemical_formula}}}
Molecular weight	270.366 g/mol
Bioavailability
Metabolism
Elimination half-life	19 hours
Excretion
Pregnancy category
Legal status
Routes of administration

Estrone (also oestrone) is an estrogenic hormone secreted by the ovary as well as adipose.

Estrone is one of the three estrogens, which also include estriol and estradiol. Estrone is the least abundant of the three hormones, estradiol is present almost always in the reproductive female body, and estriol is abundant primarily during pregnancy.

Estrone is relevant to health and disease states because of its conversion to estrone sulfate, a long-lived derivative. Estrone sulfate acts as a reservoir that can be converted as needed to the more active estradiol.

Estrone is the only one of the three estrogens which is present in any quantity in post-menopausal women.

[edit] Synthesis

Estrone is synthesized via aromatase from androstenedione, a derivative of progesterone. The conversion consists of the de-methylation of C-19 and the aromaticity of the 'A' ring. This reaction is similar to the conversion of testosterone to estradiol.

[edit] Additional images

Androstenedione converting to estrone.

Steroidogenesis.png Steroidogenesis

This box: view • talk • edit Sex hormones and related agents (primarily G03, also L02, H01C) - human endogenous in CAPS
Progestogens: (receptor)	PROGESTERONE, Desogestrel, Drospirenone, Dydrogesterone, Ethisterone, Etonogestrel, Ethynodiol diacetate, Gestodene, Gestonorone, Levonorgestrel, Lynestrenol, Medroxyprogesterone, Megestrol, Norelgestromin, Norethisterone, Norethynodrel, Norgestimate, Norgestrel, Norgestrienone, Tibolone Antiprogestogen: Mifepristone
Androgens: (receptor)	TESTOSTERONE, Androstanolone, Fluoxymesterone, Mesterolone, Methyltestosterone, (see also anabolic steroids) Antiandrogens: Bicalutamide, Cyproterone, Flutamide, Nilutamide, Spironolactone
Estrogens: (receptor)	ESTRADIOL, ESTRIOL, ESTRONE, Chlorotrianisene, Dienestrol, Diethylstilbestrol, Ethinylestradiol, Fosfestrol, Mestranol, Polyestradiol phosphate Selective estrogen receptor modulator: Bazedoxifene, Clomifene, Fulvestrant, Raloxifene, Tamoxifen, Toremifene Aromatase inhibitor: Aminogluthetimide, Anastrozole, Exemestane, Formestane, Letrozole, Vorozole
Gonadotropins: (FSHR/LHCGR)	ovulation stim.: Clomifene, Urofollitropin Antigonadotropins: Danazol, Gestrinone
GnRH: (receptor)	agonist: Buserelin, Goserelin, Histrelin, Leuprorelin, Nafarelin, Triptorelin antagonist: Abarelix, Cetrorelix, Ganirelix

Template:Cholesterol and steroid intermediates

This page uses content from the English-language version of Wikipedia. The original article was at Esterone. The list of authors can be seen in the page history. As with Psychology Wiki, the text of Wikipedia is available under the GNU Free Documentation License.