Estradiol

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estradiol

[‚es·trə′dī‚ȯl]
(biochemistry)
C18H24O2 An estrogenic hormone produced by follicle cells of the vertebrate ovary; provokes estrus and proliferation of the human endometrium, and stimulates ICSH (interstitial-cell-stimulating hormone) secretion.

Estradiol

 

C18H24O2, a female sex hormone of the estrogen group with the structural formula

Estradiol occurs as colorless crystals with a melting point of 176°–178°C. Poorly soluble in water, it dissolves better in organic solvents. It is optically active, with a specific rotation of [α]D= +81°.

Estradiol was first isolated in 1935 from the follicular fluid of the ovaries of swine by the American biochemist E. Doisy. Of all the estrogens, it has the highest physiological activity, but it is rapidly inactivated in the body. Longer-acting preparations of estradiol (estradiol dipropionate and estradiol benzoate) are obtained by the esterization of estradiol with various organic acids. Estradiol has important physiological functions (seeESTROGEN).

References in periodicals archive ?
Bedol is represented by counsel, the latter cannot be properly notified by the court as he has already moved out of his address.
But media companies are being savvier about the threats and opportunities of Internet video, according to Bedol, who before founding Bedrocket sold cable sports networks to CBS and ESPN.
Bedol transforms traditional household and of-rice items with a fun and edgy spin.
Adds Bedol, "We are going to broadcast 10,000 live events online during the coming year, and we felt it was important to make the experience the best it can be for our business partners as well as our shared consumers.
Bedol was also a co-founder of The Classic Sports Network, a cable channel that became popular with nongame sports programming such as documentaries and nostalgia shows.
Its leaders, Brian Bedol and Stephen Greenberg, formed the Classic Sports Network in 1995 and later sold it to ESPN.
Jim Pallotta, co-owner of the Boston Celtics, and Brian Bedol, founder of sports television channels Classic Sports Network and CSTV (now ESPN Classic and CBS College Sports, respectively), also participated in the Series A funding.
and former Comelec election officer Lintang Bedol with electoral fraud involving the 2007 elections in Maguindanao province.
In the end we ended up having sandwiches at Y Bedol pub in Tal-y-Bont.
Exec producer and Bedrocket CEO) Brian Bedol knows my work generates a lot of (Web) traffic, so the project will be valuable in some form," Birbiglia says.
Celebrations will carry on into the evening thanks to The Bedol, The Bull and The Lodge.