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 ?
"We're at a point in media history where if you don't find a way to disrupt your own way of doing business, it's going to be a big issue," Bedol said.
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."
The primary schools taking part are: Ysgol Gynradd Cwm Garw (Bridgend), Bettws (Bridgend), Nantymoel (Bridgend), Ysgol Gymraeg Teilo Sant (Llandeilo), Tycroes (Ammanford), Bro Banw (Ammanford), Y Bedol (Glanamman) and Blaencaerau Junior School (Maesteg).
Supreme champion was Y Bedol Bronwen, scanned for twins, which fetched 850gns.
The Court of Appeals (CA) has ordered the Public Attorney's Office (PAO) to assist former provincial election officer Lintang Bedol in his electoral sabotage case.
In the end we ended up having sandwiches at Y Bedol pub in Tal-y-Bont.
Peacefully at Pembroke Lodge, Colwyn Bay, previously of 16 Pont Y Bedol, Llanrhaeadr.
Earlier on the same day, the Commission on Elections (Comelec) voted to file electoral sabotage charges against Arroyo and three others -- Benjamin Abalos, who was chair of the Comelec at the time when the alleged fraud was committed, as well as Comelec election supervisor in Mindanao Lintang Bedol, former governor of Maguindanao Andal Ampatuan Senior and several others.
Brian Bedol, president-CEO of another in-development cable channel, NCSN (the National College Sports Network), says that historically, sports and movies have taken the lead as the primary drivers of the cable and satellite business.
and former Comelec election officer Lintang Bedol with electoral fraud involving the 2007 elections in Maguindanao province.
Efallai fod S4C wedi rhoi rhyw hanner tro bedol yn cael Gerallt Pennat yn ei l, ond hanner tro yw hi - dydi Wedi 7, fel rhaglen dda, ddim wedi ei hachub, dim ond rhoi plastar ar Heno mae nhw wedi gyfaddawdu a dio'm ots faint mae Iolo a Sian Cothi yn crwydro'r wlad, mae rhywun yn teimlo fod yna gyfoeth o hanes allan yna sydd ddim yn cyrraedd y sgrin na radio.