Estradiol (E2), also spelled oestradiol, is an estrogen steroid hormone and the major female sex hormone. It is involved in the regulation of the estrous and menstrual female reproductive cycles. Estradiol is responsible for the development of female secondary sexual characteristics such as the breasts, widening of the hips, and a female-associated pattern of fat distribution and is important in the development and maintenance of female reproductive tissues such as the mammary glands, uterus, and vagina during puberty, adulthood, and pregnancy. It also has important effects in many other tissues including bone, fat, skin, liver, and the brain. Though estradiol levels in males are much lower than in females, estradiol has important roles in males as well. Apart from humans and other mammals, estradiol is also found in most vertebrates and crustaceans, insects, fish, and other animal species.Estradiol is produced especially within the follicles of the ovaries, but also in other tissues including the testicles, the adrenal glands, fat, liver, the breasts, and the brain. Estradiol is produced in the body from cholesterol through a series of reactions and intermediates. The major pathway involves the formation of androstenedione, which is then converted by aromatase into estrone and is subsequently converted into estradiol. Alternatively, androstenedione can be converted into testosterone, which can then be converted into estradiol. Upon menopause in females, production of estrogens by the ovaries stops and estradiol levels decrease to very low levels.
Related Searches

If you like estradiol, try these related items.

Similar Topics

Customers looking for estradiol also searched for:

Sponsored Links
Banner 1
Estradiol(Lab Use Only)-$21/1g-Free shipping in US, $1 for international buyer
Estradiol(Lab Use Only)-$21/1g-Free shipping in US, $1 for international buyer
Price:
21.00 USD
Ends:
Feb 12, 12:11 am
LifeFlo BiEstro-Care (Bi Estro) Body Cream With Estriol & Estradiol - 4 oz.
LifeFlo BiEstro-Care (Bi Estro) Body Cream With Estriol & Estradiol - 4 oz.
Price:
29.95 USD
Ends:
Jan 25, 11:21 pm
oc-35 estradiol [2 box]
oc-35 estradiol [2 box]
Price:
200.00 USD
Ends:
Jan 24, 08:39 pm
Elanco Encore (estradiol Implant) 100 Implants
Elanco Encore (estradiol Implant) 100 Implants
Price:
49.99 USD
Ends:
Feb 13, 06:06 pm
Estradiol & Progesterone (E2 & Pg) Female Hormone Test – Saliva Hormone Test Kit
Estradiol & Progesterone (E2 & Pg) Female Hormone Test – Saliva Hormone Test Kit
Price:
79.95 USD
Ends:
Feb 06, 12:54 pm
All Natural Bioidentical Estrogen Bi-EST 2.5  Estriol & Estradiol
All Natural Bioidentical Estrogen Bi-EST 2.5 Estriol & Estradiol
Price:
50.70 CAD
Ends:
Feb 16, 05:28 pm
NEW Estradiol Gel 80gram
NEW Estradiol Gel 80gram
Price:
169.00 USD
Ends:
Jan 23, 06:41 pm
 Estrogen All Natural Bioidentical Estrogen Bi-EST 2.5  Estriol & Estradiol
Estrogen All Natural Bioidentical Estrogen Bi-EST 2.5 Estriol & Estradiol
Price:
39.00 USD
Ends:
Feb 14, 11:41 am
NEYNNA Estradiol + Anti Acne [ 2 Box ]
NEYNNA Estradiol + Anti Acne [ 2 Box ]
Price:
160.00 USD
Ends:
Jan 24, 04:25 pm
2 boxes NEW Estradiol Gel 80 gram
2 boxes NEW Estradiol Gel 80 gram
Price:
159.00 USD
Ends:
Feb 14, 06:45 am
CLUB cosmetics hormone cream 60g ethynyl estradiol moisturizer From Japan
CLUB cosmetics hormone cream 60g ethynyl estradiol moisturizer From Japan
Price:
20.99 USD
Ends:
Jan 27, 11:29 pm
OC-35 Estradiol
OC-35 Estradiol
Price:
100.00 USD
Ends:
Jan 28, 04:29 pm
CLUB cosmetics hormone beauty emulsion 100ml moisturizer ethynyl estradiol Japan
CLUB cosmetics hormone beauty emulsion 100ml moisturizer ethynyl estradiol Japan
Price:
19.99 USD
Ends:
Jan 21, 06:22 am
CLUB cosmetics hormone cream 60g ethynyl estradiol moisturizer From Japan
CLUB cosmetics hormone cream 60g ethynyl estradiol moisturizer From Japan
Price:
31.49 USD
Ends:
Jan 25, 03:44 am
Estrogen - All Natural Bioidentical Estrogen Bi-EST 2.5 Estriol & Estradiol
Estrogen - All Natural Bioidentical Estrogen Bi-EST 2.5 Estriol & Estradiol
Price:
43.95 USD
Ends:
Feb 09, 12:06 am
BiEstro Cream - Natural Estrogen Supplement with Estriol and Estradiol
BiEstro Cream - Natural Estrogen Supplement with Estriol and Estradiol
Price:
38.99 USD
Ends:
Feb 04, 09:27 pm
Estrogen - All Natural Bioidentical Estrogen Bi-EST 2.5 - Estriol & Estradiol -
Estrogen - All Natural Bioidentical Estrogen Bi-EST 2.5 - Estriol & Estradiol -
Price:
32.99 USD
Ends:
Jan 21, 08:10 am
Estradiol Earrings Sterling Silver Studs Handmade Authentic HRT LGBT PillBling
Estradiol Earrings Sterling Silver Studs Handmade Authentic HRT LGBT PillBling
Price:
101.00 USD
Ends:
Feb 16, 05:00 am
LifeFlo BiEstro-Care (Bi Estro) Body Cream With Estriol & Estradiol - 4 oz.
LifeFlo BiEstro-Care (Bi Estro) Body Cream With Estriol & Estradiol - 4 oz.
Price:
29.99 USD
Ends:
Jan 24, 09:00 pm
Life-Flo BiEstro-Care | Estrogen Cream w/Estriol USP & Estradiol 4-oz Pump
Life-Flo BiEstro-Care | Estrogen Cream w/Estriol USP & Estradiol 4-oz Pump
Price:
32.49 USD
Ends:
Jan 29, 01:28 pm