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Equine estrogens, or horse estrogens, are estrogens found in horses. [1] [2] [3] They include the following: [1] [2] [3] Estradiol; Estrone; Equilin (Δ 7-estrone) Equilenin (Δ 6,8-estrone) 17α-Dihydroequilin (Δ 7-17α-estradiol) 17β-Dihydroequilin (Δ 7-17β-estradiol) 17α-Dihydroequilenin (Δ 6,8-17α-estradiol) 17β-Dihydroequilenin (Δ ...
[1] [12] The equine estrogens differ from human estrogens in that they have additional double bonds in the B ring of the steroid nucleus. [1] [12] CEEs contain both 17β-estrogens like estradiol and 17β-dihydroequilin and the C17α epimers like 17α-estradiol and 17α-dihydroequilin. [1] [12
8,9-Dehydroestradiol, or Δ 8-17β-estradiol, also known as estra-1,3,5(10),8-tetraen-17β-ol-3-one, is a naturally occurring steroidal estrogen found in horses which is closely related to equilin, equilenin, and estradiol, and, as the 3-sulfate ester sodium salt, is a minor constituent of conjugated estrogens (Premarin). [1]
Grass is a natural source of nutrition for a horse. Equine nutrition is the feeding of horses, ponies, mules, donkeys, and other equines. Correct and balanced nutrition is a critical component of proper horse care. Horses are non-ruminant herbivores of a type known as a "hindgut fermenter." Horses have only one stomach, as do humans.
This is a complete list of estrogens and formulations that are approved by the FDA Tooltip Food and Drug Administration and available in the United States. Estrogens are used as hormonal contraceptives , in hormone replacement therapy , and in the treatment of gynecological disorders .
Conjugated estrogens/medroxyprogesterone acetate (CEs/MPA), sold under the brand names Prempro and Premphase, is a combination product of conjugated equine estrogens (Premarin), an estrogen collected from horse urine, and medroxyprogesterone acetate (Provera), a progestogen, which is used in menopausal hormone therapy for the treatment of menopausal symptoms.
The hormone estriol, produced during pregnancy, is frequently compounded into bioidentical preparations in the United States. While some think it to be a weaker estrogen, with a more limited period of effectiveness than estradiol, it has been demonstrated to be a stronger estrogen in certain ways. [22]
Equol (4',7-isoflavandiol) is an isoflavandiol [1] estrogen metabolized from daidzein, a type of isoflavone found in soybeans and other plant sources, by bacterial flora in the intestines. [2] [3] While endogenous estrogenic hormones such as estradiol are steroids, equol is a nonsteroidal estrogen. Only about 30–50% of people have intestinal ...