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Estrone sulfate, also known as E1S, E1SO4 and estrone 3-sulfate, is a natural, endogenous steroid and an estrogen ester and conjugate. [1] [2] [3]In addition to its role as a natural hormone, estrone sulfate is used as a medication, for instance in menopausal hormone therapy; for information on estrone sulfate as a medication, see the estrone sulfate (medication) article.
Estrone sulfate (E1S) is an estrogen medication and naturally occurring steroid hormone. [1] It is used in menopausal hormone therapy among other indications. [ 1 ] [ 2 ] As the sodium salt (sodium estrone sulfate), it is the major estrogen component of conjugated estrogens (Premarin) and esterified estrogens (Estratab, Menest).
Estrone is conjugated into estrogen conjugates such as estrone sulfate and estrone glucuronide by sulfotransferases and glucuronidases, and can also be hydroxylated by cytochrome P450 enzymes into catechol estrogens such as 2-hydroxyestrone and 4-hydroxyestrone or into estriol. [1] Both of these transformations take place predominantly in the ...
Getting your estrogen levels checked is a simple blood test. A lab will test the sample for the three different types of estrogen your body makes: estrone (E1), estradiol (E2), and estriol (E3).
Estrone is conjugated into estrogen conjugates such as estrone sulfate and estrone glucuronide by sulfotransferases and glucuronidases, and can also be hydroxylated by cytochrome P450 enzymes into catechol estrogens such as 2-hydroxyestrone and 4-hydroxyestrone or into estriol. [5]
Esterified estrogens (EEs), sold under the brand names Estratab and Menest among others, is an estrogen medication which is used hormone therapy for menopausal symptoms and low sex hormone levels in women, to treat breast cancer in both women and men, and to treat prostate cancer in men.
Estrogen esters also occur naturally in the body, for instance estrogen conjugates like estrone sulfate and estrone glucuronide and the very long-lived lipoidal estradiol, which is constituted by ultra-long-chain esters like estradiol palmitate (ester of 16 carbons) and estradiol stearate (ester of 18 carbons). [1] [2] [26]
Estrogen conjugates are conjugated at the C3, C16α, and/or C17β positions, where hydroxyl groups are available. [1]Estrogen conjugates have been used as pharmaceutical estrogens, as in estrone sulfate as estropipate (piperazine estrone sulfate) and in conjugated estrogens (Premarin) and conjugated estriol (Progynon, Emmenin).
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