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In addition to its affinity for the androgen receptor, DHEA has also been found to bind to (and activate) the ERα and ERβ estrogen receptors with K i values of 1.1 μM and 0.5 μM, respectively, and EC 50 values of >1 μM and 200 nM, respectively. Though it was found to be a partial agonist of the ERα with a maximal efficacy of 30–70%, the ...
In humans, the reticularis layer does contain 17α-hydroxylase; this hydroxylates pregnenolone, which is then converted to cortisol by a mixed function oxidase. Deficiency of 17α-hydroxylase results in low blood levels of estrogens, androgens, and cortisol, and the resultant compensatory increases in adrenocorticotrophic hormone stimulates the ...
Dehydroepiandrosterone sulfate, abbreviated as DHEA sulfate or DHEA-S, also known as androstenolone sulfate, is an endogenous androstane steroid that is produced by the adrenal cortex. [1] It is the 3β-sulfate ester and a metabolite of dehydroepiandrosterone (DHEA) and circulates in far greater relative concentrations than DHEA. [2]
Dehydroandrosterone (DHA), or 5-dehydroandrosterone (5-DHA), also known as isoandrostenolone, as well as androst-5-en-3α-ol-17-one, is an endogenous androgen steroid hormone. [ 1 ] [ 2 ] It is the 3α- epimer of dehydroepiandrosterone (DHEA; androst-5-en-3β-ol-17-one) and the 5(6)- dehydrogenated and non- 5α-reduced analogue of androsterone ...
This is a list of antiandrogens, [1] or drugs that prevent the effects of androgens like testosterone and dihydrotestosterone (DHT). [2] It includes direct antagonists of the androgen receptor (AR), androgen synthesis inhibitors like 5α-reductase inhibitors and CYP17A1 inhibitors, and antigonadotropins like GnRH analogues, estrogens, and ...
Dihydrotestosterone (DHT) is a metabolite of testosterone, and a more potent androgen than testosterone in that it binds more strongly to androgen receptors. It is produced in the skin and reproductive tissue. A4 and testosterone can also have an extra hydroxyl (-OH) or keton (=O) group bound on position 11.
The androgen receptor is most closely related to the progesterone receptor, and progestins in higher dosages can block the androgen receptor. [11] [12] The main function of the androgen receptor is as a DNA-binding transcription factor that regulates gene expression; [13] however, the androgen receptor has other functions as well. [14]
Prasterone, also known as dehydroepiandrosterone (DHEA) and sold under the brand name Intrarosa among others, is a medication as well as over-the-counter dietary supplement which is used to correct DHEA deficiency due to adrenal insufficiency or old age, as a component of menopausal hormone therapy, to treat painful sexual intercourse due to vaginal atrophy, and to prepare the cervix for ...