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3β-Hydroxysteroid dehydrogenase/Δ 5-4 isomerase (3β-HSD) (EC 1.1.1.145) is an enzyme that catalyzes the biosynthesis of the steroid progesterone from pregnenolone, 17α-hydroxyprogesterone from 17α-hydroxypregnenolone, and androstenedione from dehydroepiandrosterone (DHEA) in the adrenal gland.
Adrenal steroids such as glucocorticoids and mineralocorticoids are commonly used as treatments in diseases such as Congenital adrenal hyperplasia. [2] CAH commonly causes overproduction of androgens, glucocorticoid treatment is used to reduce Adrenocorticotropic hormone (ACTH) and reduce the production of androgens allowing for symptoms of CAH to be managed though treatment is required to be ...
The vagus nerve stimulator is a device that can be implanted into patients with epilepsy, especially that which originates from a specific part of the brain. However, both of these treatment options can cause severe adverse effects. Additionally, while seizure frequency typically decreases, they often do not stop entirely. [40] [41]
The CRH-1 receptor antagonist pexacerfont is currently under investigation for the treatment of generalized anxiety disorder. [21] Another CRH-1 antagonist antalarmin has been researched [ citation needed ] in animal studies for the treatment of anxiety, depression and other conditions, but no human trials with this compound have been carried out.
It is derived mostly from the adrenal cortex, with only about 10% being secreted from the gonads. [43] [44] [45] Approximately 50 to 70% of circulating DHEA originates from desulfation of DHEA-S in peripheral tissues. [43] DHEA-S itself originates almost exclusively from the adrenal cortex, with 95 to 100% being secreted from the adrenal cortex ...
17β-Hydroxysteroid dehydrogenases (17β-HSD, HSD17B) (EC 1.1.1.51), also 17-ketosteroid reductases (17-KSR), are a group of alcohol oxidoreductases which catalyze the reduction of 17-ketosteroids and the dehydrogenation of 17β-hydroxysteroids in steroidogenesis and steroid metabolism.
Androstenedione, or 4-androstenedione (abbreviated as A4 or Δ 4-dione), also known as androst-4-ene-3,17-dione, is an endogenous weak androgen steroid hormone and intermediate in the biosynthesis of estrone and of testosterone from dehydroepiandrosterone (DHEA).
Adrenal androgen stimulating hormone (AASH), also known as cortical androgen stimulating hormone (CASH), is a hypothetical hormone which has been proposed to stimulate the adrenal glands to produce adrenal androgens such as dehydroepiandrosterone (DHEA), dehydroepiandrosterone sulfate (DHEA-S), and androstenedione (A4).