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Peak levels of DHEA and DHEA-S are observed around age 20, which is followed by an age-dependent decline throughout life eventually back to prepubertal concentrations. [25] Plasma levels of DHEA in adult men are 10 to 25 nM, in premenopausal women are 5 to 30 nM, and in postmenopausal women are 2 to 20 nM. [ 25 ]
DHEA and DHEA-S are the most abundant circulating steroids in the body. [29] Plasma levels of DHEA-S are 100 or more times higher than those of DHEA, 5 to 10 times higher than those of cortisol, 100 to 500 times those of testosterone, and 1,000 to 10,000 times higher than those of estradiol. [30] [3] Levels of DHEA and DHEA-S vary throughout life.
Reference ranges (reference intervals) for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples. Reference ranges for blood tests are studied within the field of clinical chemistry (also known as "clinical biochemistry", "chemical pathology" or "pure blood chemistry"), the ...
Levels of DHEA-S, a major adrenal androgen, throughout life in humans. [1]Adrenopause is the decline in secretion and levels of adrenal androgens such as dehydroepiandrosterone (DHEA) and dehydroepiandrosterone sulfate (DHEA-S) from the zona reticularis of the adrenal glands with age.
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 ...
7α-Hydroxydehydroepiandrosterone (7α-hydroxy-DHEA; 7α-OH-DHEA), also known as 3β,7α-dihydroxyandrost-5-ene-17-one, is an endogenous, naturally occurring steroid and a major metabolite of dehydroepiandrosterone (DHEA) that is formed by CYP7B1 (steroid 7α-hydroxylase) in tissues such as the prostate gland and by CYP3A4 in the liver.
16α-Hydroxydehydroepiandrosterone (16α-hydroxy-DHEA or 16α-OH-DHEA) is an endogenous metabolite of dehydroepiandrosterone (DHEA). Both 16α-OH-DHEA and its 3β- sulfate ester , 16α-OH-DHEA-S , are intermediates in the biosynthesis of estriol from dehydroepiandrosterone (DHEA).
DHEA→ Progesterone 17-OH-Progesterone Androstenedione: ↓ ↓ 17α-Hydroxylase CAH: Very rare 202110: CYP17A1: 10q24.3 Pregnenolone→ Progesterone→ 17-OH-Pregnenolone→ 17-OH-Pregnenolone 17-OH-Progesterone DHEA: ↑ ↓ Lipoid CAH (20,22-desmolase) Very rare 201710: StAR P450scc: 8p11.2 15q23-q24 Transport of cholesterol Cholesterol→ ...