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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] Conversely, DHEA-S levels are an order of magnitude higher at 1–10 μM. [25] Levels of DHEA and DHEA-S decline to the lower nanomolar and micromolar ranges in men and women aged 60 to 80 years. [25]
In people with adrenal insufficiency such as in Addison's disease, there may be deficiency of DHEA and DHEA-S. In addition, levels of these steroids decrease throughout life and are 70 to 80% lower in the elderly relative to levels in young adults. Prasterone can be used to increase DHEA and DHEA-S levels in adrenal insufficiency and older age.
DHEA-S levels throughout life in humans. [28] 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]
Estrogen levels may be chronically elevated in those with PCOS due to additional factors like insulin resistance and other hormone levels, but they can also fluctuate based on menstrual cycle ...
DHEA can be lower in people with depression and after menopause, and levels tend to decrease as you age. At age 70 to 80 , DHEA levels may be down to 10 to 20 percent of those in a younger person.
Androstenedione is the common precursor of the androgen and estrogen sex hormones. [7] Androstenedione can be biosynthesized in one of two ways. The primary pathway involves conversion of 17α-hydroxypregnenolone to DHEA by way of 17,20-lyase, with subsequent conversion of DHEA to androstenedione via the enzyme 3β-hydroxysteroid dehydrogenase.
7-Keto-DHEA is not directly converted to testosterone or estrogen by the human body. [3] Due to this fact, the suppliers of supplements have investigated it as a potentially more useful relative of the DHEA steroid when used as a supplementation, but the results are inconclusive.
ER- estrogen receptor, DHEA- dehydroepiandrosterone, 1- first generation NSAIs, 2- second generation NSAIs and 3- third generation NSAIs. Estrogen is a sex-hormone that plays a major role in women's body function. [20] Estrogen also plays a major role in stimulating breast cancer as it binds and activates the estrogen receptor (ER). When the ER ...
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