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In premenopausal women, 40 to 75% of circulating testosterone is derived from peripheral metabolism of DHEA-S, and in postmenopausal women, over 90% of estrogens, mainly estrone, are derived from peripheral metabolism of DHEA-S. [2] A study found that administration of exogenous DHEA-S in women who were pregnant increased circulating levels of ...
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]
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 ...
The ratio of estradiol to free testosterone and the ratio of estradiol to dehydroepiandrosterone sulfate (DHEAS) was significantly lower in patients than in the control group.
Levels of sex hormones and SHBG during pregnancy in women. [29] Levels of SHBG and estradiol during pregnancy in women. [30] For SHBG the lines are the mean and 95th percentile levels while the points are individual measurements. [30] For estradiol the line is the mean level. [30] The dashed parts of the lines are extrapolated. [30]
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.
DHEA levels are lower in those with depression, so supplementation may help. A 2005 placebo-controlled study looked at men and women aged 45 to 65 with midlife-onset major or minor depression.
In addition, much circulating T in women is derived from the peripheral conversion of adrenal dehydroepiandrosterone and dehydroepiandrosterone sulfate that also is not subject to feedback control. Because SHBG is present in such large excess in women (10–100:1), FT concentrations are driven primarily by SHBG abundance.