16α-Hydroxy-DHEA
16α-Hydroxy-DHEA is a steroid and a metabolite of dehydroepiandrosterone (DHEA). It is formed from DHEA in the body by the action of the enzyme 16α-hydroxylase. 16α-Hydroxy-DHEA is a precursor of estriol, and is also a precursor of 16α-hydroxyestrone, a metabolite of estrone.
Metabolism[edit | edit source]
16α-Hydroxy-DHEA is formed from DHEA in the body by the action of the enzyme 16α-hydroxylase, which is expressed in the liver and the adrenal glands. The conversion of DHEA to 16α-Hydroxy-DHEA is a step in the biosynthesis of estriol and 16α-hydroxyestrone.
Biological activity[edit | edit source]
16α-Hydroxy-DHEA has been found to possess estrogenic activity. It is less potent than estrone and other natural estrogens, but is still capable of inducing estrogenic effects.
Clinical significance[edit | edit source]
16α-Hydroxy-DHEA is a marker for the activity of the enzyme 16α-hydroxylase. Increased levels of 16α-Hydroxy-DHEA can be indicative of an overactive 16α-hydroxylase, which can be seen in certain diseases such as Cushing's syndrome and polycystic ovary syndrome (PCOS).
See also[edit | edit source]
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Contributors: Prab R. Tumpati, MD
