Epiandrosterone Epiandrosterone (3β-androsterone, EpiA) is a steroid hormone with weak androgenic activity, is a natural metabolite of DHEA. In vitro
Epiandrosterone is a natural metabolite of dehydroepiandrosterone (DHEA) via the 5α-reductaseenzyme. Epiandrosterone is formed in peripheral tissues, from which it is released into the circulation and is ultimately excreted in the urine. Epiandrosterone is only a weak androgen, but it is widely recognized to inhibit the pentosephosphate pathway (PPP) and to decrease intracellular NADPH levels. Epiandrosterone attenuates NO-evoked relaxation of pulmonary artery , although it inhibits angiotensin II- and hypoxia-induced vasoconstriction in isolated lungs and relaxes isolated pulmonary arteries pre-constricted with KCl.
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