The Hair Loss Encyclopedia
steroid hormone precursor to testosterone and estrogen
Androstenedione, often referred to as Andro, is a steroid hormone that serves as a precursor in the biosynthesis of testosterone and estrogen. It is produced in the adrenal glands, ovaries, and testes, and plays a crucial role in the development of secondary sexual characteristics and reproductive function. Elevated levels of androstenedione can be associated with conditions like polycystic ovary syndrome (PCOS) and certain forms of adrenal hyperplasia.