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. Author manuscript; available in PMC: 2010 Oct 13.
Published in final edited form as: J Neurochem. 2007 Oct 18;104(1):244–253. doi: 10.1111/j.1471-4159.2007.04953.x

Fig. 1.

Fig. 1

Simplified diagram of sex steroid synthesis. Steroids: PREG, pregnenolone; PROG, progesterone. Enzymes: CYP11A1, cytochrome P450 side chain cleavage; CYP17, cytochrome P450 17α-hydroxylase/C17, 20 lyase. The enzyme 3β-HSD metabolizes DHEA into AE. AE can then be converted to other steroids: 5β-A, 5β-androstanedione; 5α-A, 5α-androstanedione; E1, estrone; T, testosterone.