Pathways of Steroid Biosynthesis in the Adrenal Cortex Cholesterol desmolas (CYPlIA) se (CYPIn 17, 20-Lyase Preg nenolone 17-OH pregner Dehydroepiandrosterone 3B-Hydroxysteroid dehydrogenase progesterone 17-OH progesterone Androstenedione 21-Hydrorylas 173y (CYP2l) dehydrogenase Deoxycorticosterone ll-Deary cortisol testosterone 11B-H yaro lB-Hydrarylase H 5a-Reductase (CYPllB2) (CYPllBl) Corticosterone Cortisol Dihydrotestosterone 18-Hydronylase 21 CH-OH (CYPllB2 OH 18-oH cortic .OH 18-Oxidasel CH CYP11B2) C=0 I CHPathways of Steroid Biosynthesis in the Adrenal Cortex