in ovaries of 28-day-old rats , the results from incubation studies for the detection of metabolic pathways indicated two biosynthetic pathways leading to 5alpha-reduced c19-steroids , one from progesterone via 5alpha-reduced c21 steroids , such as 3alpha-hydroxy-5alpha-pregnan-20-one and 3alpha,17alpha-dihydroxy-5alpha-pregnan-20-one , and a second via 17-hydroxyprogesterone , androstenedione , and testosterone .
C0033308
progesterone
C0020387
hydroxyprogesterone