passages.id: split_4_test_1440_passage
passages.type: progene_text
passages.text: In addition , pregnenolone ( 1 micromol / L ) was converted to progesterone ( 18.5 % ) , whereas DHEA ( 1 micromol / L ) was metabolized to androstenedione ( 8.3 % conversion ) in a 15 - h incubation period .