The conversion of pregnenolone to a more active progestational substance by incubation with corpus luteum, adrenal or placenta.
D000311:Adrenal Glands; D003338:Corpus Luteum; D005260:Female; D006801:Humans; D010920:Placenta; D011247:Pregnancy; D011284:Pregnenolone
D011284:Pregnenolone
ADRENALS; CORPUS LUTEUM; PLACENTA; PREGNENOLONE