title: STUDIES ON THE METABOLISM OF C-21 STEROIDS IN THE HUMAN FOETO-PLACENTAL UNIT. I. FORMATION OF A BETA-UNSATURATED 3-KETONES IN MIDTERM PLACENTAS PERFUSED IN SITU WITH PREGNENOLONE AND 17-ALPHA-HYDROXYPREGNENOLONE.
mesh_terms: D006907:17-alpha-Hydroxypregnenolone; D005260:Female; D005333:Fetus; D006801:Humans; D007659:Ketones; D008431:Maternal-Fetal Exchange; D008660:Metabolism; D010920:Placenta; D011247:Pregnancy; D011284:Pregnenolone; D011374:Progesterone; D013256:Steroids; D014316:Tritium; D014556:Urine
chemical_list: D007659:Ketones; D013256:Steroids; D014316:Tritium; D006907:17-alpha-Hydroxypregnenolone; D011374:Progesterone; D011284:Pregnenolone
keywords: FETUS; KETONES; MATERNAL-FETAL EXCHANGE; METABOLISM; PLACENTA; PREGNANCY; PREGNENOLONE; PROGESTERONE; STEROIDS; TRITIUM; URINE