title: Displacement of carbon monoxide from placental cytochrome P-450 by steroids: antagonistic effects of androstenedione and 19-norandrostenedione.
mesh_terms: D000735:Androstenedione / Q000494:pharmacology*; D002248:Carbon Monoxide / Q000494:pharmacology*; D003577:Cytochrome P-450 Enzyme System / Q000378:metabolism*; D004227:Dithionite / Q000494:pharmacology; D004963:Estrenes / Q000494:pharmacology*; D005260:Female; D006801:Humans; D007700:Kinetics; D008861:Microsomes / Q000187:drug effects / Q000201:enzymology; D009249:NADP; D009277:Nandrolone / Q000494:pharmacology; D010084:Oxidation-Reduction; D010920:Placenta / Q000187:drug effects / Q000201:enzymology*; D011247:Pregnancy; D013997:Time Factors
chemical_list: D004963:Estrenes; D004227:Dithionite; D000735:Androstenedione; D009249:NADP; D009277:Nandrolone; D002248:Carbon Monoxide; D003577:Cytochrome P-450 Enzyme System