title: Ring-A reduction of medroxyprogesterone acetate [17 alpha-acetoxy-6 alpha-methyl-4-pregnene-3,20-dione (MPA)] in biological systems.
mesh_terms: D000332:Aerobiosis; D000667:Ampicillin / Q000494:pharmacology; D000693:Anaerobiosis; D000818:Animals; D001419:Bacteria / Q000378:metabolism*; D001646:Bile / Q000378:metabolism; D002432:Cecum / Q000382:microbiology; D004285:Dogs; D005243:Feces / Q000382:microbiology*; D005260:Female; D006801:Humans; D007408:Intestinal Absorption / Q000187:drug effects; D008099:Liver / Q000378:metabolism; D013058:Mass Spectrometry; D008525:Medroxyprogesterone / Q000031:analogs & derivatives* / Q000378:metabolism; D017258:Medroxyprogesterone Acetate; D010084:Oxidation-Reduction; D011863:Radioimmunoassay; D051381:Rats
chemical_list: D000667:Ampicillin; D017258:Medroxyprogesterone Acetate; D008525:Medroxyprogesterone