title: Effects of dehydroepiandrosterone and 16 alpha-hydroxydehydroepiandrosterone on the reduction of glucose to glucitol by the human placenta.
abstract: The metabolism of glucose by subcellular preparations of human full term placentae has been investigated. It has been shown that in the presence of NADPH two transformation products can be detected of which one has been identified as glucitol. The effects of dehydroepiandrosterone and 16alpha-hydroxydehydroepiandrosterone on the reduction of glucose to glucitol have also been studied. It has been found that at a concentration of DHA 1.2 X 10(-4)M, the reduction of glucose is strongly inhibited (35-51%), while at a concentration of DHA 5.8 X 10(-6)M this reaction is stimulated by 13 +/- 2.3%. 16alpha-hydroxyepiandrosterone at concentrations ranging from 1.2 X 10(-4)M to 3 X 10(-6)M inhibits the formation of glucitol from 63% to 9%.
mesh_terms: D003687:Dehydroepiandrosterone / Q000031:analogs & derivatives* / Q000494:pharmacology; D005260:Female; D005947:Glucose / Q000378:metabolism*; D006801:Humans; D066298:In Vitro Techniques; D007700:Kinetics; D010920:Placenta / Q000187:drug effects / Q000378:metabolism*; D011247:Pregnancy; D013402:Sugar Alcohols / Q000096:biosynthesis*
chemical_list: D013402:Sugar Alcohols; D003687:Dehydroepiandrosterone; D005947:Glucose