title: Effect of 3,7-dimethyl-1-(5-oxo-hexyl)xanthine and 1-hexyl-3,7-dimethyl xanthine on cyclic AMP phosphodiesterase of the human umbilical cord vessels.
mesh_terms: D002247:Carbon Isotopes; D000242:Cyclic AMP / Q000378:metabolism; D005260:Female; D006801:Humans; D010477:Perfusion; D010539:Permeability; D010727:Phosphoric Diester Hydrolases / Q000378:metabolism*; D014316:Tritium; D014469:Umbilical Arteries / Q000201:enzymology* / Q000378:metabolism; D014471:Umbilical Veins / Q000201:enzymology* / Q000378:metabolism; D014970:Xanthines / Q000494:pharmacology*
chemical_list: D002247:Carbon Isotopes; D014970:Xanthines; D014316:Tritium; D000242:Cyclic AMP; D010727:Phosphoric Diester Hydrolases