title: 6-Keto-prostaglandin E1 inhibits the aggregation of human platelets.
abstract: 6-Keto-prostaglandin E1 (6-keto-PGE1) was found to have a similar potency to prostacyclin (PGI2) as an inhibitor of platelet aggregation. It caused a time and concentration dependent inhibition of ADP, collagen and epinephrine induced platelet aggregation, the dose ratios for 70% inhibition by 6-keto-PGE1, PGI2 and PGE1 being approximately 1 : 1 : 13. In doses similar to those of PGI2, 6-keto-PGE1 partially inhibited the release of [3H]-serotonin from platelet-rich plasma induced by collagen.
mesh_terms: D003094:Collagen / Q000494:pharmacology; D004837:Epinephrine / Q000494:pharmacology; D011464:Epoprostenol / Q000494:pharmacology*; D006801:Humans; D066298:In Vitro Techniques; D010974:Platelet Aggregation / Q000187:drug effects*; D011453:Prostaglandins / Q000494:pharmacology*; D011458:Prostaglandins E / Q000494:pharmacology*; D012701:Serotonin / Q000378:metabolism
chemical_list: D011453:Prostaglandins; D011458:Prostaglandins E; D012701:Serotonin; D003094:Collagen; D011464:Epoprostenol; D004837:Epinephrine