Prostaglandin E2 (PGE2) was infused intravenously to eight women for the termination of pregnancy and tests of platelet function: coagulation and fibrinolysis were studied before and during the infusion.
Platelet adhesiveness, as measured by a cellophane membrane test-cell system, was significantly diminished by PGE2, a change which was not noted by the glass-bead column technique. The administration of PGE2 caused more rapid platelet disaggregation following ADP-induced aggregation but had no effect on the platelet count, collagen-induced aggregation, or platelet factor 3 activity. An increase in plasma antithrombin concentration and euglobulin lysis activity was also noted.
These results support the concept that prostaglandin E2 might have a role in the prevention of thrombosis.
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