results are presented which show that prolonged incubation of platelets with iloprost ( a stable prostacyclin analogue ) results in a reduction in the capacity for adenylate cyclase activation by the adenosine analogue 5'- ( n-ethyl ) -carboxamidoadenosine ( neca ) , naf , guanyl-5'-yl imidodiphosphate or gtp .
C0018366
guanyl-5
C0018353
gtp