title: The influence of novel platelet aggregation inhibitors on human blood platelet clustering and retention effected by some polymer materials, in vitro.
abstract: Human blood platelet clustering and retention in vitro induced by medical grade Cuprophane and Silastic and by non-medical grade polyethylene and Mylar, are discussed. The influence of synthetic compounds on polymer-induced platelet clustering and retention has been evaluated, interpreted in terms of physicochemical parameters, and correlated with ADP- and human alpha-trombin-stimulated aggregation; the Pearson product-moment correlation coefficient for a series of bis (alkylnipecotoylamino) alkanes was computed at r = 0.98 between (i) mylar-induced cluster formation and (ii) ADP-effected aggregation, and at r = 0.94 in corresponding correlations with thrombin as an inducing agent. All experiments were carried out in vitro. Due to the paucity of polymer specimens meeting the stipulated specifications, several evaluations had to be limited to triplicate and duplicate determinations.
mesh_terms: D001792:Blood Platelets / Q000502:physiology* / Q000648:ultrastructure; D006801:Humans; D008855:Microscopy, Electron, Scanning; D010974:Platelet Aggregation / Q000187:drug effects*; D010979:Platelet Function Tests / Q000295:instrumentation; D011108:Polymers / Q000494:pharmacology*; D013329:Structure-Activity Relationship
chemical_list: D011108:Polymers