期刊
PHARMACOGENETICS
卷 12, 期 7, 页码 581-583出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/00008571-200210000-00011
关键词
HPA-1; polymorphism; abciximab; tirofiban; eptifibatide
This study investigated the hypothesis that the human platelet antigen-1 (HPA-1) polymorphism may influence the antiplatelet effects of glycoprotein (GP)IIb/IIIa inhibitors. Adenosine diphosphate (30 mumol)-induced fibrinogen binding was measured by flow cytometry. Abciximab (0.03-3 mug/ml), tirofiban (0.3-30 nmol/l) or eptifibatide (0.01 -1 mug/ml) were incubated for 15 min with the samples prior to stimulation. IC50 values for the inhibition of fibrinogen binding were determined from each experiment All subjects were genotyped by GALIOS and automated fluorescence correlation spectroscopy. Although a marked variability in the inhibitory effects of all three GPIIb/IIIa inhibitors was confirmed, there were no significant differences between the genotypes with respect to the inhibition of fibrinogen binding. Thus, the present study does not provide evidence for an effect of HPA-1 polymorphism on the inter-individual variability in the platelet inhibitory effects of the three GPIIb/IIIa inhibitors approved for clinical use.
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