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Inhibition of Platelet Aggregation by 1-Acid Glycoprotein

Stuart Snyder, MD; Eugene L. Coodley, MD

Arch Intern Med. 1976;136(7):778-781.

Abstract
In view of known abnormalities of plasma proteins in diseases showing changes in platelet aggregation, the effect of one of the major serum proteins, ₁-acid glycoprotein, on platelet aggregation was evaluated. This protein, when added to platelet-rich plasma, markedly inhibited platelet aggregation induced by both adenosine diphosphate (ADP) and epinephrine. Transferrin, similarly studied, had no effect. These results are consistent with the hypothesis that the relative concentration of ₁-acid glycoprotein may influence platelet aggregation in diseases associated with abnormal concentrations of this protein.

(Arch Intern Med 136:778-781, 1976)

Author Affiliations
From the Cardiovascular Institute and the Department of Medicine, Hahnemann Medical College and Hospital, Philadelphia.

Footnotes
Received for publication Aug 6, 1975; accepted Dec 26.

Reprint requests to Department of Medicine, Hahnemann Medical College, 230 N Broad St, Philadelphia, PA 19102 (Dr Coodley).

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