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Thromb Haemost 1964; 11(02): 317-326
DOI: 10.1055/s-0038-1654832
Originalarbeiten — Original Articles — Travaux Originaux
Schattauer GmbH

Investigation on Adenosine Diphosphate (ADP) Induced Platelet Adhesiveness in Vitro Part III. The Inactivation of ADP in Plasma

A. E Ödegaard
1   Institute for Thrombosis Research. Head: Professor H. Stormorken, M. D. and Medical Department A*. Head: Professor P. A. Owren, M. DUniversity Hospital, Pikshospitalet, Oslo, Norway
,
B. A Skälhegg
1   Institute for Thrombosis Research. Head: Professor H. Stormorken, M. D. and Medical Department A*. Head: Professor P. A. Owren, M. DUniversity Hospital, Pikshospitalet, Oslo, Norway
,
A. J Hellem   *)
1   Institute for Thrombosis Research. Head: Professor H. Stormorken, M. D. and Medical Department A*. Head: Professor P. A. Owren, M. DUniversity Hospital, Pikshospitalet, Oslo, Norway
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Publication Date:
22 June 2018 (online)

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Summary

The results of investigations on the ADP inactivating system in platelet poor plasma are given. The activity of the system is maximal at about 37° C. and is irreversibly destroyed by heating for 15 minutes at 58° C. The system is non dialysable and is inactivated by KCN, cysteine, 2.3-dimercaptopropanole (BAL) and penicillamine at concentrations between 2 · 10∼3 and 5 · 10−3M.

The ADP inactivating ability of platelet poor plasma from normals, patients with thyrotoxicosis, diabetes mellitus, hypercholesterolemia and some patients with bleeding disorders has been estimated. The inactivation by plasma from patients with thyrotoxicosis is markedly increased as compared with the other groups. A possible relationship between the low frequency of thromboembolism and the increased ADP degradation in these patients is discussed.

*) Granted by the Norwegian Council on Cardiovascular Diseases.


 

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