Thromb Haemost 1973; 29(02): 416-433
DOI: 10.1055/s-0038-1647782
Original Article
Schattauer GmbH

On the Mechanism by which Bovine Fibrinogen Induces the Release and Availability Reaction of Human Blood Platelets

P Kubisz
1   Hemostasis Laboratory, Department Hospital, Čadca, Czechoslovakia
,
J Suranová
1   Hemostasis Laboratory, Department Hospital, Čadca, Czechoslovakia
› Author Affiliations
Further Information

Publication History

Received 21 October 1972

Publication Date:
24 July 2018 (online)

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Summary

Bovine fibrinogen can aggregate human blood platelets by a direct mechanism (first wave) and also indirectly by releasing endogenous ADP (second wave).

A primarily non-altered surface structure of the thrombocytes is important for the induction of the first wave.

Under certain conditions a second aggregation wave, concomitant with the release and the availability reaction is elicited.

Besides the cells’ contact, the presence of ADP and calcium ions are necessary for the induction of the release reaction in human platelet rich plasma.

The changes induced by bovine fibrinogen thus follow the same pattern as the irreversible phase of aggregation, linked to release as induced by ADP.