Thromb Haemost 1976; 36(03): 634-640
DOI: 10.1055/s-0038-1648084
Original Article
Schattauer GmbH

Impairment of ADP-Induced Platelet Aggregation by Hashish Components

Rachel Levy
1   Biology Department and Research and Development Authority, Ben-Gurion University of the Negev and Blood Research Laboratory, Soroka Medical Center, Beer-Sheva, Israel
,
Avital Schurr
1   Biology Department and Research and Development Authority, Ben-Gurion University of the Negev and Blood Research Laboratory, Soroka Medical Center, Beer-Sheva, Israel
,
Ilana Nathan
1   Biology Department and Research and Development Authority, Ben-Gurion University of the Negev and Blood Research Laboratory, Soroka Medical Center, Beer-Sheva, Israel
,
Alexander Dvilanski
1   Biology Department and Research and Development Authority, Ben-Gurion University of the Negev and Blood Research Laboratory, Soroka Medical Center, Beer-Sheva, Israel
,
Avinoam Livne
1   Biology Department and Research and Development Authority, Ben-Gurion University of the Negev and Blood Research Laboratory, Soroka Medical Center, Beer-Sheva, Israel
› Author Affiliations
Further Information

Publication History

Received 30 August 1975

Accepted 20 July 1976

Publication Date:
03 July 2018 (online)

Summary

ADP-induced aggregation of washed human platelets is inhibited by the hashish components Δ1-tetrahydrocannabinol (THC) and cannabidiol (CBD). The inhibition is counteracted by added ADP. When the cannabinoids are present at concentrations higher than 10−5M, the platelets aggregate non-reversibly, independently of an added inducer, apparently due to lysis and release of endogenous inducers. THC is clearly more potent than CBD in exhibiting the biphasic effect. Collagen- and thrombin-induced aggregation of washed platelets are hardly affected by the cannabinoids. THC and CBD also curtail ADP-induced reversible aggregation in platelet-rich plasma, while serotonin release and irreversible aggregation, caused by either ADP, collagen or thrombin, are not affected by the cannabinoids in platelet-rich plasma. The data point to associated sites for ADP and the cannabinoids on the platelet membrane.

 
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