Cinnamaldehyde reduction of platelet aggregation and thrombosis in rodents
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Updated: Aug 9, 2026
Ferric Chloride-induced Murine Thrombosis Models
Published on: September 5, 2016
Jingqun Huang1, Siwang Wang, Xiaoxing Luo
1Institute of Materia Medica, School of pharmacy, Fourth Military Medical University, 17 Changlexi Street, Xi'an 710032, China.
Introduction:
Cinnamaldehyde (CA) has been reported to inhibit in vitro aggregation in human and rabbit platelets; however, little is known about the antithrombotic activities of CA in vivo.
Materials And Methods:
We tested the effects of CA on collagen- or thrombin-induced aggregation of rat platelets in vitro. Hemorrhage and coagulation times of mice treated with CA by the tail-cutting or slide method were measured. We also tested the life-saving effects of CA on experimental models of thrombosis in mice and rats. The anti-platelet effects of CA were examined in rats.
Results:
CA inhibited collagen- and thrombin-induced platelet aggregation in vitro in a concentration-dependent manner. In mice, CA administration (250, 500 mg/kg orally and 50, 100 mg/kg i.p.) markedly prolonged hemorrhage and coagulation times and effectively reduced the mortality rate of collagen-epinephrine-induced acute pulmonary thromboembolism. In an arteriovenous shunt thrombosis rat model, the CA administration (250, 500 mg/kg orally and 50, 100 mg/kg i.p.) for 10 days dose-dependently decreased thrombus weight. Administration of CA also significantly inhibited collagen-induced platelet aggregation in the rat platelet-rich plasma (PRP).
Conclusions:
The results demonstrate that CA may be a promising antithrombotic agent, and its antithrombotic activity may be due to anti-platelet aggregation activity in vitro and in vivo.
