Journal
JOURNAL OF TRADITIONAL CHINESE MEDICINE
Volume 33, Issue 4, Pages 531-534Publisher
JOURNAL TRADITIONAL CHINESE MED
DOI: 10.1016/S0254-6272(13)60160-0
Keywords
Gardenia Jasminoides; Iridoid glycosides; Thrombosis; Platelet aggregation; Partial thromboplastin time; Thrombin time; Prothrombin time
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OBJECTIVE: To investigate the anti-platelet aggregation and antithrombotic effects in rats of iridoid glycosides extracted from Zhizi (Fructus Gardeniae). METHODS: The present study evaluated the antithrombotic activity of iridoid glycosides (IGs) in a rat model of carotid artery thrombosis. The effects on coagulation, such as thromboplastin time (APTT), thrombin time (TT) and prothrombin time (PT), and the effect on collagen-induced platelet aggregation in vivo were investigated. Rats were intragastrically administered IGs (50, 100 or 200 mg/kg) twice daily for 3 days. RESULTS: IGs were shown for the first time to have an antithrombotic action through the inhibition of platelet aggregation, with little effect on the coagulation time of peripheral blood. Our results also showed that IGs may significantly and dose-dependently reduce arterial thrombus load in a model of carotid artery thrombosis and inhibit collagen-induced platelet aggregation in rats. IGs (100 or 200 mg/kg) had no significant effect on APTT and PT, but did lengthen TT at a higher dose. CONCLUSION: These data, together with the previously reported neuroprotective effects of IGs in rats with cerebral ischemia, suggest that the antithrombotic action of IGs may potentially contribute to the treatment of cerebral ischemic diseases, including cerebral apoplexy. (C) 2013 JTCM. All rights reserved.
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