In Vivo Antithrombotic Synergy of Oral Heparin and Arginine: Endothelial Thromboresistance Without Systemic Anticoagulation
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Authors
Daniels, B.
Linhardt, Robert J.
Zhang, F.
Mao, W.
Wice, S.
Hiebert, L.
Issue Date
2006
Type
Article
Language
ENG
Keywords
Biology , Chemistry and chemical biology , Chemical and biological engineering , Biomedical engineering
Alternative Title
Abstract
On the basis of suggested clinical efficacy in an uncontrolled study in ninety-seven patients with unstable angina, an animal study was conducted to investigate antithrombotic synergy between orally administered heparin and arginine. A rat venous thrombosis model tested the difference in thrombus formation when heparin (7.5 mg/kg) and arginine (113 mg/kg) were administered, alone or in combination, by stomach tube with a minimum of 20 rats/group. Oral heparin, arginine, and heparin plus arginine reduced thrombus formation by 50%, 75%, and 90%, respectively, when compared to saline administration. Heparin was recovered from endothelium, yet there was little or no observable plasma anticoagulant activity. An orally administered low-molecular- weight anticoagulant glycosaminoglycan mixture, sulodexide (7.5 mg/kg), showed an 88% reduction in stable thrombus formation when administered alone but showed no synergy with oral arginine. A 28-day study with oral sulodexide (2.9 mg/ kg) and arginine (43.9 mg/kg), 20 rats/group, showed antithrombotic activity with minimal anticoagulant activity indicating suitability for long term treatment. These findings suggest the endothelial localization of heparin and a synergistic antithrombotic effect for orally administered heparin and arginine.
Description
Thrombosis and Haemostasis, 95, 865-873
Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
Full Citation
In Vivo Antithrombotic Synergy of Oral Heparin and Arginine: Endothelial Thromboresistance Without Systemic Anticoagulation, B. Daniels, R.J. Linhardt, F. Zhang, W. Mao, S. Wice, L. Hiebert, Thrombosis and Haemostasis, 95, 865-873, 2006.
Publisher
Thieme Medical Publishers