Document Detail

Reduced Thrombin Formation and Altered Fibrin Clot Properties Induced by Polyunsaturated Omega-3 Fatty Acids on Top of Dual Antiplatelet Therapy in Patients Undergoing Percutaneous Coronary Intervention (OMEGA-PCI Clot).
MedLine Citation:
PMID:  21617138     Owner:  NLM     Status:  Publisher    
OBJECTIVE: The goal of this study was to investigate whether omega-3 polyunsaturated fatty acids (n-3 PUFA) are able to alter plasma fibrin clot properties and reduce thrombin formation in stable coronary artery disease patients undergoing percutaneous coronary intervention (PCI). METHODS AND RESULTS: In an investigator-initiated, prospective, double-blind, placebo-controlled, randomized study, patients undergoing PCI who received standard pharmacotherapy were assigned to the treatment with 1 g/day n-3 PUFA (n=30) or placebo (n=24) for 1 month. Plasma fibrin clot permeability (K(s)); lysis time (t(50%)); prothrombin fragment 1.2; and peak thrombin generation from automated thrombogram, 8-isoprostaglandin F(2α) (8-iso-PGF(2α), an oxidative stress marker), and C-reactive protein were determined at baseline, 3 to 5 days after randomization, and 30 days after randomization. At baseline, both treatment groups did not differ significantly. A 1-month treatment with n-3 PUFA compared with placebo was associated with 15.3% higher K(s), indicating larger pores in the fibrin network (P=0.0005); 14.3% shorter t(50%), indicating increased susceptibility to fibrinolysis (P<0.0001); 33.8% lower prothrombin fragment 1.2 (P=0.0013); 13.4% lower peak thrombin generation (P=0.04); and 13.1% lower 8-iso-PGF(2α) (P=0.009). Treatment with n-3 PUFA had no effect on fibrinogen and C-reactive protein. After 1 month of treatment, fibrinogen (r=-0.53, P<0.0001), treatment assignment (r=0.29, P=0.006) and 8-iso-PGF(2α) (r=-0.27, P=0.015) were independently associated with clot permeability (P<0.0001, R(2)=0.66). CONCLUSIONS: Adding n-3 PUFA to standard therapy in stable patients undergoing PCI significantly decreases thrombin formation and oxidative stress and favorably alters fibrin clot properties. These findings indicate novel antithrombotic effects induced by n-3 PUFA in humans.
Grzegorz Gajos; Jaroslaw Zalewski; Pawel Rostoff; Jadwiga Nessler; Wieslawa Piwowarska; Anetta Undas
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-5-26
Journal Detail:
Title:  Arteriosclerosis, thrombosis, and vascular biology     Volume:  -     ISSN:  1524-4636     ISO Abbreviation:  -     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-5-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9505803     Medline TA:  Arterioscler Thromb Vasc Biol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Departments of Coronary Disease and Experimental Cardiac Surgery and Cardiology, Institute of Cardiology, Jagiellonian University Medical College, Krakow, Poland; John Paul II Hospital, Krakow, Poland.
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