Changes in surface expression of platelet membrane glycoproteins and progression of heart transplant vasculopathy.

Published on Aug 22, 2000in Circulation23.603
· DOI :10.1161/01.CIR.102.8.890
Suzanne Fateh-Moghadam15
Estimated H-index: 15
(Humboldt University of Berlin),
Wolfgang Bocksch17
Estimated H-index: 17
+ 6 AuthorsMeinrad Gawaz27
Estimated H-index: 27
(TUM: Technische Universität München)
Background—Transplant vasculopathy is the main limiting factor of the long-term success of heart transplantation. We sought to establish the role of platelets in the development and progression of transplant vasculopathy. Methods and Results—Platelet analysis and intracoronary ultrasound examination were performed in 78 heart transplant recipients. Quantitative intracoronary ultrasound was used to define the severity of disease at baseline (48.8±4.5 months after transplantation) and at 1-year follow-up. Platelet activation was assessed with the use of immunological surface markers of activation (ligand-induced binding site 1 [LIBS-1], P-selectin, GPIIb-IIIa) and flow cytometry. We found that LIBS-1 immunoreactivity was significantly increased in patients with diffuse disease when compared with focal transplant disease (median [quartile], 27[14, 64] versus 18[7.9, 47], P=0.04). In a logistic regression model, we found that LIBS-1 was an independent predictor for the presence and progression of diffuse tran...
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