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Published in: Thrombosis Journal 1/2017

Open Access 01-12-2017 | Research

vWF/ADAMTS13 is associated with on-aspirin residual platelet reactivity and clinical outcome in patients with stable coronary artery disease

Authors: Ellen M. K. Warlo, Alf-Åge R. Pettersen, Harald Arnesen, Ingebjørg Seljeflot

Published in: Thrombosis Journal | Issue 1/2017

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Abstract

Background

The mechanisms behind residual platelet reactivity (RPR) despite aspirin treatment are not established. It has been shown that coronary artery disease (CAD) patients with high on-aspirin RPR have elevated levels of von Willebrand factor (vWF). ADAMTS13 is a metalloprotease cleaving ultra large vWF multimers into less active fragments.
Our aim was to investigate whether ADAMTS13 and vWF/ADAMTS13 ratio were associated with high RPR, and further with clinical endpoints after 2 years.

Methods

Stable aspirin-treated CAD patients (n = 999) from the ASCET trial. RPR was assessed by PFA-100. ADAMTS13 antigen and activity were analysed using chromogenic assays. Endpoints were a composite of acute myocardial infarction, stroke and death.

Results

The number of patients with high RPR was 258 (25.8%). Their serum thromboxane B2 (TxB2) levels were low, indicating inhibition of COX-1. They had significantly lower levels of ADAMTS13 antigen compared to patients with low RPR (517 vs 544 ng/mL, p = 0.001) and significantly lower ADAMTS13 activity (0.99 vs 1.04 IU/mL, p = 0.020). The differences were more pronounced when relating RPR to ratios of vWF/ADAMTS13 antigen and vWF/ADAMTS13 activity (p < 0.001, both). We found an inverse correlation between vWF and ADAMTS13 antigen (r = −0.14, p < 0.001) and ADAMTS13 activity (r = −0.11, p < 0.001). No correlations between TxB2 and ADAMTS13 antigen or activity, were observed, implying that ADAMTS13 is not involved in TxB2 production. Patients who experienced endpoints (n = 73) had higher vWF level (113 vs 105%, p = 0.032) and vWF/ADAMTS13 antigen ratio (0.23 vs 0.20, p = 0.012) compared to patients without. When dichotomizing vWF/ADAMTS13 antigen at median level we observed that patients above median had higher risk for suffering endpoints, with an adjusted OR of 1.86 (95% CI 1.45, 2.82).

Conclusion

These results indicate that ADAMTS13 is of importance for RPR, and that it in combination with vWF also is associated with clinical endpoints in stable CAD patients on aspirin.

Trial registration

Clinicaltrials.gov NCT00222261. Registered 13.09.2005. Retrospectively registered.
Appendix
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Literature
15.
go back to reference Andersen K, Hurlen M, Arnesen H, Seljeflot I. Aspirin non-responsiveness as measured by PFA-100 in patients with coronary artery disease. Thromb Res. 2002;108:37–42.CrossRefPubMed Andersen K, Hurlen M, Arnesen H, Seljeflot I. Aspirin non-responsiveness as measured by PFA-100 in patients with coronary artery disease. Thromb Res. 2002;108:37–42.CrossRefPubMed
17.
26.
go back to reference Enooku K, Kato R, Ikeda H, Kurano M, Kume Y, Yoshida H, et al. Inverse correlations between serum ADAMTS13 levels and systolic blood pressure, pulse pressure, and serum C-reactive protein levels observed at a general health examination in a Japanese population: a cross-sectional study. Clin Chim Acta. 2013;421:147–51. https://doi.org/10.1016/j.cca.2013.03.012.CrossRefPubMed Enooku K, Kato R, Ikeda H, Kurano M, Kume Y, Yoshida H, et al. Inverse correlations between serum ADAMTS13 levels and systolic blood pressure, pulse pressure, and serum C-reactive protein levels observed at a general health examination in a Japanese population: a cross-sectional study. Clin Chim Acta. 2013;421:147–51. https://​doi.​org/​10.​1016/​j.​cca.​2013.​03.​012.CrossRefPubMed
35.
go back to reference Cattaneo M, Federici AB, Lecchi A, Agati B, Lombardi R, Stabile F, et al. Evaluation of the PFA-100 system in the diagnosis and therapeutic monitoring of patients with von Willebrand disease. Thromb Haemost. 1999;82:35–9. Cattaneo M, Federici AB, Lecchi A, Agati B, Lombardi R, Stabile F, et al. Evaluation of the PFA-100 system in the diagnosis and therapeutic monitoring of patients with von Willebrand disease. Thromb Haemost. 1999;82:35–9.
36.
go back to reference Folsom AR, KK W, Rosamond WD, Sharrett AR, Chambless LE. Prospective study of hemostatic factors and incidence of coronary heart disease: the atherosclerosis risk in communities (ARIC) study. Circulation. 1997;96:1102–8.CrossRefPubMed Folsom AR, KK W, Rosamond WD, Sharrett AR, Chambless LE. Prospective study of hemostatic factors and incidence of coronary heart disease: the atherosclerosis risk in communities (ARIC) study. Circulation. 1997;96:1102–8.CrossRefPubMed
Metadata
Title
vWF/ADAMTS13 is associated with on-aspirin residual platelet reactivity and clinical outcome in patients with stable coronary artery disease
Authors
Ellen M. K. Warlo
Alf-Åge R. Pettersen
Harald Arnesen
Ingebjørg Seljeflot
Publication date
01-12-2017
Publisher
BioMed Central
Published in
Thrombosis Journal / Issue 1/2017
Electronic ISSN: 1477-9560
DOI
https://doi.org/10.1186/s12959-017-0151-3

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