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Glycemia, triglycerides and disease severity are best associated with higher platelet activity in patients with stable coronary artery disease

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Abstract

Background

Inconsistent findings are reported about the relation of platelet activity to disease severity in stable patients with chronic coronary artery disease (CAD). Nevertheless, most reports studied only very small groups of patients. The purpose aim of our study was to assess the relation of platelet activity to disease severity in sufficient number of patients with chronic CAD.

Methods

One hundred and sixty stable patients with chronic CAD were studied (25 with single-, 63 with double- and 72 with triple-vessel disease). 91% of them were on aspirin, 1.6% on clopidogrel medication. Platelet activity was determined as membrane expression of antigens CD62P (P-selectin, as % of positive cells) and CD41 (part of GpIIb/IIIa integrin, as mean fluorescence intensity) by flow cytometry. Platelet aggregability was measured by ADP-optical aggregometry. Data sets were compared by Kruskal-Wallis test, correlation by Spearman test. Data are shown as median with 25–75 percentiles.

Results

Membrane CD62P expression correlated with vessel severity (P < 0.001, Kruskal-Wallis test). Patients with triple-vessel disease had the highest CD62P expression (1.6; 1.1–2.0) followed by patients with double-vessel (1.2; 0.63–1.95) and single-vessel (0.7; 0.30–0.84) disease. Positive correlation was found between CD62P expression with triglycerides (r = 0.49, P < 0.05) and CD41 with fasting glucose (r = 0.48, P < 0.05). No differences in CD41 expression or ADP aggregability were found between groups.

Conclusion

Higher platelet activity is present in patients with more severe CAD. More aggressive anti-platelet treatment in these patients should be considered, especially when metabolic syndrome is simultaneously present.

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Author information

Correspondence to Pavel P. Osmancik.

Additional information

The paper was supported by Charles University Prague Research Project No. MSM 0021620817 awarded by the Ministry of Education, Youth and Physical Education of the Czech Republic.

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Osmancik, P.P., Bednar, F. & Móciková, H. Glycemia, triglycerides and disease severity are best associated with higher platelet activity in patients with stable coronary artery disease. J Thromb Thrombolysis 24, 105–107 (2007). https://doi.org/10.1007/s11239-006-9038-z

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Keywords

  • P-selectin
  • Platelet
  • Coronary artery disease
  • Metabolic syndrome