Haematologica
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Haematologica, Vol 92, Issue 5, e64 doi:10.3324/haematol.11480
Copyright © 2007 by Ferrata Storti Foundation
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Metabolic syndrome and venous thrombosis: potential role of microparticles

E. Andres, B. Goichot

Departments of Internal Medicine, University Hospital of Strasbourg, Strasbourg, France

Dear Sir,

We read with caution the paper of C. Ay at al about venous thromboembolism as a manifestation of the metabolic syndrome.1 It is a very interesting original work. However, to our knowledge, the authors miss to discuss the potential role of circulating procoagulant microparticles in the physiology of venous thrombosis.2 In fact, metabolic syndrome is a cluster of several atherosclerotic risk factors that includes commonly type 2 mellitus diabetes and obesity.3 Circulating procoagulant microparticles have been described in various clinical situations associated with thrombosis and in diabetic patients.2 In obese patients, we have documented an increase in circulating microparticles levels that could account for the increased risk of thrombotic complications in obesity.4 Mean procoagulant microparticles levels are markedly higher in obese patients (n=48) compared to controls (10.6±0.5 vs 3.2±0.3 nMPSeq, p<0.001). In the obese group, there was a negative correlation between microparticles and BMI (r=–0.265, p<0.05) but no relationship could be established between microparticles concentrations and markers of insulin resistance.


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  1. Ay C, Tengler T, Vormittag R, Simanek R, Dorda W, Vukovich T, Pabinger I. Venous thromboembolism – a manifestation of the metabolic syndrome. Haematologica 2006;92:374-380.[CrossRef]
  2. Morel O, Morel N, Hugel B, Jesel L, Vinzio S, Goichot B, Bakouboula B, Grunebaum L, Freyssinet JM, Toti F. The significance of circulating microparticles in physiology, inflammatory and thrombotic diseases. Rev Med Interne 2005;26:791-801.[ISI][Medline]
  3. Despres JP, Lemieux I. Abdominal obesity and metabolic syndrome. Nature 2006;444:881-7.[CrossRef][Medline]
  4. Goichot B, Grunebaum L, Desprez D, Vinzio S, Meyer L, Schlienger JL, Lessard M, Simon C. Circulating procoagulant microparticles in obesity. Diabetes Metab 2006;32:82-5.[CrossRef][ISI][Medline]




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