Effects of hyperglycemia and hyperinsulinemia on the tissue factor pathway of blood coagulation.
Tissue factor (TF) is the primary initiator of blood coagulation. Circulating TF procoagulant activity (TF-PCA) is associated with blood cells and microparticles and is elevated in patients with type 2 diabetes mellitus. Combined hyperinsulinemia and hyperglycemia and to a lesser degree selective hyperinsulinemia for 24 hours in healthy volunteers increased circulating TF-PCA, monocyte TF surface expression and mRNA, plasma thrombin generation, and coagulation factors VII and VIII activities, suggesting that the coagulation system had been activated. In addition, platelet CD40L and platelet-monocyte aggregates increased, indicating platelet activation. Somatostatin abolished these changes. We conclude that hyperinsulinemia, but particularly the combination of hyperinsulinemia and hyperglycemia, creates a prothrombotic state and may, in addition, be proinflammatory and proatherogenic by virtue of the actions of CD40L and TF.[1]References
- Effects of hyperglycemia and hyperinsulinemia on the tissue factor pathway of blood coagulation. Boden, G., Rao, A.K. Curr. Diab. Rep. (2007) [Pubmed]
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