Abstract:
AIMS/HYPOTHESIS:Platelet activation, endothelial dysfunction and inflammation may be involved in early stages of diabetic microangiopathy. We therefore investigated patients with Type 1 diabetes mellitus, without ( n=19) and with ( n=20) microangiopathy, matched for glycaemic control and duration of disease, and matched with healthy control subjects ( n=27). METHODS:Platelet activation was measured as platelet P-selectin expression using whole blood flow cytometry and as soluble P-selectin by immunoassay. Von Willebrand factor antigen in plasma, serum soluble E-selectin, CD40 ligand (sCD40L) and C-reactive protein (CRP) served as markers for endothelial function and inflammation. RESULTS:Thrombin-induced platelet P-selectin expression was enhanced, and soluble P-selectin and sCD40L concentrations were increased in patients with microangiopathy compared with the control subjects ( p<0.01 for both) and with patients without microangiopathy ( p<0.05 for P-selectin expression and sP-selectin), whereas all three parameters were similar in patients without microangiopathy and in the control subjects. CRP and soluble E-selectin were increased in patients with microangiopathy, compared with the control subjects ( p<0.01 and p<0.05), whereas von Willebrand factor did not differ between the groups. CONCLUSIONS/INTERPRETATION:Microangiopathy in Type 1 diabetes is associated with platelet hyperactivity, endothelial dysfunction and low-grade inflammation, indicating an increased risk for cardiovascular disease.
journal_name
Diabetologiajournal_title
Diabetologiaauthors
Yngen M,Östenson CG,Hu H,Li N,Hjemdahl P,Wallén NHdoi
10.1007/s00125-004-1352-4subject
Has Abstractpub_date
2004-03-01 00:00:00pages
537-540issue
3eissn
0012-186Xissn
1432-0428pii
10.1007/s00125-004-1352-4journal_volume
47pub_type
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