Q J Med 1987; 65: 1025-1031
© 1987 Association of Physicians
research-article |
Thrombin and Plasmin Activity in Diabetes Mellitus and their Association with Glycaemic Control
Diabetic Unit, Roal Infirmary Glasgow G31 2ER *University Department of Medicine, Royal Infirmary Glasgow G31 2ER
Address correspondence to Dr M. Small, University Department of Medicine, Royal Infirmary, Glasgow G31 2ER.
Accepted for publication 30 July 1987.
Abnormalities of haemostasis are common in diabetes mellitus. As indicators of fibrinolysis and coagulation, plasmin and thrombin activity were assessed by assay of the fibrinogen peptide derivatives Bß15-42 and fibrinopeptide A respectively in 60 diabetic patients and 50 control subjects in a cross-sectional study. Glycosylated haemoglobin (HbA1) correlated with Bß15-42 (r=0.26, p<0.05) and fibrinopeptide A (r=0.30, p<0.05) in the diabetic patients suggesting that poor glycaemic control (i.e high HbA1 levels) was associated with depressed plasmin and enhanced thrombin activity. Compared to controls, fibrinopeptide A levels were increased in diabetics (p<) irrespective of sex or type of diabetes. Bß15-42 levels were normal in diabetic females but increased in diabetic men (p<0.001) possibly secondary to the activation of coagulation. These results suggest that in diabetes mellitus activation of coagulation is the dominant haemostatic abnormality and that better glycaemic control could influence in-vivo plasmin and thrombin activity favourably.