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Exp Clin Endocrinol Diabetes. 2004 Apr;112(4):175-80.

Enhancement of fibrinolysis in poorly controlled, hospitalized type 2 diabetic patients by short-term metabolic control: association with a decrease in plasminogen activator inhibitor 1.

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Department of Medicine, Koshigaya Hospital, Dokkyo University School of Medicine, Koshigaya, Japan.


Impaired fibrinolysis in type 2 diabetes may be caused by an increased plasma concentration of plasminogen activator inhibitor 1 (PAI-1), although the effects of short-term hypoglycemic therapy on fibrinolytic activity are poorly understood. This study investigated the effects of metabolic improvement on fibrinolysis activity and plasma concentrations of PAI-1 in poorly controlled, hospitalized type 2 diabetic patients. Forty-eight poorly controlled type 2 diabetic patients were studied; 26 were subsequently treated with sulfonylurea (SU) and 22 with insulin. The plasma concentrations of plasmin-alpha2-antiplasmin (PAP), a measure of fibrinolytic activity, plasma PAI-1, and fasting triglycerides and glucoses were measured at the beginning and the end of hospitalization. The body mass index and fasting triglyceride decreased significantly after treatment (p < 0.0001). The plasma concentration of PAP increased significantly (p < 0.01), and the plasma PAI-1 decreased by 50% after treatment. There was an inverse correlation between the changes in the plasma concentrations of PAP and PAI-1 (r= - 0.36, p = 0.023). Treatment with SU or insulin showed an increase in plasma PAP with a concomitant decrease in the plasma PAI-1 with equivalent glycemic control. In poorly controlled type 2 diabetic patients, the plasma PAP concentration can be significantly increased and the plasma PAI-1 antigen significantly reduced, even with short-term metabolic improvements including weight reduction, a better lipid profile, and tighter glycemic control with either SU or insulin therapy, and that enhanced fibrinolysis may be mediated partly through a decrease in the plasma PAI-1 after metabolic control.

[Indexed for MEDLINE]

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