The relationship between plasminogen activator inhibitor-1 and insulin resistance in newly diagnosed type 2 diabetes mellitus.
It is not clear whether elevated levels of the fibrinolytic inhibitor, plasminogen activator inhibitor-1 (PAl-1) in Type 2 diabetes mellitus are the result of obesity or coexistent atherosclerosis. Therefore the relationship between PAl-1 and insulin resistance, determined by the homeostasis model assessment (HOMA) was investigated in a group of 26 insulin-resistant, normotensive newly diagnosed Type 2 diabetic patients with a low probability of atherosclerosis. Compared with a normal control group, closely matched for body mass index (BMI), fibrinolytic activity was depressed in the diabetic patients due to elevated levels of the inhibitor PAl-1, 17.6 (11.1-28) vs 8.4 (4.9-14.1) IU ml-1, p < 0.001. PAl-1 was related to BMI, r = 0.59, p < 0.001 plasma insulin, r = 0.66, p < 0.001; insulin resistance, r = 0.54, p < 0.005 and urinary albumin excretion, r = 0.48, p < 0.01, but not HbA1c or fasting glucose. PAl-1 was not related to blood pressure or plasma triglyceride levels. This study suggests that at the time of diagnosis of Type 2 diabetes mellitus, elevated PAl-1 levels are already linked to other risk factors for vascular disease including hyperinsulinaemia, insulin resistance, and urinary albumin excretion, and this is not the result of obesity or coexistent atherosclerosis.
Gough
S C
SC
Academic Unit of Medicine, The General Infirmary, Leeds, UK.
Rice
P J
PJ
McCormack
L
L
Chapman
C
C
Grant
P J
PJ
D001786:Blood Glucose / Q000378:metabolism; D001794:Blood Pressure; D002784:Cholesterol / Q000097:blood; D003924:Diabetes Mellitus, Type 2 / Q000097:blood* / Q000503:physiopathology*; D005260:Female; D005342:Fibrinolysis; D006442:Glycated Hemoglobin / Q000032:analysis; D006706:Homeostasis; D006801:Humans; D007328:Insulin / Q000097:blood*; D007333:Insulin Resistance; D007515:Islets of Langerhans / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D008954:Models, Biological; D017395:Plasminogen Activator Inhibitor 1 / Q000097:blood*; D012016:Reference Values; D012737:Sex Factors; D010959:Tissue Plasminogen Activator / Q000097:blood; D014280:Triglycerides / Q000097:blood
D001786:Blood Glucose; D002784:Cholesterol; D006442:Glycated Hemoglobin; D007328:Insulin; D017395:Plasminogen Activator Inhibitor 1; D010959:Tissue Plasminogen Activator; D014280:Triglycerides