Plasma plasminogen activator inhibitor-1 in angina pectoris. Influence of plasma insulin and acute-phase response.
- 1 May 1989
- journal article
- abstracts
- Published by Ovid Technologies (Wolters Kluwer Health) in Arteriosclerosis: An Official Journal of the American Heart Association, Inc.
- Vol. 9 (3), 362-367
- https://doi.org/10.1161/01.atv.9.3.362
Abstract
Plasminogen activator inhibitor-1 (PAI-1) is an important physiological inhibitor of fibrinolysis. It circulates in blood both in free active form and in inactive form complexed with tissue type plasminogen activator (t-PA). Control mechanisms for its synthesis and release from hepatocytes and endothelial cells are important in the pathogenesis of thrombosis. Possible risk factors for myocardial infarction include high insulin and PAI-1 levels, which correlate with one another in healthy subjects, and fibrinogen, which together with PAI-1, is an acute-phase reactant. We therefore studied the interrelationships between PAI-1, plasma insulin, and acute-phase proteins in 67 patients with angina pectoris. Plasma insulin correlated strongly (r = 0.59, p less than 0.001) with PAI activity, free PAI-1 antigen (r = 0.60, p less than 0.001), and total PAI-1 antigen (r = 0.58, p less than 0.001). The acute-phase proteins, fibrinogen and C-reactive protein, correlated significantly with t-PA antigen, total PAI-1 ant...Keywords
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