Thromb Haemost 1988; 59(01): 007-012
DOI: 10.1055/s-0038-1642556
Review Article
Schattauer GmbH Stuttgart

Plasminogen Activator Inhibitor 1 and Plasminogen Activator Inhibitor 2 in Various Disease States

Egbert K O Kruithof
The Hematology Division, Department of Medicine, University Hospital Center, CHUV, Lausanne, Switzerland
,
Annelise Gudinchet
The Hematology Division, Department of Medicine, University Hospital Center, CHUV, Lausanne, Switzerland
,
Fedor Bachmann
The Hematology Division, Department of Medicine, University Hospital Center, CHUV, Lausanne, Switzerland
› Author Affiliations
Further Information

Publication History

Received 23 June 1987

Accepted after revision 14 September 1987

Publication Date:
18 April 2018 (online)

Summary

The association of increased PA-inhibitor (PAI) activity and of PAI-1 and PAI-2 antigen levels with different pathological conditions was studied in a collective of over 300 patients. PAI-1 and PAI-2 levels were measured by specific radioimmunoassays. A good correlation was observed of PAI activity with PAI-1 antigen (r = 0.718; p <0.0001) but not with PAI-2 (r = 0.070; n.s.). Both in the controls and in the patients, PAI activity and PAI-1 antigen showed an extremely large range of values. PAI activity ranged from 0.5 to 68 U/ml and PAI-1 antigen from 6 to 600 ng/ml. Increased PAI activity and PAI-1 antigen was observed in patients with malignant tumors, cardiovascular or thromboembolic disease, in the postoperative phase, with hepatic insufficiency, after trauma and after extracorporeal circulation. The large spectrum of disease states with increased PAI activity and PAI-1 antigen reinforces previous suggestions that PAI-1 is an acute phase reactant. After extracorporeal circulation, PAI activity and PAI-1 concentrations strongly increased within one hour, remained elevated for at least one week and returned to preoperation values within 7 days.

PAI-2 values ranged from below detection limit (15 ng/ml), observed in half of the plasmas, to 485 ng/ml in a pregnant woman. High values of PAI-2 were only observed in pregnancy.

 
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