1. Crude preparations of β-lipoprotein inhibited the fibrinolytic and caseinolytic activity of plasmin: they were contaminated by α2-macroglobulin and α1-antitrypsin, known inhibitors of plasmin.

2. Purified β-lipoprotein, free from α2-macroglobulin and α1-antitrypsin, did not inhibit plasmin. It is concluded that β-lipoprotein does not have antiplasmin properties.

This content is only available as a PDF.