Figure 2. Expression of fibrinolytic inhibitors at the site of pulmonary emboli.
Lung tissue containing FITC-fibrin labeled (green) pulmonary emboli was immunostained (red) to detect the expression of (A) α2-antiplasmin (a2AP) and (B) PAI-1. (C) The total immune-stained area (arbitrary units; a.u) for each protein was measured in a 20× (100 μm) image of embolized vs non-embolized (control; outlined yellow) pulmonary artery in the lungs. n=3, mean ± SEM. **p<0.01; ns, non-significant.