Figure 1.

Gelatinase activities in plasma, serum, blood cell pellet, and clot. A: MMP-2 and MMP-9 activities, detected on zymograms (top), were measured in plasma (Pl), recalcified plasma (Pl + CaCl₂), and in serum as a function of time (MMP-9, middle; MMP-2, bottom). **, P < 0.01 as compared to zero point time; ^$$, P < 0.01; ^$$$, P < 0.001 as compared to plasma. B: Gelatinase activities were measured in extracts of blood cells, clot, and 7-day-lysed clot (top) and quantified by densitometry (MMP-9, middle; MMP-2, bottom). **, P < 0.01 as compared to cell pellet; ^$$, P < 0.01 as compared to nonlysed clot.