Figure 5

Gelatin zymography of placental homogenates. A, Representative zymogram at days 20, 40 and 60 of pregnancy. Purified human proMMP-2 (hproMMP-2) and proMMP-9 (hproMMP-9) were used as standards. B-C, Densitometric analysis of zymograms from three placental homogenates at days 20, 40 and 60 for Pro/MMP-2 (B) and Pro/MMP-9 (C). Data is expressed with respect to the average densitometry at day 20. *, P < 0.05 for 40 vs. 20 and 60 days in (B); *, P < 0.05 for 40 and 60 vs. 20 days in (C). DSCF posthoc comparisons after Kruskal-Wallis test.