Figure 3From: Spatio-temporal expression of MMP-2, MMP-9 and tissue kallikrein in uteroplacental units of the pregnant guinea-pig (Cavia porcellus)Western blot analysis of guinea-pig placental homogenates for MMP-9. A, Representative blot at days 20, 40 and 60 of pregnancy. Purified human proMMP-9 (hProMMP-9) yielded two bands with approximate molecular weights of 92 and 68 kDa. B, Mean ratio of active/total MMP-9 in five placental homogenates for each period. **P < 0.01 for 20 vs. 40 days; ***P < 0.001 for 40 vs. 60 days. DSCF posthoc comparisons after Kruskal-Wallis test.Back to article page