Fig. 7

a In vitro secretion profile of MMP-9 in human placental explants. MMP-9 was measured by ELISA in the cultured medium in the basal condition and with different treatments. Data represent 10 independent experiments ± S.E.M., performed in triplicate. P ≤ 0.05 δ versus LPS treatment. b Representative zymogram showing the gelatinase activity present in the cultured medium obtained after each treatment