The Relationship between the Expression of Bone Morphogenetic Protein-2 and Matrix Metalllopro Teinase-9 in Fetal Membrane and Premature Rupture of Membranes / 实用妇产科杂志

ABSTRACT

Objective:To study the correlation between the bone morphogenetic proteins (BMP-2) and matrix metalloproteinase-9(MMP-9) in fetal membrane and premature rupture of membranes. Methods: 18 samples were selected separately from each of the following groups puerpera with term pregnancy in labor, puerpera with term premature rupture of membranes(PROM), puerpera in preterm labor, puerpera with pre-tenm PROM and puerpera with term pregnancy not in labor (control group). After labor, fetal membranes in the rupture site were taken out. Immunobistochemistry and pathologic image multimedia operation system were adopted to semiquantitative analyze the area integrated optical density (AIOD) of the positive expression of BMP-2 and MMP-9. Results:①The AIOD of BMP-2 and MMP-9 positive expression in fetal membranes was higher in term pregnancy in labor group, term PROM group, preterm labor group and PROM group than that in control group. There was statistic difference ( P < 0. 0071). ②The AIOD of BMP-2 and MMP-9 in term PROM group was higher than that in term pregnancy in labor group(P=0.0065,P=0.0069), which was higher in PROM group than that in preterm labor group (P=0.0069, P = 0.0052) and term PROM group P=0.0037, P =0.0065),③There was obviously positive correlation between BMP-2 and MMP-9 expression in the fetal membranes in five groups. ( r_s =0.76159,P<0.0001). Conclusions: The expression of MMP-9 and BMP-2 is closely relevant to the repture of membranes. There is a correlation between BMP-2 and MMP-9 expression in fetal membranes.