(I) Quantitative RT-PCR analysis of expression of MMP2, MMP9, IL6, and the JAK-STAT targets IFNAR1 and IFNAR2, in normal placentas and placentas from IUGR-complicated pregnancies. Results are from four human normal placentas and four placentas from IUGR-complicated pregnancies. Data information: Values are means + SEM of at least three experimental repeats. Statistical significance was determined by unpaired two-tailed Student's t-test (*) p < 0.05; (**) p < 0.01; (***) P<0.001. 