Figure 7. Differential expression of endothelial markers across gestation in swine placentae.

Canonical biomarkers specific to endothelial cells were used as a surrogate measure of placental vascularity. Biomarkers are plotted by gestational time with respect to normalized expression. Asterisks denote corrected multiple-testing significance (p<0.05) and crosses denote a trend (p<0.1). Multiple plots are shown for FLT1 and PECAM, and this reflects the gene estimate measurements for each of the multiple probe sets printed on the short-oligonucleotide array.