Results of Syndecan-1 assay were similar to HS that preeclampsia rats have higher level of Syndecan-1 in serum 1, 3, and 5 days after model made which was decreased by Ropivacaine significantly after 3 and 5 days of treatment (P < 0.05) (Figure 3b). This evidence concerns the gene SDC1 and preeclampsia.