Effect of Ingredients of Astragalus Salvia Compound on Vascular Endothelial Cell in Placenta and Vascular Endothelial Growth Factor mRNA Expression in Trophocyte in Pregnant Rats with Inhibited Nitric Oxide Synthesis

• 黄芪丹参复方提取物对一氧化氮合成阻滞孕鼠胎盘血管内皮细胞及滋养细胞血管内皮生长因子mRNA表达影响