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Morphological features of Human Umbilical Vein Endothelial Cells after different treatments. HUVECs were plated on a well coated with 100 μl of Matrigel basement membrane matrix. After they were treated with PPE for 24 hr, the cells were dyed and photographed with a Nikon camera attached to a fluorescent microscope at ×10 magnification. A: HUVECs were treated with PPE +T0070907, B: HUVECs were treated with PPE +GW6471, C: Treatment of the cells with PPE, D: control group
