Figure 2: Cordyceps militaris fraction inhibits vascular endothelial growth factor-induced tube formation of human umbilical vein endothelial cells in vitro. (a) Tubular structures in human umbilical vein endothelial cells were photographed (10×). (b) Numbers of tube in human umbilical vein endothelial cells were measured. The cells were incubated with vascular endothelial growth factor (10 ng/mL) in the presence of 0, 0.625, 1.25, 2.5, or 5 μg/mL of Cordyceps militaris fraction for 6 h, and then, the cells were fixed. **P < 0.01 versus vascular endothelial growth factor -treated group