VEGF was expressed in blood capillaries and large-diameter blood vessels, while exogenous NGF promoted VEGF expression in regenerating sciatic nerves, thereby increasing angiogenesis.

• VEGF在毛细血管和较大管径血管中都能表达，外源性神经生长因子能促进再生坐骨神经中的血管表达VEGF，从而促进血管的生成。