To study the characteristics of VEGF and its geneexpression in CASS rabbit carotid arteries pre- and post-CEA, and toprovide scientific basis for experimental studying of VEGFpreventing restenosis after CEA.

• 2：研究CASS家兔CEA手术前后局部动脉壁VEGF及其基因表达的特点，为下一步VEGF防治CEA后再狭窄的实验研究提供科学依据。