Four weeks later, angiogenesis of ischemia models was observed and evaluated by abdominal aortography, histopathologic analysis and immunohistochemical studies with the antibodies of VEGF.

• 术后4周，各组兔行腹主动脉造影，观察侧支血管形成情况。取内收肌和腓肠肌肌组织行病理切片检查;