• Chinese Med J Peking · Oct 2003

    Vascular endothelial growth factor gene transfection to enhance the repair of avascular necrosis of the femoral head of rabbit.

    • Cao Yang, Shuhua Yang, Jingyuan Du, Jin Li, Weihua Xu, and Yufang Xiong.
    • Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430022, China. yangcaom@sina.com
    • Chinese Med J Peking. 2003 Oct 1; 116 (10): 1544-8.

    ObjectiveTo explore a new method for the therapy of avascular necrosis of the femoral head.MethodsThe recombinant plasmid pCD-hVEGF165 was mixed with collagen and was implanted in the necrotic femoral head. The expression of vascular endothelial growth factor (VEGF) was examined by RNA dot hybridization and immunohistochemical techniques. Repair of the femoral head was observed by histological and histomorphometric analysis.ResultsThe expression of VEGF was detected in the femoral head transfected with the VEGF gene. The femoral head transfected with the VEGF gene showed a significant increase in angiogenesis 2 and 4 weeks after gene transfection and a significant increase in bone formation 6 and 8 weeks after gene transfection on histomorphometric analysis (P < 0.01).ConclusionsTransfection of the VEGF gene enhances bone tissue angiogenesis. Repair of osteonecrosis could be accelerated accordingly, thus providing a potential method for therapy of osteonecrosis.

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