Abstract

Objective This study was to detect the expression and level of vascular endothelial growth factor(VEGF)in the acute rejection reaction of orthotopic liver transplantation in rats,which attempted to prove whether VEGF is the key molecule mediating the inter-permeate and inter-enhancement mediated by cells between Angiogenesis and inflammation reaction Methods Expressions of VEGF in plasm in liver and spleen were detected using immunohistochemical staining.The levels of VEGF were measured with enzyme linked immunosorbent assay(ELISA).Results The expression of VEGF in liver,spleen and the level of VEGF in plasma in experiment group were higher than that in the control group(P＜0.05),which were the highest in two days after operation.Conclusion VEGF may play a significant role in the acute rejection reaction of orthotopic liver transplantation in rats.There was a close relation between the expression and level of VEGF in liver,spleen and survival time of graft.VEGF was a kind factor which is expressed in early stage. Key words: Vascular endothelial groweh factor; orthotopic liver transplantation; acute rejection reaction

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