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  • Title: Experimental study on genistein prevention and treatment of transplant arteriosclerosis in aortic transplants of rat.
    Author: Zhu GC, Ding Z, Chen ZS, Dong C, Guo H, Chen BC.
    Journal: Transplant Proc; 2006 Dec; 38(10):3307-8. PubMed ID: 17175256.
    Abstract:
    OBJECTIVE: Our objective was to study the effects of genistein, a soy isoflavone, on transplant arteriosclerosis, in addition to its immunosuppressive and antioxidant properties. MATERIALS AND METHODS: We performed male Brown-Norway to male Lewis aortic transplantation. The recipients were randomly assigned to 3 groups: no treatment controls, dimethyl sulfoxide (DMSO; 5 mL/kg) solvent controls, and experimental group that received genistein (20 mg/kg/d) by daily intraperitoneal injection. On postoperative day 60, the graft was harvested and blood obtained. The transplanted aorta was analyzed by histology and immunohistochemistry. The serum was analyzed by an enzyme-linked immunosorbent assay (ELISA). RESULTS: Compared with the 2 controls, leukocyte recruitment to the graft was significantly inhibited by genistein, with a profound reduction in the number of CD69 macrophages infiltrating the adventitia of the transplanted aortas. Moreover, genistein significantly inhibited the expression of VEGF and IFN-gamma production (P < .01). CONCLUSION: These results suggested that the protein tyrosine kinase inhibitor genistein inhibited graft arteriosclerosis.
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