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  • Title: Beneficial effect of EPC-K1 on the survival of warm ischemic damaged graft in rat cardiac transplantation.
    Author: Tanemoto K, Sakagami K, Orita K.
    Journal: Acta Med Okayama; 1993 Apr; 47(2):121-7. PubMed ID: 8506749.
    Abstract:
    A newly introduced compound, EPC-K1, represents a phosphate diester linkage of vitamin E and vitamin C. The effect of EPC-K1 on the reperfusion injury was evaluated in a heterotopic cardiac transplantation model using syngenic combination rats. Prior to the warm ischemia, 12mg EPC-K1/kg was administered intravenously to donor rats. After 15 min of warm ischemic time, hearts were harvested and perfused with 4 degrees C saline. After completion of the transplantation, recipient rats were also treated with intravenous 12 mg EPC-K1/kg, before reperfusion. Saline was used instead of EPC-K1 for both donors and recipients in the control group. On the 7th post-transplantation day, graft survival was 7 out of 8 in EPC-K1 group, versus 1 out of 9 in the control group (p < 0.001). Thiobarbituric acid-reactive substance levels in the recipient serum, three hours after reperfusion, were significantly limited, in the group in which EPC-K1 was administered only to donors. But it was not possible to clarify whether the effect of EPC-K1 is primarily at the donor or recipient levels at this time. These results indicate that EPC-K1 may reduce reperfusion injury after cardiac transplantation. This beneficial effect may be mediated by the hydroxyl radical scavenging properties of EPC-K1.
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