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  • Title: Recombinant human soluble thrombomodulin (ART-123) prevents warm ischemia-reperfusion injury in liver grafts from non-heart-beating donors.
    Author: Kashiwadate T, Miyagi S, Hara Y, Akamatsu Y, Kawagishi N, Sekiguchi S, Satomi S.
    Journal: Transplant Proc; 2012 Mar; 44(2):369-72. PubMed ID: 22410019.
    Abstract:
    BACKGROUND: Liver transplantation is an established treatment for end-stage liver disease. However, an ongoing problem worldwide concerning this treatment is the shortage of grafts. Although transplantation using grafts from non-heart-beating donors (NHBDs) is considered a promising solution, some researchers have reported that these liver grafts are associated with primary graft nonfunction and biliary complications. The purpose of this study was to establish a safe technique procuring liver grafts from marginal donors such as NHBDs. MATERIALS AND METHODS: Male Wistar rats were divided into three groups: (1) the heart-beating (HB) group, whose livers were retrieved from HB donors; (2) the non-HB (NHB) group, whose livers were retrieved from NHBDs that had experienced an apnea-induced agonal condition (for this group, livers were subjected to warm ischemia for 30 minutes after cardiac arrest); and (3) the recombinant human soluble thrombomodulin (ART-123) group, whose livers were retrieved in the same manner as the NHB group but pretreated with ART-123 (1 mg/kg) at the agonal stage. The livers were reperfused for 60 minutes with oxygenated Krebs-Henseleit bicarbonate buffer after cold preservation for 6 hours. RESULTS: Bile production and portal flow volume in the ART-123 group were significantly higher than those in the NHB group. Alanine aminotransferase levels in the ART-123 group were significantly lower than those in the NHB group. Histological findings showed the narrowing of sinusoidal spaces and necroses in the NHB group were more severe than those in the ART-123 group. CONCLUSIONS: These results suggest that thrombomodulin may improve the viability of liver grafts from NHBDs.
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