alexa Influence of cold-storage conditions on renal function of autotransplanted large pig kidneys.
Nephrology

Nephrology

Journal of Kidney

Author(s): Goujon JM, Vandewalle A, Baumert H, Carretier M, Hauet T

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Abstract BACKGROUND: The consequences of ischemia/reperfusion injury (IRI) on delayed graft function (DGF) and graft survival for kidney recipients remain a matter of debate. Several strategies have been proposed to reduce IRI. We have shown that adding the anti-ischemic drug trimetazidine (TMZ) to different preservation solutions had beneficial effects on the function of reperfused rat and pig kidneys. METHODS: We analyzed the renal parameters of reperfused, autotransplanted large pigs following transplantation. The left kidneys were first removed and cold flushed with Euro-Collins (EC) and University of Wisconsin (UW) solutions (with or without 10-6 mol/L TMZ) and were stored for 48 hours at 4 degrees C. The kidney was then autotransplanted, and the contralateral kidneys were removed. Creatinine clearance, natriuresis, proteinuria, the degree of interstitial fibrosis, the number of CD4, CD8, and macrophage-positive cells, and the amount of vascular cell adhesion molecule-1 were analyzed on kidney biopsies taken at 2, 4 to 5, and 10 to 12 weeks after surgery. RESULTS: The functions of the transplanted kidneys were better preserved after cold flushing with TMZ-supplemented solutions than with TMZ-free solutions. Creatinine clearance was higher, and proteinuria was lower in animals transplanted with kidneys cold flushed with TMZ-supplemented solutions than with TMZ-free solutions. The cytoprotective action of TMZ also reduced interstitial fibrosis and the numbers of infiltrating CD4- and CD8-positive cells. CONCLUSION: These results indicate that the condition of cold preservation may influence long-term kidney graft functions and suggest that, to a certain extent, TMZ reduces the degree of interstitial fibrosis. This article was published in Kidney Int and referenced in Journal of Kidney

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