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AIM:To investigate whether amifostine contributes to the antioxidant and cytoprotective effects of histidinetryptophan-ketoglutarate(HTK)and University of Wisconsin(UW)preservation solutions.METHODS:Forty-eight Sprague Dawley male ratswere equally divided into six groups:(1)ringer Lactate(RL)group;(2)RL+amifostine(RL+A)group;(3)HTK group;(4)HTK+A group;(5)UW group;and(6)UW+A group.Rats in the RL+A,HTK+A and UW+A groups were administered amifostine intraperitoneally at a dose of 200 mg/kg prior to laparotomy.The RL group was perfused with RL into the portal vein.The RL+A group were perfused with RL into the portal vein after amifostine administration.The HTK group received an HTK perfusion while the HTK+A group received an HTK perfusion after administration of amifostine.The UW group received a perfusion of UW,while the UW+A group received a UW perfusion after amifostine administration.Liver biopsy was performed to investigate histopathological,immunochemical[transferase mediated dUTP nick end labeling(TUNEL),inducible nitric oxide syntetase(iNOS)]and ultrastructural alterations.Biochemical alterations were determined by examining levels of alanine aminotransferase,alkaline phosphatase and nitric oxide in the perfusion fluid.RESULTS:Pathological sinusoidal dilatation and centrilobular hydropic alteration were significantly lower in the groups that received amifostine prior to preservation solution perfusion.Although the best results were obtained in the UW+A group,we did not observe a statistically significant difference between the UW+A and HTK+A groups.iNOS grades were significantly lower in the amifostine groups 12 h after treatment.When the amifostine groups were compared against each other,the iNOS grades obtained from the UW+A and HTK+A groups were similar while the RL+A group had a much poorer score.TUNEL assays demonstrated a lower apoptosis ratio in the amifostine groups than in the non-amifostine groups 12 h after treatment.No statistically significant difference was observed between the UW+A and HTK+A groups for apoptosis.Cellular ultrastructure was best preserved in the UW+A and HTK+A groups.CONCLUSION:Here,we show that preoperative administration of a single dose of amifostine is sufficientto minimize the preservation damage in hepatic cells.
AIM: To investigate whether amifostine contributes to the antioxidant and cytoprotective effects of histidinetryptophan-ketoglutarate (HTK) and University of Wisconsin (UW) preservation solutions. METHODS: Forty-eight Sprague Dawley male ratswere equally divided into six groups: (1) ringer Lactate (RL) group; (2) RL + amifostine (RL + A) group; (3) HTK group; (4) HTK + A group; (5) UW group; and (6) UW + A group.Rats in the RL + A, HTK + A and UW + A groups were administered amifostine intraperitoneally at a dose of 200 mg / kg prior to laparotomy.The RL group was perfused with RL into the portal vein. The RL + A group were perfused with RL into the portal vein after amifostine administration.The HTK group received an HTK perfusion while the HTK + A group received an HTK perfusion after administration of amifostine. The UW group received a perfusion of UW, while the UW + A group received a UW perfusion after amifostine administration. Liver biopsy was performed to investigate histopathological, immunochemical [transferase mediated dUTP n ick end labeling (TUNEL), inducible nitric oxide syntetase (iNOS)] and ultrastructural alterations.Biochemical alterations were determined by examining levels of alanine aminotransferase, alkaline phosphatase and nitric oxide in the perfusion fluid .RESULTS: Pathological sinusoidal dilatation and centrilobular hydropic alteration were significantly lower in the groups that received amifostine prior to preservation solution perfusion. Although the best results were obtained in the UW + A group, we did not observe significant in difference between the UW + A and HTK + A groups. iNOS grades were significantly lower in the amifostine groups 12 h after treatment. Comparison of the amifostine groups were compared against each other, the iNOS grades obtained from the UW + A and HTK + A groups were similar while the RL + A group had a much poorer score. demonstrated a lower apoptosis ratio in the amifostine groups than in the non-amifostine groups 12 h after treatment. No significant significant difference was observed between the UW + A and HTK + A groups for apoptosis. Cellular ultrastructure was best preserved in the UW + A and HTK + A groups. CONCLUSION: Here, we show that preoperative administration of a single dose of amifostine is sufficientto minimize the preservation damage in hepatic cells.