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- W4043397 abstract "Oxygen-derived free radicals have been implicated in reperfusion injury in various tissues. The present study determined if enzymatic scavenging of free radicals could improve recovery of hepatic function following ischemia. Livers from fasted rats were perfused with Krebs-HCO/sub 3/ buffer with substrates for gluconeogenesis for 30 min (control) followed by 60 min warm ischemia and 90 min reperfusion. At the beginning and end of ischemia the liver was flushed with buffered Ringer's with superoxide dismutase + catalase (150,000 U/L each)(SOD) or without additions (Untreated). Bile flow and glucose release were monitored during control and reperfusion periods and tissue sampled at the end of the experiment to determine tissue water and electrolytes. Bile flow and gluconeogenesis were markedly depressed after ischemia in both groups. At the end of 90 min reperfusion bile flow in Untreated and SOD were 23 +/- 6 and 46 +/- 8 ..mu..l/15 min (20% and 41% of control respectively, p < .01). Gluconeogenesis recovered to 83 +/- 4% of control in Untreated vs 103 +/- 6% with SOD (p < .05). Tissue water and electrolytes were not different. These results suggest that generation of oxygen-derived free radicals contributes to functional deficits in the liver following ischemia andmore » that these defects can be attenuated by enzymatic scavenging.« less" @default.
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- W4043397 date "1986-03-05" @default.
- W4043397 modified "2023-09-24" @default.
- W4043397 title "Amelioration of hepatic reperfusion injury by superoxide dismutase and catalase" @default.
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