The nitric oxide donor sodium nitroprusside is protective in ischemia/reperfusion injury of the pancreas

被引:26
作者
Benz, S
Schnabel, R
Weber, H
Pfeffer, F
Wiesner, R
von Breitenbuch, P
Nizze, H
Schareck, W
Hopt, UT
机构
[1] Univ Rostock, Dept Surg, D-18057 Rostock, Germany
[2] Ruhr Univ Bochum, Dept Pathol, D-44801 Bochum, Germany
[3] Univ Rostock, Dept Clin Chem, D-18057 Rostock, Germany
[4] Univ Rostock, Dept Pathol, D-18057 Rostock, Germany
关键词
D O I
10.1097/00007890-199810270-00005
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Background; The role of nitric: oxide in the ischemia/reperfusion injury of the pancreas is still unclear. In other organs, protective as well as aggravating effects have been described. We have, therefore, investigated the effect of the nitric oxide donor sodium nitroprusside on pancreatic ischemia/reperfusion injury. Methods. In Landrace pigs, after transsection of the pancreas, complete vascular isolation of the pancreatic tail was performed. The tail was subjected to 3 hr of warm ischemia and thereafter reperfusion (6 hr). The animals were divided into a control group (n=7) and a treatment group (n=7) that received 15 mg of sodium nitroprusside after reperfusion intra-arterially into the splenic artery. Results. The morphological tissue damage and lipase activity in the venous effluent of the pancreas were significantly lower in the treatment group. Partial oxygen tension in the tissue after reperfusion was markedly reduced in the control group, indicating an impairment of microcirculation. In the treatment group, however, partial oxygen tension in the tissue was significantly higher (43 vs. 20 mmHg; P<0.014). Furthermore, total blood flow through the, pancreatic tail in the treatment group was found to be significantly higher in the late reperfusion period (14 vs. 9.5 ml/min at 5 hr after reperfusion; P<0.05). Conclusion. There is a marked impairment of pancreatic microcirculation after reperfusion, Sodium nitroprusside counteracts this impairment and has a protective effect on ischemia/reperfusion injury of the pancreas.
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页码:994 / 999
页数:6
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