PMID: 9179121Jun 1, 1997Paper

Protective effect of nafamostat mesilate in early wound healing

Journal of the American College of Surgeons
Y TsutamotoM Kodama

Abstract

Tensile strength in rat ileal anastomosis is diminished after injection with superoxide dismutase. We have studied the immunohistochemistry of extracellular matrix to investigate changes associated with this loss of tensile strength. A serine proteinase inhibitor, Nafamostat mesilate, was used to evaluate its potential for maintaining tensile strength. Four groups of rats underwent ileal anastomosis, Groups 1 and 2 were controls. Groups 3 and 4 were given superoxide dismutase and Nafamostat mesilate, respectively, after anastomosis. In controls, groups 1 and 2, tensile strength decreased to 58 percent and 57 percent, respectively, of the initial value measured immediately after anastomosis 1 day postoperatively and both dropped to 33 percent 3 days postoperatively. After 5 days, tensile strength recovered to 83 percent of initial value. In comparison with controls, administration of superoxide dismutase significantly attenuated the loss of tensile strength on day 1 (94 percent of initial value, p < 0.01) and on days 3, 5 and 7 (p < 0.05). Similar results were found after administration of Nafamostat mesilate on days 3 and 5 (p < 0.05). In group 1, degradation of the collagen layer in the anastomosis was observed, with disappear...Continue Reading

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