| Popis: |
To evaluate the effects of ulinastatin (UTI) on lung injury induced by simultaneous pancreas-kidney transplantation in piglet.With reproduction of simultaneous pancreas-kidney transplantation model in piglets, 12 couples of piglets were randomly divided into two groups (n=12). Piglets in UTI group were given a constant infusion of UTI 15 kU x kg(-1) x h(-1) by means of a pump during operation. Control group were treated with constant pumped infusion of 0.9% saline in equal volume. The blood samples were collected to measure the plasma concentrations of superoxide dismutase (SOD), malondialdehyde (MDA), tumor necrosis factor-alpha (TNF-alpha) and interleukin-8 (IL-8) before operation (baseline levels, T0), at the time of re-establishment of circulation with successful an anastomosis of arteries and veins (T1), at 1 hour and 2 hours after re-establishment of circulation (T2 and T3), and at the end of operation (T4). The pathological changes in the lungs were examined.In control group, plasma MDA concentration was significantly increased from T1 till T4 as compared with T0 (all P0.05), whereas in group UTI it did not change significantly (all P0.05). In group UTI, SOD activity was significantly increased at T1-2 and T4 as compared with T0 (all P0.05), whereas in control group it did not change significantly (all P0.05). The plasma MDA concentration was significantly decreased at T1 and T2, and SOD activity was increased at T2 in group UTI than those in control group (all P0.05). In control group, plasma TNF-alpha concentration was significantly increased from T2 to T4 as compared with T0 (all P0.05), whereas it did not change significantly in group UTI (all P0.05). The plasma IL-8 concentration was significantly decreased at T1-2 and T4 in group UTI compared with those in control group (both P0.05).UTI can inhibit neutrophil aggregation in lungs and expression of harmful inflammatory cytokines, and it reduces production of oxygen free radical, so that it can protect lung tissue from injury induced by simultaneous pancreas-kidney transplantation. |
