目的探讨重组葡激酶(r-Sak)的溶栓活性及对纤维蛋白溶解系统的影响。方法通过对家兔内膜受损颈动脉内注射凝血酶产生的富红细胞血栓形成动物模型(21只),分别给予0.5ml/kg生理盐水(NS)(对照组5只)、27500IU/kg尿激酶(UK)(阳性对照组8只)...目的探讨重组葡激酶(r-Sak)的溶栓活性及对纤维蛋白溶解系统的影响。方法通过对家兔内膜受损颈动脉内注射凝血酶产生的富红细胞血栓形成动物模型(21只),分别给予0.5ml/kg生理盐水(NS)(对照组5只)、27500IU/kg尿激酶(UK)(阳性对照组8只)及27500AU/kg r-Sak(实验组8只),比较各组用药前、后颈动脉血流量(CBF)的变化及对纤维蛋白溶解系统指标的影响。结果r-sak对颈动脉富红细胞血栓产生明显的溶栓作用,与等剂量UK比较,出现再通所需时间短(18.3±5.9min VS 28.6±3.5min,P<0.01),实验组用药后CBF最大值(Max)与用药前CBF值的差(△)较阳性药对照组有显著性差异(5.14±0.61m1/min VS 3.31±0.95 ml/min,P<0.001);同时,r-Sak对凝血酶原时间(PT)、活化部分凝血活酶时间(APTT)、α-抗纤维蛋白溶解酶(α-AP)活性、纤维蛋白原(Fg)、纤维蛋白溶解酶原(Pg)等凝血及纤维蛋白溶解系统指标均无明显影响(P>0.05)。阳性对照组和实验组中各有25％(2/8)发生了动脉穿刺点渗血,均于20min内自行停止。结论 国产r-Sak作为一种新型的纤维蛋白选择性溶栓剂,有可能为临床溶栓治疗提供新的手段,且无严重副作用,值得作进一步研究。展开更多
Objective: To investigate the effect of recombinant staphylokinase (r-Sak) and the Chinese medicine Yihuo Qingyi Decoction (益活凊胰汤 Herbal decoction for severe acute pancreatitis) in the treatment of the severe acu...Objective: To investigate the effect of recombinant staphylokinase (r-Sak) and the Chinese medicine Yihuo Qingyi Decoction (益活凊胰汤 Herbal decoction for severe acute pancreatitis) in the treatment of the severe acute pancreatitis (SAP) in rats, and to observe the synergistic effect of the two. Methods: One hundred and sixty-two adult male SD rats with the body mass of 250–280 g were randomly divided into the following 5 groups: sham operation group (n=18), control group (n=36), Yihuo Qingyi Decoction treatment group (n=36), r-Sak treatment group (n=36), and Yihuo Qingyi Decoction plus r-Sak treatment group (n=36). The SAP ratmodel was prepared by retrograde injection of 5% sodium taurocholate into the cholangiopancreatic duct. Two days before modeling, Yihuo Qingyi Decoction was intragastrically administrated, and r-Sak was intraperitoneally injected. The survival rate within 18 h after modeling was determined. The pancreatic blood flow, the weight of ascites, and the serum amylase and lipase were investigated at 6 h, 12 h, and 18kh after modeling, and the pancreatic tissue was examined under light microscopy to see its pathological change. Results: The 18 h survival count of group A,B,C,D and E rats was 9,2,6,7 and 8 respectively. After r-Sak and Yihuo Qingyi Decoction intervention, the serum amylase and lipase and the weight of ascites were significantly decreased, especially in group E.18 h after modeling, the level of the serum amylase and lipase and the weight of ascites in group E was 1 100±118 U·L-1,1 000±150 U·L-1 and 13.40±1.80 g respectively, obviously lower than that of group B (P<0.05).After SAP was induced, the pancreatic blood flow showed a tendency to decrease, but the decrease extent in the treatment groups was smaller than that in the control group.18h after modeling, the pancreatic blood flow in group B and group E was 30.16±8.96 mL·100 g-1·min-1,and 129.10±42.58 mL·100 g-1·min-1 respectively, there was significant difference (P<0.05). The pathological change of the pancreatic tissue was alleviated in the treatment groups. Conclusion: Both r-Sak and Yihuo Qingyi Decoction play a beneficial role in the treatment of rat SAP and there is a synergistic effect between the two.展开更多
文摘目的探讨重组葡激酶(r-Sak)的溶栓活性及对纤维蛋白溶解系统的影响。方法通过对家兔内膜受损颈动脉内注射凝血酶产生的富红细胞血栓形成动物模型(21只),分别给予0.5ml/kg生理盐水(NS)(对照组5只)、27500IU/kg尿激酶(UK)(阳性对照组8只)及27500AU/kg r-Sak(实验组8只),比较各组用药前、后颈动脉血流量(CBF)的变化及对纤维蛋白溶解系统指标的影响。结果r-sak对颈动脉富红细胞血栓产生明显的溶栓作用,与等剂量UK比较,出现再通所需时间短(18.3±5.9min VS 28.6±3.5min,P<0.01),实验组用药后CBF最大值(Max)与用药前CBF值的差(△)较阳性药对照组有显著性差异(5.14±0.61m1/min VS 3.31±0.95 ml/min,P<0.001);同时,r-Sak对凝血酶原时间(PT)、活化部分凝血活酶时间(APTT)、α-抗纤维蛋白溶解酶(α-AP)活性、纤维蛋白原(Fg)、纤维蛋白溶解酶原(Pg)等凝血及纤维蛋白溶解系统指标均无明显影响(P>0.05)。阳性对照组和实验组中各有25％(2/8)发生了动脉穿刺点渗血,均于20min内自行停止。结论 国产r-Sak作为一种新型的纤维蛋白选择性溶栓剂,有可能为临床溶栓治疗提供新的手段,且无严重副作用,值得作进一步研究。
基金supported by grants from "Tenth five-years" 863 Biological High-tech Foundation (No.2001AA215161)
文摘Objective: To investigate the effect of recombinant staphylokinase (r-Sak) and the Chinese medicine Yihuo Qingyi Decoction (益活凊胰汤 Herbal decoction for severe acute pancreatitis) in the treatment of the severe acute pancreatitis (SAP) in rats, and to observe the synergistic effect of the two. Methods: One hundred and sixty-two adult male SD rats with the body mass of 250–280 g were randomly divided into the following 5 groups: sham operation group (n=18), control group (n=36), Yihuo Qingyi Decoction treatment group (n=36), r-Sak treatment group (n=36), and Yihuo Qingyi Decoction plus r-Sak treatment group (n=36). The SAP ratmodel was prepared by retrograde injection of 5% sodium taurocholate into the cholangiopancreatic duct. Two days before modeling, Yihuo Qingyi Decoction was intragastrically administrated, and r-Sak was intraperitoneally injected. The survival rate within 18 h after modeling was determined. The pancreatic blood flow, the weight of ascites, and the serum amylase and lipase were investigated at 6 h, 12 h, and 18kh after modeling, and the pancreatic tissue was examined under light microscopy to see its pathological change. Results: The 18 h survival count of group A,B,C,D and E rats was 9,2,6,7 and 8 respectively. After r-Sak and Yihuo Qingyi Decoction intervention, the serum amylase and lipase and the weight of ascites were significantly decreased, especially in group E.18 h after modeling, the level of the serum amylase and lipase and the weight of ascites in group E was 1 100±118 U·L-1,1 000±150 U·L-1 and 13.40±1.80 g respectively, obviously lower than that of group B (P<0.05).After SAP was induced, the pancreatic blood flow showed a tendency to decrease, but the decrease extent in the treatment groups was smaller than that in the control group.18h after modeling, the pancreatic blood flow in group B and group E was 30.16±8.96 mL·100 g-1·min-1,and 129.10±42.58 mL·100 g-1·min-1 respectively, there was significant difference (P<0.05). The pathological change of the pancreatic tissue was alleviated in the treatment groups. Conclusion: Both r-Sak and Yihuo Qingyi Decoction play a beneficial role in the treatment of rat SAP and there is a synergistic effect between the two.
