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| 1 | A half century (1961-2011) of applying microsurgery to experimental liver research显示文摘The development of microsurgery has been dependent on experimental animals. Microsurgery could be a very valuable technique to improve experimental models of liver diseases. Microdissection and microsutures are the two main microsurgical techniques that can be considered for classifying the experimental models developed for liver research in the rat. Partial portal vein ligation, extrahepatic cholestasis and hepatectomies are all models based on microdissection. On the other hand, in portacaval shunts, orthotopic liver transplantation and partial heterotopic liver transplantation, the microsuture techniques stand out. By reducing surgical complications, these microsurgical techniques allow for improving the resulting experimental models. If good experimental models for liver research are successfully developed, the results obtained from their study might be particularly useful in patients with liver disease. Therefore experimental liver microsurgery could be an invaluable way to translate laboratory data on liver research into new clinical diagnostic and therapeutic strategies. | Maria-Angeles Aller Natalia Arias Isabel Prieto Salvador Agudo Carlos Gilsanz Laureano Lorente Jorge-Luis Arias Jaime Arias | 2012 | World Journal of Hepatology2012，4，7： | 4 |
| 2 | 肝前性门静脉高压大鼠门静脉血流对肝脏影响的实验观察显示文摘目的研究肝前性门静脉高压大鼠门静脉血流改变对肝脏功能的影响。方法雄性Wistar大鼠66只,完全随机化分为5组:门静脉部分缝扎组(A组,n=20);部分门静脉、肝动脉顺序缝扎组(B组,n=20);肝动脉缝扎组(C组,n=10);假手术组(D组,n=10);部分门静脉、肝动脉同时缝扎组(E组,n=6)。观察术后12周各组病死率和肝功能变化情况。免疫组化方法检测肝脏汇管区小胆管周围微血管密度、肝脏胆管增生细胞核抗原;透射电镜观察肝脏超微结构的改变。结果术后12周肝功能检测显示,A、B、C、D组谷草转氨酶分别是(132.69±21.03)U/L、(154.40±28.73)U/L、(125.84±26.60)U/L、(134.02±18.42)U/L,各组之间差异无统计学意义(P〉0.05);谷丙转氨酶各组分别是(39.33±8.62)U/L、(44.84±9.47)U/L、(40.41±8.04)U/L、(38.47±7.29、)U/L,各组之间差异无统计学意义(P〉0.05)。与c、D组相比,A组和B组病死率分别为20%和25%,病死率增加,肝脏小胆管周围血管密度增加(P〈0.05);B组肝脏胆管增生细胞核抗原表达增强,平均吸光度值为0.345±0.027,较A、C、D组(平均吸光度值分别为0.264±0.015、0.258±0.022和0.249±0.021)差异均有统计学意义(P〈0.01);超微结构观察A组和B组,细胞质内可见较多脂肪颗粒聚集,线粒体可出现空泡样变。结论肝前性门静脉高压大鼠门静脉侧支血流对肝脏生理功能的维持具有较为重要的作用;肝前性门静脉高压可使肝内胆管上皮细胞和胆管周围微血管出现轻度增生,肝细胞内发生脂肪颗粒聚集;如果肝动脉血供丧失,则这些变化会更加显著。 | 李乐 周崇斌 张廷冲 陈亚军 | 2012 | 国际外科学杂志2012，39，7： | 1 |
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