Objective To investigate the mechanism of hyperacute rejection (HAR) in pig to rhesus monkey vein xenograft. Methods Porcine femoral vein was transplanted into rhesus monkey. Deposits of IgM, IgG, C3 and C4 on the grafts were observed by immunoflurescence. Results Great deal of IgM, C3 and C4 were seen along the endothelium of donor vein, but IgG was not seen. ConclusionIn pig to monkey xenograft model, HAR is intiated by the binding of xenoreactive IgM to donor xenoantigens and followed by the activation of complement via the classical pathway.
Objective To explore the operative managements of ectopic gallbladder during laparoscopic cholecystectomy (LC).Methods Twenty one cases of ectopic gallbladder undergone LC in this hospital were analyzed regarding the perioperative management, principle, and technique of operation.Results There were 2 cases of situs transversus, 1 case with gallbladder under right posterior lobe of liver, 2 under left lateral lobe of liver and 16 in the liver. All 21 cases of ectopic gallbladder had undergone LC successfully, and no complications were found during and after operation. Conclusion Anatomic ectopia of gallbladder tosses a challenging problem to laparoscopic surgeon. It is safe for surgeons to recognise actual anatomical anomaly and to manage them appropriately.
【Abstract】Objective To study the effects of Chinese traditional medicine Sanqizonggan on bacterial translocation in rats with acute necrotizing pancreatitis (ANP).Methods The rat model of ANP was established by retrograde bilepancreatic duct injection of 5% sodium taurocholate. All rats were randomly divided into three groups: the shamoperation group(n=30), ANP group(n=30), and ANP+Chinese traditional medicine group (n=30). The serum amylase was detected at 0 h,12 h,24 h, and oneweek survival rate and pancreatic histological changes were observed in three groups, and the bacterial translocation from intestinal lumen was examined. Results The survival rate of the group treated with Chinese traditional medicine was significantly higher than that of the ANP group. The rate of bacterial translocation in the treated group significantly decreased. Conclusion The Chinese traditional medicine Sanqizonggan can promote gastrointestinal movement, protect intestinal mucosa and reduce bacterial translocation from intestinal lumen.
Objective To investigate the mechanism of radix salviae miltiorrhizae (RSM) injection in treatment of pancreatitis through observing the changes of activity of nuclear factor-kappa B (NF-κB) in pancreas of rats with severe acute pancreatitis (SAP) and the influence of RSM injection upon NF-κB in pancreas tissue. Methods Seventy-five rats were randomly divided into 3 groups: normal control group, SAP group and RSM treatment group, which were injected with normal saline, normal saline or RSM in the peritoneal cavity, respectively. The model of SAP rats was made by injecting L-arginine into peritoneal cavity and by subcutaneous injection at the same time. The concentrations of amylase in plasma and in ascites were measured respectively, and the expression of NF-κB in pancreas tissues was determined by immunohistochemistry. Results The levels of amylase in plasm and ascites in SAP group and RSM treatment group increased significantly with the increased expression of NF-κB in pancreas tissue, but it was also found that both the level of amylase and the expression of NF-κB in RSM treatment group were significantly lower compared with those in SAP group, and the survival time of RSM treatment group was longer than SAP group with less pathological injury in the pancreas tissues. Conclusion RSM may be effective for the treatment of pancreatitis by degrading the expression of NF-κB.
目的探讨成人Ⅰ型胆总管囊肿的诊断和治疗。方法回顾性分析1997年1月至2004年7月期间收治的8例成人Ⅰ型胆总管囊肿的临床资料。结果5例行胆总管囊肿全切除、RouxenY肝管空肠吻合术； 2例行囊肿部分切除、RouxenY囊肿空肠吻合术； 1例行囊肿部分切除、 RouxenY肝管空肠吻合术，术中常规行胆道镜检查，无一例手术死亡。8例患者术后平均随访2．8年(1~7年)，未发现胆道恶性肿瘤。1例行囊肿部分切除的患者，在术后出现3次右上腹绞痛，1次急性胆管炎表现，均经支持、对症、抗感染等治疗后好转。 结论 成人Ⅰ型胆总管囊肿的诊断主要依靠B超、逆行胰胆管造影(ERCP)或磁共振胆胰管造影（MRCP）检查，囊肿全切除、RouxenY肝管空肠吻合是安全、有效的手术方式，其疗效比较满意； 囊肿部分切除、RouxenY囊肿空肠吻合术虽疗效不及完整囊肿切除令人满意，但对于在技术上难以作到囊肿完全切除者，部分囊肿切除是明智的选择，建议术中常规胆道镜检查。
目的提高广泛粘连性肠梗阻的治疗效果，预防粘连性肠梗阻复发。方法分析我院1994年1月至2000年5月6年间手术治疗28例广泛粘连性肠梗阻的临床资料。结果手术后无肠梗阻复发，术后8例发生切口感染，无手术死亡及肠瘘发生。结论把握好手术时机是提高粘连性肠梗阻治疗效果的关键，肠排列术是预防粘连性肠梗阻的一个有效方法。
Objective To study the influence of hyperlipemia on rats with acute pancreatits during pregnancy and its mechanism. Methods Seventy two pregnant Sprague-Dawley rats were randomly divided into the test group and the control group， and then they were fed with high fat diet and balanced diet for 16 days separately. Pregnant rats were given intraperitoneal injection with L-arginine for 2 times (one time is 250 mg/100 g, the other is 200 mg/100 g) at an interval of 1 h. The serum triglyceride (TG), serum amylase (AMS), and lipase (LPS) from blood samples were tested just after injection, and 12 h， 18 h， 24 h， 30 h and 48 h after injection respectively, and wet/dry ratio of pancreas were measured. The histopathological score of pancreatic tissue was evaluated based on microscopic changes, and the expression of TNF-α protein was determined by SP immunohistochemical technique. Results After the last injection, the level of TG in the test group was obviously higher than that in the control group in each time (P＜0.05). The peak values of AMS and LPS in the test group appeared at 24， 18 h respectively, while the peaks appeared at 30， 24 h in the control group, respectively, which were significantly lower than those in the test group (P＜0.05). Compared with the control group, the wet/dry ratio of pancreas in the test group increased at 12, 18 and 24 h after injection (P＜0.05); The pathological changes of pancreas in test group was more serious with higher histopathological score at 0, 12, 18 and 24 h (P＜0.05), and expression of the TNF-α protein was higher at 12, 18 and 24 h (P＜0.05), too. Conclusion Hyperlipemia can make L-arginine-induced-acute-pancreatitis during pregnancy earlier occur and lead to more serious injury in pancreas. This study demonstrates that hyperlipemia may be a high risk factor for acute pancreatitis during pregnancy, making a great amount of free fatty acid released from TG and up-regulated the expression of TNF-α.