ObjectiveTo know the background of human gene therapy and the advances in gene therapy study of human hepatocellular carcinoma (HCC). MethodsThe related literatures were reviewed. ResultsAs a substitute measure gene therapy was of great superiority and had got a good result in the clinical study of treatment of human genetic diseases. But it was mainly limited to the study of preclinical phase when it was used to the treatment of tumor. As a carrier of gene transfer， the newly modified retrovirus might have superiority in the study of gene therapy of HCC when compared with other viruses such as adenovirus and adenoassociated virus (AAV). The genes TK,p53 and p16 etc. had been used to the study of therapy of HCC and had some good results.ConclusionThe future of human gene therapy is optimistic, but there is a long way to go when gene therapy is widely used in the clinical study of treatment of HCC.
The model of acut hemorrhagic necrotizing pancreatitis(AHNP)was produced by retrograde injection of 3% sodium taurocholate into the biliopancreatic duct.48rats with AHNP were treated with Tanshin by subcutaneous injection(100mg/100g body weight,q12h,tanshin group),48 rats with AHNP without any treatment as control(control group).The resule showed that in the control group,there were severe hemorrhage,necroses and the lesions of microvascular,the activity of pancreatic enzyme in serum increased significantly(Plt;0.01)at 6h,after 12h the activities of those pancreatic enzymes decreased gradually, the lesions of microvascular and histology were becoming severer.In the Tanshin group,at 24h the lesions of microvascular and histology of the pancreas were modified significantly (Plt;0.05).These results suggest that the lesion of microcirculation play an important role in the later AHNP,and Tanshin has some effects on the AHNP by modifying the microcirculation of the pancreas.
This paper reports twelve patients underwent repeat hepatic resection because of the recurrence of hepatocellular carcinomas after primary resection. The indication of reoperation, selection of incision, difficults encountered in the operation and the treatment after operation are discussed. The authors believe that the second operation is technically more difficult than the first one, some troubles my be happened during the operation and put forward some ways to deal with this situations.
Objective To study the effects of glutaminase (GA) gene blocked by antisense nucleotide on apoptosis of transplanted gastric carcinoma cells in nude mice. Methods The plasmid containing antisense sequence of GA gene was trans-fected into gastric carcinoma cells , then the cells were injected to endermic tissue of nude mice to create animal models of gastric carcinoma. Apoptosis of tumor cells was detected by terminal deoxynucleotidyl transferase2mediated nick end labeling (TUNEL) method. The expression of GA mRNA in tumor tissue was measured by reverse transcription polymerase chain reaction (RT2PCR) technique. Results After the successful transfection of plasmid containing antisense sequence of GA gene into gastric carcinoma cells , the tumor’s growth speed decreased , apoptosis of tumor cells increased , and the expression of GA mRNA also decreased. Conclusion The antisense gene of GA could inhibit the expression of GA gene and significantly increase the apoptosis of gastric carcinoma cells.
目的了解重症急性胰腺炎（SAP）并发症与病死率的关系。方法对19年来我院肝胆外科收治的112例SAP患者进行回顾性总结分析。结果112例中，治愈92例（82.1%），死亡20例（17.9%），发生各种并发症73例（65.2%）。手术治疗73例（65.2%），治愈58例（79.5%），死亡15例（20.5%）。非手术治疗39例（34.8%），治愈34例（87.2%），死亡5例（12.8%）。手术治疗组和非手术治疗组间治愈率和死亡率差异无统计学意义（Pgt;0.05）。与病死率有关的并发症为休克、肺功能不全、胰性脑病和全身感染，其病死率分别为7.1%、6.3%、5.4%和3.6%。SAP并发症综合评分大于7分组和小于7分组比较，病死率差异有显著性意义（P＜0.01）。结论SAP患者是死于其并发症，而并发症中休克、肺功能不全、胰性脑病和全身感染是致死的最主要原因。
Objective To study a simple and practical method of isolation, culture and identification of hepatic oval cells from adult rat. Methods Wistar adult rats were fed by 2-acetaminofluorere （AAF） and were stimulated by partial hepatectomy to activate the proliferation of hepatic oval cells. After operation 12 days, the livers were resected for isolating oval cells. Hepatic tissue was digested by 0.10% collagenase Ⅳ and the obtained heterogeneous liver cells were then isolated and purified by density gradient centrifugation. The expressions of albumin and CK19 mRNA in hepatic oval cells were analyzed by immuno-fluorescence and RT-PCR. Results The survival rate of the newly isolated oval cells was more than 90%. The hepatic stem cells were shown by immuno-fluorescence of stem cell’s antigen c-kit. The expressions of mRNA CK19 and albumin of the oval cell were also detected by PCR. The proliferation activity of the newly isolated oval cells was significantly high and they could be induced to differentiate into both hepatic and bile ductal cells by some growth factors. Conclusion The successful development of the simple and feasible isolation and purification procedure as well as the identification method for hepatic oval cells may provide a fundamental for further studies about bionomics of the hepatic stem cell and the relation between stem cells and hepatic carcinoma.