目的 总结分析原发性甲状旁腺机能亢进症再手术的原因。方法对我院1980年至1999年收治的8例原发性甲状旁腺机能亢进症术后因症状持续存在或复发而行再手术的病例，并结合有关文献对其原因进行了总结分析。结果 首次手术失败主要原因： ①多个腺体发生病变(4例)； ②病变腺体异位(5例)； ③医生经验不足(5例)； ④冰冻切片诊断错误(2例)； ⑤残留腺体增生(1例)； ⑥存在第5个或以上甲状旁腺腺瘤； ⑦甲状旁腺癌复发。结论 结合术前定位检查，并熟悉掌握甲状旁腺病变正常和异常的位置，可以提高原发性甲状旁腺机能亢进症首次探查术的成功率。
ObjectiveTo retrospective analysis the research progress of the acute-on-chronic liver failure (ACLF), and provide some useful advice for the early diagnosis, evaluation, and treatments of ACLF. MethodsThe literatures on ACLF which published in domestic and overseas for these years were reviewed. ResultsACLF, which is an acute deterioration of liver function results from precipitating events in patients with chronic liver disease. As an independent clinical entity and different from acute liver failure (ALF), sub-acute liver failure (SALF), and chronic liver failure (CLF). For the high short-term mortality and seldom good treatment measures, attached much people's attention. ConclusionThe research of ACLF makes great advance but still exits different in some field between the East and the West. Search dangerous etiology earlier, combine with reality and early effective treatments can develop total survival rate of ACLF.
Cholangiocarcinoma; Vascular endothelial growth factor; c-myc gene
目的探讨肝结核病的临床诊断及误诊原因。方法对我院普外科1996~2001年收治的8例肝结核病患者的临床资料进行回顾性分析。结果本组病例中发热5例，A/G倒置6例，甲胎蛋白均阴性； OT或PPD皮试5例，4例阴性，1例可疑； CT发现腹主动脉旁淋巴结肿大3例。入院诊断肝结核1例，原发性肝癌或转移性肝癌3例，肝血管瘤1例，肝脓肿2例，肝包虫病1例。剖腹探查、肝部分切除、活检6例，肝脓肿引流2例，术中冰冻切片检查证实均为结核。结论对于肝功能大致正常、甲胎蛋白阴性的中、青年患者，如CT或B超发现肝区有多发性占位病变并伴午后发热、A/G倒置、有肝外结核病史或表现者，应高度怀疑本病。经皮肝穿刺或腹腔镜下行肝活检是确诊本病的首选方式； 如无法与肝恶性肿瘤鉴别，应尽早行剖腹探查术，术中常规作冰冻检查，术后行正规抗痨治疗，可治愈该病。
Objective To study the mechanism of immune hyporesponsiveness of allograft rejection induced by transfusion nonpufsed allopeptide syngeneic immature dendritic cell (imDC) generated from recipient bone marrow progenitors and to explore a possible strategy for liver allograft protection in clinic. Methods Forty experimental rats were randomly divided into 4 group: control group, cyclosporine A (CsA) group, mature DC (mDC) group and imDC group. In control group, Wistar rats only received liver transplantation. In CsA group, Wistar rats underwent liver transplantation plus CsA treatment 〔10 mg/（kg·d)〕. In mDC group, recipient-derived mDC 1×106 were infused intravenously through the penile vein to Wistar rats. In imDC group, ImDC with the dose of 1×106 were injected into Wistar rats via the dorsum vein of penile. In each group, five recipients were killed on the 10th day after transplantation, the other five recipients were left to observe survival time. The levels of ALT, AST, TBIL, IL-2, IFN-γ, IL-4 and IL-10 were detected. The acute rejection and the expression of FasL/Fas in the grafts were detected by HE and immunohistochemical staining. Western blot was used to detect Scurfin protein expression of CD4+ CD25+ T cells. Results The median survival time of the liver allografts in CsA group and imDC group were significantly longer than that in control group and mDC group ( P ＜ 0.05). The levels of ALT and TBIL in control group and mDC group were significantly higher than those in CsA group and imDC group ( P ＜ 0.05). Compared with CsA group and imDC group, the levels of IL-2 and IFN-γ were higher but the levels of IL-4 and IL-10 were lower in control group and mDC group ( P ＜ 0.01). Slightly or no rejection reaction was found in CsA group and imDC group ( P ＜ 0.05). The Scurfin protein expressions of CD4+ CD25+ T cells of imDC group were significantly higher than those of other three groups. Conclusion Application of nonpufsed allopeptide syngeneic recipient-derived imDC is an effective way to induce immune hyporesponsiveness by blocking indirect recognition in rat liver transplantation model. Survival span is significantly prolonged by its protective effect. The mechanism of immune hyporesponsiveness induced by imDC transfusion might be involved in some aspects: T cell apoptosis, immune deviation of Thl/Th2 cytokine net and inhibition of T lymphocytes responsiveness by regulatory T cells.
ObjectiveTo investigate target gene therapy for hepatocellular carcinoma (HCC). MethodsHerpes simplex virus thymidine kinase (HSVTK) gene was inserted into the gene of AFP enhancer/ALB promoter with adenoassociated virus (AAV) plasmid (WAV2) as a carrier, and a hybrid plasmid pWAV2/AFPALB/HYTK was constructed. Besides, plasmid pEGFP1/AFPALB was also constructed. Two kinds of plasmids were transferred into AFP positive cells HepG2 and AFP negative cells 7721, SPC and 7901.ResultsIt was found that enhance green fluorescence protein could only be seen in AFP positive cells HepG2. 710 bp DNA was amplified only in AFP positive HepG2 cells.ConclusionPlasmid pWAV2/AFPALB/HYTK for HCC demonstrates specificity in vitro.
目的总结原发性甲状腺鳞癌的诊治经验。方法回顾分析我院1996～2001年收治的12例原发性甲状腺鳞癌患者的临床资料。结果单纯性鳞癌4例，合并甲状腺其它疾病8例。主要临床表现为颈部包块和声嘶。单纯性鳞癌免疫组化甲状腺球蛋白染色阳性3例，阴性1例。12例患者中10例行姑息性切除者于术后1年内死亡，2例行根治性切除者存活时间超过3年。结论原发性甲状腺鳞癌呈高度恶性，可与甲状腺其它良、恶性疾病并存； 要重视对该病的诊断和鉴别诊断，免疫组化甲状腺球蛋白染色可提高确诊率； 根治性手术切除加综合治疗是提高其生存率的关键。