骨髓源性肝干细胞的筛选、扩增和分化

Objective To explore the feasibility of direct separation, selective proliferation and differentiation of BDLSC from hone marrow cells with culture systems containing cholestatic serum in vitro.Methods Whole bone marrow cells of rats cultured in routine medium were replaced with con-ditioning selection media containing eholestatic sera of different concentrations after they attached to the plates.The optimal concentration of cholestatic serum was determined according to the outcome of the selected cultures.Then the selected BDLSC were induced to proliferating culture system and dif-ferentiating culture system.Each passage of the proliferated stem cells was subjected to flow cytome-try for detection of stem cell markers.The morphology and phenotypie markers of BDLSC were char-acterized using immunohistochemistry, RT-PCR and electron microscopy.The metabolic functions of differentiated cells were also determined by glycogen staining and urea assay.Results The 50 ml/L eholestatie serum was the optimal concentration for the selection of BDLSC at which BDLSC could sur-vive while the other populations of the bone marrow cells could not.The purified BDLSC could prolif-erate for 6 passages and maintained stable markers in our proliferating system.When the culture sys-tem changed to differentiating system, hepatocyte-like colony-forming units (HCFU) were formed.HCFU expressed markers of embryonic hepatoeytes (AFP, albumin and cytokeratin 8/18), biliary cells (cytokeratin 19), hepatocyte functional proteins (transthyretin and eytoehrome P450-2b1), and hepatocyte nuclear factors (HNF-1α and HNF-3β).They also had glycogen storage and urea synthesis functions, two of the critical features of hepatocytes.Conclusion BDLSC can be selected directly from whole bone marrow cells and pure BDLSC can also proliferate for 6 passages.The differentiated cells have hepatocyte-like phenotype and function.BDLSC will he a new way to provide a readily avail-able alternate source of cells for clinical hepatocyte therapy.     

胰十二指肠切除术并发症的防治(附34例临床分析)

本组34例胰十二指肠切除术(PDR)后发生严重并发症12例(35.3％),依次是上消化道出血、胆瘘、胰瘘、腹腔内出血以及保留幽门的十二指肠空肠吻合口瘘。本文讨论如何预防和处理PDR的并发症和减少死亡率。     

亲属活体供肝移植一例

我院于 2 0 0 2年 6月 4日施行了亲属活体供肝移植 1例。供者为男性 ,6 4岁 ,体重 5 0kg ,系受者的亲父 ,无肝炎病史 ,术前各项检查均在正常范围 ,血型为O型。受者为男性 ,30岁 ,体重 5 5kg ,因急性暴发性肝功能衰竭入我院传染科。入院时神志模糊、烦躁 ,有明显扑翼样振颤 ,肝浊音界缩小。每日予以护肝治疗和混合型人工肝支持治疗。血型为O型。供者术前先行肝动脉造影 ,以了解肝动脉情况。全身麻醉 ,取右肋缘下切口进腹 ,先经胆囊管行术中胆道造影。游离肝脏 ,解剖第一、二、三肝门 ,分别游离出肝右动脉、门静脉右支、胆管右支以及肝右静脉…     

胆总管通畅管的研制并临床应用

目的 评价自我研制的胆总管通畅管在腹腔镜胆总管切开取石一期缝合术中应用的安全性、适应证、有效性.方法 对术中应用自我研制的胆总管通畅管进行手术的胆总管切开取石一期缝合的37例胆总管结石患者(合并或不合并胆囊结石)总结分析其安全性、有效性、适应证及并发症.结果 所有患者顺利完成手术、无安全事故发生.术后无胆漏、胆道残石、...     

骨髓源性肝干细胞的筛选、扩增和分化

Objective To explore the feasibility of direct separation, selective proliferation and differentiation of BDLSC from hone marrow cells with culture systems containing cholestatic serum in vitro.Methods Whole bone marrow cells of rats cultured in routine medium were replaced with con-ditioning selection media containing eholestatic sera of different concentrations after they attached to the plates.The optimal concentration of cholestatic serum was determined according to the outcome of the selected cultures.Then the selected BDLSC were induced to proliferating culture system and dif-ferentiating culture system.Each passage of the proliferated stem cells was subjected to flow cytome-try for detection of stem cell markers.The morphology and phenotypie markers of BDLSC were char-acterized using immunohistochemistry, RT-PCR and electron microscopy.The metabolic functions of differentiated cells were also determined by glycogen staining and urea assay.Results The 50 ml/L eholestatie serum was the optimal concentration for the selection of BDLSC at which BDLSC could sur-vive while the other populations of the bone marrow cells could not.The purified BDLSC could prolif-erate for 6 passages and maintained stable markers in our proliferating system.When the culture sys-tem changed to differentiating system, hepatocyte-like colony-forming units (HCFU) were formed.HCFU expressed markers of embryonic hepatoeytes (AFP, albumin and cytokeratin 8/18), biliary cells (cytokeratin 19), hepatocyte functional proteins (transthyretin and eytoehrome P450-2b1), and hepatocyte nuclear factors (HNF-1α and HNF-3β).They also had glycogen storage and urea synthesis functions, two of the critical features of hepatocytes.Conclusion BDLSC can be selected directly from whole bone marrow cells and pure BDLSC can also proliferate for 6 passages.The differentiated cells have hepatocyte-like phenotype and function.BDLSC will he a new way to provide a readily avail-able alternate source of cells for clinical hepatocyte therapy.     

IV型肝门部胆管癌单侧塑料内支架置入治疗的前瞻性研究

目的：探讨IV型肝门部胆管癌患者经ERCP置入单侧塑料内支架进行减黄治疗的效果。
方法：对4年间42例不能切除的IV型肝门部胆管癌患者行单侧塑料内支架置入术。均经ERCP操作成功置入单侧塑料内支架引流,观察30 d内的早期操作相关并发症、病死率以及超过30 d的远期效果、生存率等。
结果：42例患者均成功引流,85.7%(36/42)患者黄疸缓解（胆红素水平<51.3 μmol/L）,平均总胆红素水平从（332.3±163.4）μmol/L降至（30.6±18.5）μmol/L。其中61.9%（26/42）的患者胆红素水平降到正常（<17.1 μmol/L）。早期并发症包括EST所致的乳头岀血（9.5%）及操作所致的胆管炎（23.8%）。无早期死亡患者。所有病例均需要定期换管。首次中位换管时间为65 d;中位内支架引流时间为5.15个月;中位生存时间为6.5个月。上述3指标左右侧组差异无统计学意义。
结论：置入单侧塑料内支架对不可切除的肝门部胆管癌患者是安全、可行的,且可以获得较长时间的充分引流,可改善患者的生存质量和生存时间。     

腹腔镜与开腹肝癌切除对机体免疫功能影响的对比研究

[目的]探讨腹腔镜与开腹肝癌切除对患者免疫功能的影响及长期疗效.[方法]25例原发性肝癌随机分成2两组,分别采取腹腔镜或开腹切除肝癌治疗,对比分析对患者术后免疫功能的影响.[结果]2组患者手术前机体免疫功能对比无差异,两组在手术后1 d、7 d、1月的免疫功能对比有差异,腹腔镜组对患者的机体免疫功能打击小.[结论]腹腔镜切除肝癌对患者的免疫功能打击小,值得在有条件的医院推广.     

自发性胃十二指肠动脉瘤破裂出血一例

目的 报道1例罕见的胃十二指肠动脉瘤自发性破裂出血,提高临床医师对该病的认识。方法 全腹CTA（256层iCT）及剖腹探查。结果 经全腹CTA、术中探查确诊为胃十二指肠动脉瘤破裂出血。结论 胃十二指肠动脉瘤自发性破裂出血死亡率极高,一经确诊应迅速得到确切治疗,手术止血效果好,并可清除腹腔积血以助术后恢复。     

手助腹腔镜肝部分切除术治疗原发性肝癌

目的 探讨手助腹腔镜肝部分切除术治疗原发性肝癌的方法和应用价值。方法 经临床筛选的第Ⅱ、Ⅲ、Ⅵ段或边缘型的原发性肝癌6例,在腹腔镜辅助下,应用手助器、超声刀、切割器等特殊器械进行腹腔镜下肝癌切除术。结果 6例患者均成功完成手术,包括肝Ⅱ、Ⅲ段切除,Ⅵ段切除及非规则性肝段切除术,手术时间80~130 min,术后住院6~9 d,手术出血150~700 ml,无中转开腹手术,无并发症。术后随访6~15个月,2例分别于手术后3和4个月肝内复发,其余4例随访至今无复发。结论 在经过临床选择的病例中,手助腹腔镜下作肝部分切除术治疗原发性肝癌是安全、可行的手术方式。     

选择性肝血流阻断肝切除术的应用

目的探讨选择性肝血流阻断肝切除术的安全性和可行性。方法回顾性分析我院2002年3月至2006年10月行肝切除术65例,分为选择性肝血流阻断组（HVC,n=28）和第一肝门阻断组（Pringle,n=37）;比较两组病人术中出血量、手术时间、术后肝功能的恢复、术后两天的平均引流量以及术后并发症。结果两组病人术中出血量和手术时间均无显著性差异;HVC组术后3天和7天的血清谷丙转氨酶明显低于Pringle组,术后两天的平均引流量HVC组明显少于Pringle组;Pringle组有两例出现肝功能衰竭,其中1例死亡,HVC组没有肝功能衰竭及死亡病例。结论选择性肝血流阻断肝切除术安全、可行,较第一肝门阻断更有利于肝功能的恢复,减少肝功能衰竭的发生。