PDGF-BB在胆道闭锁患儿肝脏中的表达及其与上皮间质转化的相关性研究

目的探讨胆道闭锁(biliary atresia, BA)患儿肝脏中血小板源性生长因子-BB(platelet-derived growth factor, PDGF-BB)、锌指转录因子(Snail 1)和上皮间质转化(epithelial-mesenchymal transition, EMT)的表达情况以及三者之间的关系。方法回顾性分析2018年1月至2019年12月河北医科大学第二医院小儿外科收治的BA患儿25例(BA组)、胆总管囊肿患儿15例(CCC组)以及肝脏肿瘤患儿10例(NL组)的临床资料;收集患儿活检组织, 分别应用免疫组织化学法、实时荧光定量PCR检测PDGF-BB、Snail 1、E钙黏素(E-cadherin)和N钙黏素(N-cadherin)的表达情况, 并对上述指标进行相关性分析。结果 BA组患儿肝脏中PDGF-BB、Snail 1和N-cadherin的mRNA和蛋白表达均显著高于CCC组和NL组, 差异有统计学意义(P<0.05), E-cadherin的mRNA和蛋白表达均显著低于CCC组和NL组, 差异有统计学意义(P<0.05)。其中P...     

Isolation and culture of biliary epithelial cells from bile duct remnants of patients with biliary atresia

Biliary atresia(BA), the most common cause of obstructive jaundice in infancy, has been considered to be a result of progressive destruction of the bile ducts through a necroinflammatory process. Many immunohistochemical studies of BA remnant have been done, but it has not been shown that biliary epithelial cells (BECs) can be cultured from BA remnant. For this study, we obtained bile duct remnants from three patients with biliary atresia (one male, two females) who received Kasais operation from 2002 to 2003. The successive cultivation rate of BECs from explants was 100% (3/3 patients). Culture of BECs on collagen gel was possible up to at least four passages. Under a phase-contrast microscope, primary and passed cultured cells on collagen gel showed a cobblestone-like spread in 2 weeks. The BECs had immunoreactivity to anti-human cytokeratin 7 antibody. In this study, we proved that BECs in the remnants of BA could be cultured, and defined the maturation of biliary epithelial cells of BA by immunocytochemistry with anti-human cytokeratin 7 antibody. In conclusion, BECs in BA remnant are alive, and their proliferation activity can be maintained.     

胆总管未闭锁型胆道闭锁的手术治疗及疗效分析

目的 分析24例胆总管未闭锁型胆道闭锁的临床疗效,旨在指导临床对此类胆道闭锁的手术方式进行选择.方法 回顾分析我院1995至2006年间收治的24例胆总管未闭锁型胆道闭锁患儿手术、术后病理及随访资料.对空肠肝门吻合(A组)与胆囊肝门吻合(B组)在自体肝生存率、黄疸清除率、反流性胆管炎发生率及临床疗效等方面比较分析;并对胆道闭锁胆囊病理标本及正常对照组胆囊进行胶原纤维Van Gieson染色和CD68免疫组化染色,比较其纤维化及炎性反应的差异.结果 平均(51±29.02)个月随访期内,自体肝生存率为66.7%.A组自体肝1年生存率为78.6%,3年生存率78.6%;B组1年生存率为66.7%,3年生存率33.2%,两组3年生存率差异有统计学意义(P＜0.05);A组术后6个月黄疸清除率明显高于B组(86.7%比33.3%,P＜0.05);术后1年胆管炎发生率,A组为60.0%,B组为44.4%(P＞0.05).胆道闭锁患儿胆囊表现为明显纤维化和CD68阳性细胞浸润.结论 胆囊肝门吻合治疗胆总管未闭锁型胆道闭锁的疗效较肝门空肠吻合差,可能与胆囊肝门吻合后残余胆道存在纤维化及炎症细胞浸润有关,对其治疗推荐采用肝门空肠吻合.     

Spontaneous resolution of intrahepatic bile cysts in two patients with biliary atresia after hepatoportoenterostomy

Intrahepatic bile cysts were found in two girls after successful hepatoportoenterostomy for the treatment of extrahepatic biliary atresia, in the first case during a biliary tract infection; one of the cysts persisted after the infection had abated and finally resolved 3 years later. The cyst in the second case induced jaundice and resolved spontaneously after 3 months. Correspondence to: M.-S. Kong     

胆道闭锁胆汁成分与预后的关系研究

目的 探讨胆道闭锁术中胆汁成分变化与预后的关系。方法 本组对62例BA患儿在Kasai术中收集从肝门流出的胆汁,以25例胆总管囊肿患儿术中收集的胆汁作为对照组。采用全自动生化仪检测胆汁中总蛋白(TP)、胆汁酸(TBA)、总胆红素(TBIL)、直接胆红素(DBIL)、总胆固醇(CHO)、谷草转氨酶(AST)、谷丙转氨酶(ALT)、谷氨酰胺转肽酶(GGT)、碱性磷酸酶(ALP)的浓度。术后随访2～16个月,随访内容有黄疸消退时间,术后血生化,术后胆管炎发生情况及术后1年存活情况。结果 BA组胆汁中ALT(210.13±127.75) U/L、GGT(319.03±206.73) U/L、TP(45.86±18.16)g/L、CHO (0.08±(0.04) mmol/L浓度显著高于对照组,ALT:(69.39±44.55) U/L; GGT:(73.22±99.29)U/L; TP:(21.78±15.36)g/L; CHO:(0.02±0.03) mmol/L(P＜0.05); BA组胆汁中TBA( 189.81±107.81) μmol/L和DBIL (61.31±25.53 )μmol/L浓度显著低于对照组TBA:(735.06±199.75)μmol/L; DBIL:(90.43±27.18)μmol/L(P=0.000和P=0.035)。术前肝功能较好组胆汁中ALT(86.24±65.63) U/L、AST(801.64±516.50) U/L和GGT (205.82±112.25) U/L 浓度显著低于术前肝功能较差组,ALT:(244.67±175.69) U/L; AST:(1409.52±927.05) U/L;GGT:(362.05±235.57)U/L(P＜0.05);术前肝功能较好组胆汁中TBA (346.04±279.33)μmol/L 浓度显著高于术前肝功能较差组(192.47±93.55)μmbl/L(P=0.029)。术后3个月黄疸消退者胆汁TBA显著高于未消退者(251.18±131.83)μmol/L比(121.43±80.42) μmol/L,(P=0.007);术后3个月黄疸消退者胆汁DBIL(72.08±32.51 )μmol/L显著高于未消退者(40.22±23.47) μmol/L (P=0.022)。术后1年存活者胆汁TBA浓度较术后1年死亡者显著增高(258.63±105.63)μmol/L比(110.63±46.08) μmol/L,P= 0.015）;术后1年存活者胆汁ALT浓度较术后1年死亡者显著降低(8.72±8.83)U/L比(95.15±44.18)U/L,P=0.048。结论 BA术中胆汁成分与预后有明显的关系,胆汁中TBA较高、DBIL较高的BA患儿术后3个月黄疸消退较好;胆汁中TBA较高、ALT较低的BA患儿术后1年存活情况较好。胆汁TBA和ALT浓度可作为评价BA短期预后和中期预后的可靠指标。     

A case of biliary atresia with cystic dilatation of the extrahepatic bile duct and polysplenia syndrome

A 79-day-old girl presented with jaundice and acholia. Laboratory findings disclosed elevated levels of bilirubin, transaminases, and gamma-glutamyl transferase. A chest X-ray film showed dextrocardia. A computed tomographic scan revealed a cystic mass at the porta hepatis, multiple spleens in the right side of the abdomen, and absence of the inferior vena cava. Under the diagnosis of biliary atresia (BA) (I-cyst) associated with polysplenia syndrome, a hepatic portojejunostomy was performed at 80 days of age. The postoperative course was uneventful, and the jaundice cleared. Although the occurrence of associated anomalies in BA is rare, polysplenia is most commonly seen, and its incidence is reported to be 2% to 10%. Patients with BA and polysplenia usually have a poor prognosis, however, this patient may have a good prognosis due to uneventful recovery from the jaundice. Accepted: 30 August 1999     

Kasai术后肝内胆管囊性扩张的诊治与预后

目的 总结胆管闭锁术后肝内胆管囊性扩张的诊治经验,分析其对患儿预后的影响.方法 1998年6月至2008年3月,对胆管闭锁行葛西手术的患儿进行追踪随访.通过超声检查,发现8例患儿存在肝内胆管扩张.其中3例再行MRI检查,6例再行CT平扫加增强检杳以明确诊断.此8例患儿术后均有不同程度胆管炎症状.5例行PTCD显示肝内胆管囊性扩张.3例患儿行囊肿与空肠胆支再吻合术,2例患儿仪行PTCD置管引流,2例患儿暂未予任何处理.结果 3例经手术治疗的患儿,术后黄疸消退或减轻.仅行PTCD的患儿肝内胆管扩张长期存在.结论 对反复发作的胆管炎应定期行超声检查,尽早发现肝内囊肿;对肝内胆管囊性扩张,无论其影像学分型如何,应根据其具体临床表现进行相应的积极治疗;PTCD无法长期放置,仅是暂时性的治疗,但对手术时寻找囊肿有指示作用,使手术时囊肿的定位相对容易;囊肿的大小、位置与门静脉的关系,压迫的时间、治疗是否及时有效都可影响患儿的预后.     

胆道闭锁异常肝组织蛋白筛查及预后相关性研究

目的 初步鉴定胆道闭锁肝组织异常蛋白表达情况,寻找与胆道闭锁发病和预后有关的差异表达蛋白.方法 用固相pH梯度双向凝胶电泳分离胆道闭锁和正常肝脏组织总蛋白,银染显色,Melanie3.02 2D图像分析软件分析,对部分蛋白质点用基质辅助激光解析电离飞行时间质谱(MALDI-TOF-MS)进行鉴定,查询数据库鉴定差异蛋白质.结果 获得了背景清晰、分辨率和重复性较好的双向凝胶电泳图谱,蛋白质匹配率达800%以上.胆道闭锁和正常组比较发现表达量变化达2倍以上的蛋白点有33个,表达量变化达4倍以上者有8个.胆道闭锁预后较好者和预后不好者比较发现表达量变化达4倍以上的蛋白点有22个,表达量变化达5倍以上者有18个.质谱鉴定其中15个点,其中7个点鉴定成功,分别是Viperin、SARM1、GPC3、APC、THUM2、MIA3和KIAA0649.结论 本研究成功鉴定出部分与胆道闭锁发病和预后有关的蛋白质,为进一步研究胆道闭锁致病机制和提高手术预后提供了新的研究方向,有进一步研究的价值.

Abstract：

Objective To investigate the expression of hepatic protein in patients with biliary atresia(BA), and find the relationship between the significant protein and prognosis of biliary atresia.Methods Immobile pH gradients isoelectric focusing was used as 1D, and vertical SDS-PAGE as 2D.Sliver staining, Melanie3. 02 2D analysis software, matrix assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF-MS) and NCBInr database searching were used to separate and identify the proteome from liver in patients with biliary atresia. Results Satisfactory 2DE patterns were obtained. Thirty-three protein spots were remarkably changed in patients with biliary atresia compared with the control group. Twenty-two protein spots were significantly difference between BA patients with good prognosis and BA patients with poor prognosis. Fifteen protein spots were referred to mass spectrometry, and 7 protein spots were identified, including Viperin, SARM1, GPC3, APC,THUM2, MIA3 and KIAA0649. Conclusions In this study, proteins related to the prognosis and pathogenesis of biliary atresia were identified, which may contribute to prognosis and pathogenesis of biliary atresia.     

Cell cultures of bile duct epithelium and the pathogenesis of biliary atresia

The pathogenesis of biliary atresia is unknown. The authors describe a technique for culturing extrahepatic bile duct epithelial cells of human and bovine origin in monolayer cell cultures. Light-, electron microscopy and immunohistological studies prove the epithelial nature of the cultured cells.Inoculation of the cells with reovirus 3 showed no destruction; adenovirus 6, herpes simplex and polio virus 1 and 2 destroyed the cells within 24 h.The cells produce a growth factor maintaining the integrity of the cells, even in the absence of serum.     

胆道闭锁术中胆汁流量及胆汁成分的观察分析

目的 探讨胆道闭锁术中胆汁流量及成分变化与预后的关系.方法 本组对27例BA患儿行Kasai手术时,采用5 ml气体采样管收集和测量从肝门流出的胆汁.以17例胆总管囊肿患儿术中收集的胆汁作为对照组,其中测胆汁流量者7例.采用全自动生化仪检测胆汁中磷脂、总蛋白(TP)、胆汁酸(TBA)、总胆红素(TBIL)、直接胆红素(DBIL)、总胆固醇(TC)、谷草转氨酶(AST)、谷丙转氨酶(ALT)、谷氨酰胺转肽酶(GGT)、碱性磷酸酶(ALP)的浓度.术后随访1～6个月,随访内容有黄疸消退时间、术后血生化、术后胆管炎发生情况.结果 BA组胆汁流量显著低于对照组(P<0.05).手术日龄>60 d的BA患儿及术前血ALT>150 U/L的BA患儿术中胆汁流量均显著低于对照组(P<0.05).术中胆汁流量≥0.19 ml/min的BA患儿术后3个月退黄率显著高于术中胆汁流量<0.19 ml/min的BA患儿(P<0.05).BA组的胆汁磷脂、TBA及DBIL浓度均显著低于对照组(P<0.05);BA组的胆汁ALT浓度显著高于对照组(P<0.01).术后3个月黄疸消除者的胆汁AST及TC浓度均显著低于未消除者(P<0.05).结论 BA术中胆汁流量与预后有明显的关系,患儿术中胆汁流量越好,术后的预后越好,提示术中胆汁流量可以更早地预测患儿的远期效果.BA胆汁成分的变化说明BA患儿的肝功能较差,胆汁中磷脂、TBA和DBIL浓度较低可能是肝脏分泌功能较差的表现.胆汁中的AST和TC浓度与预后有关,胆汁AST和TC浓度较低的BA患儿术后预后较好,可能是由于肝功能较好和胆汁粘度较低利于引流所致.     

胆汁酸在胆道闭锁疾病中的研究进展

胆道闭锁(biliary atresia)是以进行性肝内外胆管纤维化为特征的疾病,是导致婴幼儿终末期肝病的重要原因,目前病因及发病机制尚不明确.研究表明,胆汁酸可以用于胆道闭锁早期筛查、预后评估及胆管炎诊断.本文对近些年胆汁酸在胆道闭锁中的相关研究进展进行综述.