|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 系统综述和荟萃分析优先报告的条目:PRISMA声明显示文摘为了提高系统综述和荟萃分析文章报告的质量,2009年由国际著名专家组成的系统综述和荟萃分析优先报告的条目(Preferred Reporting Items for Systematic Reviews and Meta-Analyses,PRISMA)小组在国际重要医学期刊包括《英国医学杂志》、《临床流行病学杂志》、《内科学年鉴》和美国《公共科学图书馆医学杂志》等同步发表了《系统综述与荟萃分析优先报告条目:PRISMA声明》。该标准的制定对于改进和提高系统综述和荟萃分析的报告质量将起到重要作用。该声明较以往制定的《随机对照试验荟萃分析报告质量》(Quality of Reporting of Meta-Analyses),即《QUOROM声明》更加全面、完善。由于近年采国内外对系统综述的高度重视,发表的文章数量也越来越多,因此,有必要规范报告的标准,提高报告的质量。这份声明对系统综述和荟萃分析类文章报告的27个条目及流程图进行了定义和介绍,对相关条目进行了详细的解释和说明。及时向国内读者和临床试验研究人员介绍该声明具有重要的现实意义和学术价值。北京中医药大学循证医学中心刘建平等在第一时间内翻译了该声明,本刊希望通过介绍中文版《系统综述与荟萃分析优先报告的条目:PRISMA声明》,以进一步提高国内系统综述文章撰写和报告的质量,同时也有助于改进研究设计的方法学质量。本文的英文原文'Preferred reporring items for systematic reviews and meta-analyses:the PRISMAstatement'发表于PLoS Med.2009;6(7):e1000097.doi:10.1371/journal.pmed.1000097。该文中文版本由北京中医药大学循证医学中心李迅、曹卉娟翻译,刘建平审校(Tel:010-64286760;E-mail:jianping_l@hotmail.com)。中文译文的翻译出版由国家重点基础研究发展计划(973计划)项目资助(No.200608504602)。 | David Moher Alessandro Liberati Jennifer Tetzlaff Douglas G. Altman PRISMA Group | 2009 | 中西医结合学报2009，7，9： | 156 |
| 2 | Hepatic echinococcosis:Clinical and therapeutic aspects显示文摘Echinococcosis or hydatid disease(HD)is a zoonosis caused by the larval stages of taeniid cestodes belonging to the genus Echinococcus.Hepatic echinococcosis is a life-threatening disease,mainly differentiated into alveolar and cystic forms,associated with Echinoccus multilocularis(E.multilocularis)and Echinococcus granulosus(E.granulosus)infection,respectively.Cystic echinococcosis(CE)has a worldwide distribution,while hepatic alveolar echinococcosis(AE)is endemic in the Northern hemisphere,including North America and several Asian and European countries,like France,Germany and Austria.E.granulosus young cysts are spherical,unilocular vesicles,consisting of an internal germinal layer and an outer acellular layer.Cyst expan-sion is associated with a host immune reaction and the subsequent development of a fibrous layer,called the pericyst;old cysts typically present internal septations and daughter cysts.E.multilocularis has a tumorlike,infiltrative behavior,which is responsible for tissue destruction and finally for liver failure.The liver is the main site of HD involvement,for both alveolar and cystic hydatidosis.HD is usually asymptomatic for a long period of time,because cyst growth is commonly slow;the most frequent symptoms are fatigue and abdominal pain.Patients may also present jaundice,hepatomegaly or anaphylaxis,due to cyst leakage or rupture.HD diagnosis is usually accomplished with the combined use of ultrasonography and immunodiagnosis;furthermore,the improvement of surgical techniques,the introduction of minimally invasive treatments[such as puncture,aspiration,injection,re-aspiration(PAIR)]and more effective drugs(such as benzoimidazoles)have deeply changed life expectancy and quality of life of patients with HD.The aim of this article is to provide an up-todate review of biological,diagnostic,clinical and therapeutic aspects of hepatic echinococcosis. | Giuseppe Nunnari Marilia R Pinzone Salvatore Gruttadauria Benedetto M Celesia Giordano Madeddu Giulia Malaguarnera Piero Pavone Alessandro Cappellani Bruno Cacopardo | 2012 | World Journal of Gastroenterology2012，18，13： | 72 |
| 3 | Diagnosis and management of choledocholithiasis in the golden age of imaging, endoscopy and laparoscopy显示文摘Biliary lithiasis is an endemic condition in both Western and Eastern countries, in some studies affecting 20% of the general population. In up to 20% of cases, gallbladder stones are associated with common bile duct stones(CBDS), which are asymptomatic in up to one half of cases. Despite the wide variety of examinations and techniques available nowadays, two main open issues remain without a clear answer: how to cost-effectively diagnose CBDS and, when they are finally found, how to deal with them. CBDS diagnosis and management has radically changed over the last 30 years, following the dramatic diffusion of imaging, including endoscopic ultrasound(EUS) and magnetic resonance cholangiography(MRC), endoscopy and laparoscopy. Since accuracy, invasiveness, potential therapeutic use and costeffectiveness of imaging techniques used to identifyCBDS increase together in a parallel way, the concept of 'risk of carrying CBDS' has become pivotal to identifying the most appropriate management of a specific patient in order to avoid the risk of 'under-studying' by poor diagnostic work up or 'over-studying' by excessively invasive examinations. The risk of carrying CBDS is deduced by symptoms, liver/pancreas serology and ultrasound. 'Low risk' patients do not require further examination before laparoscopic cholecystectomy. Two main 'philosophical approaches' face each other for patients with an 'intermediate to high risk' of carrying CBDS: on one hand, the 'laparoscopy-first' approach, which mainly relies on intraoperative cholangiography for diagnosis and laparoscopic common bile duct exploration for treatment, and, on the other hand, the 'endoscopy-first' attitude, variously referring to MRC, EUS and/or endoscopic retrograde cholangiography for diagnosis and endoscopic sphincterotomy for management. Concerning CBDS diagnosis, intraoperative cholangiography, EUS and MRC are reported to have similar results. Regarding management, the recent literature seems to show better short and long term outcome of surgery in terms of retained stones and need for further procedures. Nevertheless, open surgery is invasive, whereas the laparoscopic common bile duct clearance is time consuming, technically demanding and involves dedicated instruments. Thus, although no consensus has been achieved and CBDS management seems more conditioned by the availability of instrumentation, personnel and skills than cost-effectiveness, endoscopic treatment is largely preferred worldwide. | Renato Costi Alessandro Gnocchi Francesco Di Mario Leopoldo Sarli | 2014 | World Journal of Gastroenterology2014，20，37： | 48 |
| 4 | Systematic review of surgical resection vs radiofrequency ablation for hepatocellular carcinoma显示文摘Hepatocellular carcinoma (HCC) represents one of the most common neoplasms worldwide. Surgical resection and local ablative therapies represent the most frequent first lines therapies adopted when liver transplantation can not be offered or is not immediately accessible. Hepatic resection (HR) is currently considered the most curative strategy, but in the last decade local ablative therapies have started to obtain satisfactory results in term of efficacy and, of them, radiofrequency ablation (RFA) is considered the reference standard. An extensive literature review, from the year 2000, was performed, focusing on results coming from studies that directly compared HR and RFA. Qualities of the studies, characteristics of patients included, and patient survival and recurrence rates were analyzed. Except for three randomized controlled trials (RCT), most studies are affected by uncertain methodological approaches since surgical and ablated patients represent different populations as regards clinical and tumor features that are known to affect prognosis. Unfortunately, even the available RCTs report conflicting results. Until further evidences become available, it seems reasonable to offer RFA to very small HCC (< 2 cm) with no technical contraindications, since in this instance complete necrosis is most likely to be achieved. In larger nodules, namely > 2 cm and especially if > 3 cm, and/or in tumor locations in which ablation is not expected to be effective or safe, surgical removal is to be preferred. | Alessandro Cucchetti Fabio Piscaglia Matteo Cescon Giorgio Ercolani Antonio Daniele Pinna | 2013 | World Journal of Gastroenterology2013，19，26： | 40 |
| 5 | Incidental gallbladder cancer during laparoscopic cholecystectomy:Managing an unexpected finding显示文摘AIM:To evaluate the impact of incidental gallbladder cancer on surgical experience.METHODS:Between 1998 and 2008 all cases of cholecystectomy at two divisions of general surgery,one university based and one at a public hospital,were retrospectively reviewed.Gallbladder pathology was diagnosed by history,physical examination,and laboratory and imaging studies [ultrasonography and computed tomography(CT)].Patients with gallbladder cancer(GBC) were further analyzed for demographic data,and type of operation,surgical morbidity and mortality,histopathological classification,and survival.Incidental GBC was compared with suspected or preoperatively diagnosed GBC.The primary endpoint was diseasefree survival(DFS).The secondary endpoint was the difference in DFS between patients previously treated with laparoscopic cholecystectomy and those who had oncological resection as first intervention.RESULTS:Nineteen patients(11 women and eight men) were found to have GBC.The male to female ratio was 1:1.4 and the mean age was 68 years(range:45-82 years).Preoperative diagnosis was made in 10 cases,and eight were diagnosed postoperatively.One was suspected intraoperatively and confirmed by frozen sections.The ratio between incidental and nonincidental cases was 9/19.The tumor node metastasis stage was:pTis(1),pT1a(2),pT1b(4),pT2(6),pT3(4),pT4(2);five cases with stageⅠa(T1 a-b);two with stageⅠb(T2 N0);one with stage Ⅱa(T3 N0);six with stage Ⅱb(T1-T3 N1);two with stage Ⅲ(T4 Nx Nx);and one with stage Ⅳ(Tx Nx Mx).Eighty-eight percent of the incidental cases were discovered at an early stage(≤Ⅱ).Preoperative diagnosis of the 19 patients with GBC was:GBC with liver invasion diagnosed by preoperative CT(nine cases),gallbladder abscess perforated into hepatic parenchyma and involving the transversal mesocolon and hepatic hilum(one case),porcelain gallbladder(one case),gallbladder adenoma(one case),and chronic cholelithiasis(eight cases).Every case,except one,with a T1b or more advanced invasion underwent Ⅳb + Ⅴ wedge liver resection and pericholedochic/hepatoduodenal lymphadenectomy.One patient with stage T1b GBC refused further surgery.Cases with Tis and T1a involvement were treated with cholecystectomy alone.One incidental case was diagnosed by intraoperative frozen section and treated with cholecystectomy alone.Six of the nine patients with incidental diagnosis reached 5-year DFS.One patient reached 38 mo survival despite a port-site recurrence 2 years after original surgery.Cases with non incidental diagnosis were more locally advanced and only two patients experienced 5-year DFS.CONCLUSION:Laparoscopic cholecystectomy does not affect survival if implemented properly.Reoperation should have two objectives:R0 resection and clearance of the lymph nodes. | Andrea Cavallaro Gaetano Piccolo Vincenzo Panebianco Emanuele Lo Menzo Massimiliano Berretta Antonio Zanghì Maria Di Vita Alessandro Cappellani | 2012 | World Journal of Gastroenterology2012，18，30： | 33 |
| 6 | 三种南方典型水稻土长期试验下有机碳积累机制研究 Ⅲ.两种水稻土颗粒有机质结构特征的变化显示文摘采用固体交叉极化魔角自旋^(13)C核磁共振(CPMAS^(13)C-NMR)波谱技术对长期不同施肥处理下红壤性水稻土和太湖地区黄泥土本体土壤以及水稳性团聚体中颗粒有机质(POM)的化学结构特征进行了研究。结果表明,不同施肥处理下本体土壤和不同粒径水稳性团聚体中POM的结构组成相似,主要由烷氧C、烷基C和芳香C组成,其中以烷氧C含量最高。施肥改变了本体土壤POM中各类C原子的相对百分含量,有机肥以及化肥配施有机肥条件下烷氧C含量明显降低,芳香C和酚基C含量有不同程度的增加,表明POM的稳定性增强;单施化肥下烷氧C含量最高,而烷基C、芳香C和芳香度均最低,POM的稳定性减弱,不利于POM的积累。施肥改变了黄泥土不同粒径水稳性团聚体中POM各类C原子的相对百分含量,从而使得不同粒径中POM对其团聚体的稳定性作用发生变化;而红壤性水稻土不同粒径水稳性团聚体POM各类C原子的相对百分含量并未明显受到施肥措施的影响。 | 周萍 Alessandro Piccolo 潘根兴 Daniela Smejkalova | 2009 | 土壤学报2009，46，3： | 29 |
| 7 | Prognostic factors for hepatocellular carcinoma recurrence显示文摘The recurrence of hepatocellular carcinoma,the sixth most common neoplasm and the third leading cause of cancer-related mortality worldwide,represents an important clinical problem,since it may occur after both surgical and medical treatment.The recurrence rate involves 2 phases:an early phase and a late phase.The early phase usually occurs within 2 years after resection;it is mainly related to local invasion and intrahepatic metastases and,therefore,to the intrinsic biology of the tumor.On the other hand,the late phase occurs more than 2 years after surgery and is mainly related to de novo tumor formation as a consequence of the carcinogenic cirrhotic environment.Since recent studies have reported that early and late recurrences may have different risk factors,it is clinically important to recognize these factors in the individual patient as soon as possible.The aim of this review was,therefore,to identify predicting factors for the recurrence of hepatocellularcarcinoma,by means of invasive and non-invasive methods,according to the different therapeutic strategies available.In particular the role of emerging techniques(e.g.,transient elastography)and biological features of hepatocellular carcinoma in predicting recurrence have been discussed.In particular,invasive methods were differentiated from non-invasive ones for research purposes,taking into consideration the emerging role of the genetic signature of hepatocellular carcinoma in order to better allocate treatment strategies and surveillance follow-up in patients with this type of tumor. | Antonio Colecchia Ramona Schiumerini Alessandro Cucchetti Matteo Cescon Martina Taddia Giovanni Marasco Davide Festi | 2014 | World Journal of Gastroenterology2014，20，20： | 28 |
| 8 | Interleukin-6 and its soluble receptor in patients with liver cirrhosis and hepatocellular carcinoma显示文摘瞄准:为了评估免疫, interleukin-6 ( IL-6 )和从有肝细胞癌( HCC )和浆液的病人的肿瘤组织标本上的 IL-6 受体( IL-6R )的组织化学的本地化与 HCC 以及肝肝硬化( LC )在一组病人 IL-6 和 sIL-6R 铺平在一组有独自一个的 LC 并且在一个控制组的病人。方法:三组题目被学习:组我(n = 83 ) 受不了 HCC 和 LC,组 II (n = 72 ) 受不了独自一个的 LC 和组 III (n = 42 ) 同样健康的控制。所有病人有丙肝病毒感染。浆液 IL-6 和 IL-6R 层次用一个商业地可得到的 ELISA 工具包被决定。Immunohistochemistry 对 IL-6 和 IL-6R 用 streptavidin-biotin 建筑群和兔子 polyclonal 抗体被执行。结果:Immunohistochemistry 分析显示出媒介到强壮细胞质并且为 IL-6 和 IL-6R 的膜反应分别地在 HCC 的至少 40% 盒子,而肝肝硬化病人和控制为 IL-6 是否定的或为 IL-6R 显示出很温和、焦点的像点的细胞质的反应。在 HCC 组的浆液 IL-6 层次比在 LC 和控制组的那些显著地高(P <
0.0001 ) 。在在 3 个组之中的 sIL-6R 集中没有有效差量。当有 HCC 的病人根据 Okuda 的分类被划分成组时, IL-6 和 sIL-6R 水平的重要浆液增加从舞台被观察我上演 III (P <
0.02, P <
0.0005 ) 。当 HCC 和 LC 病人根据孩子呸被划分成肝硬化严厉的 3 个班时,在 HCC 病人的价值比在为各相应的班的 LC 病人的那些显著地高(P <
0.01 ).CONCLUSION:在 HCC 病人的 IL-6 浆液层次比在 LC 病人和控制的那些高,建议由肿瘤的房间的这 cytokine 的增加的生产。sIL-6R 价值在所有组是类似的,仅仅在阶段 III HCC 病人增加。这些数据建议他们与肿瘤的团而非与剩余的工作有一种更靠近的关系肝的质量。 | Soresi Maurizio Giannitrapani Lydia D'Antona Fabio Florena Ada Maria La Spada Emanuele Terranova Angela Cervello Melchiorre D'Alessandro Natale Montalto Giuseppe | 2006 | World Journal of Gastroenterology2006，12，16： | 25 |
| 9 | Sequential algorithms combining non-invasive markers and biopsy for the assessment of liver fibrosis in chronic hepatitis B显示文摘AIM: To assess the performance of several non- invasive markers and of our recently proposed stepwise combination algorithms to diagnose significant fibrosis (F ≥ 2 by METAVIR) and cirrhosis (F4 by METAVIR) in chronic hepatitis B (CHB). METHODS: One hundred and ten consecutive patients (80 males, 30 females, mean age: 42.6 ± 11.3) with CHB undergoing diagnostic liver biopsy were included. AST- to-Platelet ratio (APRI), Forns’ index, AST-to-ALT Ratio, Goteborg University Cirrhosis Index (GUCI), Hui’s model and Fibrotest were measured on the day of liver biopsy. The performance of these methods and of sequential algorithms combining Fibrotest, APRI and biopsy was defined by positive (PPV) and negative (NPV) predictive values, accuracy and area under the curve (AUC). RESULTS: PPV for significant fibrosis was excellent (100%) with Forns and high (> 92%) with APRI, GUCI, Fibrotest and Hui. However, significant fibrosis could not be excluded by any marker (NPV < 65%). Fibro- test had the best PPV and NPV for cirrhosis (87% and 90%, respectively). Fibrotest showed the best AUC for both significant fibrosis and cirrhosis (0.85 and 0.76, respectively). Stepwise combination algorithms of APRI, Fibrotest and biopsy showed excellent performance (0.96 AUC, 100% NPV) for significant fibrosis and 0.95 AUC, 98% NPV for cirrhosis, with 50%-80% reduced need for liver biopsy. CONCLUSION: In CHB sequential combination of APRI, Fibrotest and liver biopsy greatly improves the diagnostic performance of the single non-invasive markers. Need for liver biopsy is reduced by 50%-80% but cannot be completely avoided. Non-invasive markers and biopsy should be considered as agonists and not antagonists towards the common goal of estimating liver fibrosis. | Giada Sebastiani Alessandro Vario Maria Guido Alfredo Alberti | 2007 | World Journal of Gastroenterology2007，13，4： | 26 |
| 10 | GRADE:从证据到推荐显示文摘GRADE系统将指南中的推荐分为强弱两级。本文旨在探索这种分级的含义及对患者、临床医生、政策制定者各自的意义。 | Gordon H Guyatt Andrew D Oxman Regina Kunz Yngve Falck-Ytter Gunn E Vist Alessandro Liberati Holger J Schünemann 谭培勇 陈耀龙 李幼平 | 2009 | 中国循证医学杂志2009，9，3： | 26 |
| 11 | 五个紫菜品系间遗传差异的RAPD分析显示文摘应用随机引物扩增片段多态性 (RAPD)技术对 2种紫菜的 5个品系进行遗传多样性分析。共筛选出 2 1条随机引物 ,PCR反应得到 147条扩增片段。根据共享扩增片段计算遗传相似性指数 (F)和相对遗传距离 ,利用NJ法构建系统树。结果表明 ,条斑紫菜或坛紫菜的养殖品系首先聚类在一起 ,两个条斑紫菜养殖品系之间的遗传距离是0 32 ,两个坛紫菜养殖品系之间的遗传距离是 0 .31。条斑紫菜养殖品系CPY1 0 8A与坛紫菜养殖品系CPH8 83之间的遗传距离最大 ,达 0 .4 2。本文结果提示RAPD可以作为简便有效的分子工具应用于紫菜的遗传多样性和种质鉴定研究中。 | 徐涤 宋林生 秦松 Alessandro Pala 费修绠 曾呈奎 | 2001 | 高技术通讯2001，11，12： | 25 |
| 12 | Laparoscopic pancreaticoduodenectomy: a descriptive and comparative review显示文摘Laparoscopic pancreaticoduodenectomy(LPD) is an extremely challenging surgery. First described in 1994, it has been slow to gain in popularity. Recently, however, we have seen an increase in the number of centers performing this operation, including our own institution, as well as an increase in the quantity of published data. The purpose of this review is to describe the current status of LPD as described in the literature. We performed a literature search in the Pub Med database using Me SH terms 'laparoscopy' and 'pancreaticoduodenectomy'. We then identified articles in the English language with over 20 patients that focused on LPD only. Review articles were excluded and only one article per institution was used for descriptive analysis in order to avoid overlap. There were a total of eight articles meeting review criteria, consisting of 492 patients. On descriptive analysis we found that percent of LPD due to high-grade malignancy averaged 47% over all articles. Average operative time was 452 minutes, blood loss 369 cc's, pancreatic leak rate 15%, delayed gastric emptying 8.6%, length of hospital stay 9.4 days, and short term mortality 2.3%. Comparison studies between open pancreaticoduodenectomy(OPD) and LPD suggested decreased blood loss, longer operative time, similar post-operative complication rate, decreased pain, and shorter hospital length of stay for LPD. There was also increased number of lymph nodes harvested and similar margin free resections with LPD in the majority of studies. LPD is a safe surgery, providing many of the advantages typically associated with laparoscopic procedures. We expect this operation to continue to gain in popularity as well as be offered in increasingly more complex cases. In future studies, it will be beneficial to look further at the oncologic outcome data of LPD including survival. | Justin Merkow Alessandro Paniccia Barish H.Edil | 2015 | Chinese Journal of Cancer Research2015，27，4： | 24 |
| 13 | Role and timing of endoscopy in acute biliary pancreatitis显示文摘The role and timing of endoscopy in the setting of acute biliary pancreatitis(ABP) is still being debated. Despite numerous randomized trials have been published,there is an obvious lack of consensus on the indications and timing of endoscopic retrograde cholangiopancreatography(ERCP) in ABP in metaanalyses and nationwide guidelines. The present editorial has been written to clarify the role of endoscopy in ABP. In clinical practice the decision to perform an ERCP is often based on biochemical and radiological criteria despite they already have been shown to be unreliable predictors of common bile duct stone presence. Endoscopic ultrasonography(EUS) is not currently a worldwide standard diagnostic procedure early in the course of acute biliary pancreatitis,but it has been shown to be accurate,safe and cost effective in diagnosing biliary obstructions compared with magnetic resonance cholangiopancreatography and ERCP and therefore in preventing unnecessary ERCP and its related complications. Early EUS in ABP allows,if appropriate,immediate endoscopic treatment and significant spare of unnecessary operative procedures thus reducing possible related complications. | Andrea Anderloni Alessandro Repici | 2015 | World Journal of Gastroenterology2015，21，40： | 24 |
| 14 | Current concepts in hepatic resection for hepatocellular carcinoma in cirrhotic patients显示文摘Hepatocellular carcinoma(HCC) is one of the most frequent neoplasms worldwide and in most cases it is associated with liver cirrhosis.Liver resection is considered the most potentially curative therapy for HCC patients when liver transplantation is not an option or is not immediately accessible.This review is aimed at investigating the current concepts that drive the surgical choice in the treatment of HCC in cirrhotic patients;Eastern and Western perspectives are highlighted.An extensive literature review of the last two decades was performed,on topics covering various aspects of hepatic resection.Early post-operative and long-term outcome measures adopted were firstly analyzed in an attempt to define an optimal standardization useful for research comparison.The need to avoid the development of post-hepatectomy liver failure represents the 'conditio sine qua non' of surgical choice and the role of the current tools available for the assessment of liver function reserve were investigated.Results of hepatic resection in relationship with tumor burden were compared with those of available competing strategies,namely,radiofrequency ablation for early stages,and trans-arterial chemoembolization for intermediate and advanced stages.Finally,the choice for anatomical versus non-anatomical,as well as the role of laparoscopic approach,was overviewed.The literature review suggests that partial hepatectomy for HCC should be considered in the context of multi-disciplinary evaluation of cirrhotic patients.Scientific research on HCC has moved,in recent years,from surgical therapy toward non-surgical approaches and most of the literature regarding topics debated in the present review is represented by observational studies,whereas very few well-designed randomized controlled trials are currently available;thus,no robust recommendations can be derived. | Alessandro Cucchetti Matteo Cescon Franco Trevisani Antonio Daniele Pinna | 2012 | World Journal of Gastroenterology2012，18，44： | 22 |
| 15 | Correlation between expression of cyclooxygenase-2 and the presence of inflammatory cells in human primary hepatocellular carcinoma: Possible role in tumor promotion and angiogenesis显示文摘AIM: To investigate the association of cyclooxygenase-2(COX-2) expression with angiogenesis and the number and type of inflammatory cells (macrophages/Kupffer cells;mast cells) within primary hepatocellular carcinoma (HCC)tissues and adjacent non-tumorous (MT) tissues.METHODS: Immunohistochemistry for COX-2, CD34,CD68 and mast cell tryptase (MCT) was performed on 14 well-characterized series of liver-cirrhosis-associated HCC patients. COX-2 expression and the number of inflammatory cells in tumor lesions and surrounding liver tissues of each specimen were compared. Moreover,COX-2, CD34 staining and the number of inflammatory cells in areas with different histological degrees within each tumor sample were comparatively analyzed.RESULTS: The percentage of COX-2 positive cells was significantly higher in NT tissues than in tumors. COX-2 expression was higher in well-differentiated HCC than in poorly-differentiated tissues. Few mast cells were observed within the tumor mass, whereas a higher number was observed in the surrounding tissue, especially in peri-portal spaces of NT tissues. Abundant macrophages/Kupffer cells were observed in NT tissues, whereas the number of cells was significantly lower in the tumor mass.However, a higher cell number was observed in the well-differentiated tumor and progressively decreased in relation to the differentiation grade. Within the tumor, a positive correlation was found between COX-2 expression and the number of macrophages/Kupffer cells and mast cells. Moreover, there was a positive correlation between CD34 and COX-2 expression in tumor tissues. Comparison between well- and poorly-differentiated HCC showed that the number of CD34-positive cells decreased with dedifferentiation. However, COX-2 was the only independent variable showing a positive correlation with CD34 in a multivariate analysis.CONCLUSION: The presence of inflammatory cells and COX-2 expression in liver tumor suggests a possible relationship with tumor angiogenesis. COX-2 expressing cells and the number of macrophages/Kupffer cells and mast cells decrease with progression of the disease. | Melchiorre Cervello Daniela Foderà Ada Maria Florena Maurizio Soresi Claudio Tripodo Natale D'Alessandro Giuseppe Montalto | 2005 | World Journal of Gastroenterology2005，11，30： | 21 |
| 16 | Loss of interstitial cells of Cajal network in severe idiopathic gastroparesis显示文摘AIM: To report a case of severe idiopathic gastroparesis in complete absence of Kit-positive gastric interstitial cells of Cajal (ICC). METHODS: Gastric tissue from a patient with severe idiopathic gastroparesis unresponsive to medical treatment and requiring surgery was analyzed by conventional histology and immunohistochemistry. RESULTS: Gastric pacemaker cells expressing Kit receptor had completely disappeared while the local level of stem cell factor, the essential ligand for its development and maintenance, was increased. No signs of cell death were observed in the pacemaker region. CONCLUSION: These results are consistent with the hypothesis that a lack of Kit expression may lead to impaired functioning of ICC. Total gastrectomy proves to be curative. | Edda Battaglia Gabrio Bassotti Graziella Bellone Luca Dughera Anna Maria Serra Luigi Chiusa Alessandro Repici Pierroberto Mioli Giorgio Emanuelli | 2006 | World Journal of Gastroenterology2006，12，38： | 20 |
| 17 | Hepatocellular carcinoma in cirrhotic patients with portal hypertension:Is liver resection always contraindicated?显示文摘AIM:To analyze the outcome of hepatocellular car-cinoma(HCC)resection in cirrhosis patients,related to presence of portal hypertension(PH)and extent of hepatectomy.METHODS:A retrospective analysis of 135 patients with HCC on a background of cirrhosis was submitted to curative liver resection.RESULTS:PH was present in 44(32.5%)patients.Overall mortality and morbidity were 2.2% and 33.7%,respectively.Median survival time in patients with or without PH was 31.6 and 65.1 mo,respectively(P=0.047);in the subgroup with Child-Pugh class A cirrhosis,median survival was 65.1 mo and 60.5 mo,respectively(P=0.257).Survival for patients submitted to limited liver resection was not significantly different in presence or absence of PH.Conversely,median survival for patients after resection of 2 or more segments with or without PH was 64.4 mo and 163.9 mo,respectively(P=0.035).CONCLUSION:PH is not an absolute contraindication to liver resection in Child-Pugh class A cirrhotic patients,but resection of 2 or more segments should not be recommended in patients with PH. | Andrea Ruzzenente Alessandro Valdegamberi Tommaso Campagnaro Simone Conci Silvia Pachera Calogero Iacono Alfredo Guglielmi | 2011 | World Journal of Gastroenterology2011，17，46： | 20 |
| 18 | Characteristics and triggering mechanism of Xinmo landslide on 24 June 2017 in Sichuan, China显示文摘At 5: 39 AM on 24 June 2017, a huge landslide-debris avalanche occurred on Fugui Mountain at Xinmo village, Diexi town, Maoxian county, Sichuan province, China. The debris blocked the Songpinggou River for about 2 km, resulting in a heavy loss of both human lives and properties(10 deaths, 3 injuries, 73 missing, and 103 houses completely destroyed). The objectives of this paper are to understand the overall process and triggering factors of this landslide and to explore the affecting factors for its long term evolution before failure. Post event surveys were carried out the day after the landslide occurrence. Information was gathered from literature and on-site investigation and measurement. Topography, landforms, lithology, geological setting, earthquake history, meteorological and hydrological data of the area were analysed. Aerial photographs and other remote sensing information were used for evaluation and discussion. Eye witnesses also provided a lot of helpful information for us to understand the process of initiation, development and deposition. The depositional characteristics of the moving material as well as the traces of the movement,the structural features of the main scarp and the seismic waves induced by the slide are presented and discussed in detail in this paper. The results show that the mechanism of the landslide is a sudden rupture of the main block caused by the instability of a secondary block at a higher position. After the initiation, the failed rock mass at higher position overloaded the main block at the lower elevation and collapsed in tandem. Fragmentation of the rock mass occurred later, thus forming a debris avalanche with high mobility. This landslide case indicates that such seismic events could influence geological hazards for over 80 years and this study provides reference to the long term susceptibility and risk assessment of secondary geological hazards from earthquake. | SU Li-jun HU Kai-heng ZHANG Wei-feng WANG Jiao LEI Yu ZHANG Chong-lei CUI Peng Alessandro PASUTO ZHENG Quan-hong | 2017 | Journal of Mountain Science2017，14，9： | 20 |
| 19 | Genome and transcriptome analysis of the grapevine(Vitis vinifera L.) WRKY gene family显示文摘The plant WRKY gene family represents an ancient and complex class of zinc-finger transcription factors(TFs)that are involved in the regulation of various physiological processes,such as development and senescence,and in plant response to many biotic and abiotic stresses.Despite the growing number of studies on the genomic organisation of WRKY gene family in different species,little information is available about this family in grapevine(Vitis vinifera L.).In the present study,a total number of 59 putative grapevine WRKY transcription factors(VvWRKYs)were identified based on the analysis of various genomic and proteomic grapevine databases.According to their structural and phylogentic features,the identified grapevine WRKY transcription factors were classified into three main groups.In order to shed light into their regulatory roles in growth and development as well as in response to biotic and abiotic stress in grapevine,the VvWRKYs expression profiles were examined in publicly available microarray data.Bioinformatics analysis of these data revealed distinct temporal and spatial expression patterns of VvWRKYs in various tissues,organs and developmental stages,as well as in response to biotic and abiotic stresses.To also extend our analysis to situations not covered by the arrays and to validate our results,the expression profiles of selected VvWRKYs in response to drought stress,Erysiphe necator(powdery mildew)infection,and hormone treatments(salicilic acid and ethylene),were investigated by quantitative real-time reverse transcription PCR(qRT-PCR).The present study provides a foundation for further comparative genomics and functional studies of this important class of transcriptional regulators in grapevine. | Min Wang Alessandro Vannozzi Gang Wang Ying-Hai Liang Giovanni Battista Tornielli Sara Zenoni Erika Cavallini Mario Pezzotti Zong-Ming(Max)Cheng | 2014 | Horticulture Research2014，1，1： | 19 |
| 20 | Performance of liver stiffness measurements by transient elastography in chronic hepatitis显示文摘AIM:To compare results of liver stiffness measurements by transient elastography(TE) obtained in our patients population with that used in a recently published meta-analysis.METHODS:This was a single center cross-sectional study.Consecutive patients with chronic viral hepatitis scheduled for liver biopsy at the outpatient ward of our Infectious Diseases Department were enrolled.TE was carried out by using FibroScan(Echosens,Paris,France).Liver biopsy was performed on the same day as TE,as day case procedure.Fibrosis was staged according to the Metavir scoring system.The diagnostic performance of TE was assessed by using receiver operating characteristic(ROC) curves and the area under the ROC curve analysis.RESULTS:Two hundred and fifty-two patients met the inclusion criteria.Six(2%) patients were excluded due to unreliable TE measurements.Thus,246(171 men and 75 women) patients were analyzed.One hundred and ninety-five(79.3%) patients had chronic hepatitis C,41(16.7%) had chronic hepatitis B,and 10(4.0%) were coinfected with human immunodeficiency virus.ROC curve analysis identified optimal cut-off value of TE as high as 6.9 kPa forF ≥ 2;7.9 kPa forF ≥ 3;9.6 kPa for F = 4 in all patients(n = 246),and as high as 6.9 kPa for F ≥ 2;7.3 kPa for F ≥ 3;9.3 kPa for F = 4 in patients with hepatitis C(n = 195).Cut-off values of TE obtained by maximizing only the specificity were as high as 6.9 kPa for F ≥ 2;9.6 kPa for F ≥ 3;12.2 kPa for F = 4 in all patients(n = 246),and as high as 7.0 kPa forF ≥ 2;9.3 kPa forF ≥ 3;12.3 kPa forF = 4 in patients with hepatitis C(n = 195).CONCLUSION:The cut-off values of TE obtained in this single center study are comparable to that obtained in a recently published meta-analysis that included up to 40 studies. | Giovanna Ferraioli Carmine Tinelli Barbara Dal Bello Mabel Zicchetti Raffaella Lissandrin Gaetano Filice Carlo Filice Elisabetta Above Giorgio Barbarini Enrico Brunetti Willy Calderon Marta Di Gregorio Roberto Gulminetti Paolo Lanzarini Serena Ludovisi Laura Maiocchi Antonello Malfitano Giuseppe Michelone Lorenzo Minoli Mario Mondelli Stefano Novati Savino FA Patruno Alessandro Perretti Gianluigi Poma Paolo Sacchi Domenico Zanaboni Marco Zaramella | 2013 | World Journal of Gastroenterology2013，19，1： | 18 |
您所在的机构暂未开通此部分的功能，请联系管理员