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| 1 | Benign liver tumors in pediatric patients-Review with emphasis on imaging features显示文摘Benign hepatic tumors are commonly observed in adults,but rarely reported in children.The reasons for this remain speculative and the exact data concerning the incidence of these lesions are lacking.Benign hepatic tumors represent a diverse group of epithelial and mesenchymal tumors.In pediatric patients,most benign focal liver lesions are inborn and may grow like the rest of the body.Knowledge of pediatric liver diseases and their imaging appearances is essential in order to make an appropriate differential diagnosis.Selection of the appropriate imaging test is challenging,since it depends on a number of age-related factors.This paper will discuss the most frequently encountered benign liver tumors in children(infantile hepatic hemangioendothelioma,mesenchymal hamartoma,focal nodular hyperplasia,nodular regenerative hyperplasia,and hepatocellular adenoma),as well as a comparison to the current knowledge regarding such tumors in adult patients.The current emphasis is on imaging features,which are helpful not only for the initial diagnosis,but also for pre- and posttreatment evaluation and follow-up.In addition,future perspectives of contrast-enhanced ultrasound(CEUS) in pediatric patients are highlighted,with descriptions of enhancement patterns for each lesion being discussed.The role of advanced imaging tests such as CEUS and magnetic resonance imaging,which allow for non-invasive assessment of liver tumors,is of utmost importance in pediatric patients,especially when repeated imaging tests are needed and radiation exposure should be avoided. | Liliana Chiorean Xin-Wu Cui Andrea Tannapfel Doris Franke Martin Stenzel Wojciech Kosiak Dagmar Schreiber-Dietrich J?rg Jüngert Jian-Min Chang Christoph F Dietrich | 2015 | World Journal of Gastroenterology2015，21，28： | 16 |
| 2 | Capecitabine and irinotecan with and without bevacizumab for advanced colorectal cancer patients显示文摘AIM:To investigate the efficacy and safety of capecitabine plus irinotecan±bevacizumab in advanced or metastatic colorectal cancer patients. METHODS:Forty six patients with previously untreated,locally-advanced or metastatic colorectal cancer(mCRC) were recruited between 2001-2006 in a prospective open-label phaseⅡtrial,in German community-based outpatient clinics.Patients received a standard capecitabine plus irinotecan(CAPIRI) or CAPIRI plus bevacizumab(CAPIRI-BEV) regimen every 3 wk. Dose reductions were mandatory from the first cycle in cases of>grade 2 toxicity.The treatment choice of bevacizumab was at the discretion of the physician.Theprimary endpoints were response and toxicity and secondary endpoints included progression-free survival and overall survival. RESULTS:In the CAPIRI group vs the CAPRI-Bev group there were more female than male patients(47% vs 24%) ,and more patients had colon as the primary tumor site(58.8%vs 48.2%) with fewer patients having sigmoid colon as primary tumor site(5.9%vs 20.7%) .Grade 3/4 toxicity was higher with CAPIRI than CAPIRI-Bev:82%vs 58.6%.Partial response rates were 29.4%and 34.5%,and tumor control rates were 70.6%and 75.9%,respectively.No complete responses were observed.The median progression-free survival was 11.4 mo and 12.8 mo for CAPIRI and CAPIRI-Bev,respectively.The median overall survival for CAPIRI was 15 mo(458 d) and for CAPIRI-Bev 24 mo(733 d) .These differences were not statistically different.In the CAPIRI-Bev,group,two patients underwent a full secondary tumor resection after treatment,whereas in the CAPIRI group no cases underwent this procedure. CONCLUSION:Both regimens were well tolerated and offered effective tumor growth control in this outpatient setting.Severe gastrointestinal toxicities and thromboembolic events were rare and if observed were never fatal. | Markus Moehler Martin F Sprinzl Murad Abdelfattah Carl C Schimanski Bernd Adami Werner Godderz Klaus Majer Dimitri Flieger Andreas Teufel Juergen Siebler Thomas Hoehler Peter R Galle Stephan Kanzler | 2009 | World Journal of Gastroenterology2009，15，4： | 10 |
| 3 | Proposal of a computed tomography classification for hepatic alveolar echinococcosis显示文摘AIM: To establish a computed tomography(CT)-morphological classification for hepatic alveolar echinococcosis was the aim of the study. METHODS: The CT morphology of hepatic lesions in 228 patients with confirmed alveolar echinococcosis(AE) drawn from the Echinococcus Databank of the University Hospital of Ulm was reviewed retrospectively. For this reason, CT datasets of combined positron emission tomography(PET)-CT examinations were evaluated. The diagnosis of AE was made in patientswith unequivocal seropositivity; positive histological findings following diagnostic puncture or partial resection of the liver; and/or findings typical for AE at either ultrasonography, CT, magnetic resonance imaging or PET-CT. The CT-morphological findings were grouped into the new classification scheme.RESULTS: Within the classification a lesion was dedicated to one out of five 'primary morphologies' as well as to one out of six 'patterns of calcification'. 'primary morphology' and 'pattern of calcification' are primarily focussed on separately from each other and combined, whereas the 'primary morphology' V is not further characterized by a 'pattern of calcification'. Based on the five primary morphologies, further descriptive sub-criteria were appended to types Ⅰ-Ⅲ. An analysis of the calcification pattern in relation to the primary morphology revealed the exclusive association of the central calcification with type Ⅳ primary morphology. Similarly, certain calcification patterns exhibited a clear predominance for other primary morphologies, which underscores the delimitation of the individual primary morphological types from each other. These relationships in terms of calcification patterns extend into the primary morphological sub-criteria, demonstrating the clear subordination of those criteria.CONCLUSION: The proposed CT-morphological classification(EMUC-CT) is intended to facilitate the recognition and interpretation of lesions in hepatic alveolar echinococcosis. This could help to interpret different clinical courses better and shall assist in the context of scientific studies to improve the comparability of CT findings. | Tilmann Graeter Wolfgang Kratzer Suemeyra Oeztuerk Mark Martin Haenle Richard Andrew Mason Andreas Hillenbrand Thomas Kull Thomas F Barth Peter Kern Beate Gruener | 2016 | World Journal of Gastroenterology2016，22，13： | 10 |
| 4 | Double-balloon-enteroscopy-based endoscopic retrograde cholangiopancreatography in post-surgical patients显示文摘AIM: To evaluate double balloon enteroscopy (DBE) in post-surgical patients to perform endoscopic retrograde cholangiopancreatography (ERCP) and interventions. METHODS: In 37 post-surgical patients, a stepwise approach was performed to reach normal papilla or enteral anastomoses of the biliary tract/pancreas. When conventional endoscopy failed, DBE-based ERCP was performed and standard parameters for DBE, ERCP and interventions were recorded. RESULTS: Push-enteroscopy (overall, 16 procedures) reached enteral anastomoses only in six out of 37 post-surgical patients (16.2%). DBE achieved a high rate of luminal access to the biliary tract in 23 of the remaining 31 patients (74.1%) and to the pancreatic duct (three patients). Among all DBE-based ERCPs (86 procedures), 21/23 patients (91.3%) were successfully treated. Interventions included ostium incision or papillotomy in 6/23 (26%) and 7/23 patients (30.4%), respectively. Biliary endoprosthesis insertion and regular exchange was achieved in 17/23 (73.9%) and 7/23 patients (30.4%), respectively. Furthermore, bile duct stone extraction as well as ostium and papillary dilation were performed in 5/23 (21.7%) and 3/23 patients (13.0%), respectively. Complications during DBE-based procedures were bleeding (1.1%), perforation (2.3%) and pancreatitis (2.3%), and minor complications occurred in up to 19.1%. CONCLUSION: The appropriate use of DBE yields a high rate of luminal access to papilla or enteral anastomoses in more than two-thirds of post-surgical patients, allowing important successful endoscopic therapeutic interventions. | Martin Raithel Harald Dormann Andreas Naegel Frank Boxberger Eckhart G Hahn Markus F Neurath Juergen Maiss | 2011 | World Journal of Gastroenterology2011，17，18： | 9 |
| 5 | Advances in hepatitis C therapy: What is the current state-what come's next?显示文摘Chronic hepatitis C virus(HCV) infection affects 80-160 million people worldwide and is one of the leading causes of chronic liver disease.It is only a few years ago that standard treatment regimes were based on pegylated interferon alpha and ribavirin.However,treatment of HCV has undergone a revolutionary change in recent years.The admission of the nucleotide polymerase inhibitor Sofosbuvir enabled an interferon-free regimen with direct antiviral agents(DAA).Meanwhile seven DAAs are available and can be applied in several combinations for 8 to 24 wk depending on HCV genotype and patient characteristics such as cirrhosis and chronic renal failure.High rates of sustained virological response(SVR) rates can be achieved with these novel drugs.Even in difficult to treat populations such as patients with liver cirrhosis,HCV-human immunodeficiency virus co-infections,after liver transplantion,or with chronic kidney disease comparable high rates of SVR can be achieved.The anticipated 2nd generation DAAs are strikingly effective in patients so far classified as difficult to treat including decompensated liver cirrhosis or posttransplant patients.These 2nd generations DAAs will have higher resistance barriers,higher antiviral effects and a pan-genotypic spectrum.This review highlights the current state of the art of antiviral treatment in hepatitis Cand gives an outlook for upcoming therapies. | Steffen Zopf Andreas E Kremer Markus F Neurath Juergen Siebler | 2016 | World Journal of Hepatology2016，8，3： | 7 |
| 6 | Sporadic versus hereditary gastrinomas of the duodenum and pancreas: Distinct clinico-pathological and epidemiological features显示文摘Gastrinomas are defined as gastrin secreting tumors that are associated with Zollinger-Ellison syndrome (ZES). ZES is characterized by elevated fasting gastrin serum levels, positive secretin stimulation test and clinical symptoms such as recurrent peptic ulcer disease, gastroesophageal re?ux disease and occasional diarrhea. Genetically, nonhereditary (sporadic) gastrinomas are distinguished from hereditary gastrinomas, which are associated with multiple endocrine neoplasia type 1 (MEN1) syndrome. In general, duodenal gastrinomas are small and solitary if they are sporadic and multiple as well as hereditary. The sporadic gastrinomas occur in the duodenum or in the pancreas while the hereditary gastrinomas almost all occur in the duodenum. Our series of 77 sporadic duodenal neuroendocrine tumors (NETs) includes 18 patients (23.4%) with gastrinomas and ZES. Of 535 sporadic NETs in the pancreas collected from the NET archives of the departments of pathology in Zürich, Switzerland, and Kiel, Germany, 24 patients (4.5%) suffered from sporadic pancreatic gastrinomas and ZES. These NETs have to be distinguished fromtumors with immunohistochemical positivity for gastrin but without evidence of ZES. An additional 19 patients suffered from MEN1 and ZES. These patients showed exclusively duodenal gastrinomas, but not pancreatic gastrinomas. The prognosis of sporadic and MEN1- associated duodenal gastrinomas is better than that of pancreatic gastrinomas, since they progress slowly to liver metastasis. In summary, sporadic and MEN1- associated gastrinomas in the duodenum and pancreas show different clinico-pathological and genetic features. The incidence of sporadic duodenal gastrin-producing tumors is increasing, possibly due to optimized diagnostic procedures. In contrast, pancreatic MEN1- associated gastrinomas seem to be extremely rare. A considerable subset of tumors with immunohistochemical expression of gastrin but without evidence of ZES should be designated as functionally inactive NETs expressing gastrin, but not as gastrinomas. | Martin Anlauf Nele Garbrecht Tobias Henopp Anja Schmitt Regina Schlenger Andreas Raffel Markus Krausch Oliver Gimm Claus F Eisenberger Wolfram T Knoefel Henning Dralle Paul Komminoth Philipp U Heitz Aurel Perren Günter Klppel | 2006 | World Journal of Gastroenterology2006，12，34： | 7 |
| 7 | Dynamic magnetic resonance defecography in 10 asymptomatic volunteers显示文摘AIM: Evaluation of the wide range of normal findings in asymptomatic women undergoing dynamic magnetic resonance (MR) defecography. METHODS: MR defecography of 10 healthy female volunteers (median age: 31 years) without previous pregnancies or history of surgery were evaluated. The rectum was filled with 180 mL gadolinium ultrasound gel mixture. MR defecography was performed in the supine position. The pelvic floor was visualized with a dynamic T2-weighted sagittal plane where all relevant pelvic floor organs were acquired during defecation. The volunteers were instructed to relax and then to perform straining maneuvers to empty the rectum. The pubococcygeal line (PCGL) was used as the line of reference. The movement of pelvic floor organs was measured as the vertical distance to this reference line. Data were recorded in the resting position as well as during the defecation process with maximal straining. Examinations were performed and evaluated by two experienced abdominal radiologists without knowledge of patient history. RESULTS: Average position of the anorectal junction was located at -5.3 mm at rest and -29.9 mm during straining. The anorectal angle widened significantly from 93° at rest to 109° during defecation. A rectocele was diagnosed in eight out of 10 volunteers showing an average diameter of 25.9 mm. The bladder base was located at a position of +23 mm at rest and descended to -8.1 mm during defecation in relation to the PCGL. The bladder base moved below the PCGL in six out of 10 volunteers, which was formally defined as a cystocele. The uterocervical junction was located at an average level of +43.1 mm at rest and at +7.9 mm during straining. The uterocervical junction of three volunteers fell below the PCGL; described formally as uterocervical prolapse. CONCLUSION: Based on the range of standard values in asymptomatic volunteers, MR defecography values for pathological changes have to be re-evaluated. | Andreas G Schreyer Christian Paetzel Alois Fürst Lena M Dendl Elisabeth Hutzel René Müller-Wille Philipp Wiggermann Stephan Schleder Christian Stroszczynski Patrick Hoffstetter | 2012 | World Journal of Gastroenterology2012，18，46： | 7 |
| 8 | High prevalence of vitamin A deficiency in Crohn's disease patients according to serum retinol levels and the relative dose-response test显示文摘AIM:To assess the vitamin A status of patients with Crohn's disease(CD) by evaluating serum retinol levels and the relative dose response(RDR) test(liver retinol stores).METHODS:Vitamin A nutritional status was measured by serum retinol obtained by high performance liquid chromatography and the RDR test for evaluation of the hepatic stores.Body composition was performed by densitometry by dual-energy X-ray absorptiometry.Vitamin A dietary intake was assessed from a semiquantitative food frequency questionnaire.RESULTS:This study included 38 CD patients and 33 controls.Low serum retinol concentrations were detected in 29% of CD patients vs 15% in controls(P < 0.005).The RDR test was positive in 37% of CD patients vs 12% in controls,which indicated inadequate hepatic vitamin A stores(P < 0.005).Individuals with hypovitaminosis A had lower BMI and body fat compared with those without this deficiency.There was no association between vitamin A deficiency and its dietary intake,ileal location,presence of disease activity and prior bowel resections.CONCLUSION:Patients with CD have higher prevalence of vitamin A deficiency,as assessed by two independent methods. | Márcia Soares-Mota Tianny A Silva Luanda M Gomes Marco AS Pinto Laura MC Mendon?a Maria Lúcia F Farias Tiago Nunes Andrea Ramalho Cyrla Zaltman | 2015 | World Journal of Gastroenterology2015，21，5： | 4 |
| 9 | Small intestine bleeding due to multifocal angiosarcoma显示文摘We report a case of an 84-year-old male patient with primary small intestinal angiosarcoma.The patient initially presented with anemia and melena.Consecutive endoscopy revealed no signs of upper or lower active gastrointestinal bleeding.The patient had been diagnosed 3 years previously with an aortic dilation,which was treated with a stent.Computed tomography suggested an aorto-intestinal fistula as the cause of the intestinal bleeding,leading to operative stent explantation and aortic replacement.However,an aorto-intestinal fistula was not found,and the intestinal bleeding did not arrest postoperatively.The constant need for blood transfusions made an exploratory laparotomy imperative,which showed multiple bleeding sites,predominately in the jejunal wall.A distal loop jejunostomy was conducted to contain the small intestinal bleeding and a segmental resection for histological evaluation was performed.The histological analysis revealed a lessdifferentiated tumor with characteristic CD31,cytokeratin,and vimentin expression,which led to the diagnosis of small intestinal angiosarcoma.Consequently,the infiltrated part of the jejunum was successfully resected in a subsequent operation,and adjuvant chemotherapy with paclitaxel was planned.Angiosarcoma of the small intestine is an extremely rare malignant neoplasm that presents with bleeding and high mortality.Early diagnosis and treatment are essential to improve outcome.A small intestinal angiosarcoma is a challenging diagnosis to make because of its rarity,nonspecific symptoms of altered intestinal function,nonspecific abdominal pain,severe melena,and acute abdominal signs.Therefore,a quick clinical and histological diagnosis and decisive measures including surgery and adjuvant chemotherapy should be the aim. | Luisa Zacarias Fhrding Arne Macher Stefan Braunstein Wolfram Trudo Knoefel Stefan Andreas Topp | 2012 | World Journal of Gastroenterology2012，18，44： | 4 |
| 10 | Colonic stenting versus emergency surgery for acute left-sided malignant colonic obstruction: a multicentre randomised trial显示文摘 | Jeanin E van Hooft Willem A Bemelman Bas Oldenburg Andreas W Marinelli Martijn F Lutke Holzik Marina J Grubben Mirjam A Sprangers Marcel G Dijkgraaf Paul Fockens | 2011 | Lancet Oncology2011，，4： | 3 |
| 11 | Nat Genet:单基因突变导致过敏性皮炎的发生显示文摘最近,研究者们鉴定出了一类导致神经性皮炎发生的关键基因突变:CARDll。来自美国NIH过敏与传染病研究所的研究者们通过对四个没有血缘关系的患病家庭进行分析,发现了这一导致疾病产生的基因、 | Chi A Ma, Yuan Zhang, Michael A Weinreich, Jonathan J Lyons, Celeste G Nelson, Thomas DiMaggio, Kelly D Stone, Joshua D Milner Jeffrey R Stinson, Elisa Ruffo, Batsukh Dorjbal, Swadhinya Arjunaraja, Kelsey Voss, Andrew L Snow Jordan K Abbott, Pia J Hauk, Paul R Reynolds, Erwin W Gelfand Elisa Ruffo Salomé Glauzy, Natsuko Yamakawa, Eric Meffre Jennifer Stoddard, Julie Niemela, Sergio D Rosenzweig Yu Zhang, Helen F Matthews Joshua J McElwee Nina Jones Alejandro Palma, Matías Oleastro, Emma Prieto, Andrea R Bernasconi, Geronimo Dubra, Silvia Danielian, Jonathan Zaiat, Marcelo A Marti Brian Kim Megan A Cooper Neil Romberg | 2017 | 现代生物医学进展2017，17，27： | 3 |
| 12 | Noninvasive detection and evaluation of atherosclerotic coronary plaques with multislice computed tomography 1 1 This study was performed without additional financial support.显示文摘 | Stephen Schroeder Andreas F Kopp Andreas Baumbach Christoph Meisner Axel Kuettner Christian Georg Bernd Ohnesorge Christian Herdeg Claus D Claussen Karl R Karsch | 2001 | Journal of the American College of Cardiology2001，，5： | 3 |
| 13 | Strong prognostic value of nodal and bone marrow micro-involvement in patients with pancreatic ductal carcinoma receiving no adjuvant chemotherapy显示文摘AIM: To study the prognostic value of adjuvant chemo-therapy in patients with pancreatic, ductal adenocar-cinoma.METHODS: Lymph nodes from 106 patients with resectable pancreatic ductal adenocarcinoma were systematically sampled. A total of 318 lymph nodes classified histopathologically as tumor-free were examined using sensitive immunohistochemical assays. Forty-three (41%) of the 106 patients were staged as pT1/2, 63 (59%) as pT3/4, 51 (48%) as pN0, and 55 (52%) as pN1. The study population included 59 (56%) patients exhibiting G1/2, and 47 (44%) patients with G3 tumors. Patients received no adjuvant chemo- or radiation therapy and were followed up for a median of 12 (range: 3.5 to 139) mo.RESULTS: Immunostaining with Ber-EP4 revealed nodal microinvolvement in lymph nodes classified as “tumor free” by conventional histopathology in 73 (69%) out of the 106 patients. Twenty-nine (57%)of 51 patients staged histopathologically as pN0 had nodal microinvolvement. The five-year survival probability for pN0-patients was 54% for those without nodal microinvolvement and 0% for those with nodal microinvolvement. Cox-regression modeling revealed the independent prognostic effect of nodal microinvolvement on recurrence-free (relative risk 2.92, P = 0.005) and overall (relative risk 2.49, P = 0.009) survival.CONCLUSION: The study reveals strong and independent prognostic significance of nodal microinvolvement in patients with pancreatic ductal adenocarcinoma who have received no adjuvant therapy. The addition of immunohistochemical findings to histopathology reports may help to improve risk stratification of patients with pancreatic cancer. | Emre F Yekebas Dean Bogoevski Michael Bubenheim Bjrn-Christian Link Jussuf T Kaifi Robin Wachowiak Oliver Mann Asad Kutup Guellue Cataldegirmen Lars Wolfram Andreas Erbersdobler Christoph Klein Klaus Pantel Jakob R Izbicki | 2006 | World Journal of Gastroenterology2006，12，40： | 3 |
| 14 | Double-layer graphene for enhanced tunable infrared plasmonics显示文摘Graphene is emerging as a promising material for photonic applications owing to its unique optoelectronic properties.Graphene supports tunable,long-lived and extremely confined plasmons that have great potential for applications such as biosensing and optical communications.However,in order to excite plasmonic resonances in graphene,this material requires a high doping level,which is challenging to achieve without degrading carrier mobility and stability.Here,we demonstrate that the infrared plasmonic response of a graphene multilayer stack is analogous to that of a highly doped single layer of graphene,preserving mobility and supporting plasmonic resonances with higher oscillator strength than previously explored single-layer devices.Particularly,we find that the optically equivalent carrier density in multilayer graphene is larger than the sum of those in the individual layers.Furthermore,electrostatic biasing in multilayer graphene is enhanced with respect to single layer due to the redistribution of carriers over different layers,thus extending the spectral tuning range of the plasmonic structure.The superior effective doping and improved tunability of multilayer graphene stacks should enable a plethora of future infrared plasmonic devices with high optical performance and wide tunability. | Daniel Rodrigo Andreas Tittl Odeta Limaj F Javier García de Abajo Valerio Pruneri Hatice Altug | 2017 | Light(Science & Applications)2017，6，1： | 3 |
| 15 | Association of nonalcoholic fatty liver disease and liver cancer显示文摘AIM:To investigate the association between nonalcoholic fatty liver disease(NAFLD) and liver cancer,and NAFLD prevalence in different liver tumors.METHODS:This is a retrospective study of the clinical,laboratory and histological data of 120 patients diagnosed with primary or secondary hepatic neoplasms and treated at a tertiary center where they underwent hepatic resection and/or liver transplantation,with subsequent evaluation of the explant or liver biopsy.The following criteria were used to exclude patients from the study:a history of alcohol abuse,hepatitis B or C infection,no tumor detected in the liver tissue examined by histological analysis,and the presence of chronic autoimmune hepatitis,hemochromatosis,Wilson's disease,or hepatoblastoma.The occurrence of NAFLD and the association with its known risk factors were studied.The risk factors considered were diabetes mellitus,impaired glucose tolerance,impaired fasting glucose,body mass index,dyslipidemia,and arterial hypertension.Presence of reticulin fibers in the hepatic neoplasms was assessed by histological analysis using slide-mounted specimens stained with either hematoxylin and eosin or Masson's trichrome and silver impregnation.Analysis of tumor-free liver parenchyma was carried out to determine the association between NAFLD and its histological grade.RESULTS:No difference was found in the association of NAFLD with the general population(34.2% and 30.0% respectively,95%CI:25.8-43.4).Evaluation by cancer type showed that NAFLD was more prevalent in patients with liver metastasis of colorectal cancer than in patients with hepatocellular carcinoma and intrahepatic cholangiocarcinoma(OR = 3.99,95%CI:1.78-8.94,P < 0.001 vs OR = 0.60,95%CI:0.18-2.01,P = 0.406 and OR = 0.70,95%CI:0.18-2.80,P = 0.613,respectively).There was a higher prevalence of liver fibrosis in patients with hepatocellular carcinoma(OR = 3.50,95%CI:1.06-11.57,P = 0.032).Evaluation of the relationship between the presence of NAFLD,nonalcoholic steatohepatitis,and liver fibrosis,and their risk factors,showed no significant statistical association for any of the tumors studied.CONCLUSION:NAFLD is more common in patients with liver metastases caused by colorectal cancer. | Perla Oliveira Schulz Fabio Goncalves Ferreira Maria de Fátima Araújo Nascimento Andrea Vieira Mauricio Alves Ribeiro André Ibrahim David Luiz Arnaldo Szutan | 2015 | World Journal of Gastroenterology2015，21，3： | 2 |
| 16 | Comparison of Hemospray~? and Endoclot? for the treatment of gastrointestinal bleeding显示文摘BACKGROUND Gastrointestinal(GI) bleeding is a common indication for endoscopy. For refractory cases, hemostatic powders(HP) represent 'touch-free' agents.AIM To analyze short term(ST-within 72 h-) and long-term(LT-within 30 d-) success for achieving hemostasis with HP and to directly compare the two agents Hemospray(HS) and Endoclot(EC).METHODS HP was applied in 154 consecutive patients(mean age 67 years) with GI bleeding.Patients were followed up for 1 mo(mean follow-up: 3.2 mo).RESULTS Majority of applications were in upper GI tract(89%) with following bleeding sources: peptic ulcer disease(35%), esophageal varices(7%), tumor bleeding(11.7%), reflux esophagitis(8.7%), diffuse bleeding and erosions(15.3%). Overall ST success was achieved in 125 patients(81%) and LT success in 81 patients(67%). Re-bleeding occurred in 27% of all patients. In 72 patients(47%), HP was applied as a salvage hemostatic therapy, here ST and LT success were 81% and64%, with re-bleeding in 32%. As a primary hemostatic therapy, ST and LT success were 82% and 69%, with re-bleeding occurring in 22%. HS was more frequently applied for upper GI bleeding(P = 0.04)CONCLUSION Both HP allow for effective hemostasis with no differences in ST, LT success and re-bleeding. | Francesco Vitali Andreas Naegel Raja Atreya Steffen Zopf Clemens Neufert Juergen Siebler Markus F Neurath Timo Rath | 2019 | World Journal of Gastroenterology2019，25，13： | 2 |
| 17 | p38α controls erythroblast enucleation and Rb signaling in stress erythropoiesis显示文摘成红血球细胞的 Enucleation 对哺乳动物在终端区别期间唯一。尽管 erythroid enucleation 广泛地被学习了,包括 retinoblastoma 蛋白质(Rb ) ,仅仅一些基因被识别了调整原子挤出。它由哪个仍然保持大部分未定义发信号的分子,外来的刺激例如 erythropoietin (Epo ) ,是 transduced 导致 enucleation。这里,我们显示出那 p38α,激活 mitogen 的蛋白质 kinase (MAPK ) ,为 erythroid enucleation 被要求。在包含高 Epo 层次并且模仿的一个前 vivo 区别系统强调红血球生成, p38α在 erythroid 区别期间被激活。p38α 的损失;完全堵住主要成红血球细胞的 enucleation。而且, p38α在胎儿、贫血的压力红血球生成期间在 vivo 以一种房间自治的方式调整成红血球细胞 enucleation。显著地, p38α 的损失;导致 p21 目标 Rb 的 p21,和减少的激活的 downregulation,哪个是成红血球细胞 enucleation 的重要管理者。这研究表明那 p38α在压力红血球生成期间是为成红血球细胞 enucleation 的一个关键发信号分子。 | Simon M Schultze Andreas Mairhofer Dan Li Jin Cen Hartmut Beug Erwin F Wagner Lijian Hui | 2012 | Cell Research2012，22，3： | 2 |
| 18 | Ultrasound imaging of abdominal sarcoidosis: State of the art显示文摘Since it has been recognized that sarcoidosis(SA) is not an exclusive disorder of the lungs but can also affect other organs such as the liver and spleen, efforts have been made to define specific imaging criteria for the diagnosis of the single organ involvement, and the concept has been reinforced that the exclusion of alternative causes is important to achieve the correct diagnosis. Ultrasound(US)is a useful tool to evaluate patients with suspected abdominal SA, such as of the liver, spleen, kidney, pancreas and other organs, showing findings such as organomegaly, focal lesions and lymphadenopathy. While the diagnosis of abdominal SA is more predictable in the case of involvement of other organs(e.g.,lungs), the problem is more complex in the case of isolated abdominal SA. The recent use of contrast-enhanced ultrasound and endoscopic ultrasound elastography has provided additional information about the enhancement patterns and tissue rigidity in abdominal SA. Here we critically review the role of US in abdominal SA, reporting typical findings and limitations of current evidence and by discussing future perspectives of study. | Claudio Tana Cosima Schiavone Andrea Ticinesi Fabrizio Ricci Maria Adele Giamberardino Francesco Cipollone Mauro Silingardi Tiziana Meschi Christoph F Dietrich | 2019 | World Journal of Clinical Cases2019，7，7： | 2 |
| 19 | Angiopoietin-1 inhibits endothelial cell apoptosis via Akt/Survivin pathway 显示文摘 | Andreas P David F Keyvan M | 2000 | Biol Chem2000，275，13： | 2 |
| 20 | The Treatment of Intertrochanteric Fractures: Results Using an Intramedullary Nail With Integrated Cephalocervical Screws and Linear Compression显示文摘 | Andreas H Ruecker M Rupprecht M Gruber M Gebauer F Barvencik D Briem J M Rueger | 2009 | Journal of Orthopaedic Trauma2009，，1： | 2 |
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