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| 1 | Cyclosporine versus tacrolimus in patients with HCV infection after liver transplantation:Effects on virus replication and recurrent hepatitis显示文摘瞄准:决定 calcineurin 禁止者, cyclosporine 和 tacrolimus 的效果,在丙肝上,在病人的周期性的丙肝的病毒(HCV ) 复制和活动张贴肝移植。方法:在我们的中心为在 1999 和 2003 之间的联系 HCV 的肝肝硬化收到了肝移植的 107 个病人的一个队的数据回顾地被分析。浆液 HCV-RNA 的水平和周期性的肝炎的活动在作为主要抑制免疫力的代理人和没在移植以后在开始的 12 瞬间以内导致胆汁的复杂并发症的不那样类似的抑制免疫力的政体收到了 cyclosporine 或 tacrolimus 的 47 个病人之间被比较。结果:HCV-RNA 在移植以后在 3 瞬间以内增加了,但是 cyclosporine 组和 tacrolimus 组之间的差别是不足道的(在 12 瞬间的 P=0.49 ) 。另外,由浆液 transaminases 决定了的周期性的肝炎并且门发炎和纤维变性的组织学的分级没在 12 瞬间(P=0.34 ) 以后显示出有效差量。结论:一个主要抑制免疫力的代理人不在肝移植以后在感染 HCV 的病人影响周期性的肝炎的正式就职或严厉的 Cyclosporine 或 tacrolimus。 | Philip Hilgard Alisan Kahraman Nils Lehmann Cornelia Seltmann Susanne Beckebaum R Stefan Ross Hideo A Baba Massimo Malago Christoph E Broelsch Guido Gerken | 2006 | World Journal of Gastroenterology2006,12,5: | 235 |
| 2 | Interleukin-6: a villain in the drama of pancreatic cancer development and progression显示文摘BACKGROUND: Pancreatic ductal adenocarcinoma(PDAC)is a devastating malignancy with a poor prognosis and little treatment options. The development and progression of the disease is fostered by inflammatory cells and cytokines. One of these cytokines is interleukin-6(IL-6), which plays an important role in a wide range of biologic activities.DATA SOURCES: A systematic search of PubMed was performed to identify relevant studies using key words such as interleukin-6,inflammatory cytokines, inflammation and pancreatic cancer or PDAC. Articles related to IL-6 and pancreatic cancer were systematically reviewed.RESULTS: IL-6 is elevated in the serum of pancreatic cancer patients and correlates with cachexia, advanced tumor stage and poor survival. Its expression is enhanced by hypoxia and proteins involved in pancreatic cancer development like Kras,mesothelin or ZIP4. IL-6 in turn contributes to the generation of a pro-tumorigenic microenvironment and is probably involved in angiogenesis and metastasis. In experimental mouse models of PDAC, IL-6 was important for the development and progression of precursor lesions.CONCLUSION: IL-6 emerges as a key player in pancreatic cancer development and progression, and hence should be considered as a new therapeutic target. | Reinhild Holmer Freya A Goumas Georg H Waetzig Stefan Rose-John Holger Kalthoff | 2014 | Hepatobiliary & Pancreatic Diseases International2014,13,4: | 16 |
| 3 | Are there new approaches for diagnosis, therapy guidance and outcome prediction of sepsis?显示文摘Beside many efforts to improve outcome, sepsis is still one of the most frequent causes of death in critically ill patients. It is the most common condition with high mortality in intensive care units. The complexity of the septic syndrome comprises immunological aspects- i.e.,sepsis induced immunosuppression- but is not restricted to this fact in modern concepts. So far, exact mechanisms and variables determining outcome and mortality stay unclear. Since there is no typical risk profile, early diagnosis and risk stratification remain difficult, which hinders rapid and effective treatment initiation. Due to the heterogeneous nature of sepsis, potential therapy options should be adapted to the individual. Biomarkers like C-reactive protein and procalcitonin are routinely used as complementary tools in clinical decision-making. Beyond the acute phase proteins, a wide bunch of promising substances and non-laboratory tools with potential diagnostic and prognostic value is under intensive investigation. So far, clinical decision just based on biomarker assessment is not yet feasible. However, biomarkers should be considered as a complementary approach. | Dubravka Kojic Benedikt H Siegler Florian Uhle Christoph Lichtenstern Peter P Nawroth Markus A Weigand Stefan Hofer Thorsten Brenner | 2015 | World Journal of Experimental Medicine2015,5,2: | 14 |
| 4 | 酒精摄入、心脏生物标志物和心房颤动风险与不良结局显示文摘酒精摄入和新发心房颤动相关性证据不一,尤其是在低剂量下。该研究评估欧洲队列在整个饮酒范围内酒精摄入、生物标志物和新发心房颤动的关系。方法和结果:在一个以社区为基础的汇集队列中,研究者随访107845人,以评估酒精摄入(酒精种类和饮酒方式)与新发心房颤动的关系。研究者收集经典心血管病危险因素和新发心力衰竭的信息,并检测生物标记物氨基末端脑钠肽前体和高敏肌钙蛋白I。 | 陈嘉睿(译) 练桂丽((审校) Csengeri D Sprünker NA Di Castelnuovo A Niiranen T Vishram-Nielsen JK Costanzo S S derberg S Jensen SM Vartiainen E Donati MB Magnussen C Camen S Gianfagna F L chen ML Kee F Kontto J Mathiesen EB Koenig W Stefan B de Gaetano G J rgensen T Kuulasmaa K Zeller T Salomaa V Iacoviello L Schnabel RB | 2021 | 中华高血压杂志2021,29,2: | 9 |
| 5 | Intrahepatic endometriosis as differential diagnosis: Case report and literature review显示文摘Intrahepatic endometriosis is one of the rarest forms of atypical endometriosis; only eighteen cases have been reported in the English literature. We describe the case of a 32-year-old woman, who presented with persistent, non-cyclical upper right quadrant abdominal pain, a central liver cyst, and no history of endometriosis. Three years previous, she was diagnosed with an intrahepatic cyst. The lesion progressed and two laparoscopic deroofing-operations were performed, yet the diagnosis of intrahepatic endometriosis was never reached. She presented in our clinic with further progress of the cyst as well as obstruction of the intrahepatic biliary system. The magnetic resonance imaging showed a 9.5 cm × 12 cm, lobulated intrahepatic cyst. We performed an ultrasonic pericystectomy. Immunostaining confirmed intrahepatic endometriosis. Only one of the previously described eighteen patients with intrahepatic endometriosis presented with cyclical pain in the upper right abdominal quadrant accompanying menstruation. This lack of a 'typical' clinic makes it challenging to diagnose extragonadal endometriosis without histopathology. A previous history of endometriosis was described in only twelve cases, thus the diagnosis of this condition should not be limited to patients with a known history of endometriosis. Six of 18 patients were postmenopausal, demonstrating this condition is not limited to women of reproductive age. A preoperative diagnosis was only reached in seven of the previously described cases, highlighting the importance of preoperative biopsies. Yet due to the potential adverse effects, a transhepatic biopsy must be discussed individually. Although rare, intrahepatic endometriosis should always be considered as a differential diagnosis in women with recurrent hepatic cysts, regardless of age or previous medical history. In such cases, histology is essential and a pericystectomy should be performed as standard of care. | Georg Fluegen Frank Jankowiak Luisa Zacarias Foehrding Feride Kroepil Wolfram T Knoefel Stefan A Topp | 2013 | World Journal of Gastroenterology2013,19,29: | 9 |
| 6 | Staging of portal hypertension and portosystemic shunts using dynamic nuclear medicine investigations显示文摘AIM: To explore portal hypertension and portosys-temic shunts and to stage chronic liver disease (CLD) based on the pathophysiology of portal hemodynam-ics. METHODS: Per-rectal portal scintigraphy (PRPS) was performed on 312 patients with CLD and liver angio-scintigraphy (LAS) on 231 of them. The control group included 25 healthy subjects. We developed a new model of PRPS interpretation by introducing two new parameters,the liver transit time (LTT) and the circu-lation time between right heart and liver (RHLT). LTT for each lobe was used to evaluate the early portal hypertension. RHLT is useful in cirrhosis to detect liver areas missing portal in? ow. We calculated the classical per-rectal portal shunt index (PRSI) at PRPS and the hepatic perfusion index (HPI) at LAS. RESULTS: The normal LTT value was 24 ± 1 s. Abnor-mal LTT had PPV = 100% for CLD. Twenty-seven non-cirrhotic patients had LTT increased up to 35 s (median 27 s). RHLT (42 ± 1 s) was not related to liver disease. Cirrhosis could be excluded in all patients with PRSI < 5% (P < 0.01). PRSI > 30% had PPV = 100% for cirrhosis. Based on PRPS and LAS we propose the clas-sifi cation of CLD in 5 hemodynamic stages. Stage 0 is normal (LTT = 24 s,PRSI < 5%). In stage 1,LTT is increased,while PRSI remains normal. In stage 2,LTT is decreased between 16 s and 23 s,whereas PRSI is increased between 5% and 10%. In stage 3,PRSI is increased to 10%-30%,and LTT becomes undetect-able by PRPS due to the portosystemic shunts. Stage 4 includes the patients with PRSI > 30%. RHLT and HPI were used to subtype stage 4. In our study stage 0 had NPV = 100% for CLD,stage 1 had PPV = 100% for non-cirrhotic CLD,stages 2 and 3 represented the transition from chronic hepatitis to cirrhosis,stage 4 had PPV = 100% for cirrhosis. CONCLUSION: LTT allows the detection of early por-tal hypertension and of opening of transhepatic shunts. PRSI is useful in CLD with extrahepatic portosystemic shunts. Our hemodynamic model stages the evolution of portal hypertension and portosystemic shunts. It may be of use in the selection of patients for interferon therapy. | Mircea Dragoteanu Ioan A Balea Liliana A Dina Cecilia D Piglesan Ioana Grigorescu Stefan Tamas Sabin O Cotul | 2008 | World Journal of Gastroenterology2008,14,24: | 7 |
| 7 | Influence of antibiotic-regimens on intensive-care unit-mortality and liver-cirrhosis as risk factor显示文摘AIM: To assess the rate of infection, appropriateness of antimicrobial-therapy and mortality on intensive care unit(ICU). Special focus was drawn on patients with liver cirrhosis.METHODS: The study was approved by the local ethical committee. All patients admitted to the Internal Medicine-ICU between April 1, 2007 and December 31, 2009 were included. Data were extracted retrospectively from all patients using patient charts and electronic documentations on infection, microbiological laboratory reports, diagnosis and therapy. Due to the large hepatology department and liver transplantation center, special interest was on the subgroup of patients with liver cirrhosis. The primary statistical-endpoint was the evaluation of the influence of appropriate versusinappropriate antimicrobial-therapy on in-hospitalmortality.RESULTS: Charts of 1979 patients were available. The overall infection-rate was 53%. Multiresistantbacteria were present in 23% of patients with infection and were associated with increased mortality(p < 0.000001). patients with infection had significantly increased in-hospital-mortality(34% vs 17%, p < 0.000001). Only 9% of patients with infection received inappropriate initial antimicrobial-therapy, no influence on mortality was observed. Independent risk-factors for in-hospital-mortality were the presence of septicshock, prior chemotherapy for malignoma and infection with pseudomonas spp. Infection and mortality-rate among 175 patients with liver-cirrhosis was significantly higher than in patients without liver-cirrhosis. Infection increased mortality 2.24-fold in patients with cirrhosis. patients with liver cirrhosis were at an increased risk to receive inappropriate initial antimicrobial therapy.CONCLUSION: The results of the present study report the successful implementation of early-goal-directed therapy. Liver cirrhosis patients are at increased risk of infection, mortality and to receive inappropriate therapy. Increasing burden are multiresistant-bacteria. | Mireen Friedrich-Rust Beate Wanger Florian Heupel Natalie Filmann Reinhard Brodt Volkhard AJ Kempf Johanna Kessel Thomas A Wichelhaus Eva Herrmann Stefan Zeuzem Joerg Bojunga | 2016 | World Journal of Gastroenterology2016,22,16: | 6 |
| 8 | Parameters affecting different acoustic radiation force impulse applications in the diagnosis of fibrotic liver changes显示文摘AIM: To analyze the virtual touch tissue quantification(VTTQ) and virtual touch imaging quantification(VTIQ) techniques, and identify possible factors that may influence VTTQ and VTIQ measurements.METHODS: One hundred and eighty-six(104 women/82 men) of 323 subjects met the inclusion criteria(age > 18 years, no history of chronic or gastrointestinal disease, body-mass index(BMI) < 30 kg/m2, a fasting period of at least three hours, no history of hepatotoxic pharmaceuticals, alcohol consumption < 24 g/d in men and < 12 g/d in women, and normal findings upon ultrasound examination of the abdomen). Measurements were taken at depths of 50 mm with VTTQ, 15 mm and 25 mm with VTIQ in the right hepatic lobe, and at 15 mm with only VTIQ in the left hepatic lobe. The examiner acquired six measurements per position, thereby giving 24 measurements in total.RESULTS: The 95% confidence intervals of mean were1.23-1.29 m/s for VTTQ and 1.29-1.37 m/s, 1.17-1.23 m/s, and 1.48-1.57 m/s for VTIQ in a depth of 15 mm and 25 mm in the right hepatic lobe and 15 mm in the left hepatic lobe. Only superficial measurements in the right hepatic lobe with the VTIQ method exhibited an effect of age on shear wave velocity. Measurements acquired using the 6C1 probe with the VTTQ method showed no dependence on BMI. By comparison, BMI influenced measurements taken with the VTIQ method using the 9L4 probe in the superficial and deep areas of the right hepatic lobe, as well as in the left hepatic lobe(P = 0.0160, P = 0.0019, P = 0.0173, respectively). Gender influenced measurements at depths of 50 mm with VTTQ and 25 mm with VTIQ in the right hepatic lobe(P = 0.0001, P = 0.0269). Significant differences were found between measurements with the 6C1(VTTQ) and 9L4 probes(VTIQ)(P = 0.0067), between superficial and deep measurements(P < 0.0001), and between the right and left lobes of the liver(P < 0.0001). CONCLUSION: Measurements in the right lobe and deep regions are preferable. Gender differences must be considered. BMI must be considered when assessing VTIQ technology. | Sabrina Galgenmueller Heike Jaeger Wolfgang Kratzer Stefan A Schmidt Suemeyra Oeztuerk Mark M Haenle Richard A Mason Tilmann Graeter | 2015 | World Journal of Gastroenterology2015,21,27: | 5 |
| 9 | A Sustained Virologic Response Is Durable in Patients With Chronic Hepatitis C Treated With Peginterferon Alfa-2a and Ribavirin显示文摘 | Mark G. Swain Ming–Yang Lai Mitchell L. Shiffman W. Graham E. Cooksley Stefan Zeuzem Douglas T. Dieterich Armand Abergel Mário G. Pess?a Amy Lin Andreas Tietz Edward V. Connell Moisés Diago | 2010 | Gastroenterology2010,,5: | 3 |
| 10 | Post-operative computed tomography scan – reliable tool for quality assessment of complete mesocolic excision显示文摘BACKGROUND Quality control in colon cancer surgery is an ongoing debate ever since standardization proved to be highly efficient in improving survival in rectal cancer. Complete mesocolic excision(CME) is widely acclaimed as the new goldstandard in colon cancer resections, thus it is imperative to establish quality criteria of CME in order to make it easily understood and verified by surgeons worldwide. One simple and reproducible tool could be the measurement of arterial stumps postoperatively and a straightforward way to test its reliability is to test it in a comparative study between CME and non-CME surgery.AIM To validate arterial stump measurement as a surgical quality tool by comparing CME with conventional radical colectomies.METHODS This was a retrospective study, carried out on a prospective database. We collected data from two groups of patients, divided according to standard CME with D2 central vascular ligation(group A) and non-standardized surgery(group B). The two groups were compared with regard to the arterial stump length after right-and left-sided colectomies for colon cancer. The actual stump lengths of the ileocolic artery(ICA) and inferior mesenteric artery(IMA) were compared with their theoretical best D2 position of predicted ligation levels(D2 PLLs) for calculating the potential for improvement. Measurements on follow-up computed tomography scans were carried out by three observers. Pathological data were recorded(specimen length, lymph node yield) and correlated with stump length.RESULTS We analysed 58 colectomies. The stump lengths(mean ± SD) in group A were16.97 ± 4.77 mm for ICA and 31.70 ± 15.71 mm for IMA, whereas group B had 49.93 ± 20.29 mm for ICA and 67.24 ± 28.71 mm for IMA. Shorter lengths were obtained in group A, by a mean difference of 35.66 mm(χ~2 = 27.38, P < 0.001),which was significant for all types of colectomies. Except for a 5.85 ± 4.71 mm difference for right colectomies, all the ligations from group A significantly reached their potential height(0.26 ± 12.18 mm from D2 PLL; χ~2 = 0.005, P = 0.944).Apart from three left colectomies, group B failed to reach D2 PLL, by a mean difference of 32.14 ± 26.15 mm(χ~2 = 21.77, P < 0.001). The calculated improvement potentials were significantly shorter in group A than in group B, by a mean of 31.88 mm(χ~2= 22.13, P < 0.001). The large spread of results in group B showed that there is significant variability(P = 0.004) when compared to standard surgery. Significant correlations were found between stump length, specimen length and number of lymph nodes(P = 0.018 and P = 0.008 respectively). No statistical difference was found between observers' measurements(P = 0.866).CONCLUSION Arterial stump monitoring is a significant step in defining surgical quality, as longer stumps contain residual mesocolic tissue and correlate with major prognostic factors. | Cristian Livadaru Stefan Morarasu Tudor Cristian Frunza Florina A Ghitun Elena Florina Paiu-Spiridon Florina Sava Cristina Terinte Dan Ferariu Sorinel Lunca Gabriel Mihail Dimofte | 2019 | World Journal of Gastrointestinal Oncology2019,11,3: | 2 |
| 11 | Pegylated interferon alfa-2b alone or in combination with lamivudine for HBeAg-positive chronic hepatitis B: a randomised trial显示文摘 | Harry LA Janssen Monika van Zonneveld Hakan Senturk Stefan Zeuzem Ulus S Akarca Yilmaz Cakaloglu Christopher Simon Thomas MK So Guido Gerken Robert A de Man Hubert GM Niesters Pieter Zondervan Bettina Hansen Solko W Schalm | 2005 | The Lancet . 2005 (9454)2005,,: | 2 |
| 12 | The 85-kilodalton phosphoprotein(pp85)of human herpesvirus 7 is encoded by open reading frame U14 and localizes to a tegument substructure in virion particles显示文摘 | Stefan A Secchiero P Baechi T | 1997 | J Virol1997,71,: | 2 |
| 13 | Therapeutic strategies for the clinical blockade of IL-6/gp130 signaling显示文摘 | Jones Simon A Scheller Jürgen Rose-John Stefan | 2011 | Journal of Clinical Investigation2011,,9: | 2 |
| 14 | Si-C-N三元系统的新陶瓷相显示文摘固体化学合成的氮化物较其他氧化物研究相对较少,然而过去20年来,该研究领域得到重视。超硬 C3N4相所类似的碳氮化物目前已获得深入研究,相比较而言,Si-C-N化合物的研究依旧比较少。在大气条件下首先合成的三元晶体相为Si(NCN)2和 Si2C2(NCN)。本文回顾了近年来采用高温高压反应工艺合成C-N二元和 Si-C-N三元系材料的研究现状。这类新型材料因具有一些独特的性能,如高硬度、磁性、光电性能,而具有重大研究前景。 | RIEDEL Ralf HORVATH-BORDON Elisabeta KLEEBE Hans-Joachim KROLL Peter MIEHE Gerhard van AKEN Peter A LAUTERBACH Stefan | 2007 | 硅酸盐学报2007,35,8: | 2 |
| 15 | 纳米光子学中的光学涡旋显示文摘在过去的二十年中,携带轨道角动量的涡旋光引起了研究人员的广泛兴趣。涡旋光不仅在光与物质相互作用中扮演着重要角色,而且可极大拓宽光学信息的承载容量。与此同时,纳米科技的发展使得纳米光子学成为一个新兴学科,开辟了利用纳米结构和器件对光进行调控的新途径。当纳米技术和涡旋光相结合时,衍生出许多新的思路和概念。本文回顾和总结了基于纳米光子学的涡旋光产生、探测及其应用,并对该研究领域的未来进行了展望。 | 李晨昊 Maier Stefan A 任浩然 | 2021 | 中国光学2021,14,4: | 2 |
| 16 | Do you want to participate in a clinical study as a healthy control?-Risk or benefit?显示文摘A healthy woman volunteered to participate as 'healthy control' in a study.An increased level of procalcitonin(PCT) was detected and remained elevated on follow-up measurements.As calcitonin levels were elevated as well,thyroid ultrasound was performed which revealed nodes in both thyroid lobes,one of them showing metabolic activity in positron emission tomography-computed tomography scan.To exclude a malignant thyroid cancer despite the negative findings in a fine needle aspiration the patient underwent thyroidectomy and a medullary thyroid carcinoma(MTC) was detected in the right lobe.MTC is a rare endocrine tumor with a poor prognosis once having spread,therefore early detection remains a priority for the outcome.Screening parameter is serum calcitonin,in absence of infection the pro-hormone PCT can be used as a screening parameter as well with high sensitivity. | Hanna Giessen Christian A Nebiker Matthias Bruehlmeier Stefan Spreitzer Beat Mueller Philipp Schuetz | 2017 | World Journal of Clinical Cases2017,5,12: | 2 |
| 17 | Prospective evaluation of the short access cholangioscopy for stone clearance and evaluation of indeterminate strictures显示文摘BACKGROUND: Peroral cholangioscopy facilitates diagnosis and therapy of biliary disorders. This study prospectively evaluated a new short access cholangioscopy. METHODS: Consecutive patients were included as follows: difficult stones(group 1) underwent cholangioscopy with electrohydraulic lithotripsy and indeterminate biliary strictures(group 2) were evaluated with macroscopic assessment and cholangioscopy guided biopsy sampling. We evaluated the complete stone clearance rate(group 1) and diagnostic accuracy(group 2). Follow-up was performed over a median of 13 and 16 months, respectively.RESULTS: Group 1(n=21): complete stone clearance defined as lack of stones in cholangiography and stone removal during cholangioscopy was achieved in 15(71.4%) patients. Clinical stone clearance defined as lack of symptoms, laboratory abnormalities and hospital visits during follow-up, irrespective of stone clearance was evident in 17(81.0%) patients. One serious adverse event occurred(bile duct perforation). Group 2(n=28): malignancy was confirmed in 15 patients. Sensitivity, specificity and diagnostic accuracy of cholangioscopy were 85.7%, 75.0% and 80.7%, respectively. Sensitivity, specificity and diagnostic accuracy of biopsies were 54.5%, 100.0% and 72.2%, respectively. No serious adverse events occurred, and one patient was lost to follow-up.CONCLUSIONS: The novel system enabled complex stone treatment and biliary stricture diagnosis. Cholangioscopy outperformed direct biopsy regarding characterization of indeterminate strictures. | Athanasios D Sioulas Muhammad A El-Masry Stefan Groth Guido Schachschal Mario Anders Thomas Rosch Ulrike Denzer | 2017 | Hepatobiliary & Pancreatic Diseases International2017,16,1: | 2 |
| 18 | Hypoxia-induced tumour angiogenic pathway in head and neck cancer: An in vivo study显示文摘 | Kyzas PA Stefanou D Batistatou A | 2005 | Cancer Lett2005,225,2: | 1 |
| 19 | Sulfated zirconia nanoparticles synthesized in reverse microemulsion: preparation and catalytic propertise 显示文摘 | HOLGER A STEFAN K | 2002 | Langmuir2002,18,20: | 1 |
| 20 | Ac impedance analysis of bifunctinal air electrodes for metal-air batteries 显示文摘 | HAJIME A STEFAN M OTTO H | 2000 | J Electrochem Soc2000,147,: | 1 |