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91篇 您的检索式:作者名="Stephane David"
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1Immunopathogenesis of inflammatory bowel disease显示文摘Crohn’s disease and ulcerative colitis are chronic relapsing immune mediated disorders that results from an aberrant response to gut luminal antigen in genetically susceptible host. The adaptive immune response that is then triggered was widely considered to be a T-helper-1 mediated condition in Crohn’s disease and T-helper-2 mediated condition in ulcerative colitis. Recent studies in animal models, genome wide association, and basic science has provided important insights in in the immunopathogenesis of inflammatory bowel disease, one of which was the characterization of the interleukin-23/Th-17 axis.David Q Shih Stephan R Targan 2008World Journal of Gastroenterology2008,14,3:44
2Long-term follow-up after complete ablation of Barrett's esophagus with argon plasma coagulation显示文摘AIM: To report the long-term outcome of patients after complete ablation of non-neoplastic Barrett's esophagus (BE) with respect to BE relapse and development of intraepithelial neoplasia or esophageal adenocarcinoma.METHODS: In 70 patients with histologically proven nonneoplastic BE, complete BE ablation was achieved by argon plasma coagulation (APC) and high-dose proton pump inhibitor therapy (120 mg omeprazole daily). Sixty-six patients (94.4%) underwent further surveillance endoscopy. At each surveillance endoscopy four-quadrant biopsies were taken from the neo-squamous epithelium at 2 cm intervals depending on the pre-treatment length of BE mucosa beginning at the neo-Z-line, and from any endoscopically suspicious lesion.RESULTS: The median follow-up of 66 patients was 51 mo (range 9-85 mo) giving a total of 280.5 patient years.A mean of 6 biopsies were taken during surveillance endoscopies. In 13 patients (19.7%) tongues or islands suspicious for BE were found during endoscopy. In 8 of these patients (12.1%) non-neoplastic BE relapse was confirmed histologically giving a histological relapse rate of 3% per year. In none of the patients, intraepithelial neoplasia nor an esophageal adenocarcinoma was detected.Logistic regression analysis identified endoscopic detection of islands or tongues as the only positive predictor of BE relapse (P = 0.0004).CONCLUSION: The long-term relapse rate of nonneoplastic BE following complete ablation with high-power APC is low (3% per year).Ahmed Madisch Stephan Miehike Ekkehard Bayerdoerffer Birgit Wiedemann David Antos Anke Sievert Michael Vieth Manfred Stolte Heinrich Schulz 2005World Journal of Gastroenterology2005,11,8:14
3Metastatic type 1 gastric carcinoid:A real threat or just a myth?显示文摘AIM:To describe disease characteristics and treatment modalities in a group of rare patients with metastatic gastric carcinoid type 1(GCA1).METHODS:Information on clinical,biochemical,radiological,histopathological findings,the extent of the disease,as well as the use of different therapeutic modalities and the long-term outcome were recorded.Patients’data were assessed at presentation,and thereafter at 6 to 12 monthly intervals both clinically and biochemically,but also endoscopically and histopathologically.Patients were evaluated for the presence of specific symptoms;the presence of autoimmune disorders and the presence of other gastrointestinal malignancies in other family members were also recorded.The evaluation of response to treatment was defined using established WHO criteria.RESULTS:We studied twenty consecutive patients with a mean age of 55.1 years.The mean follow-up period was 83 mo.Twelve patients had regional lymph node metastases and 8 patients had liver metastases.The primary tumor mean diameter was 20.13±10.83mm(mean±SD).The mean Ki-67 index was 6.8%±11.2%.All but one patient underwent endoscopic or surgical excision of the tumor.The disease was stable in all but 3 patients who had progressive liver disease.All patients remained alive during the follow-up period.CONCLUSION:Metastatic GCA1 carries a good overall prognosis,being related to a tumor size of≥1 cm,an elevated Ki-67 index and high serum gastrin levels.Simona Grozinsky-Glasberg Dimitrios Thomas Jonathan R Strosberg Ulrich-Frank Pape Stephan Felder Apostolos V Tsolakis Krystallenia I Alexandraki Merav Fraenkel Leonard Saiegh Petachia Reissman Gregory Kaltsas David J Gross 2013World Journal of Gastroenterology2013,19,46:11
4国际糖尿病足工作组:糖尿病足溃疡分类指南——《国际糖尿病足工作组:糖尿病足防治国际指南(2019)》的一部分显示文摘国际糖尿病足工作组(IWGDF)自1999年以来一直以循证为基础发布糖尿病足病的预防和管理指南。本文中针对日常临床工作中糖尿病足溃疡的分类提出了新指南,并对既有的分类进行了综述。新指南只对现患糖尿病足溃疡进行分类,不包括用于定义未来溃疡风险的分类系统。本指南的制定是基于对现有文献的综述以及专家对最大程度影响临床结局的8个关键因素的鉴定。分类级别是根据关键因素的数量、内部和外部有效性验证以及使用意向而制定的。判定分类评分的关键因素有3种:患者相关的因素(终末期肾衰竭)、肢体相关的因素(周围动脉病变和保护性感觉丧失)和溃疡相关的因素(面积、深度、部位、单发或多发以及感染)。特殊分类系统要考虑以下5种临床情况:①卫生专业人员之间交流;②预测单个溃疡预后;③对个案临床决策的辅助;④伤口评估,有感染或无感染及周围动脉病变(评估灌注及血管重建的潜在益处);⑤用于地方、区域或国家人群结局的稽查。指南推荐:①医务人员之间交流使用SINBAD系统。②无适用于预测个体溃疡预后的分类。③感染的评估采用美国传染病学会/国际糖尿病足工作组(IDSA/IWGDF)分类系统。④评估灌注及血管重建的潜在获益使用创面、缺血、足感染(WIfI)系统。⑤人群结局的稽查使用SINBAD系统。Matilde Monteiro-Soares David Russell Edward J Boyko William Jeffcoate Joseph L Mills Stephan Morbach Fran Game 王爱红(译) 冉兴无(审校) 2019感染.炎症.修复2019,20,4:10
5Could the number of CT angiograms be reduced in emergency department patients suspected of pulmonary embolism?显示文摘BACKGROUND:This study was undertaken to identify the prevalence of pulmonary embolism(PE) in the emergency department(ED) of an urban teaching hospital and also to test a Bayesian model in estimating the number of CT pulmonary angiography(CTA) expected to be performed in an emergency department.METHODS:The data for this study was obtained through a retrospective review of electronic medical records for all ED patients suspected of PE who underwent chest CTA or ventilation perfusion scanning(V/Q) between 2009 and 2010.The data is presented as means and standard deviation for continuous variables and percentages with 95%confidence intervals(95%CI) for proportions.The prevalence of PE was used as pre-test probability in the Bayesian model.Post-test probability was obtained using a Fagan nomogram and likelihood ratios for CTA.RESULTS:A total of 778 patients(560 females) with mean age of 50 years(range 18-98 years)were enrolled(98.3%underwent chest CTA and 1.7%underwent V/Q scan).A total of 69 patients had PE,rendering an overall prevalence of 8.9%(95%CI,7.1%to 11.1%) for PE.We calculated that132 CTA's per year could be avoided in our institution,without compromising safe exclusions of PE(keeping post-test probability of PE below 2%).CONCLUSIONS:Despite differences in our patient populations and /or study designs,the prevalence of PE in our institution is about average compared to other institutions.Our proposed model for calculating redundant chest CTA is simple and can be used by institutions to identify overuse of CTA.Zehtabchi Shahriar Rinnert Stephan Malhotra Shweta Subramanian Arun Timberger Mathew Patel Brijal Toro David Hassan Khaled Sinert Richard 2012World Journal of Emergency Medicine2012,3,3:7
6Review of the impact of heat stress on reproductive performance of sheep显示文摘Heat stress significantly impairs reproduction of sheep,and under current climatic conditions is a significant risk to the efficiency of the meat and wool production,with the impact increasing as global temperatures rise.Evidence from field studies and studies conducted using environmental chambers demonstrate the effects of hot temperatures(≥32℃)on components of ewe fertility(oestrus,fertilisation,embryo survival and lambing)are most destructive when experienced from 5 d before until 5 d after oestrus.Temperature controlled studies also demonstrate that ram fertility,as measured by rates of fertilisation and embryo survival,is reduced when mating occurs during the period 14 to 50 d post-heating.However,the contribution of the ram to heat induced reductions in flock fertility is difficult to determine accurately.Based primarily on temperature controlled studies,it is clear that sustained exposure to high temperatures(≥32℃)during pregnancy reduces lamb birthweight and will,therefore,decrease lamb survival under field conditions.It is concluded that both ewe and ram reproduction is affected by relatively modest levels of heat stress(≥32℃)and this is a concern given that a significant proportion of the global sheep population experiences heat stress of this magnitude around mating and during pregnancy.Despite this,strategies to limit the impacts of the climate on the homeothermy,behaviour,resource use and reproduction of extensively grazed sheep are limited,and there is an urgency to improve knowledge and to develop husbandry practices to limit these impacts.William H.E.J.van Wettere Karen L.Kind Kathryn L.Gatford Alyce M.Swinbourne Stephan T.Leu Peter T.Hayman Jennifer M.Kelly Alice C.Weaver David O.Kleemann Simon K.Walker 2021Journal of Animal Science and Biotechnology2021,12,3:6
7The MRE11 GAR motif regulates DNA double-strand break processing and ATR activation显示文摘MRE11/RAD50/NBS1 建筑群是很快招募到 DNA 双海滨裂缝(DSB ) 的主要传感器。MRE11 被知道是由在它的 glycine-arginine-rich (长嘴硬鳞鱼) 以内的 PRMT1 的精氨酸 methylated 主题。在这研究,我们报导在 GAR 主题与离氨酸代替精氨酸并且产生 MRE11 缺乏 methylated 精氨酸的 RK 蛋白质。Mre11 RK/RK 老鼠对 γ 过分敏感;照耀(红外) 和从这些老鼠的房间显示了房间周期检查点缺点和染色体不稳定性。而且, Mre11 RK/RK MEF 展出了在 RPA 和 RAD51 的招募表明缺点和缺陷到损坏地点的 ATR/CHK1。M RK 形成的 RN 建筑群并且对 DNA 损坏并且通常的地点局部性响应红外激活 ATM 小径。M RK RN 建筑群在为响应红外在 vivo 观察的损害 DNA 结束切除术和 ATR 激活负责的 vitro 展出了 exonuclease 和 DNA 有约束力的缺点。我们的调查结果在 DSB 修理为 MRE11 长嘴硬鳞鱼主题的关键角色提供基因证据,并且在 MRE11 长嘴硬鳞鱼表明在 translational 以后修正之间的一个机械学的连接主题并且 DSB 处理,以及发信号的 ATR/CHK1 检查点。Zhenbao Yu Gillian Vogel Yan Coulombe Danielle Dubeau Elizabeth Spehalski Josee Hebert David O Ferguson Jean Yves Masson Stephane Richard 2012Cell Research2012,22,2:5
8Clinical End Points in Coronary Stent Trials: A Case for Standardized Definitions显示文摘Donald E. Cutlip Stephan Windecker Roxana Mehran Ashley Boam David J. Cohen Gerrit-Anne van Es P Gabriel Steg Marie-angèle Morel Laura Mauri Pascal Vranckx Eugene McFadden Alexandra Lansky Martial Hamon Mitchell W. Krucoff Patrick W. Serruys 2007Circulation2007,,17:4
9A case of steroid-dependent myeloid granulocytic sarcoma masquerading as Crohn's disease显示文摘Small bowel tumors and Crohn's disease are common causes of small bowel obstruction.Early stage neoplasms can easily be mistaken for Crohn's disease.Therefore,thorough work-ups including imaging studies and endoscopic evaluation with biopsies are critical for accurate diagnosis.Here we report a case of an otherwise healthy female with progressive onset of multiple,recurrent obstructive symptoms secondary to terminal ileal narrowing who was referred for management of steroid-dependent Crohn's disease.After thorough evaluation,the diagnosis was revised to myeloid granulocytic sarcoma involving the terminal ileum.In this case,a delay in diagnosis can be detrimental for prognosis,as myeloid granulocytic sarcoma is highly predictive of underlying acute myeloid leukemia and needs urgent referral for chemotherapy and/or resection.Lola Y Kwan Stephan R Targan David Q Shih 2011World Journal of Gastroenterology2011,17,19:3
10Chimeric Antigen Receptor Therapy for Cancer显示文摘David M. Barrett Nathan Singh David L. Porter Stephan A. Grupp Carl H. June 2014Annual Review of Medicine2014,,:3
11Is Ulnar Nerve Transposition Beneficial During Open Reduction Internal Fixation of Distal Humerus Fractures?显示文摘Ryan C Chen David J Harris Stephane Leduc Joseph J Borrelli Paul Tornetta William M Ricci 2010Journal of Orthopaedic Trauma2010,,7:2
1210 PW peak power femtosecond laser pulses at ELI-NP显示文摘We report on the generation and delivery of 10.2 PW peak power laser pulses,using the High Power Laser System at the Extreme Laser Infrastructure–Nuclear Physics facility.In this work we demonstrate for the first time,to the best of our knowledge,the compression and propagation of full energy,full aperture,laser pulses that reach a power level of more than 10 PW.Christophe Radier Olivier Chalus Mathilde Charbonneau Shanjuhan Thambirajah Guillaume Deschamps Stephane David Julien Barbe Eric Etter Guillaume Matras Sandrine Ricaud Vincent Leroux Caroline Richard François Lureau Andrei Baleanu Romeo Banici Andrei Gradinariu Constantin Caldararu Cristian Capiteanu Andrei Naziru Bogdan Diaconescu Vicentiu Iancu Razvan Dabu Daniel Ursescu Ioan Dancus Calin Alexandru Ur Kazuo ATanaka Nicolae Victor Zamfir 2022High Power Laser Science and Engineering2022,10,3:2
13Insights into IBD pathogenesis显示文摘David Q. Shih Stephan R. Targan 2009Current Gastroenterology Reports2009,,6:2
14Noninvasive coronary artery imaging:magnetic resonance angiography and multidetector computed tomography angiography显示文摘David A Stephan A Matthew B 2008Circulation2008,118,5:1
15Mechanisms Underlying Selective Neuronal Tracking of Attended Speech at a “Cocktail Party”显示文摘Elana M. Zion Golumbic Nai Ding Stephan Bickel Peter Lakatos Catherine A. Schevon Guy M. McKhann Robert R. Goodman Ronald Emerson Ashesh D. Mehta Jonathan Z. Simon David Poeppel Charles E. Schroeder 2013Neuron2013,,5:1
16Aggressive Behavior in Patients With Stroke: Association With Psychopathology and Results of Antidepressant Treatment on Aggression显示文摘Keen-Loong Chan Antonio Campayo David J. Moser Stephan Arndt Robert G. Robinson 2006Archives of Physical Medicine and Rehabilitation2006,,6:1
17Recent advances in IBD pathogenesis: Genetics and immunobiology显示文摘David Q. Shih Stephan R. Targan Dermot McGovern 2008Current Gastroenterology Reports2008,,6:1
18Silicon Complexity for Maximum Likelihood MIMO Detection Using Spherical Decoding显示文摘David Garrett Linda Davis Stephan ten Brink 2004IEEE JOURNAL OF SOLID-STATE CIRCUITS2004,9,39:1
19Autologous and Allogeneic Cellular Therapies for High-risk Pediatric Solid Tumors显示文摘David Barrett Jonathan D. Fish Stephan A. Grupp 2010The Pediatric Clinics of North America2010,,1:1
20Multi-dimensional density estimation显示文摘David W Scott Stephan R Sain Preprint submitted to Elsevier Science0,,:1
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