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1Unusual presentations of eosinophilic gastroenteritis:Case series and review of literature显示文摘Eosinophilic gastroenteritis (EG) is an uncommon disease characterized by focal or diffuse eosinophilic infiltration of the gastrointestinal tract, and is usually associated with dyspepsia, diarrhea and peripheral eosinophilia. Diffuse gastrointestinal tract and colonic involvement are uncommon. The endoscopic appearance may vary from normal to mucosal nodularity and ulceration. Gastrointestinal obstruction is unusual and is associated with predominantly muscular disease. We present five unusual cases of EG associated with gastric outlet and duodenal obstruction. Two cases presented with acute pancreatitis and one had a history of pancreatitis. Four cases responded well to medical therapy and one had recurrent gastric outlet obstruction that required surgery. Four out of the five cases had endoscopic and histological evidence of esophagitis and two had colitis. Two patients had ascites. These cases reaffirm that EG is a disorder with protean manifestations and may involve the entire gastrointestinal tract. Gastric outlet and/or small bowel obstruction is an important though uncommon presentation of EG. It may also present as esophagitis, gastritis with polypoid lesions, ulcers or erosions, colitis and pancreatitis and may mimic malignancy.Rafiq A Sheikh Thomas P Prindiville R Erick Pecha Boris H Ruebner 2009World Journal of Gastroenterology2009,15,17:43
2冠状动脉内影像学临床应用专家共识(第一部分):对冠状动脉介入治疗的指导与优化显示文摘欧洲心血管介入协会(EAPCI)专家组系统总结了血管内超声(IVUS)和光学相干断层成像(OCT)这两种血管内影像学检查临床应用指征的现有证据,提供了关于IVUS和OCT指导经皮冠状动脉介入治疗(PCI)的应用价值,并明确了最可能从腔内影像学指导的介入治疗中获得临床收益的患者或病变类型,同时详细论述了PCI前如何使用IVUS或OCT优化支架尺寸(支架长度和直径)和手术策略的选择。此外,专家推荐对支架失败(支架内再狭窄或支架内血栓形成)的患者应常规进行冠状动脉内影像学检查,并首选OCT。最后,重点论述了IVUS和OCT在指导PCI和评估支架失败两个方面的优势和局限性,并对未来需要深入研究的领域进行了展望。Lorenz Raber Gary S Mintz Konstantinos C Koskinas Thomas W Johnson Niels R Holm Yoshinubo Onuma Maria D Radu Michael Joner Bo Yu Haibo Jia Nicolas Meneveau Jose M.de la Torre Hemandez Javier Escaned Jonathan Hill Francesco Prati Antonio Colombo Carlo di Mario Evelyn Regar Davide Capodanno William Wijns Robert A Byme Giulio Guagliumi 2019中华心血管病杂志2019,47,1:17
3睾酮和良性前列腺增生症显示文摘由于医患双方对于男性迟发性腺功能减退症状的警觉,使得近期针对此类患者的睾酮治疗增多。但是考虑到睾酮治疗对前列腺的影响,尤其可能增加前列腺癌发病风险,促进了该方面的研究进展。出乎意料的是大量的回顾性或小样本随机研究提示睾酮治疗或可改善男性下尿路症状。虽然此改善的确切机理仍在争论中,但或许和代谢综合征密切相关。对于临床医生,这些研究的结果虽然让人期待,但是缺乏高等级证据支持。因此在诊断迟发性腺功能减退症或考虑睾酮治疗前,仍需对患者进行包括病史、体检和睾酮测量在内的全面临床检查。睾酮补充治疗可能导致尿潴留和加重下尿路症状,这些产品说明上标注的风险依然存在,应该在用药前向患者解释说明。Thomas R Jarvis Bilal Chughtai Steven A Kaplan 2015Asian Journal of Andrology2015,17,2:7
4双峰分布颗粒体系的多角度动态光散射数据反演(英文)显示文摘采用多角度动态光散射和加权正则化反演方法,对4组模拟的双峰分布颗粒体系(100/600nm,200/600nm,300/600nm和350/600nm)分别选取1、3、6和10个散射角进行测量.粒度反演结果表明,采用加权正则化方法反演双峰颗粒体系的多角度动态光散射测量数据,可获得峰值位置比小于2∶1且含有大粒径(>350nm)颗粒的双峰颗粒粒度分布.采用标准聚苯乙烯乳胶颗粒进行实测的结果验证了这一结论.得到含大粒径颗粒的双峰粒度分布反演结果的原因在于,多角度动态光散射能提供更多的大粒径颗粒的粒度信息,加权正则化反演方法能减少测量数据中的噪声,因而多角度动态光散射测量数据的加权反演能实现峰值位置比小于2∶1且含有大粒径颗粒的双峰颗粒体系的测量.徐敏 申晋 朱新军 THOMAS John C CLEMENTI Luis A VEGA Jorge R 2017光子学报2017,46,2:7
5伴炎性肌纤维母细胞肿瘤样特征的去分化脂肪肉瘤显示文摘Lucas D R Shukla A Thomas D G 李岩(摘译 ) 张仁亚(审校) 2010临床与实验病理学杂志2010,26,5:6
6Early combined immunosuppression or conventional management in patients with newly diagnosed Crohn’s disease: an open randomised trial显示文摘Geert D’Haens Filip Baert Gert van Assche Philip Caenepeel Philippe Vergauwe Hans Tuynman Martine De Vos Sander van Deventer Larry Stitt Allan Donner Severine Vermeire Frank J Van De Mierop Jean-Charles R Coche Janneke van der Woude Thomas Ochsenkühn Ad A 2008The Lancet2008,,9613:5
7Colonoscopy surveillance for high risk polyps does not always prevent colorectal cancer显示文摘AIM To determine the frequency and risk factors for colorectal cancer(CRC) development among individuals with resected advanced adenoma(AA)/traditional serrated adenoma(TSA)/advanced sessile serrated adenoma(ASSA). METHODS Data was collected from medical records of 14663 subjects found to have AA, TSA, or ASSA at screening or surveillance colonoscopy. Patients with inflammatory bowel disease or known genetic predisposition for CRC were excluded from the study. Factors associated with CRC developing after endoscopic management of high risk polyps were calculated in 4610 such patients who had at least one surveillance colonoscopy within 10 years following the original polypectomy of the incident advanced polyp. RESULTS84/4610(1.8%) patients developed CRC at the polypectomy site within a median of 4.2 years(mean 4.89 years), and 1.2%(54/4610) developed CRC in a region distinct from the AA/TSA/ASSA resection site within a median of 5.1 years(mean 6.67 years). Approximately, 30%(25/84) of patients who developed CRC at the AA/TSA/ASSA site and 27.8%(15/54) of patients who developed CRC at another site had colonoscopy at recommended surveillance intervals. Increasing age; polyp size; male sex; right-sided location; high degree of dysplasia; higher number of polyps resected; and piecemeal removal were associated with an increased risk for CRC developmentat the same site as the index polyp. Increasing age; right-sided location; higher number of polyps resected and sessile endoscopic appearance of the index AA/TSA/ASSA were significantly associated with an increased risk for CRC development at a different site. CONCLUSION Recognition that CRC may develop following AA/TSA/ASSA removal is one step toward improving our practice efficiency and preventing a portion of CRC related morbidity and mortality.Mohamad A Mouchli Lidia Ouk Marianne R Scheitel Alisha P Chaudhry Donna Felmlee-Devine Diane E Grill Shahrooz Rashtak Panwen Wang Junwen Wang Rajeev Chaudhry Thomas C Smyrk Ann L Oberg Brooke R Druliner Lisa A Boardman 2018World Journal of Gastroenterology2018,24,8:5
8Relevance of MUC1 mucin variable number of tandem repeats polymorphism in H pylori adhesion to gastric epithelial cells显示文摘AIM:To evaluate the influence of MUC1 mucin variable number of tandem repeats (VNTR) variability on H pylori adhesion to gastric cells. METHODS: Enzyme linked immunosorbent assay (ELISA)-based adhesion assays were performed to measure the adhesion of different H pylori strains (HP26695 and HPTx30a) to gastric carcinoma cell lines (GP202 and MKN45) and GP202 clones expressing recombinant MUC1 with different VNTR lengths. RESULTS: Evaluation of adhesion results shows that H pylori pathogenic strain HP26695 has a significantly higher (P < 0.05) adhesion to all the cell lines and clones tested, when compared to the non-pathogenic strain HPTx30a. Bacteria showed a significantly higher (P < 0.05) adhesion to the GP202 cell line, when compared to the MKN45 cell line. Furthermore, both strains showed a significantly higher (P < 0.05) adhesion to GP202 clones with larger MUC1 VNTR domains. CONCLUSION: This work shows that MUC1 mucin variability conditions H pylori binding to gastric cells. The extent of bacterial adhesion depends on the size of theMUC1 VNTR domain. The adhesion is further dependent on bacterial pathogenicity and the gastric cell line. MUC1 mucin variability may contribute to determine H pylori colonization of the gastric mucosa.Natália R Costa Nuno Mendes Nuno T Marcos Celso A Reis Thomas Caffrey Michael A Hollingsworth Filipe Santos-Silva 2008World Journal of Gastroenterology2008,14,9:4
9三维坐标系测量数据与CAD模型的比对(英文)显示文摘MEMS轮廓检验在实质上通常都是三维的,而所获取的3D点云数据常常没有被充分利用.这种次优化的应用也正是由3D数据和3D模型的比对过程中存在的难点所引发的.给出了旨在减小3D数据分析负担的各种表达公式和接口定义的系统方法.对于中等尺度和大尺度的制品,这种系统方法均可应用.提出了分析三维坐标测量数据的计量学方法及相应的表达公式.这套公式提供了一种用于坐标测量过程分析的统一计算方法.也就是说这种计算系统是模块式的,把坐标系统定位和几何参数分析同等对待,包括除刚体运动以外的各种坐标变换.提出了以闭型偏差等式形式给出的各种几何学分析公式.另外,提出了旨在分析自由形状表面的各种专门公式,同时给出了这一处理过程的一个示例.CLAUDET A Andre KURFESS R Thomas 2005纳米技术与精密工程2005,3,4:4
10Nat 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
11Adenoma detection with cap-assisted colonoscopy versus regular colonoscopy: a randomised controlled trial显示文摘Thomas R de Wijkerslooth Esther M Stoop Patrick M Bossuyt Elisabeth M H Mathus-Vliegen Jan Dees Kristien M A J Tytgat Monique E van Leerdam Paul Fockens Ernst J Kuipers Evelien Dekker 2012Gut2012,,10:3
12Shoot and root traits in drought tolerant maize(Zea mays L.) hybrids显示文摘This study aimed to investigate the differences in shoot and root traits, and water use and water use efficiency(WUE) in drought tolerant(DT) maize(Zea mays L.) hybrids under full and deficit irrigated conditions. A two-year greenhouse study was conducted with four hybrids(one conventional hybrid, 33D53AM, two commercial DT hybrids, P1151 AM, N75H, and an experimental hybrid, Exp HB) grown under two water regimes(I_(100) and I_(50), referring to 100 and 50% of evapotranspiration requirements). Under water stress, the hybids P1151 AM, N75, and Exp HB showed more drought tolerance and had either greater shoot dry weight or less dry weight reduction than the conventional hybrid(33 D53 AM). However, these three hybrids responded to water stress using different mechanisms. Compared with the conventional hybrid, the two commercial DT hybrids(P1151 AM and N75H) had a smaller leaf area, shoot dry weight, and root system per plant. As a result, these hybrids used less water but had a higher WUE compared with the conventional hybrid. In contrast, the experimental hybrid(ExpHB) produced more shoot biomass by silking stage at both irrigation levels than all other hybrids, but it had relatively lower WUE. The hybrids demonstrated different drought response mechanisms that may require different irrigation management strategies. More investigation and validation are needed under field conditions and in different soil types.ZHAO Jin XUE Qing-wu Kirk E Jessup HOU Xiao-bo HAO Bao-zhen Thomas H Marek XU Wen-wei Steven R Evett Susan A O'Shaughnessy David K Brauer 2018Journal of Integrative Agriculture2018,17,5:3
13Th1 cytokines promote T-cell binding to antigen-presenting cells via enhanced hyaluronan production and accumulation at the immune synapse显示文摘Hyaluronan(HA)production by dendritic cells(DCs)is known to promote antigen presentation and to augment T-cell activation and proliferation.We hypothesized that pericellular HA can function as intercellular‘glue’directly mediating T cell–DC binding.Using primary human cells,we observed HA-dependent binding between T cells and DCs,which was abrogated upon pre-treatment of the DCs with 4-methylumbelliferone(4-MU),an agent which blocks HA synthesis.Furthermore,T cells regulate HA production by DCs via T cell-derived cytokines in a T helper(Th)subset-specific manner,as demonstrated by the observation that cell-culture supernatants from Th1 but not Th2 clones promote HA production.Similar effects were seen upon the addition of exogenous Th1 cytokines,IL-2,interferon c(IFN-c)and tumor necrosis factor a(TNF-a).The critical factors which determined the extent of DC–T cell binding in this system were the nature of the pre-treatment the DCs received and their capacity to synthesize HA,as T-cell clones which were pre-treated with monensin,added to block cytokine secretion,bound equivalently irrespective of their Th subset.These data support the existence of a feedforward loop wherein T-cell cytokines influence DC production of HA,which in turn affects the extent of DC–T cell binding.We also document the presence of focal deposits of HA at the immune synapse between T-cells and APC and on dendritic processes thought to be important in antigen presentation.These data point to a pivotal role for HA in DC–T cell interactions at the IS.Paul L Bollyky Stephen P Evanko Rebecca P Wu Susan Potter-Perigo S Alice Long Brian Kinsella Helena Reijonen Kelly Guebtner Brandon Teng Christina K Chan Kathy R Braun John A Gebe Gerald T Nepom Thomas N Wight 2010Cellular & Molecular Immunology2010,7,3:3
14Cholangiocarcinoma显示文摘Shahid A Khan Howard C Thomas Brian R Davidson Simon D Taylor-Robinson 2005The Lancet . 2005 (9493)2005,,:3
15Role of pancreatography in the endoscopic management of encapsulated pancreatic collections-review and new proposed classification显示文摘Pancreatic fluids collections are local complications related to acute or chronic pancreatitis and may require intervention when symptomatic and/or complicated.Within the last decade,endoscopic management of these collections via endoscopic ultrasound-guided transmural drainage has become the gold standard treatment for encapsulated pancreatic collections with high clinical success and lower morbidity compared to traditional surgery and percutaneous drainage.Proper understanding of anatomic landmarks,including assessment of the main pancreatic duct and any associated lesions–such as disruptions and strictures-are key to achieving clinical success,reducing the need for reintervention or recurrence,especially in cases with suspected disconnected pancreatic duct syndrome.Additionally,proper review of imaging and anatomic landmarks,including collection location,are pivotal to determine type and size of pancreatic stenting as well as approach using long-term transmural indwelling plastic stents.Pancreatography to adequately assess the main pancreatic duct may be performed by two methods:Either non-invasively using magnetic resonance cholangiopancreatography or endoscopically via retrograde cholangiopancreatography.Despite the critical need to understand anatomy via pancrea tography and assess the main pancreatic duct,a standardized approach or uniform assessment strategy has not been described in the literature.Therefore,the aim of this review was to clarify the role of pancreatography in the endoscopic management of encapsulated pancreatic collections and to propose a new classification system to aid in proper assessment and endoscopic treatment.Igor Mendonca Proença Marcos Eduardo Lera dos Santos Diogo Turiani Hourneaux de Moura Igor Braga Ribeiro Sergio Eiji Matuguma Spencer Cheng Thomas R McCarty Epifanio Silvino do Monte Junior Paulo Sakai Eduardo Guimaraes Hourneaux de Moura 2020World Journal of Gastroenterology2020,26,45:3
16Treatment of relapsing autoimmune pancreatitis with immunomodulators and rituximab: the Mayo Clinic experience显示文摘Phil A Hart Mark D Topazian Thomas E Witzig Jonathan E Clain Ferga C Gleeson Robin R Klebig Michael J Levy Randall K Pearson Bret T Petersen Thomas C Smyrk Aravind Sugumar Naoki Takahashi Santhi S Vege Suresh T Chari 2013Gut2013,,11:2
17Long-term outcomes of autoimmune pancreatitis: a multicentre, international analysis显示文摘Phil A Hart Terumi Kamisawa William R Brugge Jae Bock Chung Emma L Culver László Czakó Luca Frulloni Vay Liang W Go Thomas M Gress Myung-Hwan Kim Shigeyuki Kawa Kyu Taek Lee Markus M Lerch Wei-Chih Liao Matthias L?hr Kazuichi Okazaki Ji Kon Ryu Nicolas Sc 2013Gut2013,,12:2
18Treatment of relapsing autoimmune pancreatitis with immunomodulators and rituximab: the Mayo Clinic experience显示文摘Phil A Hart Mark D Topazian Thomas E Witzig Jonathan E Clain Ferga C Gleeson Robin R Klebig Michael J Levy Randall K Pearson Bret T Petersen Thomas C Smyrk Aravind Sugumar Naoki Takahashi Santhi S Vege Suresh T Chari 2013Gut2013,,11:2
19Morbidity and mortality in compensated cirrhosis type C: A retrospective follow-up study of 384 patients显示文摘G Fattovich G Giustina F Degos F Tremolada G Diodati P Almasio F Nevens A Solinas D Mura JT Brouwer H Thomas C Njapoum C Casarin P Bonetti P Fuschi J Basho A Tocco A Bhalla R Galassini F Noventa SW Schalm G Realdi 1997Gastroenterology1997,,2:2
20Cholangiocarcinoma显示文摘Shahid A Khan Howard C Thomas Brian R Davidson Simon D Taylor-Robinson 2005The Lancet2005,,9493:2
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