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    题名 作者 年代 出处 被引量
1青藏高原羌塘中部蓝片岩的地球化学特征及其构造意义显示文摘青藏高原羌塘中部的冈玛日 -桃形错地区蓝片岩被认为是板块构造边界的产物 ,通过对其主量元素、微量元素和稀土元素的地球化学特征的综合研究 ,其原岩属于洋岛型碱性玄武岩。再结合该地区的地质研究 ,表明在该地区存在一个古特提斯洋 。邓希光 丁林 刘小汉 An Yin Paul A KAPP Michael A MURPHY Craig E MANNING 2002岩石学报2002,18,4:58
2GATA-3 promotes Th2 responses through three different mechanisms: induction of Th2 cytokine production, selective growth of Th2 cells and inhibition of Thl cell-specific factors显示文摘Jinfang Zhu Hidehiro Yamane Javier Cote-Sierra Liying Guo William E Paul 2006Cell Research2006,16,1:48
3帕博利珠单抗单用或与放疗联用治疗转移性非小细胞肺癌:两个随机试验的汇总分析显示文摘背景放疗可以提高整个机体对免疫治疗的应答。在Ⅱ期PEMBRO-RT研究和Ⅰ/Ⅱ期MDACC研究中,患有转移性非小细胞肺癌(NSCLC)的患者被随机分配入组,接受免疫治疗(帕博利珠单抗)+放疗联合疗法,或免疫治疗单一疗法。当上述2个研究单独分析时,联合疗法组显示出潜在获益。由于每个研究的样本量较小,缓解率和结局并未显示出统计学意义,然而却有显著的临床获益。因此,本研究进行汇总分析,来判断放疗是否会改善转移性NSCLC患者的免疫治疗应答。方法PEMBRO-RT和MDACC研究纳入标准:患者年龄≥18岁,患有转移性NSCLC,且有≥1处未经放疗照射的病灶,以便进行射野外应答监测。PEMBRO-RT研究纳入曾接受过化疗患者,MDACC研究纳入曾接受过治疗或新诊断患者。2个研究中的患者均未接受过免疫治疗。在PEMBRO-RT研究中患者被等比例随机分配入组,并根据吸烟状态进行分层(分为<10年组和≥10年组)。MDACC研究的患者根据放疗计划可行性被等比例随机分配入2个受试组。由于联合治疗组的干预本质,每个研究中的放疗均不适用盲法。在2个研究中,不论是否进行放疗,均静脉滴入帕博利珠单抗(每3周200 mg)。在PEMBRO-RT研究中,在放疗(24 Gy 3次分割照射)结束后1周给予第1剂帕博利珠单抗。在MDACC研究中,在第1次放疗(50 Gy 4次分割照射或45 Gy 15次分割照射)同时给予帕博利珠单抗。仅检测未经照射病灶的应答。本研究的终点为最佳射野外(远隔)应答率(ARR)、最佳射野外疾病控制率(ACR)、12周时ARR、12周时ACR、无进展生存期(PFS)和总生存期(OS)。2个研究的意向治疗(ITT)人群均纳入分析。PEMBRO-RT研究(NCT02492568)和MDACC研究(NCT02444741)均在ClinicalTrials.gov上注册。发现纳入148例患者,76例接受帕博利珠单抗治疗,72例接受帕博利珠单抗+放疗治疗。所有患者随访时间中位数为33个月[四分位距(IQR):32.4~33.6]。148例患者中124例(84%)组织学特征为非鳞癌,111例(75%)患者曾经接受过化疗。组间没有基线特征差异,包括PD-L1表达状态和转移灶体积。最常见的照射部位为肺转移灶(39%,28/72)、胸腔内淋巴结(21%,15/72)和非原发灶(17%,12/72)。帕博利珠单抗组和联合治疗组的最佳ARR分别为19.7%(15/76)和41.7%(30/72),OR=2.96,95%CI:1.42~6.20,P=0.0039;最佳ACR分别为43.4%(33/76)和65.3%(47/72),OR=2.51,95%CI:1.28~4.91,P=0.0071;PFS中位数分别为4.4(IQR:2.9~5.9)和9.0个月(IQR:6.8~11.2),HR=0.67,95%CI:0.45~0.99,P=0.045;OS中位数分别为8.7(IQR:6.4~11.0)和19.2个月(IQR:14.6~23.8),OR=0.67,95%CI:0.54~0.84,P=0.0004。在汇总分析中没有发现新的安全问题。解读帕博利珠单抗免疫疗法+放疗显著提高转移性NSCLC患者的应答和改善治疗结局。这些结果需要在三期临床试验中进行验证。陈大卫(翻译) 于金明(校对) Willemijn S M E Theelen Vivek Verma Brian P Hobbs Heike M U Peulen Joachim G J V Aerts Idris Bahce Anna Larissa N Niemeijer Joe Y Chang Patricia M de Groot Quynh-Nhu Nguyen Nathan I Comeaux George R Simon Ferdinandos Skoulidis Steven H Lin Kewen He Roshal Patel John Heymach Paul Baas James W Welsh 2021中华肿瘤防治杂志2021,28,24:49
4Heterogeneity and plasticity of T helper cells显示文摘CD4 T 助手(Th ) 房间在适应有免疫力的回答起关键作用。他们包括 B 房间, CD8 T 房间,巨噬细胞,桅杆房间, neutrophils,嗜曙红血球和 basophils 招募并且激活另外的有免疫力的房间。基于他们的功能,他们 cytokine 分泌物的模式和他们特定的抄写因素的表示, Th 房间,区分开来与 na ? ve CD4 T 房间,被分类进四个主要的系, Th1 , Th2 , Th17 和 T 规章( Treg )房间,尽管另外的 Th 系可以存在。一样的系的子集可以表示不同受动器 cytokines,在不同地点住或而从不同的系的房间可以分泌普通 cytokines,产生有不同命运的房间,导致 Th 房间人口的巨大的异质,例如 IL-2, IL-9 和 IL-10。另外, cytokine 分泌物的模式可以在某些情形下面向另外一个从一个系的切换,建议 Th 房间是塑料的。Tregs 比原来是思维的也更异构、塑料。在这评论,我们在 Th 房间的异质和粘性上总结最近的报告,并且讨论如此的特征的潜在的机制和 Th 房间显示的含意。Jinfang Zhu William E Paul 2010Cell Research2010,20,1:39
5MRI-determined fat content of human liver,pancreas and kidney显示文摘AIM:To assess and correlate the lipid content of various organs in obese subjects and in persons with a normal body weight.METHODS:Magnetic resonance spectroscopy and a previously validated gradient echo magnetic resonance imaging method with Dixon's two point technique were used in this study to quantify fat in liver,pancreas as well as kidney.RESULTS:In 36 volunteers with body mass index(BMI) ranging from 20.0 to 42.9 kg/m2,the median fat content of liver,pancreas and kidney was 2.3%(interquartile range:0.2%-7.8%),2.7%(1.0%-6.5%) and 0.7%(0.1%-1.4%),respectively.BMI and subcutaneous fat correlated significantly with liver and pancreas fat content.We show for the first time the significant correlation of liver and pancreas fat content in healthy controls(r = 0.43,P < 0.01).These observations are related to body weight as measured by BMI and the amount of subcutaneous fat.Kidney fat content is very low and correlates with none of the other fat depots.CONCLUSION:Renal lipid accumulation,unlike the coupled accumulations of fat in liver and pancreas,is not observed in obese subjects.Unlike suggestions made in previous studies,renal lipid accumulation appears not to be involved in the pathogenesis of renal disease in humans.Paul E Sijens Mireille A Edens Stephan JL Bakker Ronald P Stolk 2010World Journal of Gastroenterology2010,16,16:14
6Platelet thromboxane(11-dehydro-Thromboxane B_2) and aspirin response in patients with diabetes and coronary artery disease显示文摘Aspirin(ASA) irreversibly inhibits platelet cyclooxygenase-1(COX-1) leading to decreased thromboxane-mediated platelet activation. The effect of ASA ingestion on thromboxane generation was evaluated in patients with diabetes(DM) and cardiovascular disease. Thromboxane inhibition was assessed by measuring the urinary excretion of 11-dehydro-thromboxane B2(11dhTxB2), a stable metabolite of thromboxane A2. The mean baseline urinary 11dhTxB2 of DM was 69.6% higher than healthy controls(P = 0.024): female subjects(DM and controls) had 50.9% higher baseline 11dhTxB2 than males(P = 0.0004), while age or disease duration had no influence. Daily ASA ingestion inhibited urinary 11dhTxB2 in both DM(71.7%) and controls(75.1%, P < 0.0001). Using a pre-established cut-off of 1500 pg/mg of urinary 11dhTxB2, there were twice as many ASA poor responders(ASA 'resistant') in DM than in controls(14.8% and 8.4%, respectively). The rate of ASA poor responders in two populations of acute coronary syndrome(ACS) patients was 28.6 and 28.7%, in spite of a significant(81.6%) inhibition of urinary 11dhTxB2(P < 0.0001). Both baseline 11dhTxB2 levels and rate of poor ASA responders were significantly higher in DM and ACS compared to controls. Underlying systemic oxidative inflammation may maintain platelet function in atherosclerotic cardiovascular disease irrespective of COX-1 pathway inhibition and/or increase systemic generation of thromboxane from non-platelet sources.Luis R Lopez Kirk E Guyer Ignacio Garcia De La Torre Kelly R Pitts Eiji Matsuura Paul RJ Ames 2014World Journal of Diabetes2014,5,2:13
7The value of testicular 'mapping' in men with non-obstructive azoospermia显示文摘Monika E Beliveau Paul J Turek 2011Asian Journal of Andrology2011,13,2:11
8Schistosoma mansoni proteins attenuate gastrointestinal motility disturbances during experimental colitis in mice显示文摘AIM:To investigate the therapeutic effect of Schistosoma mansoni(S.mansoni) soluble worm proteins on gastrointestinal motility disturbances during experimental colitis in mice. METHODS:Colitis was induced by intrarectal injection of trinitrobenzene sulphate(TNBS) and 6 h later,mice were treated ip with S.mansoni proteins.Experiments were performed 5 d after TNBS injection.Inflammationwas quantified using validated inflammation parameters. Gastric emptying and geometric center were measured to assess in vivo gastrointestinal motility.Peristaltic activity of distal colonic segments was studied in vitro using a modified Trendelenburg set-up.Cytokine profiles of T-lymphocytes isolated from the colon were determined by real time reverse transcriptase-polymerase chain reaction. RESULTS:Intracolonic injection of TNBS caused severe colitis.Treatment with S.mansoni proteins significantly ameliorated colonic inflammation after 5 d.TNBS did not affect gastric emptying but significantly decreased the geometric center and impaired colonic peristaltic activity 5 d after the induction of colitis.Treatment with S.mansoni proteins ameliorated these in vivo and in vitro motility disturbances.In addition,TNBS injection caused a downregulation of effector T cell cytokines after 5 d,whereas a S.mansoni protein effect was no longer observed at this time point. CONCLUSION:Treatment with S.mansoni proteins attenuated intestinal inflammation and ameliorated motility disturbances during murine experimental colitis.Nathalie E Ruyssers Benedicte Y De Winter Joris G De Man Natacha D Ruyssers Ann J Van Gils Alex Loukas Mark S Pearson Joel V Weinstock Paul A Pelckmans Tom G Moreels 2010World Journal of Gastroenterology2010,16,6:11
9诊断性试验和策略的证据质量和推荐强度的分级显示文摘GRADE系统能对诊断性试验或策略的证据质量和推荐强度进行分级。本文旨在阐释在此过程中如何考虑患者的重要结局,Holger J Schünemann Andrew D Oxman Jan Brozek Paul Glasziou Roman Jaeschke Gunn E Vist John W Williams Jr Regina Kunz Jonathan Craig Victor M Montori Patrick Bossuyt Gordon H Guyatt 李晓 黄程 陈耀龙 李幼平 2009中国循证医学杂志2009,9,5:7
10Endoscopic ultrasonography-guided fine needle aspiration:Relatively low sensitivity in the endosonographer population显示文摘AIM:To assess the characteristics and quality of endoscopic ultrasonography-guided fine needle aspiration(EUS-FNA) in a large panel of endosonographers.METHODS:A survey was conducted during the 13th annual live course of endoscopic ultrasonography(EUS) held in Amsterdam,Netherlands.A 2-page questionnaire was developed for the study.Content validity of the questionnaire was determined based on input by experts in the field and a review of the relevant literature.It contained 30 questions that pertained to demographics and the current practice for EUS-FNA of responders,including sampling technique,sample processing,cytopathological diagnosis and sensitivity of EUS-FNA for the diagnosis of solid mass lesions.One hundred and sixty-one endosonographers who attended the course were asked to answer the survey.This allowed assessing the current practice of EUS-FNA as well as the self-reported sensitivity of EUS-FNA for the diagnosis of solid mass lesions.We also examined which factors were associated with a self-reported sensitivity of EUS-FNA for the diagnosis of solid mass lesions > 80%.RESULTS:Completed surveys were collected from 92(57.1%) of 161 endosonographers who attended the conference.The endosonographers had been practicing endoscopy and EUS for 12.5 ± 7.8 years and 4.8 ± 4.1 years,respectively;one third of them worked in a hospital with an annual caseload > 100 EUS-FNA.Endoscopy practices were located in 29 countries,including 13 countries in Western Europe that totaled 75.3% of the responses.Only one third of endosonographers reported a sensitivity for the diagnosis of solid mass lesions > 80%(interquartile range of sensitivities,25.0%-75.0%).Factors independently associated with a sensitivity > 80% were(1) > 7 needle passes for pancreatic lesions or rapid on-site cytopathological evaluation(ROSE)(P < 0.0001),(2) a high annual hospital caseload(P = 0.024) and(3) routine isolation of microcores from EUS-FNA samples(P = 0.042).ROSE was routinely available to 27.9% of respondents.For lymph nodes and pancreatic masses,a maximum of three needle passes was performed by approximately two thirds of those who did not have ROSE.Microcores were routinely harvested from EUS-FNA samples by approximately one third(37.2%) of survey respondents.CONCLUSION:EUS-FNA sensitivity was considerably lower than reported in the literature.Low EUS-FNA sensitivity was associated with unavailability of ROSE,few needle passes,absence of microcore isolation and low hospital caseload.Jean-Marc Dumonceau Thibaud Koessler Jeanin E van Hooft Paul Fockens 2012World Journal of Gastroenterology2012,18,19:7
11Ultrasound-assessed non-culprit and culprit coronary vessels differ by age and gender显示文摘AIM: To investigate age-and gender-related differences in non-culprit versus culprit coronary vessels assessed with virtual histology intravascular ultrasound (VH-IVUS). METHODS: In 390 patients referred for coronary angiography to a single center (Luzerner Kantonsspital, Switzerland) between May 2007 and January 2011, 691 proximal vessel segments in left anterior descending, circumflex and/or right coronary arteries were imaged by VH-IVUS. Plaque burden and plaque composition(fibrous, fibro-fatty, necrotic core and dense calcium volumes) were analyzed in 3 age tertiles, according to gender and separated for vessels containing non-culprit or culprit lesions. To classify as vessel containing a culprit lesion, the patient had to present with an acute coronary syndrome, and the VH-IVUS had to be performed in a vessel segment containing the culprit lesion according to conventional coronary angiography. RESULTS: In non-culprit vessels the plaque burden increased significantly with aging (in men from 37% ± 12% in the lowest to 46% ± 10% in the highest age tertile, P < 0.001; in women from 30% ± 9% to 40% ± 11%, P < 0.001); men had higher plaque burden than women at any age (P < 0.001 for each of the 3 age tertiles). In culprit vessels of the lowest age tertile, plaque burden was significantly higher than that in non- culprit vessels (in men 48% ± 6%, P < 0.001 as compared to non-culprit vessels; in women 44% ± 18%, P = 0.004 as compared to non-culprit vessels). Plaque burden of culprit vessels did not significantly change during aging (plaque burden in men of the highest age tertile 51% ± 9%, P = 0.523 as compared to lowest age tertile; in women of the highest age tertile 49% ± 8%, P = 0.449 as compared to lowest age tertile). In men, plaque morphology of culprit vessels became increasingly rupture-prone during aging (increasing percentages of necrotic core and dense calcium), whereas plaque morphology in non-culprit vessels was less rupture-prone and remained constant during aging. In women, necrotic core in non-culprit vessels was very low at young age, but increased during aging resulting in a plaque morphology that was very similar to men. Plaque morphology in culprit vessels of young women and men was similar. CONCLUSION: This study provides evidence that age-and gender-related differences in plaque burden and plaque composition significantly depend on whether the vessel contained a non-culprit or culprit lesion.Andreas W Schoenenberger Nadja Urbanek Stefan Toggweiler Andreas E Stuck Thérèse J Resink Paul Erne 2013World Journal of Cardiology2013,5,3:7
12Multidisciplinary management of nonfunctional neuroendocrine tumor of the pancreas显示文摘Pancreatic neuroendocrine tumors(PNETs) are a rare and diverse group of tumors; nonfunctional(NF) PNETs account for the majority of cases. Most patients with NF-PNETs have metastatic disease at the time of presentation. A variety of treatment modalities exist, including medical, liver directed, and surgical treatments. Aggressive surgical management is associated with prolonged survival, however available data are limited by selection bias and the frequent combination of PNETs with carcinoid tumors. Although few patients with metastatic disease will be cured, application of currently available therapies in a multidisciplinary setting can lead to excellent outcomes with prolonged patient survival.Ian W Folkert Paul Hernandez Robert E Roses 2016World Journal of Gastroenterology2016,22,11:6
13High-density SNP-based genetic maps for the parents of an outcrossed and a selfed tetraploid garden rose cross, inferred from admixed progeny using the 68k rose SNP array显示文摘Dense genetic maps create a base for QTL analysis of important traits and future implementation of marker-assisted breeding.In tetraploid rose,the existing linkage maps include<300 markers to cover 28 linkage groups(4 homologous sets of 7 chromosomes).Here we used the 68k WagRhSNP Axiom single-nucleotide polymorphism(SNP)array for rose,in combination with SNP dosage calling at the tetraploid level,to genotype offspring from the garden rose cultivar‘Red New Dawn’.The offspring proved to be not from a single bi-parental cross.In rose breeding,crosses with unintended parents occur regularly.We developed a strategy to separate progeny into putative populations,even while one of the parents was unknown,using principle component analysis on pairwise genetic distances based on sets of selected SNP markers that were homozygous,and therefore uninformative for one parent.One of the inferred populations was consistent with self-fertilization of‘Red New Dawn’.Subsequently,linkage maps were generated for a bi-parental and a self-pollinated population with‘Red New Dawn’as the common maternal parent.The densest map,for the selfed parent,had 1929 SNP markers on 25 linkage groups,covering 1765.5 cM at an average marker distance of 0.9 cM.Synteny with the strawberry(Fragaria vesca)genome was extensive.Rose ICM1 corresponded to F.vesca pseudochromosome 7(Fv7),ICM4 to Fv4,ICM5 to Fv3,ICM6 to Fv2 and ICM7 to Fv5.Rose ICM2 corresponded to parts of F.vesca pseudochromosomes 1 and 6,whereas ICM3 is syntenic to the remainder of Fv6.Mirjana Vukosavljev Paul Arens Roeland E Voorrips Wendy P C van't Westende G D Esselink Peter M Bourke Peter Cox W Eric van de Weg Richard G F Visser Chris Maliepaard Marinus J M Smulders 2016Horticulture Research2016,3,1:6
14Through-needle all-optical ultrasound imaging in vivo: a preclinical swine study显示文摘High-frequency ultrasound imaging can provide exquisite visualizations of tissue to guide minimally invasive procedures.Here,we demonstrate that an all-optical ultrasound transducer,through which light guided by optical fibers is used to generate and receive ultrasound,is suitable for real-time invasive medical imaging in vivo.Broad-bandwidth ultrasound generation was achieved through the photoacoustic excitation of a multiwalled carbon nanotube-polydimethylsiloxane composite coating on the distal end of a 300-μm multi-mode optical fiber by a pulsed laser.The interrogation of a high-finesse Fabry–Pérot cavity on a single-mode optical fiber by a wavelength-tunable continuous-wave laser was applied for ultrasound reception.This transducer was integrated within a custom inner transseptal needle(diameter 1.08 mm;length 78 cm)that included a metallic septum to acoustically isolate the two optical fibers.The use of this needle within the beating heart of a pig provided unprecedented realtime views(50 Hz scan rate)of cardiac tissue(depth:2.5 cm;axial resolution:64μm)and revealed the critical anatomical structures required to safely perform a transseptal crossing:the right and left atrial walls,the right atrial appendage,and the limbus fossae ovalis.This new paradigm will allow ultrasound imaging to be integrated into a broad range of minimally invasive devices in different clinical contexts.Malcolm C Finlay Charles A Mosse Richard J Colchester Sacha Noimark Edward Z Zhang Sebastien Ourselin Paul C Beard Richard J Schilling Ivan P Parkin Ioannis Papakonstantinou Adrien E Desjardins 2017Light(Science & Applications)2017,6,1:6
15Artificial intelligence in gastroenterology: A state-of-the-art review显示文摘The development of artificial intelligence(AI)has increased dramatically in the last 20 years,with clinical applications progressively being explored for most of the medical specialties.The field of gastroenterology and hepatology,substantially reliant on vast amounts of imaging studies,is not an exception.The clinical applications of AI systems in this field include the identification of premalignant or malignant lesions(e.g.,identification of dysplasia or esophageal adenocarcinoma in Barrett’s esophagus,pancreatic malignancies),detection of lesions(e.g.,polyp identification and classification,small-bowel bleeding lesion on capsule endoscopy,pancreatic cystic lesions),development of objective scoring systems for risk stratification,predicting disease prognosis or treatment response[e.g.,determining survival in patients post-resection of hepatocellular carcinoma),determining which patients with inflammatory bowel disease(IBD)will benefit from biologic therapy],or evaluation of metrics such as bowel preparation score or quality of endoscopic examination.The objective of this comprehensive review is to analyze the available AI-related studies pertaining to the entirety of the gastrointestinal tract,including the upper,middle and lower tracts;IBD;the hepatobiliary system;and the pancreas,discussing the findings and clinical applications,as well as outlining the current limitations and future directions in this field.Paul T Kröner Megan ML Engels Benjamin S Glicksberg Kipp W Johnson Obaie Mzaik Jeanin E van Hooft Michael B Wallace Hashem B El-Serag Chayakrit Krittanawong 2021World Journal of Gastroenterology2021,27,40:6
16Evolving landscape and novel treatments in, metastatic castrate-resistant prostate cancer显示文摘为阉割抵抗的前列腺癌症(CRPC ) 的治疗选择在最近的年里进展了并且显著地与这好攻击、致命的疾病为病人改进了眼界。CRPC 的生物学的进一步的理解导致了几新指向的治疗并且继续强调雄激素受体(AR ) 的重要性指导了治疗。治疗风景很快生物学上正在改变并且推进基本原理,基于 biomarker 的进行中的临床的试用被需要。我们在 CRPC 考察主要临床的试用的最近的结果。新并且 investigational 代理人现在包括 angiogenesis,微导管,女伴, AR 和细胞内部的 kinases 的禁止者在临床的评估被考察,以及免疫疗法, radiopharmaceuticals 和指向骨头的代理人。在为 CRPC 的预后的最近的改进为进一步的改进带继续的乐观主义。对治疗的临床的考验和抵抗的机制的进一步的理解的有头脑的计划将允许在耐心的照顾的继续的进步。Paul J Toren Martin E Gleave 2013Asian Journal of Andrology2013,15,3:5
17Patient comfort and quality in colonoscopy显示文摘AIM: To explore the relationship of patient comfort and experience to commonly used performance indicators for colonoscopy. METHODS: All colonoscopies performed in our four endoscopy centres are recorded in two reporting systems that log key performance indicators. From 2008 to 2011, all procedures performed by qualified endoscopists were evaluated; procedures performed by trainees were excluded. The following variables were measured: Caecal intubation rate (CIR), nurse-reported comfort levels (NRCL) on a scale from 1 to 5, polyp detection rate (PDR), patient experience of the procedure (worse than expected, as expected, better than expected), and use of sedation and analgesia. Pearson' s correlation coefficient was used to identify relationships between performance indicators.RESULTS: A total of 17027 colonoscopies were performed by 23 independent endoscopists between 2008 and 2011. Caecal intubation rate varied from 79.0% to 97.8%, with 18 out of 23 endoscopists achieving a CIR of > 90%. The percentage of patients experiencing significant discomfort during their procedure (defined as NRCL of 4 or 5) ranged from 3.9% to 19.2% with an average of 7.7%. CIR was negatively correlated with NRCL-45 (r=-0.61, P < 0.005), and with poor patient experience (r=-0.54, P < 0.01). The average dose of midazolam (mean 1.9 mg, with a range of 1.1 to 3.5 mg) given by the endoscopist was negatively correlated with CIR (r=-0.59, P < 0.01). CIR was positively correlated with PDR (r=0.44, P < 0.05), and with the numbers of procedures performed by the endoscopists (r=0.64, P < 0.01). CONCLUSION: The best colonoscopists have a higher CIR, use less sedation, cause less discomfort and find more polyps. Measuring patient comfort is valuable in monitoring performance.Vivian E Ekkelenkamp Kevin Dowler Roland M Valori Paul Dunckley 2013World Journal of Gastroenterology2013,19,15:5
18Model combining pre-transplant tumor biomarkers and tumor size shows more utility in predicting hepatocellular carcinoma recurrence and survival than the BALAD models显示文摘AIM To assess the performance of BALAD, BALAD-2 and their component biomarkers in predicting outcome of hepatocellular carcinoma(HCC) patients after liver transplant.METHODS BALAD score and BALAD-2 class are derived from bilirubin, albumin, alpha-fetoprotein(AFP), Lens culinaris agglutinin-reactive AFP(AFP-L3), and des-gammacarboxyprothrombin(DCP). Pre-transplant AFP, AFP-L3 and DCP were measured in 113 patients transplanted for HCC from 2000 to 2008. Hazard ratios(HR) for recurrence and death were calculated. Univariate and multivariate regression analyses were conducted. C-statistics were used to compare biomarker-based to predictive models. RESULTS During a median follow-up of 12.2 years, 38 patients recurred and 87 died. The HRs for recurrence in patients with elevated AFP, AFP-L3, and DCP defined by BALAD cut-off values were 2.42(1.18-5.00), 1.86(0.98-3.52), and 2.83(1.42-5.61), respectively. For BALAD, the HRs for recurrence and death per unit increased score were 1.48(1.15-1.91) and 1.59(1.28-1.97). For BALAD-2, the HRs for recurrence and death per unit increased class were 1.45(1.06-1.98) and 1.38(1.09-1.76). For recurrence prediction, the combination of three biomarkers had the highest c-statistic of 0.66 vs. 0.64, 0.61, 0.53, and 0.53 for BALAD, BALAD-2, Milan, and UCSF, respectively. Similarly, for death prediction, the combination of three biomarkers had the highest c-statistic of 0.66 vs 0.65,0.61, 0.52, and 0.50 for BALAD, BALAD-2, Milan, and UCSF. A new model combining biomarkers with tumor size at the time of transplant(S-LAD) demonstrated the highest predictive capability with c-statistics of 0.71 and 0.69 for recurrence and death. CONCLUSION BALAD and BALAD-2 are valid in transplant HCC patients, but less predictive than the three biomarkers in combination or the three biomarkers in combination with maximal tumor diameter(S-LAD).Nicha Wongjarupong Gabriela M Negron-Ocasio Roongruedee Chaiteerakij Benyam D Addissie Essa A Mohamed Kristin C Mara William S Harmsen J Paul Theobald Brian E Peters Joseph G Balsanek Melissa M Ward Nasra H Giama Sudhakar K Venkatesh Denise M Harnois Michael R Charlton Hiroyuki Yamada Alicia Algeciras-Schimnich Melissa R Snyder Terry M Therneau Lewis R Roberts 2018World Journal of Gastroenterology2018,24,12:5
19恐怖主义犯罪学研究:前沿观点与未来发展显示文摘本文第一部分主要是对关于恐怖主义犯罪学研究的文章进行文献综述,介绍这类文章的主要内容与学术观点,并希望能够引起更多学者对恐怖主义犯罪学研究的关注。同时,本文着重介绍面向公众的恐怖主义数据库以及数据库的特点与数据内容,并结合全球恐怖主义数据库信息对未来恐怖主义犯罪学研究方向进行分析。Paul E Tracy 宋虹 2014犯罪研究2014,,1:5
20Self-expandable metal stents for malignant gastric outlet obstruction: A pooled analysis of prospective literature显示文摘AIM: To provide an overview of the clinical outcomes of self-expandable metal stent(SEMS) placement for malignant gastric outlet obstruction(MGOO).METHODS: A systematic literature search was performed in Pub Med of the literature published between January 2009 and March 2015. Only prospective studies that reported on the clinical success of stent placement for MGOO were included. The primary endpoint was clinical success,defined according to the definition used in the original article. Data were pooled and analyzed using descriptive statistics. Subgroup analyses were performed for partially covered SEMSs(PCSEMSs) and uncovered SEMSs(UCSEMSs) using Fisher's exact test.RESULTS: A total of 19 studies,including 1281 patients,were included in the final analysis. Gastric(42%) and pancreatic(37%) cancer were the main causes of MGOO. UCSEMSs were used in 76% of patients and PCSEMSs in 24%. The overall pooled technical success rate was 97.3% and the clinical success rate was 85.7%. Stent dysfunction occurred in 19.6% of patients,mainly caused by re-obstruction(12.6%) and stent migration(4.3%),and was comparable between PCSEMSs and UCSEMSs(21.2% vs 19.1%,respectively,P = 0.412). Re-obstruction was more common with UCSEMSs(14.9% vs 5.1%,P < 0.001) and stent migration was more frequent after PCSEMS placement(10.9% vs 2.2%,P < 0.001). The overall perforation rate was 1.2%. Bleeding was reported in 4.1% of patients,including major bleeding in 0.8%. The median stent patency ranged from 68 to 307 d in five studies. The median overall survival ranged from 49 to 183 d in 13 studies.CONCLUSION: The clinical outcomes in this large population showed that enteral stent placement was feasible,effective and safe. Therefore,stent placement is a valid treatment option for the palliation of MGOO.Emo E van Halsema Erik AJ Rauws Paul Fockens Jeanin E van Hooft 2015World Journal of Gastroenterology2015,21,43:5
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