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1CONSORT 2010说明与详述:报告平行对照随机临床试验指南的更新显示文摘大量证据显示随机对照临床试验(randomised controlled trial,RCT)的报告质量不理想。报告不透明,则读者既不能评判试验结果是否真实可靠,也不能从中提取可用于系统综述的信息。最近的方法学分析表明,报告不充分和设计不合理与对治疗效果产生评价偏倚有关。这种系统误差对RCT损害严重,而RCT正是以其能减少或避免偏倚而被视为评价干预措施的金标准。为了提高RCT的报告质量,一个由专家和编辑组成的工作组制定了临床试验报告的统一标准(Consolidated Standards of Reporting Trials,CONSORT)声明。CONSORT声明于1996年首次发表,并于2001年更新。声明由对照检查清单和流程图组成,供作者在报告RCT时使用。许多核心医学期刊和主要国际性编辑组织都已认可CONSORT声明。该声明促进了对RCT的严格评价和解释。2001年,在对CONSORT进行修订时,人们就已经清楚地认识到,解释和说明制定CONSORT声明的原理,有助于研究人员等撰写或评价临床试验报告。一篇CONSORT说明与详述文章于2001年同2001版CONSORT声明一起发表。2007年1月的专家会议之后,对CONSORT声明作了进一步修订并已发表,即'CONSORT2010声明'。这次更新对原版对照检查清单作了文字上的修改,使其更为明晰,并收入了与一些新近才认识到的主题相关的建议,如选择性报告结局产生的偏倚。说明与详述文件旨在加强人们对CONSORT声明的理解、应用和传播,这次也作了大量修订,对每一项新增或更新的清单条目的含义和增改理由进行了解释,提供了优秀的报告实例,还尽可能地提供了相关的经验性研究的参考文献。文中收入了若干流程图实例。'CONSORT2010声明'、其说明与详述文件,以及相关网站(www.consort-statement.org),对于改进随机临床试验报告必将有所裨益。David Moher Sally Hopewell Kenneth F Schulz Victor Montori Peter C Gφtzsche P J Devereaux Diana Elbourne Matthias Egger Douglas G Altman 周庆辉 卞兆祥 刘建平 2010中西医结合学报2010,8,8:318
2Contrast-enhanced endoscopic ultrasound in discrimination between focal pancreatitis and pancreatic cancer显示文摘瞄准:作为基于微容器的灌注特征把发炎区分开来与胰腺的癌的一个方法评估提高对比的 endosonography。方法:在有怀疑的慢性胰炎的 86 个病人(变老:62+/-12 年;性别:f/m 38/48 ) ,胰腺的损害被常规内视镜的 B 模式,力量 Doppler 超声和提高对比的力量模式检验(日立 EUB 525, SonoVue, 2.4 mL, Bracco ) 用为恶意的损害的下列标准:用常规力量 Doppler 的没有可检测的 vascularisation 在用 SonoVue 提高对比的技术和没有可检测的静脉的容器里面的短距离上的动脉的容器的扫描、不规则的外观损害。如果所有标准是可检测的,恶意的损害被假定[内视镜的超声(EUS ) 指导了的标准答案好针渴望细胞学,操作] 。没有瘤形成的慢性胰炎的标准在 SonoVue 的注射前被定义为没有可检测的 vascularisation,在在 SonoVue 的注射和动脉、静脉的容器的察觉以后的至少 20 公里的距离上的容器的常规外观。结果:常规 EUS 的敏感和特性为胰腺的癌症分别地是 73.2% 和 83.3% 。与恶意的胰腺的损害和特性在 56 个病人中的 51 个增加到 91.1% 的提高对比的 EUS 的敏感与长期的煽动性的胰腺的疾病在 30 个病人中的 28 个增加了到 93.3% 。结论:提高对比的内视镜的超声改进在慢性胰炎和胰腺的癌之间的区别。Michael Hocke Ewald Schulze Peter Gottschalk Theodor Topalidis Christoph F Dietrich 2006World Journal of Gastroenterology2006,12,2:43
3Arsenic uptake by arbuscular mycorrhizal maize (Zea mays L.) grown in an arsenic-contaminated soil with added phosphorus显示文摘arbuscular mycorrhizal (AM ) 的效果真菌(血管球 mosseae ) 和砷上的磷(P) 增加(100 mg/kg 土壤)( 作为) 由从污染言论集的土壤的玉米植物(Zea mays L.) 的举起在一个温室被检验 experiment.Non-mycorrhizal 和 zero-P 增加控制被包括。植物生物资源和集中和举起作为, P,和另外的营养素, AMcolonization,根长度,和菌丝的长度密度被决定。结果显示 P 的增加显著地禁止了根殖民和两个都在 thezero-P 处理,而是 AM 植物的射击和根生物资源下面与 mycorrhizal 殖民显著地增加的 extraradicalmycelium.Root 长度和干燥重量的开发被 P application.AM 压抑真菌的接种减少了当没有 P 被增加时,作为集中射击,并且 AM 植物的射击和根 Asconcentrations 与 P 增加, P 的 respectively.Shoot 和根举起, Mn , Cu ,和增加的 Zn 增加了 2.6 和 1.4 次,但是射击 Fe 举起在44.6%减少了与接种,当 Pwas added.P 增加减少了时,射击 P , Fe , Mn , AM 植物的 Cu ,和 Zn 举起,而是增加的根 Fe andMn nonmycorrhizal ones.AM 殖民的举起因此看起来提高植物忍耐到是在低 P 然而,为 As-contaminatedsoil 的 phytostabilization 玷污,并且有一些潜力 P 申请可以由增加土壤 Asmobility 介绍另外的环境风险。XIA Yun-sheng CHEN Bao-dong CHRISTIE Peter SMITH F Andrew WANG You-shan LI Xiao-lin 2007Journal of Environmental Sciences2007,19,10:18
4Vitamin D deficiency in cirrhosis relates to liver dysfunction rather than aetiology显示文摘AIM: To examine the vitamin D status in patients with alcoholic cirrhosis compared to those with primary biliary cirrhosis. METHODS: Our retrospective case series comprised 89 patients with alcoholic cirrhosis and 34 patients with primary biliary cirrhosis who visited our outpatient clinic in 2005 and underwent a serum vitamin D status assessment. RESULTS: Among the patients with alcoholic cirrhosis, 85% had serum vitamin D levels below 50 nmol/L and 55% had levels below 25 nmol/L, as compared to 60% and 16% of the patients with primary biliary cirrhosis, respectively (P < 0.001). In both groups, serum vitamin D levels decreased with increasing liver disease severity, as determined by the Child-Pugh score. CONCLUSION: Vitamin D deficiency in cirrhosis relates to liver dysfunction rather than aetiology, with lower levels of vitamin D in alcoholic cirrhosis than in primary biliary cirrhosis.Mikkel Malham SΦren Peter JΦrgensen Peter Ott JΦrgen Agnholt Hendrik Vilstrup Mette Borre Jens F Dahlerup 2011World Journal of Gastroenterology2011,17,7:15
5Helicobacter pylori vac A genotype is a predominant determinant of immune response to Helicobacter pylori CagA显示文摘AIM To evaluate the frequency of Helicobacter pylori(H. pylori) Cag A antibodies in H. pylori infected subjects and to identify potential histopathological and bacterial factors related to H. pylori Cag A-immune response.METHODS Systematic data to H. pylori isolates, blood samples, gastric biopsies for histological and molecular analyses were available from 99 prospectively recruited subjects. Serological profile(anti-H. pylori, anti-Cag A) was correlated with H. pylori isolates(cag A, EPIYA, vac A s/m genotype), histology(Sydney classification) and mucosal interleukin-8(IL-8) m RNA and protein expression. Selected H. pylori strains were assessed for H. pylori Cag A protein expression and IL-8 induction in co-cultivation model with AGS cells.RESULTS Thirty point three percent of microbiologically confirmed H. pylori infected patients were seropositive for Cag A. Majority of H. pylori isolates were cag A gene positive(93.9%) with following vac A polymorphisms: 42.4% vac A s1m1, 23.2% s1m2 and 34.3% s2m2. Anti-Cag AIg G seropositivity was strongly associated with atrophic gastritis, increased mucosal inflammation according to the Sydney score, IL-8 and cag A m RNA expression. V a c A s a n d m p o l y m o r p h i s m s w e r e t h e m a j o r determinants for positive(vac A s1m1) or negative(vac A s2m2) anti-Cag A serological immune response, which also correlated with the in vitro inflammatory potential in AGS cells. In vitro co-cultivation of representative H. pylori strains with AGS cells confirmed functional Cag A translocation, which showed only partial correlation with Cag A seropositivity in patients, supporting vac A as major co-determinant of the immune response.CONCLUSION Serological immune response to H. pylori cag A + strain in H. pylori infected patients is strongly associated with vac A polymorphism, suggesting the crucial role of bacterial factors in immune and clinical phenotype of the infection.Alexander Link Cosima Langner Wiebke Schirrmeister Wiebke Habendorf Jochen Weigt Marino Venerito Ina Tammer Dirk Schlüter Philipp Schlaermann Thomas F Meyer Thomas Wex Peter Malfertheiner 2017World Journal of Gastroenterology2017,23,26:12
6Predictive value of multi-detector computed tomography for accurate diagnosis of serous cystadenoma:Radiologic-pathologic correlation显示文摘AIM:To identify multi-detector computed tomography(MDCT) features most predictive of serous cystadenomas(SCAs),correlating with histopathology,and to study the impact of cyst size and MDCT technique on reader performance.METHODS:The MDCT scans of 164 patients with surgically verified pancreatic cystic lesions were reviewed by two readers to study the predictive value of various morphological features for establishing a diagnosis of SCAs.Accuracy in lesion characterization and reader conf idence were correlated with lesion size(≤3cm or≥3cm) and scanning protocols(dedicated vs routine).RESULTS:28/164 cysts(mean size,39 mm;range,8-92mm) were diagnosed as SCA on pathology.The MDCT features predictive of diagnosis of SCA were microcystic appearance(22/28,78.6%),surface lobulations(25/28,89.3%) and central scar(9/28,32.4%).Stepwise logistic regression analysis showed that only microcystic appearance was signifi cant for CT diagnosis of SCA(P=0.0001).The sensitivity,specificity and PPV of central scar and of combined microcystic appearance and lobulations were 32.4%/100%/100% and 68%/100%/100%,respectively.The reader confidence was higher for lesions>3cm(P=0.02) and for MDCT scans performed using thin collimation(1.25-2.5mm) compared to routine 5 mm collimation exams(P>0.05).CONCLUSION:Central scar on MDCT is diagnostic of SCA but is seen in only one third of SCAs.Microcystic morphology is the most significant CT feature in diagnosis of SCA.A combination of microcystic appearance and surface lobulations offers accuracy comparable to central scar with higher sensitivity.Anjuli A Shah Nisha I Sainani Avinash Kambadakone Ramesh Zarine K Shah Vikram Deshpande Peter F Hahn Dushyant V Sahani 2009World Journal of Gastroenterology2009,15,22:11
7后循环大血管闭塞性卒中的血管内治疗策略:美国神经介入外科学会(SNIS)标准和指南委员会共识显示文摘后循环卒中大约占所有卒中的20%,但后循环急性大血管闭塞(pc-ELVO)仅占所有急性大血管闭塞性卒中的5%。尽管少见,但pc-ELVO患者往往病情严重,症状也不典型,良好预后率低。如何更好地对这些患者进行管理,是目前临床治疗的难点。近期,美国神经介入外科学会(SNIS)发布了一项关于后循环大血管闭塞性卒中的血管内治疗指南,旨在为pc-ELVO的影像学检查、诊断和血管内治疗技术提供详细的最新指导。Yasha Kayan Philip M Meyers Charles J Prestigiacomo Peter Kan Justin F Fraser 王丽娜(翻译) 刘焕(翻译) 贺迎坤(翻译) 邢莹(翻译) 何艳艳(翻译) 李天晓(翻译) 朱良付(翻译) 李钊硕(翻译) 2019中华介入放射学电子杂志2019,7,4:11
8Capecitabine 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 2009World Journal of Gastroenterology2009,15,4:10
9Proposal 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 2016World Journal of Gastroenterology2016,22,13:10
10上市的整蛋白型和短肽型肠内营养制剂中的谷氨酰胺含量显示文摘背景对于患有严重分解代谢疾病、肠道功能障碍或免疫缺陷综合征的患者,谷氨酰胺是一种条件必需氨基酸。谷氨酰胺是许多肠内营养制剂的天然成分,但目前还缺乏有效的研究方法,无法定量测定膳食中的谷氨酰胺含量。目的利用新开发的蛋白质/肽结合谷氨酰胺评估方法来评估经选择的肠内营养制剂中的谷氨酰胺含量。方法共研究了14种市售肠内营养制剂(10种整蛋白型制剂,4种短肽型制剂)。去除具有干扰效应的脂肪和碳水化合物,通过化学发光法测定纯化制剂内的氮含量,通过三步法评估蛋白质/肽结合谷氨酰胺;采用新型双(三氟乙酰氧基)碘苯(BTI)水解前衍生技术将谷氨酰胺转化为对酸稳定的二氨基苯甲酸(DABA)。以新型微波技术水解衍生物,然后用反相高效液相色谱(RP-H PLC)丹酰氯柱前衍生法测定氨基酸含量。结果整蛋白型肠内营养制剂内的谷氨酰胺含量介于5.2~8.1g/16g氮。短肽型制剂中测得的谷氨酰胺含量明显较低(1.3~5.6g/16g氮)。结论日常肠内营养摄入可能能满足健康人的需求,但并不能为应激状态下的患者提供足量谷氨酰胺。肠内营养制剂内的谷氨酰胺含量不能满足应激患者的需要。Peter Fürst 顾良军 2005中国临床营养杂志2005,13,2:8
11Cerebral processing of auditory stimuli in patients with irritable bowel syndrome显示文摘瞄准:用大脑决定功能的磁性的回声成像(fMRI ) 非内脏的刺激的服的处理是否在急躁的肠症候群(IBS ) 被改变病人与健康题目相比。围绕针的内脏躯体集中机制,并且识别心理因素的可能的影响,我们使用了听觉的刺激刺激在他们的感情的质量不同。方法:在 8 个 IBS 病人和 8 控制, fMRI 大小用不同感情的质量(钟声,讨厌的偷看(2000 Hz ) ,中立的词,和感情的词的愉快的声音) 的 4 听觉的刺激的一个块图案被执行。坡度回响 T2 * 加权的顺序被用于功能的扫描。统计地图用一般线性模型被构造。结果:到感情的听觉的刺激,,相对控制的 IBS 病人在感情的处理区域的一个更大的变化与更强壮的释放反应了反应模式,在控制不同,没在令人烦恼或愉快的声音之间区分。到中立听觉的刺激,由对比,仅仅 IBS 病人与大重要激活反应了。结论:到在感情的处理刺激的区域的听觉的刺激的改变的服的反应模式建议在 IBS 的改变的感觉处理不能为内脏的感觉是特定的,但是可能在感情的敏感和感情方面的反应反映概括变化,可能与经常在 IBS 病人发现的心理 comorbidity 联系了。Viola Andresen Alexander Poellinger Chedwa Tsrouya Dominik Bach Albrecht Stroh Annette Foerschler Petra Georgiewa Marco Schmidtmann Ivo R van der Voort Peter Kobelt Claus Zimmer Bertram Wiedenmann Burghard F Klapp Hubert Monnikes 2006World Journal of Gastroenterology2006,12,11:8
1221世纪的临床营养显示文摘Peter Fürst 刘跃武 2004中国临床营养杂志2004,12,4:7
13Quality of life following laparoscopic Nissen fundoplication: Assessing short-term and long-term outcomes显示文摘AIM: To investigate the quality of life following lapa-roscopic Nissen fundoplication by assessing short-term and long-term outcomes. METHODS: From 1992 to 2005, 249 patients under-went laparoscopic Nissen fundoplication. Short-term outcome data including symptom response, side effects of surgery, endoscopy, and patient's perception of over-all success were collected prospectively. Long-term out-comes were investigated retrospectively in patients witha median follow-up of 10 years by assessment of reflux symptoms, side effects of surgery, durability of antire-flux surgery, need for additional treatment, patient's perception of success, and quality of life. Antireflux sur-gery was considered a failure based on the following criteria: moderate to severe heartburn or regurgitation; moderate to severe dysphagia reported in combination with heartburn or regurgitation; regular proton pump inhibitor medication use; endoscopic evidence of erosive esophagitis Savary-Miller grade 1-4; pathological 24-h pH monitoring; or necessity to undergo an additional surgery. The main outcome measures were short-and long-term cure rates and quality of life, with patient sat-isfaction as a secondary outcome measure. RESULTS: Conversion from laparoscopy to open sur-gery was necessary in 2.4% of patients. Mortality was zero and the 30-d morbidity was 7.6% (95%CI: 4.7%-11.7%). The median postoperative hospital stay was 2 d [interquartile range (IQR) 2-3 d]. Two hundred and forty-seven patients were interviewed for short-term analysis following endoscopy. Gastro-esophageal reflux disease was cured in 98.4% (95%CI: 95.9%-99.6%) of patients three months after surgery. New-onset dysphagia was encountered postoperatively in 13 patients (6.7%); 95% reported that the outcome was better after antireflux surgery than with preopera-tive medical treatment. One hundred and thirty-nine patients with a median follow-up of 10.2 years (IQR 7.2-11.6 years) were available for a long-term evalu-ation. Cumulative long-term cure rates were 87.7% (81.0%-92.2%) at 5 years and 72.9% (64.0%-79.9%) at 10 years. Gastrointestinal symptom rating scores and RAND-36 quality of life scores of patients with treatment success were similar to those of the general population but significantly lower in those with failed antireflux surgery. Of the patients available for long-term follow-up, 83% rated their operation a success. CONCLUSION: For the long-term, our results indicate decreasing effectiveness of laparoscopic antirefluxsurgery, although most of the patients seem to have an overall quality of life similar to that of the general population.Ilmo Kellokumpu Markku Voutilainen Caj Haglund Martti Frkkil Peter J Roberts Hannu Kautiainen 2013World Journal of Gastroenterology2013,19,24:7
14Quality of life:A critical outcome for all surgical treatmentsof gastric cancer显示文摘Surgery represents the main curative therapeutic modality for gastric cancer, and it is occasionally considered for palliation as well as prophylaxis. Most frequently, surgical outcomes are conveyed in terms of oncological outcomes such as recurrence and survival.However, quality of life(Qo L) is also important and should be considered when making treatment decisions- including the extent of and approach to surgery. Measurement of Qo L usually involves the application of questionnaires. While there are multiple Qo L questionnaires validated for use in oncology patients, there are very few that have been validated for use in those with gastric cancer. In this review, we discuss and compare the current status of Qo L questionnaires in gastric cancer. More importantly, the impact of surgery for treatment, palliation and prophylaxis of gastric cancer on Qo L will be described. These data should inform the surgeon on the optimal approach to treating gastric cancer, taking into account oncological outcomes. Knowledge gaps are also identified, providing a roadmap for future studies.Michael D McCall Peter J Graham Oliver F Bathe 2016World Journal of Gastroenterology2016,22,3:7
15High-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
16In vivo subsurface morphological and functional cellular and subcellular imaging of the gastrointestinal tract with confocal mini-microscopy显示文摘瞄准:为在活体内评估一根最新发达的手持的共焦的探针在啮齿类动物的完全的胃肠道的显微镜的成像。方法:一根新奇僵硬共焦的探针(直径 7 公里) 为 fluorophore 刺激用 488 nm 单身者线激光在人为使用与类似于灵活 endomicroscopy 系统的光特征被设计。轻排放在 505 ~ 750 nm 被检测。看法的地多样地是 475 妈妈 475 妈妈。光片厚度是有 0.7 妈妈的侧面的分辨率的 7 妈妈。在不同深度(到 250 妈妈的表面) 的表面下的连续图象多样地在 1024 点在实时被产生由在轻轻的、稳定的接触把探查放到织物上的 1024 个象素(0.8 frames/s ) 。织物标本为组织病理学说的关联被取样。结果:食管,胃,小并且大肠和中央,肝,胰和胆囊是在在 n = 的高分辨率的视觉 ised 在活体内 48 个鼠标。有共焦的微型显微镜学探查的实时显微镜的成像是容易的完成。不同染色协议(荧光黄,吖啶黄,标记 FITC 的葡聚糖和 L。可食用嗯植物凝血素) 织物的每个加亮的特定的方面,和在活体内成像与常规组织学最优地相关。在活体内血流监视把功能的质量加到词法成像。结论:共焦的显微镜学是在甚至表面下的织物结构的高分辨率允许完全的官方补给的道的可视化的可行在活体内。在这研究评估的新共焦的探查设计与腹腔镜检查兼容并且显著地扩展可能的应用的地到 intra 腹的机关。它允许新在活体内染色和申请选择的立即的测试因此在病人从动物研究允许快速的转移到临床的使用。Martin Goetz Beena Memadathil Stefan Biesterfeld Constantin Schneider Sebastian Gregor Peter R Galle Markus F Neurath Ralf Kiesslich 2007World Journal of Gastroenterology2007,13,15:6
17Oxidative and nitrosative stress enzymes in relation to nitrotyrosine in Helicobacter pylori-infected humans显示文摘AIM: To compare a possible relation between Helicobacter pylori(H. pylori) and the oxygen- and nitrogen radical system in humans. METHODS: Mechanisms for H. pylori to interfere with the oxygen and nitrogen radical system is of great importance for understanding of the H. pylori persistence and pathogenesis. Biopsies were obtained from the gastric wall of 21 individuals. Ongoing infection with H. pylori was detected using direct analyze from the biopsies using campylobacter-like organism test(CLO-test) and/or by using 14C-urea breath test. The individuals were divided in a negative H. pylori and a positive H. pylori group. Expression in the gastric mucosa of induc-ible nitric oxide syntase(iNOS), nicotinamide adenine dinucleotide phosphate-oxidase(NADPH-oxidase) myeloperoxidase(MPO), and nitrotyrosine were assessed by Western blotting.RESULTS: The individuals who undervent gastroscopy were divided in a H. pylori neg. [n = 13, m/f = 7/6, age(mean) = 39] and a H. pylori pos. group [n = 8, m/f = 5/3, age(mean) = 53]. Using western blot analysis iNOS was detected as a 130 kDa band. The iNOS expression was upregulated in the antrum of H. pylori infected individuals in comparison to the controls, mean ± SD being 12.6 ± 2.4 vs 8.3 ± 3.1, P < 0.01. There was a markedly upregulated expression of MPO in the antrum of H. pylori infected individuals in comparison to the control group without infection. In several of noninfected controls it was not possible to detect any MPO expression at all, whereas the expression was high in all the infected subjects, mean ± SD being 5.1 ± 3.4 vs 2.1 ± 1.9, P < 0.05. The NADPH-oxidase expression was analysed by detecting the NADPH-oxidase subunit p47-phox expression. P47-phox was detected as a 47 kDa band using Western blot, and showed a significantly higher expression of p47-phox in the antrum of the H. pylori infected individuals compared to the controls, mean ± SD being 3.1 ± 2.2 vs 0.3 ± 0.2, P < 0.01. Regarding nitrotyrosine formation, Western blot did not show any significant increase or decrease compared to controls, 7.0 ± 0.9 vs 6.9 ± 1.1, not significant.CONCLUSION: iNOS, MPO and NADPH-oxidase was up-regulated among H. pylori infected. Regarding nitrotyrosine no difference was found. This support an H. pylori related inhibition of radical formation.Anders Elfvin Anders Edebo Peter Hallersund Anna Casselbrant Lars Fndriks 2014World Journal of Gastrointestinal Pathophysiology2014,5,3:5
18二肽的潜在临床应用显示文摘Peter Fürst 牛玉坚 2004中国临床营养杂志2004,12,3:5
19Adherence to surveillance guidelines for dysplasia and colorectal carcinoma in ulcerative and Crohn's colitis patients in the Netherlands显示文摘AIM: To study adherence to the widely accepted surveillance guidelines for patients with long-standing colitis in the Netherlands. METHODS: A questionnaire was sent to all 244 gastroenterologists in the Netherlands. RESULTS: The response rate was 63%. Of all gastroenterologists, 95% performed endoscopic surveillance in ulcerative colitis (UC) patients and 65% in patients with Crohn's colitis. The American Gastroenterological Association (AGA) guidelines were followed by 27%, while 27% and 46% followed their local hospital protocol or no specific protocol, respectively. The surveillance was correctly initiated in cases of pancolitis by 53%, and in cases of left-sided colitis by 44% of the gastroenterologists. Although guidelines recommend 4 biopsies every 10 cm, less than 30 biopsies per colonoscopy were taken by 73% of the responders. Only 31%, 68% and 58% of the gastroenterologists referred patients for colectomy when low-grade dysplasia, high-grade dysplasia (HGD) or Dysplasia Associated Lesion or Mass (DALM) was present, respectively. CONCLUSION: Most Dutch gastroenterologists performendoscopic surveillance without following international recommended guidelines. This practice potentially leads to a decreased sensitivity for dysplasia, rendering screening for colorectal cancer in this population highly ineffective.Anne F van Rijn Paul Fockens Peter D Siersema Bas Oldenburg 2009World Journal of Gastroenterology2009,15,2:4
20Quantitative study of prostate cancer using three dimensional fiber tractography显示文摘AIM:To investigate feasibility of a quantitative study of prostate cancer using three dimensional(3D)fiber tractography.METHODS:In this institutional review board approved retrospective study,24 men with biopsy proven prostate cancer underwent prostate magnetic resonance imaging(MRI)with an endorectal coil on a 1.5 T MRI scanner.Single shot echo-planar diffusion weighted images were acquired with b = 0.600 s/mm^2,six gradient directions.Open-source available software Track Vis and its Diffusion Toolkit were used to generate diffusion tensor imaging(DTI)map and 3D fiber tracts.Multiple 3D spherical regions of interest were drawn over the areas of tumor and healthy prostatic parenchyma to measure tract density,apparent diffusion coefficient(ADC)and fractional anisotropy(FA),which were statistically analyzed.RESULTS:DTI tractography showed rich fiber tract anatomy with tract heterogeneity.Mean tumor region and normal parenchymal tract densities were 2.53 and 3.37 respectively(P < 0.001).In the tumor,mean ADC was 0.0011 × 10^(-3 )mm^2/s vs 0.0014 × 10^(-3) mm^2/s in the normal parenchyma(P < 0.001).The FA values for tumor and normal parenchyma were 0.2047 and 0.2259 respectively(P = 0.3819).CONCLUSION:DTI tractography of the prostate is feasible and depicts congregate fibers within the gland.Tract density may offer new biomarker to distinguish tumor from normal tissue.Sandeep Hedgire Alexey Tonyushkin Aoife Kilcoyne Jason A Efstathiou Peter F Hahn Mukesh Harisinghani 2016World Journal of Radiology2016,8,4:4
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