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| 1 | Upper-gastrointestinal bleeding secondary to peptic ulcer disease:Incidence and outcomes显示文摘AIM:To evaluate the incidence,surgery,mortality,and readmission of upper gastrointestinal bleeding(UGIB)secondary to peptic ulcer disease(PUD).METHODS:Administrative databases identified all hospitalizations for UGIB secondary to PUD in Alberta,Canada from 2004 to 2010(n=7079)using the International Classification of Diseases Codes(ICD-10).A subset of the data was validated using endoscopy reports.Positive predictive value and sensitivity with 95%confidence intervals(CI)were calculated.Incidence of UGIB secondary to PUD was calculated.Logistic regression was used to evaluate surgery,in-hospital mortality,and 30-d readmission to hospital with recurrent UGIB secondary to PUD.Co-variants accounted for in our logistic regression model included:age,sex,area of residence(i.e.,urban vs rural),number of Charlson comorbidities,presence of perforated PUD,undergoing upper endoscopy,year of admission,and interventional radiological attempt at controlling bleeding.A subgroup analysis(n=6356)compared outcomes of patients with gastric ulcers to those with duodenal ulcers.Adjusted estimates are presented as odds ratios(OR)with95%CI.RESULTS:The positive predictive value and sensitivity of ICD-10 coding for UGIB secondary to PUD were85.2%(95%CI:80.2%-90.2%)and 77.1%(95%CI:69.1%-85.2%),respectively.The annual incidence between 2004 and 2010 ranged from 35.4 to 41.2 per100000.Overall risk of surgery,in-hospital mortality,and 30-d readmission to hospital for UGIB secondary to PUD were 4.3%,8.5%,and 4.7%,respectively.Interventional radiology to control bleeding was performed in 0.6%of patients and 76%of these patients avoided surgical intervention.Thirty-day readmission significantly increased from 3.1%in 2004 to 5.2%in 2010(OR=1.07;95%CI:1.01-1.14).Rural residents(OR rural vs urban:2.35;95%CI:1.83-3.01)and older individuals(OR≥65 vs<65:1.57;95%CI:1.21-2.04)were at higher odds of being readmitted to hospital.Patients with duodenal ulcers had higher odds of dying(OR=1.27;95%CI:1.05-1.53),requiring surgery(OR=1.73;95%CI:1.34-2.23),and being readmitted to hospital(OR=1.54;95%CI:1.19-1.99)when compared to gastric ulcers.CONCLUSION:UGIB secondary to PUD,particularly duodenal ulcers,was associated with significant morbidity and mortality.Early readmissions increased over time and occurred more commonly in rural areas. | Samuel Quan Alexandra Frolkis Kaylee Milne Natalie Molodecky Hong Yang Elijah Dixon Chad G Ball Robert P Myers Subrata Ghosh Robert Hilsden Sander Veldhuyzen van Zanten Gilaad G Kaplan | 2014 | World Journal of Gastroenterology2014，20，46： | 21 |
| 2 | Apparent diffusion coefficient values of normal testis and variations with age显示文摘在阴囊的病理的评估的散开加权的磁性的回声成像(DWI ) 的实用性最近被报导了。当解释正常阴囊的解剖和病理时,阴囊的明显的散开系数(模数转换器) 珍视的正常和他们有年龄的变化的一本标准参考书是必要的。我们用 DWI 评估了 147 个正常睾丸,包括从 20-39 年(组 1 ) 的 53 个人的 71 个睾丸,从 40-69 年(组 2 ) 的 42 个人的 67 个睾丸和从比 70 年(组 3 ) 老的六个人的九个睾丸。DWI 沿着轴的飞机被执行,用单个射击, multislice 纺纱回响平面散开脉搏顺序和 0 和 900 s 公里 −2 的 b 值。正常阴囊的实质的模数转换器价值的平均数和标准差独立为每个年龄组被计算。柱子 hoc 分析(Dunnett T3 ) 跟随的变化(ANOVA ) 的分析被用于统计目的。模数转换器价值(×正常阴囊的织物的 10 −3 公里 2 s −1) 在年龄组之中是不同的(组 1:1.08 ±0.13;组 2:1.15 ±0.15 和组 3:1.31 ±0.22 ) 。ANOVA 在年龄组之中在吝啬的模数转换器揭示了差别(F = 11.391, P <0.001 ) 。波斯特 hoc 分析显示出组之间的差别 1 和 2 (P = 0.008 ) 并且在组之间 1 和 3 (P = 0.043 ) ,然而并非在组之间 2 和 3 (P = 0.197 ) 。我们的调查结果建议正常阴囊的织物的模数转换器价值与推进年龄增加。 | Athina C Tsili Dimitrios Giannakis Anastasios Sylakos Alexandra Ntorkou Loukas G Astrakas Nikolaos Sofikitis Maria I Argyropoulou | 2014 | Asian Journal of Andrology2014，16，3： | 8 |
| 3 | Aging related methylation influences the gene expression of key control genes in colorectal cancer and adenoma显示文摘AIM To analyze colorectal carcinogenesis and age-related DNA methylation alterations of gene sequences associated with epigenetic clock CpG sites. METHODS In silico DNA methylation analysis of 353 epigenetic clock Cp G sites published by Steve Horvath was performed using methylation array data for a set of 123 colonic tissue samples [64 colorectal cancer(CRC), 42 adenoma, 17 normal; GEO accession number: GSE48684]. Among the differentially methylated agerelated genes, secreted frizzled related protein 1(SFRP1) promoter methylation was further investigated in colonic tissue from 8 healthy adults, 19 normal children, 20 adenoma and 8 CRC patients using bisulfite-specific PCR followed by methylation-specific high resolution melting(MS-HRM) analysis. m RNA expression of age-related 'epigenetic clock' genes was studied using Affymetrix HGU133 Plus2.0 whole transcriptome data of 153 colonic biopsy samples(49 healthy adult, 49 adenoma, 49 CRC, 6 healthy children)(GEO accession numbers: GSE37364, GSE10714, GSE4183, GSE37267). Whole promoter methylation analysis of genes showing inverse DNA methylationgene expression data was performed on 30 colonic samples using methyl capture sequencing.RESULTS Fifty-seven age-related Cp G sites including hypermethylated PPP1R16 B, SFRP1, SYNE1 and hypomethylated MGP, PIPOX were differentially methylated between CRC and normal tissues(P < 0.05, ?β≥ 10%). In the adenoma vs normal comparison, 70 CpG sites differed significantly, including hypermethylated DKK3, SDC2, SFRP1, SYNE1 and hypomethylated CEMIP, SPATA18(P < 0.05, ?β≥ 10%). In MS-HRM analysis, the SFRP1 promoter region was significantly hypermethylated in CRC(55.0% ± 8.4 %) and adenoma tissue samples(49.9% ± 18.1%) compared to normal adult(5.2% ± 2.7%) and young(2.2% ± 0.7%) colonic tissue(P < 0.0001). DNA methylation of SFRP1 promoter was slightly, but significantly increased in healthy adults compared to normal young samples(P < 0.02). This correlated with significantly increased SFRP1 m RNA levels in children compared to normal adult samples(P < 0.05). In CRC tissue the mR NA expression of 117 agerelated genes were changed, while in adenoma samples 102 genes showed differential expression compared with normal colonic tissue(P < 0.05, logF C > 0.5). The change of expression for several genes including SYNE1, CLEC3 B, LTBP3 and SFRP1, followed the same pattern in aging and carcinogenesis, though not for all genes(e.g., MGP). CONCLUSION Several age-related DNA methylation alterations can be observed during CRC development and progression affecting the m RNA expression of certain CRC- and adenoma-related key control genes. | Orsolya Galamb Alexandra Kalmár Barbara Kinga Barták árpád V Patai Katalin Leiszter Bálint Péterfia Barnabás Wichmann Gábor Valcz Gábor Veres Zsolt Tulassay Béla Molnár | 2016 | World Journal of Gastroenterology2016，22，47： | 7 |
| 4 | Pancreatic cancer: Are 'liquid biopsies' ready for prime-time?显示文摘Pancreatic cancer is a disease that carries a poor prognosis. Accurate tissue diagnosis is required. Tumours contain a high content of stromal tissue and therefore biopsies may be inconclusive. Circulating tumour cells(CTCs) have been investigated as a potential 'liquid biopsy' in several malignancies and have proven to be of prognostic value in breast, prostate and colorectal cancers. They have been detected in patients with localised and metastatic pancreatic cancer with sensitivities ranging from 38%-100% using a variety of platforms. Circulating tumour DNA(ct DNA) has also been detected in pancreas cancer with a sensitivity ranging from 26%-100% in studies across different platforms and using different genetic markers. However, there is no clear consensus on which platform is the most effective for detection, nor which genetic markers are the most useful to use. Potential roles of liquid biopsies include diagnosis, screening, guiding therapies and prognosis. The presence of CTCs or ct DNA has been shown to be of prognostic value both at diagnosis and after treatment in patients with pancreatic cancer. However, more prospective studies are required before this promising technology is ready for adoption into routine clinical practice. | Alexandra R Lewis Juan W Valle Mairead G Mc Namara | 2016 | World Journal of Gastroenterology2016，22，32： | 5 |
| 5 | Alleviated mucosal and neuronal damage in a rat model of Crohn's disease显示文摘AIM:To establish a rat model suitable to investigate the repetitive relapsing inflammations(RRI)characteristic to Crohn’s disease.METHODS:Colitis was induced by 2,4,6-trinitrobenzenesulfonic acid(TNBS).RRI were mimicked by repeating administrations of TNBS.Tissue samples were taken from control,once,twice and three times treated rats from the inflamed and adjacent non-inflamed colonic segments at different timepoints during the acute intestinal inflammation.The means of the ulcerated area were measured to evaluate the macroscopic mu-cosal damage.The density of myenteric neurons was determined on whole mounts by Hu C/Hu D immunohistochemistry.Heme oxygenase-1(HO-1)expression was evaluated by molecular biological techniques.RESULTS:TNBS-treated rats displayed severe colitis,but the mortality was negligible,and an increase of body weight was characteristic throughout the experimental period.The widespread loss of myenteric neurons,and marked but transient HO-1 up-regulation were demonstrated after the first TNBS administration.After repeated doses the length of the recovery time and extent of the ulcerous colonic segments were markedly decreased,and the neuronal loss was on a smaller scale and was limited to the inflamed area.HO-1 m RNA level was notably greater than after a single dose and overexpression was sustained throughout the timepoints examined.Nevertheless,the HO-1protein up-regulation after the second TNBS treatment proved to be transient.Following the third treatment HO-1 protein expression could not be detected.CONCLUSION:Experimentally provoked RRI may exert a protective preconditioning effect against the mucosal and neuronal damage.The persistent up-regulation of HO-1 m RNA expression may correlate with this. | Petra Talapka Lajos István Nagy Alexandra Pál Marietta Zita Poles Anikó Berkó Mária Bagyánszki László Géza Puskás éva Fekete Nikolett Bódi | 2014 | World Journal of Gastroenterology2014，20，44： | 3 |
| 6 | Factors Associated With Response to Therapy and Outcome of Patients With Primary Biliary Cirrhosis With Features of Autoimmune Hepatitis显示文摘 | Ersan Ozaslan Cumali Efe Alexandra Heurgué–Berlot Taylan Kav Chiara Masi Tugrul Purnak Luigi Muratori Yücel Ustündag Solange Bresson–Hadni Gérard Thiéfin Thomas D. Schiano Staffan Wahlin Paolo Muratori | 2014 | Clinical Gastroenterology and Hepatology2014，，： | 3 |
| 7 | Autoimmune hepatitis/primary biliary cirrhosis overlap syndrome and associated extrahepatic autoimmune diseases显示文摘 | Cumali Efe Staffan Wahlin Ersan Ozaslan Alexandra Heurgue Berlot Tugrul Purnak Luigi Muratori Chiara Quarneti Osman Yüksel Gérard Thiéfin Paolo Muratori | 2012 | European Journal of Gastroenterology & Hepatology2012，，5： | 2 |
| 8 | Endogenous markers of hypoxia/anaerobic metabolism and anemia in primary colorectal cancer显示文摘 | KOUKOURAKIS ALEXANDRA G | 2006 | Cancer Sci2006，97，7： | 1 |
| 9 | Thymidinephosphorylase expression in patients with chronic viral hepati-tis显示文摘 | Konstantinos M Alexandra G Efthimios S | 2005 | Rom J Gastroenterol2005，14，1： | 1 |
| 10 | Characterization of polyploid wheat genomic diversity using a high-density 90 000 single nucleotide polymorphism array 显示文摘 | Wang SC Debbie W Kerrie F Alexandra A Shiaoman C Bevan EH Marco M Silvio S Sara GM Luigi C Anna MM Alex W Stuart S Gary B Ralf W Joerg P International Wheat Genome Sequencing Consortium Morten L Diane M Rudi A Rudy D Gina BG Abraham K Alina RA Catherine F Jerome S Michele M Curtis P Luo MC Jan DMM Jorge D Martin G Roberto T Cindy L Ivan M Colin C Keith JE Matthew H Eduard A | 2014 | Plant Biotechnol J2014，12，： | 1 |
| 11 | Rapid effects of plant species diversity and identity on soil microbial communities in ex- perimental grassland ecosystems 显示文摘 | Gladys L M Laure B Alexandra G | 2006 | Soil Biology and Biochemis- try2006，38，： | 1 |
| 12 | Lung autoph- agic response following exposure of mice to whole body irradiation,with and without amifostine显示文摘 | Christos EZ Alexandra G Heikki K | 2011 | Bioehem Bio- phys Res Communi2011，404，1： | 1 |
| 13 | Interaction of hydrogen peroxide with nanoporous material prepared by alkaline activation of the brown coal显示文摘 | Alexandra S Gribanova Vladimir A Kucherenko Tatyana G Shendrik | | 0，，04： | 1 |
| 14 | Lactate dehydrogenase isoenzymes 1 and 5 differential expression by neoplastic and stromal cells in non-small cell lung cancer and other epithelial malignant tumors显示文摘 | MICHAEL I K ALEXANDRA G EFTHIMIOS S | | 0，，： | 1 |
| 15 | Chromone-2-and-3-carboxylic acids inhinbit differently monoamine oxidase A and B 显示文摘 | Stefano A Alexandra G | 2010 | Bioorganic & Medicinal Chemistry Letters2010，20，： | 1 |
| 16 | Lactate-dehydrogenase 5 expression in squamous cell head and neck cancer relates to prognosis following radical or postoperative radiotherapy显示文摘 | MICHAEL I K EFTHIMIOS S ALEXANDRA G | | 0，，： | 1 |
| 17 | Correlation of corn and soybean yield with topography and soil properties显示文摘 | Alexandra N K Donald G B | 2000 | Agronomy Journal2000，92，1： | 1 |
| 18 | Theory of stimula- ted Raman scattering cancellation in wavelength-division- ultiplexed systems via spectral inversion 显示文摘 | Alexandra G G Demetrios N C Jean T | 1999 | Photonics Technology Letters1999，11，10： | 1 |
| 19 | Advantages of enteral nutrition over parenteral nutrition显示文摘 | David S S Monika V Alexandra G | 2013 | Therap Adv Gastroenterol2013，6，2： | 1 |
| 20 | Nanoscale materials damage fish brains显示文摘 | Alexandra G Tiny T | 2004 | Science News2004，165，14： | 1 |
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