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| 1 | MicroRNAs, development of Barrett’s esophagus, and progression to esophageal adenocarcinoma显示文摘Barrett's esophagus is a premalignant condition caused by gastroesophageal reflux. Once developed, it can progress through varying grades of dysplasia to esoph-ageal adenocarcinoma. Whilst it is well accepted that Barrett's esophagus is caused by gastroesophageal reflux, the molecular mechanisms of its pathogenesis and progression to cancer remain unclear. MicroRNAs (miRNAs) are short segments of RNA that have been shown to control the expression of many human genes. They have been implicated in most cellular processes, and the role of miRNAs in disease development is be-coming increasingly evident. Understanding altered miRNA expression is likely to help unravel the molecular mechanisms that underpin the development of Barrett's esophagus and its progression to cancer. | Cameron M Smith David I Watson Michael Z Michael Damian J Hussey | 2010 | World Journal of Gastroenterology2010，16，5： | 23 |
| 2 | Design of 16S rRNA gene primers for 454 pyrosequencing of the human foregut microbiome显示文摘AIM:To design and validate broad-range 16S rRNA primers for use in high throughput sequencing to classify bacteria isolated from the human foregut microbiome.METHODS:A foregut microbiome dataset was constructed using 16S rRNA gene sequences obtained from oral,esophageal,and gastric microbiomes produced by Sanger sequencing in previous studies represented by 219 bacterial species.Candidate primers evaluated were from the European rRNA database.To assess the effect of sequence length on accuracy of classification,16S rRNA genes of various lengths were created by trimming the full length sequences.Sequences spanning various hypervariable regions were selected to simulate the amplicons that would be obtained using possible primer pairs.The sequences were compared with full length 16S rRNA genes for accuracy in taxonomic classification using online software at the Ribosomal Database Project (RDP).The universality of the primer set was evaluated using the RDP 16S rRNA database which is comprised of 433 306 16S rRNA genes,represented by 36 phyla.RESULTS:Truncation to 100 nucleotides(nt)downstream from the position corresponding to base 28 in the Escherichia coli 16S rRNA gene caused misclassification of 87(39.7%)of the 219 sequences,compared with misclassification of only 29(13.2%)sequences with truncation to 350 nt.Among 350-nt sequence reads within various regions of the 16S rRNA gene,the reverse read of an amplicon generated using the 343F/798R primers had the least(8.2%)effect on classification.In comparison,truncation to 900 nt mimicking single pass Sanger reads misclassified 5.0%of the 219 sequences.The 343F/798R amplicon accurately assigned 91.8%of the 219 sequences at the species level.Weighted by abundance of the species in the esophageal dataset,the 343F/798R amplicon yielded similar classification accuracy without a significant loss in species coverage(92%).Modification of the 343F/798R primers to 347F/803R increased their universality among foregut species.Assuming that a typicalpolymerase chain reaction can tolerate 2 mismatches between a primer and a template,the modified 347F and 803R primers should be able to anneal 98%and 99.6%of all 16S rRNA genes in the RDP database.CONCLUSION:347F/803R is the most suitable pair of primers for classification of foregut 16S rRNA genes but also possess universality suitable for analyses of other complex microbiomes. | Carlos W Nossa William E Oberdorf Jφrn A Aas Bruce J Paster Todd Z DeSantis Eoin L Brodie Daniel Malamud Michael A Poles Zhiheng Pei | 2010 | World Journal of Gastroenterology2010，16，33： | 16 |
| 3 | miR-200 family expression is downregulated upon neoplastic progression of Barrett's esophagus显示文摘AIM: To investigate miR-200 family expression in Barrett's epithelium, gastric and duodenal epithelia, and esophageal adenocarcinoma. METHODS: Real-time reverse transcriptase-polymerase chain reaction was used to measure miR-200, ZEB1 and ZEB2 expression. Ingenuity Pathway Analysis of miR-200 targets was used to predict biological outcomes. RESULTS: Barrett's epithelium expressed lower levels of miR-141 and miR-200c than did gastric and duodenal epithelia (P < 0.001). In silico analysis indicated roles for the miR-200 family in molecular pathways that distinguish Barrett's epithelium from gastric and duodenalepithelia, and which control apoptosis and proliferation. All miR-200 members were downregulated in adenocarcinoma (P < 0.02), and miR-200c expression was also downregulated in non-invasive epithelium adjacent to adenocarcinoma (P < 0.02). The expression of all miR-200 members was lower in Barrett's epithelium derived high-grade dysplastic cell lines than in a cell line derived from benign Barrett's epithelium. We observed signif icant inverse correlations between miR-200 family expression and ZEB1 and ZEB2 expression in Barrett's epithelium and esophageal adenocarcinoma (P < 0.05). CONCLUSION: miR-200 expression might contribute to the anti-apoptotic and proliferative phenotype of Barrett's epithelium and regulate key neoplastic processes in this epithelium. | Cameron M Smith David I Watson Mary P Leong George C Mayne Michael Z Michael Bas PL Wijnhoven Damian J Hussey | 2011 | World Journal of Gastroenterology2011，17，8： | 13 |
| 4 | Ablation techniques for primary and metastatic liver tumors显示文摘Ablative treatment methods have emerged as safe and effective therapies for patients with primary and secondary liver tumors who are not surgical candidates at the time of diagnosis.This article reviews the current literature and describes the techniques,complications and results for radiofrequency ablation,microwave ablation,cryoablation,and irreversible electroporation. | Michael J Ryan Jonathon Willatt Bill S Majdalany Ania Z Kielar Suzanne Chong Julie A Ruma Amit Pandya | 2016 | World Journal of Hepatology2016，8，3： | 13 |
| 5 | MicroRNA signatures in chemotherapy resistant esophageal cancer cell lines显示文摘AIM:To investigate expression of microRNA(miRNA)and potential targets in chemotherapy resistant esoph-ageal cancer cell lines.METHODS:An in-vitro model of acquired chemotherapy resistance in esophageal adeno-(EAC)and squamous cell carcinoma(ESCC)cells was used,and microRNA expression profiles for cisplatin or 5-fluorouracil(5-FU)resistant variants vs chemotherapy sensitive controls were compared using microarray and quantitative real-time polymerase chain reaction(PCR).The expression of chemotherapy-relevant genes potentially targeted by the dysregulated microRNAs in the chemotherapy resistant variants was also evaluated.RESULTS:Chemotherapy resistant sublines were found to have specific miRNA signatures,and these miRNA signatures were different for the cisplatin vs 5-FU resistant cells from the same tumor cell line,and also for EAC vs ESCC cells with resistance to the same specific chemotherapy agent.Amongst others,miR-27b-3p,miR-193b-3p,miR-192-5p,miR-378 a-3p,miR-125a-5p and miR-18a-3p were dysregulated,consistent with negative posttranscriptional control of KRAS,TYMS,ABCC3,CBL-B and ERBB2 expression via these miRNAs.CONCLUSION:The current study supports the hypothesis that microRNA expression has an impact on chemotherapy resistance in esophageal cancer. | Richard Hummel Corina Sie David I Watson Tingting Wang Alfiya Ansar Michael Z Michael Mark Van der Hoek Joerg Haier Damian J Hussey | 2014 | World Journal of Gastroenterology2014，20，40： | 8 |
| 6 | Adenosquamous carcinoma of the pancreas: Molecular characterization of 23 patients along with a literature review显示文摘Adenosquamous carcinoma of the pancreas(ASCP)is a rare entity. Like adenocarcinoma of the pancreas,overall survival is poor. Characteristics of ASCP include central tumor necrosis, along with osteoclasts and hypercalcemia. Various theories exist as to why this histological subtype exists, as normal pancreas tissue has no benign squamous epithelium. Due to the rarity of this disease, limited molecular analysis has been performed, and those reports indicate unique molecular features of ASCP. In this paper, we characterize 23 patients diagnosed with ASCP through molecular profiling using immunohistochemistry staining, fluorescent in situ hybridization, chromogenic in situ hybridization, and gene sequencing, Additionally, we provide a comprehensive literature review of what is known to date of ASCP.Molecular characterization revealed overexpression in MRP1(80%), MGMT(79%), TOP2A(75), RRM1(42%),TOPO1(42%), PTEN(45%), CMET(40%), and C-KIT(10%) among others. One hundred percent of samples tested were positive for KRAS mutations. This analysis shows heretofore unsuspected leads to be considered for treatments of this rare type of exocrine pancreas cancer. Molecular profiling may be appropriate to provide maximum information regarding the patient's tumor. Further work should be pursued to better characterize this disease. | Erkut Borazanci Sherri Z Millis Ron Korn Haiyong Han Clifford J Whatcott Zoran Gatalica Michael T Barrett Derek Cridebring Daniel D Von Hoff | 2015 | World Journal of Gastrointestinal Oncology2015，7，9： | 6 |
| 7 | Distal Pancreatectomy: Risk Factors for Surgical Failure in 302 Consecutive Cases显示文摘 | J?rg Kleeff Markus K. Diener Kaspar Z?graggen Ulf Hinz Markus Wagner Jeannine Bachmann J?rg Zehetner Michael W. Müller Helmut Friess Markus W. Büchler | 2007 | Annals of Surgery2007，，4： | 3 |
| 8 | Akt Promotes Cell Survival by Phosphorylating and Inhibiting a Forkhead Transcription Factor显示文摘 | Anne Brunet Azad Bonni Michael J Zigmond Michael Z Lin Peter Juo Linda S Hu Michael J Anderson Karen C Arden John Blenis Michael E Greenberg | 1999 | Cell1999，，6： | 2 |
| 9 | Endothelial vasodilator production by ovine uterine and systemic arteries:ovarian steroid and pregnancy control of ERα and ER β levels显示文摘 | Michael J B Amy Z Terrance M | 2005 | The Journal of Physiology2005，565，： | 1 |
| 10 | 1,3-diarylcycloalkanopyrazoles and diphenyl hydrazides as selective inhibitors of cyclooxygenase-2显示文摘 | Sui Z Guan J Michael P F | 2000 | Bioorg Med Chem Lett2000，10，6： | 1 |
| 11 | Thomashow components of the Arabidopsis C repeat/dehydration responsive element bindingfactor cold-response pathway are conserved in Brassica napus and other plant species显示文摘 | KIRSTEN R J SUSANNE K KEENAN L A XIN Z VOLKER H JAMES Z Z THOMAS D MICHAEL F | 2001 | Plant Plzysiology2001，127，3： | 1 |
| 12 | FGF23 induces left ventricular hypertrophy显示文摘 | Faul Christian Amaral Ansel P Oskouei Behzad Hu Ming-Chang Sloan Alexis Isakova Tamara Gutiérrez Orlando M Aguillon-Prada Robier Lincoln Joy Hare Joshua M Mundel Peter Morales Azorides Scialla Julia Fischer Michael Soliman Elsayed Z Chen J | 2011 | Journal of Clinical Investigation2011，，11： | 1 |
| 13 | 显示文摘 | Michael J Z | 1992 | J Chem Soc Chem Commun1992，，13： | 1 |
| 14 | Chloridation and oxidation of iron,chromium,nickel and their alloys in chloridizing and oxidizing atmospheres at 400-700℃显示文摘 | Armin Z Michael S Hans J G | 2000 | Corrosion Science2000，42，： | 1 |
| 15 | Real-time monitoring for detection of retained surgical sponges and team motion in the surgical operation room using radio-frequency-identification (RFID) technology:A preclinical evaluation显示文摘 | Michael K Dorit Z Thomas J | | 0，，： | 1 |
| 16 | Alteration of brain default network in subacute phase of injury in concussed individuals: Resting-state fMRI study显示文摘 | Brian J Kai Z Michael G | 2012 | Neuroimage2012，59，1： | 1 |
| 17 | Molecularly Imprinted Polymeric Nanospheres by Diblock Copolymer Self-Assembly显示文摘 | Li Z Ding J F Michael D | 2006 | Macromolecules2006，，39： | 1 |
| 18 | A view of cloud computing显示文摘 | MICHAEL A ARMANDO F REAN Q ANTHONY D J RANDY K ANDY K GUNHO L DAVID P ARIEL R ION S MATEI Z | 2010 | Communications of the ACM2010，53，4： | 1 |
| 19 | Design and synthes is of pyrimidinone and pyrimidinedione inhibitors of dipeptidyl peptidase IV 显示文摘 | ZHANG Z MICHAEL BW FENG J | 2011 | J Med Chem2011，54，2： | 1 |
| 20 | Knowledge-based vector space model for text clustering 显示文摘 | JING Liping MICHAEL K N HUANG J Z | 2009 | Knowledge and In- formation Systems2009，，10： | 1 |
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