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| 1 | Virulence factors of Enterococcus strains isolated from patients with inflammatory bowel disease显示文摘AIM: To determine the features of Enterococcus that contribute to the development and maintenance of the inflammatory process in patients with inflammatory bowel disease (IBD). METHODS: Multiplex polymerase chain reaction (PCR) was applied to assess the presence of genes that encode virulence factors [surface aggregating protein (asa1), gelatinase (gelE), cytolysin (cylA), extracellular surface protein (esp) and hyaluronidase (hyl)] in the genomic DNA of 28 strains of Enterococcus isolated from the intestinal tissues of children with IBD (n =16) and of children without IBD (controls; n = 12). Additionally, strains with confirmed presence of the gelE gene were tested by PCR for the presence of quorum sensing genes (fsrA, fsrB, fsrC) that control the gelatinase production. Gelatinase activity was tested on agar plates containing 1.6% gelatin. We also analysed the ability of Enterococcus strains to release and decompose hydrogen peroxide (using Analytical Merckoquant peroxide test strips) and tested their ability to adhere to Caco-2 human gut epithelium cells and form biofilms in vitro. RESULTS: A comparison of the genomes of Enterococcus strains isolated from the inflamed mucosa of patients with IBD with those of the control group showed statistically significant differences in the frequency of theasa1 gene and thegelE gene. Furthermore, the cumulative occurrence of different virulence genes in the genome of a single strain ofEnterococcus isolated from the IBD patient group is greater than in a strain from the control group, although no significant difference was found. Statistically significant differences in the decomposition of hydrogen peroxide and adherence to the Caco-2 epithelial cell line between the strains from the patient group and control group were demonstrated. The results also showed that profuse biofilm production was more frequent amongEnterococcus strains isolated from children with IBD than in control strains. CONCLUSION: Enterococcus strains that adhere strongly to the intestinal epithelium, form biofilms and possess antioxidant defence mechanisms seem to have the greatest influence on the inflammatory process. | Edyta Golińska Anna Tomusiak Tomasz Gosiewski Gra yna Wiecek Agnieszka Machul Diana Mikoajczyk Magorzata Bulanda Piotr B Heczko Magdalena Strus | 2013 | World Journal of Gastroenterology2013，19，23： | 8 |
| 2 | Burden of Clostridium difficile infection between 2010 and 2013:Trends and outcomes from an academic center in Eastern Europe显示文摘AIM:To analyze the incidence and possible risk factors in hospitalized patients treated with Clostridium difficile infection(CDI).METHODS:A total of 11751 patients were admitted to our clinic between 1 January 2010 and 1 May2013.Two hundred and forty-seven inpatients were prospectively diagnosed with CDI.For the risk analysis a 1:3 matching was used.Data of 732 patients matched for age,sex,and inpatient care period and unit were compared to those of the CDI population.Inpatient records were collected from an electronic hospital database and comprehensively reviewed.RESULTS:Incidence of CDI was 21.0/1000 admissions(2.1%of all-cause hospitalizations and 4.45%of total inpatient days).The incidence of severe CDI was 12.6%(2.63/1000 of all-cause hospitalizations).Distribution of CDI cases was different according to the unit type,with highest incidence rates in hematology,gastroenterology and nephrology units(32.9,25 and24.6/1000 admissions,respectively) and lowest rates in 1.4%(33/2312) in endocrinology and general internal medicine(14.2 and 16.9/1000 admissions)units.Recurrence of CDI was 11.3%within 12 wk after discharge.Duration of hospital stay was longer in patients with CDI compared to controls(17.6 ± 10.8d vs 12.4 ± 7.71 d).CDI accounted for 6.3%of allinpatient deaths,and 30-d mortality rate was 21.9%(54/247 cases).Risk factors for CDI were antibiotic therapy[including third-generation cephalosporins or fluoroquinolones,odds ratio(OR) = 4.559;P < 0.001],use of proton pump inhibitors(OR = 2.082,P< 0.001),previous hospitaiization within 12 mo(OR = 3.167,P < 0.001),previous CDI(OR = 15.32;P < 0.001),while presence of diabetes mellitus was associated with a decreased risk for CDI(OR = 0.484;P< 0.001).Treatment of recurrent cases was significantly different from primary infections with more frequent use of vancomycin alone or in combination(P < 0.001),and antibiotic therapy duration was longer(P < 0.02).Severity,mortality and outcome of primary infections and relapsing cases did not significantly differ.CONCLUSION:CDI was accounted for significant burden with longer hospitaiization and adverse outcomes.Antibiotic,PPI therapy and previous hospitaiization or CDI were risk factors for CDI. | Zsuzsanna Kurti Barbara D Lovasz Michael D Mandel Zoltan Csima Petra A Golovics Bence D Csako Anna Mohas Lorant Gnczi Krisztina B Gecse Lajos S Kiss Miklos Szathmari Peter L Lakatos | 2015 | World Journal of Gastroenterology2015，21，21： | 6 |
| 3 | Contribution of functional KIR3DL1 to ankylosing spondylitis显示文摘Increasing evidence points to a role for killer immunoglobulin-like receptors(KIRs)in the development of autoimmune diseases.In particular,a positive association of KIR3DS1(activating receptor)and a negative association of KIR3DL1(inhibitory receptor)alleles with ankylosing spondylitis(AS)have been reported by several groups.However,none of the studies analyzed these associations in the context of functionality of polymorphic KIR3DL1.To better understand how the KIR3DL1/3DS1 genes determine susceptibility to AS,we analyzed the frequencies of alleles and genotypes encoding functional(KIR3DL1*F)and non-functional(KIR3DL1*004)receptors.We genotyped 83 AS patients and 107 human leukocyte antigen(HLA)-B27-positive healthy controls from the Russian Caucasian population using a two-stage sequence-specific primer PCR,which distinguishes KIR3DS1,KIR3DL1*F and KIR3DL1*004 alleles.For the patients carrying two functional KIR3DL1 alleles,those alleles were additionally genotyped to identify KIR3DL1*005 and KIR3DL1*007 alleles,which are functional but are expressed at low levels.KIR3DL1 was negatively associated with AS at the expense of KIR3DL1*F but not of KIR3DL1*004.This finding indicates that the inhibitory KIR3DL1 receptor protects against the development of AS and is not simply a passive counterpart of the segregating KIR3DS1 allele encoding the activating receptor.However,analysis of genotype frequencies indicates that the presence of KIR3DS1 is a more important factor for AS susceptibility than the absence of KIR3DL1*F.The activation of either natural killer(NK)or T cells via the KIR3DS1 receptor can be one of the critical events in AS development,while the presence of the functional KIR3DL1 receptor has a protective effect.Nevertheless,even individuals with a genotype that carried two inhibitory KIR3DL1 alleles expressed at high levels could develop AS. | Ivan V Zvyagin Ilgar Z Mamedov Olga V Britanova Dmitriy B Staroverov Evgeni L Nasonov Anna G Bochkova Anna V Chkalina Alexei A Kotlobay Dmitriy O Korostin Denis V Rebrikov Sergey Lukyanov Yuri B Lebedev Dmitriy M Chudakov | 2010 | Cellular & Molecular Immunology2010，7，6： | 5 |
| 4 | Software for automated classification of probe-based confocal laser endomicroscopy videos of colorectal polyps显示文摘AIM:To support probe-based confocal laser endomi-croscopy (pCLE) diagnosis by designing software for the automated classification of colonic polyps. METHODS:Intravenous fluorescein pCLE imaging of colorectal lesions was performed on patients under-going screening and surveillance colonoscopies, followed by polypectomies. All resected specimens were reviewed by a reference gastrointestinal pathologist blinded to pCLE information. Histopathology was used as the criterion standard for the differentiation between neoplastic and non-neoplastic lesions. The pCLE video sequences, recorded for each polyp, were analyzed off-line by 2 expert endoscopists who were blinded to the endoscopic characteristics and histopathology. These pCLE videos, along with their histopathology diagnosis, were used to train the automated classification software which is a content-based image retrieval technique followed by k-nearest neighbor classification. The performance of the off-line diagnosis of pCLE videos established by the 2 expert endoscopists was compared with that of automated pCLE software classification. All evaluations were performed using leave-one-patient- out cross-validation to avoid bias. RESULTS:Colorectal lesions (135) were imaged in 71 patients. Based on histopathology, 93 of these 135 lesions were neoplastic and 42 were non-neoplastic. The study found no statistical significance for the difference between the performance of automated pCLE software classification (accuracy 89.6%, sensitivity 92.5%, specificity 83.3%, using leave-one-patient-out cross-validation) and the performance of the off-line diagnosis of pCLE videos established by the 2 expert endoscopists (accuracy 89.6%, sensitivity 91.4%, specificity 85.7%). There was very low power (< 6%) to detect the observed differences. The 95% confidence intervals for equivalence testing were:-0.073 to 0.073 for accuracy, -0.068 to 0.089 for sensitivity and -0.18 to 0.13 for specificity. The classification software proposed in this study is not a 'black box' but an informative tool based on the query by example model that produces, as intermediate results, visually similar annotated videos that are directly interpretable by the endoscopist. CONCLUSION:The proposed software for automated classification of pCLE videos of colonic polyps achieves high performance, comparable to that of off-line diagnosis of pCLE videos established by expert endoscopists. | Barbara André Tom Vercauteren Anna M Buchner Murli Krishna Nicholas Ayache Michael B Wallace | 2012 | World Journal of Gastroenterology2012，18，39： | 5 |
| 5 | 2013 ESH/ESC Guidelines for the management of arterial hypertension显示文摘 | Giuseppe Mancia Robert Fagard Krzysztof Narkiewicz Josep Redon Alberto Zanchetti Michael B?hm Thierry Christiaens Renata Cifkova Guy De Backer Anna Dominiczak Maurizio Galderisi Diederick E. Grobbee Tiny Jaarsma Paulus Kirchhof Sverre E. Kjeldsen Stéphane | 2013 | European Heart Journal2013，，28： | 5 |
| 6 | Muc2-Deficient Mice Spontaneously Develop Colitis, Indicating That MUC2 Is Critical for Colonic Protection显示文摘 | Maria Van der Sluis Barbara A.E. De Koning Adrianus C.J.M. De Bruijn Anna Velcich Jules P.P. Meijerink Johannes B. Van Goudoever Hans A. Büller Jan Dekker Isabelle Van Seuningen Ingrid B. Renes Alexandra W.C. Einerhand | 2006 | Gastroenterology2006，，1： | 3 |
| 7 | Carvedilol for primary prophylaxis of variceal bleeding in cirrhotic patients with haemodynamic non-response to propranolol显示文摘 | Thomas Reiberger Gregor Ulbrich Arnulf Ferlitsch Berit Anna Payer Philipp Schwabl Matthias Pinter Birgit B Heinisch Michael Trauner Ludwig Kramer Markus Peck-Radosavljevic | 2013 | Gut2013，，11： | 2 |
| 8 | Circulating miR-29a, Among Other Up-Regulated MicroRNAs, Is the Only Biomarker for Both Hypertrophy and Fibrosis in Patients With Hypertrophic Cardiomyopathy显示文摘 | Roberta Roncarati Chiara Viviani Anselmi Maria Angela Losi Laura Papa Elena Cavarretta Paula Da Costa Martins Carla Contaldi Gloria Saccani Jotti Anna Franzone Laura Galastri Michael V.G. Latronico Massimo Imbriaco Giovanni Esposito Leon De Windt Sandro B | 2014 | Journal of the American College of Cardiology2014，，9： | 2 |
| 9 | Evaluation of benzo(a)pyrene-induced DNA damage in human endothelial cells using alkaline single cell gel electrophoresis显示文摘 | Annas A Brittebo E Hellman B | 2000 | Mutat Res2000，471，12： | 2 |
| 10 | Dissociated Functional Brain Abnormalities of Inhibition in Boys With Pure Conduct Disorder and in Boys With Pure Attention Deficit Hyperactivity Disorder显示文摘 | Rubia Katya Halari Rozmin Smith Anna B Mohammed Majeed Scott Steven Giampietro Vincent Taylor Eric Brammer Michael J | 2008 | The American Journal of Psychiatry2008，，7： | 1 |
| 11 | Hepatitis B virus DNA in serum of helthy black African adults positive for hepatitis B surface antibody alone: possible association with recombination between genotypes A and D显示文摘 | Owiredu B A Anna K | 2001 | J Med Virol2001，64，： | 1 |
| 12 | Eph-ephrin signalling in adult tissues and cancer 显示文摘 | ANNA M S EDUARD B | 2008 | Curr Opin Cell Biol2008，20，1： | 1 |
| 13 | Induction of macrophage nitric oxide production by gram-negative flagellin involves signaling via heteromeric Toll-like receptor 5/Toll-like receptor 4 complexes显示文摘 | MIZEL S B ANNA N H MARLENA A M | 2003 | The Journal of Immunology2003，170，： | 1 |
| 14 | Enzyme hydrolysis of babassu oil in a membrane bioreactor 显示文摘 | Meron F B Anna J G L S Nobrcga R | 2000 | Journal of the American Oil Chemists'' Society2000，77，10： | 1 |
| 15 | Solid-phase extraction on sorbents of different retention mechanisms followed by determination by gas chromatography-mass spectrometric and gas chromatography-electron capture detection of pesticide residues in crops 显示文摘 | Anna B Rositsa M Deyana S | 2007 | Journal of Chromatography A2007，1150，12： | 1 |
| 16 | Molecular components of coal and coal structure显示文摘 | Danuta B Anna M | 1981 | Fuel1981，60，： | 1 |
| 17 | MCM41 functionalized with ethylenediaminetriacetic acid for ion-exchange chromatography 显示文摘 | Maria C B Corrado S Anna M T | 2011 | Journal of Materials Chemistry2011，21，： | 1 |
| 18 | Fibroblast Growth Factor 23, Bone Mineral Density, and Risk of Hip Fracture Among Older Adults: The Cardiovascular Health Study显示文摘 | Anna Jovanovich Petra Bù?ková Michel Chonchol John Robbins Howard A. Fink Ian H. de Boer Bryan Kestenbaum Ronit Katz Laura Carbone Jennifer Lee Gail A. Laughlin Kenneth J. Mukamal Linda F. Fried Michael G. Shlipak Joachim H. Ix | 2013 | The Journal of Clinical Endocrinology & Metabolism2013，，8： | 1 |
| 19 | Alternative nuclear functions for NF-KB family members显示文摘 | Llufs E Anna B Maria C M | 2011 | Am J Cancer Res2011，1，4： | 1 |
| 20 | Evaluation of a MBR-RO system to produce high quality reuse water:microbial control,DBP formation and nitrate显示文摘 | Anna M C Robert C A David M B | 2005 | Water research2005，39，16： | 1 |
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