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Items: 1 to 50 of 127

1.

Targeting the Wnt/β-catenin pathway in human osteosarcoma cells.

Fang F, VanCleave A, Helmuth R, Torres H, Rickel K, Wollenzien H, Sun H, Zeng E, Zhao J, Tao J.

Oncotarget. 2018 Dec 4;9(95):36780-36792. doi: 10.18632/oncotarget.26377. eCollection 2018 Dec 4.

2.

Spread and persistence of VIM-1 Carbapenemase-producing Enterobacteriaceae in three German swine farms in 2011 and 2012.

Fischer J, San José M, Roschanski N, Schmoger S, Baumann B, Irrgang A, Friese A, Roesler U, Helmuth R, Guerra B.

Vet Microbiol. 2017 Feb;200:118-123. doi: 10.1016/j.vetmic.2016.04.026. Epub 2016 May 7.

PMID:
27234907
3.

Diversity of STs, plasmids and ESBL genes among Escherichia coli from humans, animals and food in Germany, the Netherlands and the UK.

Day MJ, Rodríguez I, van Essen-Zandbergen A, Dierikx C, Kadlec K, Schink AK, Wu G, Chattaway MA, DoNascimento V, Wain J, Helmuth R, Guerra B, Schwarz S, Threlfall J, Woodward MJ, Coldham N, Mevius D, Woodford N.

J Antimicrob Chemother. 2016 May;71(5):1178-82. doi: 10.1093/jac/dkv485. Epub 2016 Jan 23.

PMID:
26803720
4.

Comparative genome analysis of IncHI2 VIM-1 carbapenemase-encoding plasmids of Escherichia coli and Salmonella enterica isolated from a livestock farm in Germany.

Falgenhauer L, Ghosh H, Guerra B, Yao Y, Fritzenwanker M, Fischer J, Helmuth R, Imirzalioglu C, Chakraborty T.

Vet Microbiol. 2017 Feb;200:114-117. doi: 10.1016/j.vetmic.2015.09.001. Epub 2015 Sep 9.

PMID:
26411323
5.

IncA/C Plasmid Carrying bla(NDM-1), bla(CMY-16), and fosA3 in a Salmonella enterica Serovar Corvallis Strain Isolated from a Migratory Wild Bird in Germany.

Villa L, Guerra B, Schmoger S, Fischer J, Helmuth R, Zong Z, García-Fernández A, Carattoli A.

Antimicrob Agents Chemother. 2015 Oct;59(10):6597-600. doi: 10.1128/AAC.00944-15. Epub 2015 Jul 13.

6.

[Increase in antimicrobial resistance of Salmonella from food to fluoroquinolones and cephalosporins--a review of data from ten years].

Tenhagen BA, Schroeter A, Szabo I, Dorn C, Appel B, Helmuth R, Käsbohrer A.

Berl Munch Tierarztl Wochenschr. 2014 Nov-Dec;127(11-12):428-34. German.

PMID:
25872252
7.

Characterization of illegal food items and identification of foodborne pathogens brought into the European Union via two major German airports.

Beutlich J, Hammerl JA, Appel B, Nöckler K, Helmuth R, Jöst K, Ludwig ML, Hanke C, Bechtold D, Mayer-Scholl A.

Int J Food Microbiol. 2015 Sep 16;209:13-9. doi: 10.1016/j.ijfoodmicro.2014.10.017. Epub 2014 Oct 24.

PMID:
25454792
8.

Evidence of evolving extraintestinal enteroaggregative Escherichia coli ST38 clone.

Chattaway MA, Jenkins C, Ciesielczuk H, Day M, DoNascimento V, Day M, Rodríguez I, van Essen-Zandbergen A, Schink AK, Wu G, Threlfall J, Woodward MJ, Coldham N, Kadlec K, Schwarz S, Dierikx C, Guerra B, Helmuth R, Mevius D, Woodford N, Wain J.

Emerg Infect Dis. 2014 Nov;20(11):1935-7. doi: 10.3201/eid2011.131845. No abstract available.

9.

Subgrouping of ESBL-producing Escherichia coli from animal and human sources: an approach to quantify the distribution of ESBL types between different reservoirs.

Valentin L, Sharp H, Hille K, Seibt U, Fischer J, Pfeifer Y, Michael GB, Nickel S, Schmiedel J, Falgenhauer L, Friese A, Bauerfeind R, Roesler U, Imirzalioglu C, Chakraborty T, Helmuth R, Valenza G, Werner G, Schwarz S, Guerra B, Appel B, Kreienbrock L, Käsbohrer A.

Int J Med Microbiol. 2014 Oct;304(7):805-16. doi: 10.1016/j.ijmm.2014.07.015. Epub 2014 Aug 2.

10.

blaCTX-M-₁₅-carrying Escherichia coli and Salmonella isolates from livestock and food in Germany.

Fischer J, Rodríguez I, Baumann B, Guiral E, Beutin L, Schroeter A, Kaesbohrer A, Pfeifer Y, Helmuth R, Guerra B.

J Antimicrob Chemother. 2014 Nov;69(11):2951-8. doi: 10.1093/jac/dku270. Epub 2014 Jul 28.

PMID:
25074857
11.

Chromosomal location of blaCTX-M genes in clinical isolates of Escherichia coli from Germany, The Netherlands and the UK.

Rodríguez I, Thomas K, Van Essen A, Schink AK, Day M, Chattaway M, Wu G, Mevius D, Helmuth R, Guerra B; SAFEFOODERA-ESBL consortium.

Int J Antimicrob Agents. 2014 Jun;43(6):553-7. doi: 10.1016/j.ijantimicag.2014.02.019. Epub 2014 Apr 16.

PMID:
24816185
12.

An emerging public health problem: acquired carbapenemase-producing microorganisms are present in food-producing animals, their environment, companion animals and wild birds.

Guerra B, Fischer J, Helmuth R.

Vet Microbiol. 2014 Jul 16;171(3-4):290-7. doi: 10.1016/j.vetmic.2014.02.001. Epub 2014 Feb 15. Review.

PMID:
24629777
13.

Diversity of plasmids encoding virulence and resistance functions in Salmonella enterica subsp. enterica serovar Typhimurium monophasic variant 4,[5],12:i:- strains circulating in Europe.

García P, Hopkins KL, García V, Beutlich J, Mendoza MC, Threlfall J, Mevius D, Helmuth R, Rodicio MR, Guerra B; Med-Vet-Net WP21 Project Group.

PLoS One. 2014 Feb 26;9(2):e89635. doi: 10.1371/journal.pone.0089635. eCollection 2014.

14.

Molecular epidemiology of Salmonella enterica serovar Kottbus isolated in Germany from humans, food and animals.

Toboldt A, Tietze E, Helmuth R, Junker E, Fruth A, Malorny B.

Vet Microbiol. 2014 May 14;170(1-2):97-108. doi: 10.1016/j.vetmic.2014.01.020. Epub 2014 Feb 4.

PMID:
24559660
15.

Comparative analysis of ESBL-positive Escherichia coli isolates from animals and humans from the UK, The Netherlands and Germany.

Wu G, Day MJ, Mafura MT, Nunez-Garcia J, Fenner JJ, Sharma M, van Essen-Zandbergen A, Rodríguez I, Dierikx C, Kadlec K, Schink AK, Chattaway M, Wain J, Helmuth R, Guerra B, Schwarz S, Threlfall J, Woodward MJ, Woodford N, Coldham N, Mevius D.

PLoS One. 2013 Sep 26;8(9):e75392. doi: 10.1371/journal.pone.0075392. eCollection 2013. Erratum in: PLoS One. 2014;9(9):e108834. Chattaway, Marie [added].

16.

NDM-1 carbapenemase-producing Salmonella enterica subsp. enterica serovar Corvallis isolated from a wild bird in Germany.

Fischer J, Schmoger S, Jahn S, Helmuth R, Guerra B.

J Antimicrob Chemother. 2013 Dec;68(12):2954-6. doi: 10.1093/jac/dkt260. Epub 2013 Jun 30. No abstract available.

PMID:
23818284
17.

Salmonella enterica serovar Typhimurium virulence-resistance plasmids derived from the pSLT carrying nonconventional class 1 integrons with dfrA12 gene in their variable region and sul3 in the 3' conserved segment.

Beutlich J, Rodicio MR, Mendoza MC, García P, Kirchner M, Luzzi I, Mevius D, Threlfall J, Helmuth R, Guerra B; Med-Vet-Net WP21 Project Group.

Microb Drug Resist. 2013 Dec;19(6):437-45. doi: 10.1089/mdr.2012.0226. Epub 2013 Jun 29.

PMID:
23808958
18.

Population structure of Salmonella enterica serovar 4,[5],12:b:- strains and likely sources of human infection.

Toboldt A, Tietze E, Helmuth R, Junker E, Fruth A, Malorny B.

Appl Environ Microbiol. 2013 Sep;79(17):5121-9. doi: 10.1128/AEM.01735-13. Epub 2013 Jun 21.

19.

Characterisation of plasmids implicated in the mobilisation of extended-spectrum and AmpC β-lactamase genes in clinical Salmonella enterica isolates and temporal stability of the resistance genotype.

de Toro M, García P, Rodríguez I, Rojo-Bezares B, Helmuth R, Sáenz Y, Rodicio MR, Guerra B, Torres C.

Int J Antimicrob Agents. 2013 Aug;42(2):167-72. doi: 10.1016/j.ijantimicag.2013.04.016. Epub 2013 May 23.

PMID:
23706977
20.

pMdT1, a small ColE1-like plasmid mobilizing a new variant of the aac(6')-Ib-cr gene in Salmonella enterica serovar Typhimurium.

de Toro M, Rodríguez I, Rojo-Bezares B, Helmuth R, Torres C, Guerra B, Sáenz Y.

J Antimicrob Chemother. 2013 Jun;68(6):1277-80. doi: 10.1093/jac/dkt001. Epub 2013 Jan 29.

PMID:
23361643
21.

Detection of pathogens in Boidae and Pythonidae with and without respiratory disease.

Schmidt V, Marschang RE, Abbas MD, Ball I, Szabo I, Helmuth R, Plenz B, Spergser J, Pees M.

Vet Rec. 2013 Mar 2;172(9):236. doi: 10.1136/vr.100972. Epub 2013 Jan 15.

PMID:
23322542
22.

Salmonella enterica subsp. enterica producing VIM-1 carbapenemase isolated from livestock farms.

Fischer J, Rodríguez I, Schmoger S, Friese A, Roesler U, Helmuth R, Guerra B.

J Antimicrob Chemother. 2013 Feb;68(2):478-80. doi: 10.1093/jac/dks393. Epub 2012 Oct 2. No abstract available.

PMID:
23034713
23.

Human infections attributable to the D-tartrate-fermenting variant of Salmonella enterica serovar Paratyphi B in Germany originate in reptiles and, on rare occasions, poultry.

Toboldt A, Tietze E, Helmuth R, Fruth A, Junker E, Malorny B.

Appl Environ Microbiol. 2012 Oct;78(20):7347-57. Epub 2012 Aug 10.

24.

[Highly ciprofloxacin resistant Salmonella enterica serovar Kentucky isolates in turkey meat and a human patient].

Beutlich J, Guerra B, Schroeter A, Arvand M, Szabo I, Helmuth R.

Berl Munch Tierarztl Wochenschr. 2012 Mar-Apr;125(3-4):89-95. German.

PMID:
22515025
25.

Escherichia coli producing VIM-1 carbapenemase isolated on a pig farm.

Fischer J, Rodríguez I, Schmoger S, Friese A, Roesler U, Helmuth R, Guerra B.

J Antimicrob Chemother. 2012 Jul;67(7):1793-5. doi: 10.1093/jac/dks108. Epub 2012 Mar 27. No abstract available.

PMID:
22454489
26.

Clonal dissemination of Salmonella enterica serovar Infantis in Germany.

Hauser E, Tietze E, Helmuth R, Junker E, Prager R, Schroeter A, Rabsch W, Fruth A, Toboldt A, Malorny B.

Foodborne Pathog Dis. 2012 Apr;9(4):352-60. doi: 10.1089/fpd.2011.1038. Epub 2012 Mar 8.

PMID:
22401270
27.

Extended-spectrum β-lactamases in German isolates belonging to the emerging monophasic Salmonella enterica subsp. enterica serovar Typhimurium 4,[5],12:i:- European clone.

Rodríguez I, Jahn S, Schroeter A, Malorny B, Helmuth R, Guerra B.

J Antimicrob Chemother. 2012 Feb;67(2):505-8. doi: 10.1093/jac/dkr452. Epub 2011 Nov 4. No abstract available.

PMID:
22058374
28.

[Report on Salmonella isolates submitted to the German National Reference Laboratory for running analyses and tests on zoonoses (Salmonella) in the year 2009].

Friedrich A, Szabo I, Dorn C, Schroeter A, Jaber M, Berendonk G, Brom M, Ledwolorz J, Malorny B, Helmuth R.

Berl Munch Tierarztl Wochenschr. 2011 Sep-Oct;124(9-10):401-10. German.

PMID:
21950218
29.

Diversity of Salmonella enterica serovar Derby isolated from pig, pork and humans in Germany.

Hauser E, Hebner F, Tietze E, Helmuth R, Junker E, Prager R, Schroeter A, Rabsch W, Fruth A, Malorny B.

Int J Food Microbiol. 2011 Dec 2;151(2):141-9. doi: 10.1016/j.ijfoodmicro.2011.08.020. Epub 2011 Aug 27.

PMID:
21917347
30.

Antimicrobial resistance and virulence determinants in European Salmonella genomic island 1-positive Salmonella enterica isolates from different origins.

Beutlich J, Jahn S, Malorny B, Hauser E, Hühn S, Schroeter A, Rodicio MR, Appel B, Threlfall J, Mevius D, Helmuth R, Guerra B; Med-Vet-Net WP21 Project Group.

Appl Environ Microbiol. 2011 Aug 15;77(16):5655-64. doi: 10.1128/AEM.00425-11. Epub 2011 Jun 24.

31.

Virulence and resistance determinants of German Staphylococcus aureus ST398 isolates from nonhuman sources.

Argudín MA, Tenhagen BA, Fetsch A, Sachsenröder J, Käsbohrer A, Schroeter A, Hammerl JA, Hertwig S, Helmuth R, Bräunig J, Mendoza MC, Appel B, Rodicio MR, Guerra B.

Appl Environ Microbiol. 2011 May;77(9):3052-60. doi: 10.1128/AEM.02260-10. Epub 2011 Mar 4.

32.

Different mutations in the oafA gene lead to loss of O5-antigen expression in Salmonella enterica serovar Typhimurium.

Hauser E, Junker E, Helmuth R, Malorny B.

J Appl Microbiol. 2011 Jan;110(1):248-53. doi: 10.1111/j.1365-2672.2010.04877.x. Epub 2010 Oct 21.

33.

Evolution and population structure of Salmonella enterica serovar Newport.

Sangal V, Harbottle H, Mazzoni CJ, Helmuth R, Guerra B, Didelot X, Paglietti B, Rabsch W, Brisse S, Weill FX, Roumagnac P, Achtman M.

J Bacteriol. 2010 Dec;192(24):6465-76. doi: 10.1128/JB.00969-10. Epub 2010 Oct 8.

34.

Use of multiple-locus variable-number tandem-repeats analysis (MLVA) typing to characterize Salmonella Typhimurium DT41 broiler breeder infections.

Litrup E, Christensen H, Nordentoft S, Nielsen EM, Davies RH, Helmuth R, Bisgaard M.

J Appl Microbiol. 2010 Dec;109(6):2032-8. doi: 10.1111/j.1365-2672.2010.04833.x.

35.

[Report on Salmonella isolates in livestock, food and feed, received at the German national reference laboratory for Salmonella during 2004-2008].

Friedrich A, Dorn C, Schroeter A, Szabo I, Jaber M, Berendonk G, Brom M, Ledwolorz J, Helmuth R.

Berl Munch Tierarztl Wochenschr. 2010 Jul-Aug;123(7-8):265-77. German.

PMID:
20690538
36.

Plasmid-mediated quinolone resistance determinants in Salmonella spp. isolates from reptiles in Germany.

Guerra B, Helmuth R, Thomas K, Beutlich J, Jahn S, Schroeter A.

J Antimicrob Chemother. 2010 Sep;65(9):2043-5. doi: 10.1093/jac/dkq242. Epub 2010 Jul 1. No abstract available.

PMID:
20601355
37.

Pork contaminated with Salmonella enterica serovar 4,[5],12:i:-, an emerging health risk for humans.

Hauser E, Tietze E, Helmuth R, Junker E, Blank K, Prager R, Rabsch W, Appel B, Fruth A, Malorny B.

Appl Environ Microbiol. 2010 Jul;76(14):4601-10. doi: 10.1128/AEM.02991-09. Epub 2010 May 14.

38.

A predominant multidrug-resistant Salmonella enterica serovar Saintpaul clonal line in German turkey and related food products.

Beutlich J, Rodríguez I, Schroeter A, Käsbohrer A, Helmuth R, Guerra B.

Appl Environ Microbiol. 2010 Jun;76(11):3657-67. doi: 10.1128/AEM.02744-09. Epub 2010 Apr 2.

39.

Virulotyping and antimicrobial resistance typing of Salmonella enterica serovars relevant to human health in Europe.

Huehn S, La Ragione RM, Anjum M, Saunders M, Woodward MJ, Bunge C, Helmuth R, Hauser E, Guerra B, Beutlich J, Brisabois A, Peters T, Svensson L, Madajczak G, Litrup E, Imre A, Herrera-Leon S, Mevius D, Newell DG, Malorny B.

Foodborne Pathog Dis. 2010 May;7(5):523-35. doi: 10.1089/fpd.2009.0447.

PMID:
20039795
40.

High heterogeneity within methicillin-resistant Staphylococcus aureus ST398 isolates, defined by Cfr9I macrorestriction-pulsed-field gel electrophoresis profiles and spa and SCCmec types.

Argudín MA, Fetsch A, Tenhagen BA, Hammerl JA, Hertwig S, Kowall J, Rodicio MR, Käsbohrer A, Helmuth R, Schroeter A, Mendoza MC, Bräunig J, Appel B, Guerra B.

Appl Environ Microbiol. 2010 Feb;76(3):652-8. doi: 10.1128/AEM.01721-09. Epub 2009 Dec 18.

41.

pSGI15, a small ColE-like qnrB19 plasmid of a Salmonella enterica serovar Typhimurium strain carrying Salmonella genomic island 1 (SGI1).

Hammerl JA, Beutlich J, Hertwig S, Mevius D, Threlfall EJ, Helmuth R, Guerra B.

J Antimicrob Chemother. 2010 Jan;65(1):173-5. doi: 10.1093/jac/dkp383. No abstract available.

PMID:
19861336
42.

[Characterisation of a phenotypic monophasic variant belonging to Salmonella enterica subsp. enterica serovar Typhimurium from wild birds and its possible transmission to cats and humans].

Hauser E, Hühn S, Junker E, Jaber M, Schroeter A, Helmuth R, Rabsch W, Winterhoff N, Malorny B.

Berl Munch Tierarztl Wochenschr. 2009 May-Jun;122(5-6):169-77. German.

PMID:
19517930
43.

Extended-spectrum {beta}-lactamases and AmpC {beta}-lactamases in ceftiofur-resistant Salmonella enterica isolates from food and livestock obtained in Germany during 2003-07.

Rodríguez I, Barownick W, Helmuth R, Mendoza MC, Rodicio MR, Schroeter A, Guerra B.

J Antimicrob Chemother. 2009 Aug;64(2):301-9. doi: 10.1093/jac/dkp195. Epub 2009 May 27.

PMID:
19474065
44.

Characterization of pathogenic and resistant genome repertoire reveals two clonal lines in Salmonella enterica subsp. enterica serovar Paratyphi B (+)-tartrate positive.

Huehn S, Helmuth R, Bunge C, Guerra B, Junker E, Davies RH, Wattiau P, van Pelt W, Malorny B.

Foodborne Pathog Dis. 2009 May;6(4):431-43. doi: 10.1089/fpd.2008.0221.

PMID:
19292689
45.

[Tasks and duties of veterinary reference laboratories for food borne zoonoses].

Ellerbroek L, Alter T, Johne R, Nöckler K, Beutin L, Helmuth R.

Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz. 2009 Feb;52(2):208-13. doi: 10.1007/s00103-009-0765-0. German.

PMID:
19271255
46.

Poultry-associated Salmonella enterica subsp. enterica serovar 4,12:d:- reveals high clonality and a distinct pathogenicity gene repertoire.

Huehn S, Bunge C, Junker E, Helmuth R, Malorny B.

Appl Environ Microbiol. 2009 Feb;75(4):1011-20. doi: 10.1128/AEM.02187-08. Epub 2008 Dec 29.

47.

Rapid classification and identification of salmonellae at the species and subspecies levels by whole-cell matrix-assisted laser desorption ionization-time of flight mass spectrometry .

Dieckmann R, Helmuth R, Erhard M, Malorny B.

Appl Environ Microbiol. 2008 Dec;74(24):7767-78. doi: 10.1128/AEM.01402-08. Epub 2008 Oct 24.

48.

Multi-locus variable-number tandem repeat analysis for outbreak studies of Salmonella enterica serotype Enteritidis.

Malorny B, Junker E, Helmuth R.

BMC Microbiol. 2008 May 30;8:84. doi: 10.1186/1471-2180-8-84.

49.

Plasmid-mediated quinolone resistance conferred by qnrS1 in Salmonella enterica serovar Virchow isolated from Turkish food of avian origin.

Avsaroglu MD, Helmuth R, Junker E, Hertwig S, Schroeter A, Akcelik M, Bozoglu F, Guerra B.

J Antimicrob Chemother. 2007 Nov;60(5):1146-50. Epub 2007 Sep 19.

PMID:
17881633
50.

[Ring-trial results for the cultural detection of Salmonella in poultry faeces].

Malorny B, Dorn C, Schroeter A, Käsbohrer A, Helmuth R.

Berl Munch Tierarztl Wochenschr. 2007 Jul-Aug;120(7-8):334-9. German.

PMID:
17715826

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