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Items: 33

1.

OXA-48-Mediated Ceftazidime-Avibactam Resistance Is Associated with Evolutionary Trade-Offs.

Fröhlich C, Sørum V, Thomassen AM, Johnsen PJ, Leiros HS, Samuelsen Ø.

mSphere. 2019 Mar 27;4(2). pii: e00024-19. doi: 10.1128/mSphere.00024-19.

2.

Conserved collateral antibiotic susceptibility networks in diverse clinical strains of Escherichia coli.

Podnecky NL, Fredheim EGA, Kloos J, Sørum V, Primicerio R, Roberts AP, Rozen DE, Samuelsen Ø, Johnsen PJ.

Nat Commun. 2018 Sep 10;9(1):3673. doi: 10.1038/s41467-018-06143-y.

3.

Costs and benefits of natural transformation in Acinetobacter baylyi.

Hülter N, Sørum V, Borch-Pedersen K, Liljegren MM, Utnes AL, Primicerio R, Harms K, Johnsen PJ.

BMC Microbiol. 2017 Feb 15;17(1):34. doi: 10.1186/s12866-017-0953-2.

4.

Substitutions of short heterologous DNA segments of intragenomic or extragenomic origins produce clustered genomic polymorphisms.

Harms K, Lunnan A, Hülter N, Mourier T, Vinner L, Andam CP, Marttinen P, Fridholm H, Hansen AJ, Hanage WP, Nielsen KM, Willerslev E, Johnsen PJ.

Proc Natl Acad Sci U S A. 2016 Dec 27;113(52):15066-15071. doi: 10.1073/pnas.1615819114. Epub 2016 Dec 12.

5.

No effect of natural transformation on the evolution of resistance to bacteriophages in the Acinetobacter baylyi model system.

McLeman A, Sierocinski P, Hesse E, Buckling A, Perron G, Hülter N, Johnsen PJ, Vos M.

Sci Rep. 2016 Nov 21;6:37144. doi: 10.1038/srep37144.

6.

Steady at the wheel: conservative sex and the benefits of bacterial transformation.

Ambur OH, Engelstädter J, Johnsen PJ, Miller EL, Rozen DE.

Philos Trans R Soc Lond B Biol Sci. 2016 Oct 19;371(1706). pii: 20150528. doi: 10.1098/rstb.2015.0528. Review.

7.

Low biological cost of carbapenemase-encoding plasmids following transfer from Klebsiella pneumoniae to Escherichia coli.

Di Luca MC, Sørum V, Starikova I, Kloos J, Hülter N, Naseer U, Johnsen PJ, Samuelsen Ø.

J Antimicrob Chemother. 2017 Jan;72(1):85-89. Epub 2016 Sep 2.

PMID:
27591293
8.

Distribution of class 1 integrons in a highly impacted catchment.

Borruso L, Harms K, Johnsen PJ, Nielsen KM, Brusetti L.

Sci Total Environ. 2016 Oct 1;566-567:1588-1594. doi: 10.1016/j.scitotenv.2016.06.054. Epub 2016 Jun 14.

PMID:
27312274
9.

The evolutionary dynamics of integrons in changing environments.

Engelstädter J, Harms K, Johnsen PJ.

ISME J. 2016 Jun;10(6):1296-307. doi: 10.1038/ismej.2015.222. Epub 2016 Feb 5.

10.

Growth phase-specific evolutionary benefits of natural transformation in Acinetobacter baylyi.

Utnes AL, Sørum V, Hülter N, Primicerio R, Hegstad J, Kloos J, Nielsen KM, Johnsen PJ.

ISME J. 2015 Oct;9(10):2221-31. doi: 10.1038/ismej.2015.35. Epub 2015 Apr 7.

11.

Persistence of a pKPN3-like CTX-M-15-encoding IncFIIK plasmid in a Klebsiella pneumonia ST17 host during two years of intestinal colonization.

Löhr IH, Hülter N, Bernhoff E, Johnsen PJ, Sundsfjord A, Naseer U.

PLoS One. 2015 Mar 4;10(3):e0116516. doi: 10.1371/journal.pone.0116516. eCollection 2015.

12.

A model-guided analysis and perspective on the evolution and epidemiology of antibiotic resistance and its future.

Levin BR, Baquero F, Johnsen PJ.

Curr Opin Microbiol. 2014 Jun;19:83-89. doi: 10.1016/j.mib.2014.06.004. Epub 2014 Jul 11.

13.

Gene transfer potential of outer membrane vesicles of Acinetobacter baylyi and effects of stress on vesiculation.

Fulsundar S, Harms K, Flaten GE, Johnsen PJ, Chopade BA, Nielsen KM.

Appl Environ Microbiol. 2014 Jun;80(11):3469-83. doi: 10.1128/AEM.04248-13. Epub 2014 Mar 21.

14.

Bacterial natural transformation by highly fragmented and damaged DNA.

Overballe-Petersen S, Harms K, Orlando LA, Mayar JV, Rasmussen S, Dahl TW, Rosing MT, Poole AM, Sicheritz-Ponten T, Brunak S, Inselmann S, de Vries J, Wackernagel W, Pybus OG, Nielsen R, Johnsen PJ, Nielsen KM, Willerslev E.

Proc Natl Acad Sci U S A. 2013 Dec 3;110(49):19860-5. doi: 10.1073/pnas.1315278110. Epub 2013 Nov 18.

15.

Costly Class-1 integrons and the domestication of the the functional integrase.

Harms K, Starikova I, Johnsen PJ.

Mob Genet Elements. 2013 Mar 1;3(2):e24774.

16.

Fitness costs of various mobile genetic elements in Enterococcus faecium and Enterococcus faecalis.

Starikova I, Al-Haroni M, Werner G, Roberts AP, Sørum V, Nielsen KM, Johnsen PJ.

J Antimicrob Chemother. 2013 Dec;68(12):2755-65. doi: 10.1093/jac/dkt270. Epub 2013 Jul 5.

17.

A trade-off between the fitness cost of functional integrases and long-term stability of integrons.

Starikova I, Harms K, Haugen P, Lunde TT, Primicerio R, Samuelsen Ø, Nielsen KM, Johnsen PJ.

PLoS Pathog. 2012;8(11):e1003043. doi: 10.1371/journal.ppat.1003043. Epub 2012 Nov 29.

18.

Natural transformation facilitates transfer of transposons, integrons and gene cassettes between bacterial species.

Domingues S, Harms K, Fricke WF, Johnsen PJ, da Silva GJ, Nielsen KM.

PLoS Pathog. 2012;8(8):e1002837. doi: 10.1371/journal.ppat.1002837. Epub 2012 Aug 2.

19.

Improved burns therapy: liposomes-in-hydrogel delivery system for mupirocin.

Hurler J, Berg OA, Skar M, Conradi AH, Johnsen PJ, Skalko-Basnet N.

J Pharm Sci. 2012 Oct;101(10):3906-15. doi: 10.1002/jps.23260. Epub 2012 Jul 9.

PMID:
22777770
20.

Retrospective evidence for a biological cost of vancomycin resistance determinants in the absence of glycopeptide selective pressures.

Johnsen PJ, Townsend JP, Bøhn T, Simonsen GS, Sundsfjord A, Nielsen KM.

J Antimicrob Chemother. 2011 Mar;66(3):608-10. doi: 10.1093/jac/dkq512. Epub 2011 Jan 7.

21.

Tn1546 is part of a larger plasmid-encoded genetic unit horizontally disseminated among clonal Enterococcus faecium lineages.

Sletvold H, Johnsen PJ, Wikmark OG, Simonsen GS, Sundsfjord A, Nielsen KM.

J Antimicrob Chemother. 2010 Sep;65(9):1894-906. doi: 10.1093/jac/dkq219. Epub 2010 Jun 17.

22.

Adjusting to alien genes.

Johnsen PJ, Levin BR.

Mol Microbiol. 2010 Mar;75(5):1061-3. doi: 10.1111/j.1365-2958.2010.07075.x. Epub 2010 Feb 8.

23.

PCR-based plasmid typing in Enterococcus faecium strains reveals widely distributed pRE25-, pRUM-, pIP501- and pHTbeta-related replicons associated with glycopeptide resistance and stabilizing toxin-antitoxin systems.

Rosvoll TC, Pedersen T, Sletvold H, Johnsen PJ, Sollid JE, Simonsen GS, Jensen LB, Nielsen KM, Sundsfjord A.

FEMS Immunol Med Microbiol. 2010 Mar;58(2):254-68. doi: 10.1111/j.1574-695X.2009.00633.x. Epub 2009 Nov 17.

24.

Sexual isolation in Acinetobacter baylyi is locus-specific and varies 10,000-fold over the genome.

Ray JL, Harms K, Wikmark OG, Starikova I, Johnsen PJ, Nielsen KM.

Genetics. 2009 Aug;182(4):1165-81. doi: 10.1534/genetics.109.103127. Epub 2009 May 27.

25.

Factors affecting the reversal of antimicrobial-drug resistance.

Johnsen PJ, Townsend JP, Bøhn T, Simonsen GS, Sundsfjord A, Nielsen KM.

Lancet Infect Dis. 2009 Jun;9(6):357-64. doi: 10.1016/S1473-3099(09)70105-7. Review.

PMID:
19467475
26.

Episodic selection and the maintenance of competence and natural transformation in Bacillus subtilis.

Johnsen PJ, Dubnau D, Levin BR.

Genetics. 2009 Apr;181(4):1521-33. doi: 10.1534/genetics.108.099523. Epub 2009 Feb 2.

27.

Complete sequence of Enterococcus faecium pVEF3 and the detection of an omega-epsilon-zeta toxin-antitoxin module and an ABC transporter.

Sletvold H, Johnsen PJ, Hamre I, Simonsen GS, Sundsfjord A, Nielsen KM.

Plasmid. 2008 Jul;60(1):75-85. doi: 10.1016/j.plasmid.2008.04.002. Epub 2008 Jun 3.

PMID:
18511120
28.

Release and persistence of extracellular DNA in the environment.

Nielsen KM, Johnsen PJ, Bensasson D, Daffonchio D.

Environ Biosafety Res. 2007 Jan-Jun;6(1-2):37-53. Epub 2007 Sep 12. Review.

29.
30.

Comparative DNA analysis of two vanA plasmids from Enterococcus faecium strains isolated from poultry and a poultry farmer in Norway.

Sletvold H, Johnsen PJ, Simonsen GS, Aasnaes B, Sundsfjord A, Nielsen KM.

Antimicrob Agents Chemother. 2007 Feb;51(2):736-9. Epub 2006 Nov 20.

31.

Prevalence, persistence, and molecular characterization of glycopeptide-resistant enterococci in Norwegian poultry and poultry farmers 3 to 8 years after the ban on avoparcin.

Sørum M, Johnsen PJ, Aasnes B, Rosvoll T, Kruse H, Sundsfjord A, Simonsen GS.

Appl Environ Microbiol. 2006 Jan;72(1):516-21.

33.

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