The AmpC phenotype in Norwegian clinical isolates of Escherichia coli is associated with an acquired ISEcp1-like ampC element or hyperproduction of the endogenous AmpC

Autor: Eirik W. Lundblad, Kristin H. Dahl, Anne-Merethe Hanssen, Timothy R. Walsh, Bettina Aasnæs, Bjørg Haldorsen, Arnfinn Sundsfjord, Gunnar Skov Simonsen

Publikováno v: Journal of Antimicrobial Chemotherapy. 62:694-702

Objectives The aim of the study was to examine resistance mechanisms associated with an AmpC phenotype in Norwegian clinical isolates of Escherichia coli. Methods Clinical E. coli isolates (n = 106) with reduced susceptibility to third-generation cep

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90fd8bc2b509ed680600996ba7086009
https://doi.org/10.1093/jac/dkn257

Genetic methods for detection of antimicrobial resistance

Autor: Pia Littauer, Bjørg Haldorsen, Kristin H. Dahl, Stig‐Ove Hjelmevoll, Gunnar Skov Simonsen, Arnfinn Sundsfjord, Håkon Haaheim

Publikováno v: APMIS. 112:815-837

Accurate and rapid diagnostic methods are needed to guide antimicrobial therapy and infection control interventions. Advances in real-time PCR have provided a user-friendly, rapid and reproducible testing platform catalysing an increased use of genet

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::007fa228f18a8e682a8028e9be264617
https://doi.org/10.1111/j.1600-0463.2004.apm11211-1208.x

Nonconjugative Transposition of the vanB -Containing Tn 5382 -Like Element in Enterococcus faecium

Autor: Eirik W. Lundblad, Arnfinn Sundsfjord, Torunn P. Røkenes, Kristin H. Dahl

Publikováno v: Antimicrobial Agents and Chemotherapy. 47:786-789

The vanB 2 operon encoding glycopeptide resistance is an integral part of the putative conjugative transposon Tn 5382 . Characterization of clinical glycopeptide resistant derivatives from an epidemic ampicillin-resistant Enterococcus faecium strain

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::666c888b0335e6c279f2596baf4937c7
https://doi.org/10.1128/aac.47.2.786-789.2003

Transfer of plasmid and chromosomal glycopeptide resistance determinants occurs more readily in the digestive tract of mice than in vitro and exconjugants can persist stably in vivo in the absence of glycopeptide selection

Autor: Gérard Corthier, Pål Jarle Johnsen, Tore Midtvedt, Maria-Jose Flores, Denis D.G. Mater, Arnfinn Sundsfjord, Kristin H. Dahl

Publikováno v: Journal of Antimicrobial Chemotherapy
Journal of Antimicrobial Chemotherapy, Oxford University Press (OUP), 2007, 59 (3), pp.478-486. ⟨10.1093/jac/dkl530⟩

The transferability of vanA and vanB glycopeptide resistance determinants with a defined plasmid (n = 9) or chromosomal (n = 4) location between Enterococcus faecium strains of human and animal origins was compared using filter mating (in vitro) and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11589d120533b1434dd4a0cd0f45f636
https://hal.inrae.fr/hal-02922708

Typeability of Tn1546-like elements in vancomycin-resistant enterococci using long-range PCRs and specific analysis of polymorphic regions

Autor: Marit R.M. Myhre, Kristin H. Dahl, Arnfinn Sundsfjord, Ørjan Olsvik, Gunnar Skov Simonsen

Publikováno v: Microbial drug resistance (Larchmont, N.Y.). 6(1)

Molecular subtyping of the VanA-type resistance element Tn1546 in an international collection of 81 genomically diverse vancomycin-resistant enterococci (VRE) from human, animal, and environmental reservoirs was evaluated by restriction analysis of l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b1ca836186e88dffc8dd0583ffa25eb
https://pubmed.ncbi.nlm.nih.gov/10868807