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Items: 1 to 50 of 117

1.

Pharmacokinetic Data Show That Oxolinic Acid and Flumequine Are Absorbed and Excreted Rapidly From Plasma and Tissues of Lumpfish.

Haugland GT, Kverme KO, Hannisdal R, Kallekleiv M, Colquhoun DJ, Lunestad BT, Wergeland HI, Samuelsen OB.

Front Vet Sci. 2019 Nov 12;6:394. doi: 10.3389/fvets.2019.00394. eCollection 2019.

2.

Efficacy of mecillinam against clinical multidrug-resistant Escherichia coli in a murine urinary tract infection model.

Zykov IN, Frimodt-Møller N, Småbrekke L, Sundsfjord A, Samuelsen Ø.

Int J Antimicrob Agents. 2020 Feb;55(2):105851. doi: 10.1016/j.ijantimicag.2019.11.008. Epub 2019 Nov 23.

3.

Synthesis and biological evaluation of zinc chelating compounds as metallo-β-lactamase inhibitors.

Kildahl-Andersen G, Schnaars C, Prandina A, Radix S, Le Borgne M, Jordheim LP, Gjøen T, Andresen AMS, Lauksund S, Fröhlich C, Samuelsen Ø, Rongved P, Åstrand OAH.

Medchemcomm. 2019 Mar 8;10(4):528-537. doi: 10.1039/c8md00578h. eCollection 2019 Apr 1.

PMID:
31057732
4.

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.

5.

The fight to keep resistance at bay, epidemiology of carbapenemase producing organisms (CPOs), vancomycin resistant enterococci (VRE) and methicillin resistant Staphylococcus aureus (MRSA) in Norway, 2006 - 2017.

Elstrøm P, Astrup E, Hegstad K, Samuelsen Ø, Enger H, Kacelnik O.

PLoS One. 2019 Feb 4;14(2):e0211741. doi: 10.1371/journal.pone.0211741. eCollection 2019.

6.

Complete Genome Sequence of Pseudomonas aeruginosa K34-7, a Carbapenem-Resistant Isolate of the High-Risk Sequence Type 233.

Taiaroa G, Samuelsen Ø, Kristensen T, Økstad OAL, Heikal A.

Microbiol Resour Announc. 2018 Aug 2;7(4). pii: e00886-18. doi: 10.1128/MRA.00886-18. eCollection 2018 Aug.

7.

Whole-animal accumulation, oxidative stress, transcriptomic and metabolomic responses in the pink shrimp (Pandalus montagui) exposed to teflubenzuron.

Olsvik PA, Aulin M, Samuelsen OB, Hannisdal R, Agnalt AL, Lunestad BT.

J Appl Toxicol. 2019 Mar;39(3):485-497. doi: 10.1002/jat.3739. Epub 2018 Oct 21.

PMID:
30345541
8.

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.

9.

Performance of the EUCAST disc diffusion method and two MIC methods in detection of Enterobacteriaceae with reduced susceptibility to meropenem: the NordicAST CPE study.

Haldorsen B, Giske CG, Hansen DS, Orri Helgason K, Kahlmeter G, Löhr IH, Matuschek E, Österblad M, Rantakokko-Jalava K, Wang M, Småbrekke L, Samuelsen Ø, Sundsfjord A.

J Antimicrob Chemother. 2018 Oct 1;73(10):2905. doi: 10.1093/jac/dky339. No abstract available.

10.

Performance of the EUCAST disc diffusion method and two MIC methods in detection of Enterobacteriaceae with reduced susceptibility to meropenem: the NordicAST CPE study.

Haldorsen B, Giske CG, Hansen DS, Helgason KO, Kahlmeter G, Löhr IH, Matuschek E, Österblad M, Rantakokko-Jalava K, Wang M, Småbrekke L, Samuelsen Ø, Sundsfjord A; NordicAST CPE Study Group.

J Antimicrob Chemother. 2018 Oct 1;73(10):2738-2747. doi: 10.1093/jac/dky276. Erratum in: J Antimicrob Chemother. 2018 Oct 1;73(10):2905.

11.

Synthesis and Preclinical Evaluation of TPA-Based Zinc Chelators as Metallo-β-lactamase Inhibitors.

Schnaars C, Kildahl-Andersen G, Prandina A, Popal R, Radix S, Le Borgne M, Gjøen T, Andresen AMS, Heikal A, Økstad OA, Fröhlich C, Samuelsen Ø, Lauksund S, Jordheim LP, Rongved P, Åstrand OAH.

ACS Infect Dis. 2018 Sep 14;4(9):1407-1422. doi: 10.1021/acsinfecdis.8b00137. Epub 2018 Aug 2.

PMID:
30022668
12.

Escherichia coli Sequence Type 410 Is Causing New International High-Risk Clones.

Roer L, Overballe-Petersen S, Hansen F, Schønning K, Wang M, Røder BL, Hansen DS, Justesen US, Andersen LP, Fulgsang-Damgaard D, Hopkins KL, Woodford N, Falgenhauer L, Chakraborty T, Samuelsen Ø, Sjöström K, Johannesen TB, Ng K, Nielsen J, Ethelberg S, Stegger M, Hammerum AM, Hasman H.

mSphere. 2018 Jul 18;3(4). pii: e00337-18. doi: 10.1128/mSphere.00337-18.

13.

Exposure to teflubenzuron negatively impacts exploratory behavior, learning and activity of juvenile European lobster (Homarus gammarus).

Cresci A, Samuelsen OB, Durif CMF, Bjelland RM, Skiftesvik AB, Browman HI, Agnalt AL.

Ecotoxicol Environ Saf. 2018 Sep 30;160:216-221. doi: 10.1016/j.ecoenv.2018.05.021. Epub 2018 May 26.

PMID:
29807294
14.

Pharmacokinetics and Pharmacodynamics of Fosfomycin and Its Activity against Extended-Spectrum-β-Lactamase-, Plasmid-Mediated AmpC-, and Carbapenemase-Producing Escherichia coli in a Murine Urinary Tract Infection Model.

Zykov IN, Samuelsen Ø, Jakobsen L, Småbrekke L, Andersson DI, Sundsfjord A, Frimodt-Møller N.

Antimicrob Agents Chemother. 2018 May 25;62(6). pii: e02560-17. doi: 10.1128/AAC.02560-17. Print 2018 Jun.

15.

Spread of Plasmid-Encoded NDM-1 and GES-5 Carbapenemases among Extensively Drug-Resistant and Pandrug-Resistant Clinical Enterobacteriaceae in Durban, South Africa.

Pedersen T, Sekyere JO, Govinden U, Moodley K, Sivertsen A, Samuelsen Ø, Essack SY, Sundsfjord A.

Antimicrob Agents Chemother. 2018 Apr 26;62(5). pii: e02178-17. doi: 10.1128/AAC.02178-17. Print 2018 May.

16.

Correction: Impact of extensive antibiotic treatment on faecal carriage of antibiotic-resistant enterobacteria in children in a low resistance prevalence setting.

Knudsen PK, Brandtzaeg P, Høiby EA, Bohlin J, Samuelsen Ø, Steinbakk M, Abrahamsen TG, Müller F, Gammelsrud KW.

PLoS One. 2018 Feb 21;13(2):e0193439. doi: 10.1371/journal.pone.0193439. eCollection 2018.

17.

Detection of carbapenemases with a newly developed commercial assay using Matrix Assisted Laser Desorption Ionization-Time of Flight.

Rapp E, Samuelsen Ø, Sundqvist M.

J Microbiol Methods. 2018 Mar;146:37-39. doi: 10.1016/j.mimet.2018.01.008. Epub 2018 Feb 3.

18.

Molecular and epidemiological characterization of carbapenemase-producing Enterobacteriaceae in Norway, 2007 to 2014.

Samuelsen Ø, Overballe-Petersen S, Bjørnholt JV, Brisse S, Doumith M, Woodford N, Hopkins KL, Aasnæs B, Haldorsen B, Sundsfjord A; Norwegian Study Group on CPE.

PLoS One. 2017 Nov 15;12(11):e0187832. doi: 10.1371/journal.pone.0187832. eCollection 2017.

19.

Impact of extensive antibiotic treatment on faecal carriage of antibiotic-resistant enterobacteria in children in a low resistance prevalence setting.

Knudsen PK, Brandtzaeg P, Høiby EA, Bohlin J, Samuelsen Ø, Steinbakk M, Abrahamsen TG, Müller F, Gammelsrud KW.

PLoS One. 2017 Nov 7;12(11):e0187618. doi: 10.1371/journal.pone.0187618. eCollection 2017. Erratum in: PLoS One. 2018 Feb 21;13(2):e0193439.

20.

Dissemination and Characteristics of a Novel Plasmid-Encoded Carbapenem-Hydrolyzing Class D β-Lactamase, OXA-436, Found in Isolates from Four Patients at Six Different Hospitals in Denmark.

Samuelsen Ø, Hansen F, Aasnæs B, Hasman H, Lund BA, Leiros HS, Lilje B, Janice J, Jakobsen L, Littauer P, Søes LM, Holzknecht BJ, Andersen LP, Stegger M, Andersen PS, Hammerum AM.

Antimicrob Agents Chemother. 2017 Dec 21;62(1). pii: e01260-17. doi: 10.1128/AAC.01260-17. Print 2018 Jan.

21.

Use of a Commercially Available Microarray to Characterize Antibiotic-Resistant Clinical Isolates of Klebsiella pneumoniae.

Charnock C, Samuelsen Ø, Nordlie AL, Hjeltnes B.

Curr Microbiol. 2018 Feb;75(2):163-172. doi: 10.1007/s00284-017-1361-4. Epub 2017 Sep 22.

PMID:
28940091
22.

Impact of teflubenzuron on the rockpool shrimp (Palaemon elegans).

Olsvik PA, Lunestad BT, Agnalt AL, Samuelsen OB.

Comp Biochem Physiol C Toxicol Pharmacol. 2017 Oct;201:35-43. doi: 10.1016/j.cbpc.2017.09.005. Epub 2017 Sep 20.

PMID:
28939506
23.

Complete Genome Sequence of a Multidrug-Resistant, blaNDM-1-Expressing Klebsiella pneumoniae K66-45 Clinical Isolate from Norway.

Heikal A, Samuelsen Ø, Kristensen T, Økstad OA.

Genome Announc. 2017 Jul 6;5(27). pii: e00601-17. doi: 10.1128/genomeA.00601-17.

24.

Development of anaesthetic protocols for lumpfish (Cyclopterus lumpus L.): Effect of anaesthetic concentrations, sea water temperature and body weight.

Skår MW, Haugland GT, Powell MD, Wergeland HI, Samuelsen OB.

PLoS One. 2017 Jul 5;12(7):e0179344. doi: 10.1371/journal.pone.0179344. eCollection 2017.

25.

Structural Insights into TMB-1 and the Role of Residues 119 and 228 in Substrate and Inhibitor Binding.

Skagseth S, Christopeit T, Akhter S, Bayer A, Samuelsen Ø, Leiros HS.

Antimicrob Agents Chemother. 2017 Jul 25;61(8). pii: e02602-16. doi: 10.1128/AAC.02602-16. Print 2017 Aug.

26.

Metallo-β-lactamase inhibitors by bioisosteric replacement: Preparation, activity and binding.

Skagseth S, Akhter S, Paulsen MH, Muhammad Z, Lauksund S, Samuelsen Ø, Leiros HS, Bayer A.

Eur J Med Chem. 2017 Jul 28;135:159-173. doi: 10.1016/j.ejmech.2017.04.035. Epub 2017 Apr 14.

PMID:
28445786
27.

Norwegian patients and retail chicken meat share cephalosporin-resistant Escherichia coli and IncK/blaCMY-2 resistance plasmids.

Berg ES, Wester AL, Ahrenfeldt J, Mo SS, Slettemeås JS, Steinbakk M, Samuelsen Ø, Grude N, Simonsen GS, Løhr IH, Jørgensen SB, Tofteland S, Lund O, Dahle UR, Sunde M.

Clin Microbiol Infect. 2017 Jun;23(6):407.e9-407.e15. doi: 10.1016/j.cmi.2016.12.035. Epub 2017 Jan 7.

28.

The role of whole genome sequencing in antimicrobial susceptibility testing of bacteria: report from the EUCAST Subcommittee.

Ellington MJ, Ekelund O, Aarestrup FM, Canton R, Doumith M, Giske C, Grundman H, Hasman H, Holden MTG, Hopkins KL, Iredell J, Kahlmeter G, Köser CU, MacGowan A, Mevius D, Mulvey M, Naas T, Peto T, Rolain JM, Samuelsen Ø, Woodford N.

Clin Microbiol Infect. 2017 Jan;23(1):2-22. doi: 10.1016/j.cmi.2016.11.012. Epub 2016 Nov 23. Review.

29.

Identification of a novel IMI carbapenemase variant (IMI-9) in Enterobacter cloacae complex.

Di Luca MC, Skaare D, Aasnaes B, Sundsfjord A, Samuelsen Ø.

Int J Antimicrob Agents. 2016 Dec;48(6):764-765. doi: 10.1016/j.ijantimicag.2016.09.004. Epub 2016 Sep 29. No abstract available.

PMID:
27742202
30.

H. Onarheim og medarbeidere svarer.

Onarheim H, Brekke RL, Leiva RA, Oma DH, Kolstad H, Samuelsen Ø, Sundsfjord A, Mylvaganam H.

Tidsskr Nor Laegeforen. 2016 Sep 27;136(17):1424-5. doi: 10.4045/tidsskr.16.0755. eCollection 2016 Sep. Norwegian. No abstract available.

31.

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
32.

A patient with sepsis following a burn injury in Pakistan.

Onarheim H, Brekke RL, Leiva RA, Oma DH, Kolstad H, Samuelsen Ø, Sundsfjord A, Mylvaganam H.

Tidsskr Nor Laegeforen. 2016 Aug 23;136(14-15):1228-32. doi: 10.4045/tidsskr.15.1208. eCollection 2016 Aug. English, Norwegian. No abstract available.

33.

First detection of a carbapenemase-producing Enterobacteriaceae in Iceland.

Helgason KO, Jelle AE, Gudlaugsson O, Edvardsson V, Findlay J, Hopkins KL, Woodford N, Samuelsen Ø, Hardarson HS.

J Glob Antimicrob Resist. 2016 Sep;6:73-74. doi: 10.1016/j.jgar.2016.04.002. Epub 2016 May 2. No abstract available.

PMID:
27530843
34.

Persistence and Stability of Teflubenzuron and Diflubenzuron When Associated to Organic Particles in Marine Sediment.

Samuelsen OB.

Bull Environ Contam Toxicol. 2016 Feb;96(2):224-8. doi: 10.1007/s00128-015-1707-1. Epub 2015 Dec 10.

PMID:
26662043
35.

Role of Residues W228 and Y233 in the Structure and Activity of Metallo-β-Lactamase GIM-1.

Skagseth S, Carlsen TJ, Bjerga GE, Spencer J, Samuelsen Ø, Leiros HK.

Antimicrob Agents Chemother. 2015 Dec 7;60(2):990-1002. doi: 10.1128/AAC.02017-15. Print 2016 Feb.

36.

The antimicrobial activity of mecillinam, nitrofurantoin, temocillin and fosfomycin and comparative analysis of resistance patterns in a nationwide collection of ESBL-producing Escherichia coli in Norway 2010-2011.

Zykov IN, Sundsfjord A, Småbrekke L, Samuelsen Ø.

Infect Dis (Lond). 2016 Feb;48(2):99-107. doi: 10.3109/23744235.2015.1087648. Epub 2015 Sep 28.

PMID:
26414659
37.

Transcriptional responses to teflubenzuron exposure in European lobster (Homarus gammarus).

Olsvik PA, Samuelsen OB, Agnalt AL, Lunestad BT.

Aquat Toxicol. 2015 Oct;167:143-56. doi: 10.1016/j.aquatox.2015.07.008. Epub 2015 Jul 18.

PMID:
26318677
38.

CRISPR-cas subtype I-Fb in Acinetobacter baumannii: evolution and utilization for strain subtyping.

Karah N, Samuelsen Ø, Zarrilli R, Sahl JW, Wai SN, Uhlin BE.

PLoS One. 2015 Feb 23;10(2):e0118205. doi: 10.1371/journal.pone.0118205. eCollection 2015.

39.

Structural and biochemical characterization of VIM-26 shows that Leu224 has implications for the substrate specificity of VIM metallo-β-lactamases.

Leiros HK, Edvardsen KS, Bjerga GE, Samuelsen Ø.

FEBS J. 2015 Mar;282(6):1031-42. doi: 10.1111/febs.13200. Epub 2015 Feb 6.

40.

Distribution and persistence of the anti sea-lice drug teflubenzuron in wild fauna and sediments around a salmon farm, following a standard treatment.

Samuelsen OB, Lunestad BT, Hannisdal R, Bannister R, Olsen S, Tjensvoll T, Farestveit E, Ervik A.

Sci Total Environ. 2015 Mar 1;508:115-21. doi: 10.1016/j.scitotenv.2014.11.082. Epub 2014 Dec 1.

PMID:
25474168
41.

Identification of VIM-2-producing Pseudomonas aeruginosa from Tanzania is associated with sequence types 244 and 640 and the location of blaVIM-2 in a TniC integron.

Moyo S, Haldorsen B, Aboud S, Blomberg B, Maselle SY, Sundsfjord A, Langeland N, Samuelsen Ø.

Antimicrob Agents Chemother. 2015 Jan;59(1):682-5. doi: 10.1128/AAC.01436-13. Epub 2014 Oct 20.

42.

His224 alters the R2 drug binding site and Phe218 influences the catalytic efficiency of the metallo-β-lactamase VIM-7.

Leiros HK, Skagseth S, Edvardsen KS, Lorentzen MS, Bjerga GE, Leiros I, Samuelsen Ø.

Antimicrob Agents Chemother. 2014 Aug;58(8):4826-36. doi: 10.1128/AAC.02735-13. Epub 2014 Jun 9.

43.

Evaluation of the total MBL confirm kit (ROSCO) for detection of metallo-β-lactamases in Pseudomonas aeruginosa and Acinetobacter baumannii.

Hansen F, Hammerum AM, Skov R, Haldorsen B, Sundsfjord A, Samuelsen O.

Diagn Microbiol Infect Dis. 2014 Aug;79(4):486-8. doi: 10.1016/j.diagmicrobio.2013.12.001. Epub 2013 Dec 10.

PMID:
24857168
44.

High prevalence of faecal carriage of ESBL-producing Enterobacteriaceae in Norwegian patients with gastroenteritis.

Jørgensen SB, Samuelsen O, Sundsfjord A, Bhatti SA, Jørgensen I, Sivapathasundaram T, Leegaard TM.

Scand J Infect Dis. 2014 Jun;46(6):462-5. doi: 10.3109/00365548.2014.896031. Epub 2014 Apr 4.

PMID:
24702690
45.

Mortality and deformities in European lobster (Homarus gammarus) juveniles exposed to the anti-parasitic drug teflubenzuron.

Samuelsen OB, Lunestad BT, Farestveit E, Grefsrud ES, Hannisdal R, Holmelid B, Tjensvoll T, Agnalt AL.

Aquat Toxicol. 2014 Apr;149:8-15. doi: 10.1016/j.aquatox.2014.01.019. Epub 2014 Feb 4.

46.

Antibiotic uptake by cultured Atlantic cod leucocytes and effect on intracellular Francisella noatunensis subsp. noatunensis replication.

Kaldestad M, Haugland GT, Rønneseth A, Wergeland HI, Samuelsen OB.

Dis Aquat Organ. 2014 Feb 4;108(1):11-21. doi: 10.3354/dao02696.

47.

Increased prevalence of aminoglycoside resistance in clinical isolates of Escherichia coli and Klebsiella spp. in Norway is associated with the acquisition of AAC(3)-II and AAC(6')-Ib.

Haldorsen BC, Simonsen GS, Sundsfjord A, Samuelsen O; Norwegian Study Group on Aminoglycoside Resistance.

Diagn Microbiol Infect Dis. 2014 Jan;78(1):66-9. doi: 10.1016/j.diagmicrobio.2013.10.001. Epub 2013 Oct 14.

PMID:
24231381
48.

Evaluation of a new real-time PCR assay (Check-Direct CPE) for rapid detection of KPC, OXA-48, VIM, and NDM carbapenemases using spiked rectal swabs.

Nijhuis R, Samuelsen O, Savelkoul P, van Zwet A.

Diagn Microbiol Infect Dis. 2013 Dec;77(4):316-20. doi: 10.1016/j.diagmicrobio.2013.09.007. Epub 2013 Oct 14.

PMID:
24135412
49.

Toxicological assessment of the anti-salmon lice drug diflubenzuron on Atlantic cod Gadus morhua.

Olsvik PA, Samuelsen OB, Erdal A, Holmelid B, Lunestad BT.

Dis Aquat Organ. 2013 Jul 9;105(1):27-43. doi: 10.3354/dao02613.

50.

Large IncHI2-plasmids encode extended-spectrum β-lactamases (ESBLs) in Enterobacter spp. bloodstream isolates, and support ESBL-transfer to Escherichia coli.

Nilsen E, Haldorsen BC, Sundsfjord A, Simonsen GS, Ingebretsen A, Naseer U, Samuelsen O; Norwegian Study Group on Invasive Enterobacter.

Clin Microbiol Infect. 2013 Nov;19(11):E516-8. doi: 10.1111/1469-0691.12274. Epub 2013 Jun 25.

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