Institutt for farmasi
Engelsk personkortJohnsen, Pål Jarle
Førsteamanuensis
Farmasi
Funksjon
Førsteamanuensis mikrobiologi
Telefon
776 23156
Epost
Kontor/besøksadresse
Farmasi
FARM F4. 218
Arbeider i CRIStin
- Hurler, Julia; Berg, Ole Alexander; Skar, Merete L.; Conradi, Anne Hilde; Johnsen, Pål Jarle; Skalko-Basnet, Natasa. Improved burns therapy: Liposomes-in-hydrogel delivery system for mupirocin. Journal of Pharmaceutical Sciences 2012; Volum 101 (10). ISSN 0022-3549.s 3906 - 3915.s doi: 10.1002/jps.23260.
- Domingues, Sara; Harms, Klaus; Fricke, W. Florian; Johnsen, Pål Jarle; da Silva, Gabriela J.; Nielsen, Kåre M.. Natural Transformation Facilitates Transfer of Transposons, Integrons and Gene Cassettes between Bacterial Species. PLoS Pathogens 2012; Volum 8 (8). ISSN 1553-7366.s doi: 10.1371/journal.ppat.1002837.
- Starikova, Irina; Harms, Klaus; Haugen, Pål; Lunde, Tracy Munthali; Primicerio, Raul; Samuelsen, Ørjan; Nielsen, Kaare Magne; Johnsen, Pål Jarle. A Trade-off between the Fitness Cost of Functional Integrases and Long-trem stability of Integrons. PLoS Pathogens 2012; Volum 8 (11). ISSN 1553-7366.s doi: 10.1371/journal.ppat.1003043.
- Nielsen, Kåre M.; Ray, Jessica Louise; Johnsen, Pål Jarle. Horizontal gene trasfer: the uptake of extracellular DNA in bacteria. Elsevier 2012 ISBN 9780123838780.
- Johnsen, Pål jarle; Townsend, JP; Bøhn, Thomas; Simonsen, Gunnar Skov; Sundsfjord, arnfinn; Nielsen, Kaare Magne. Retrospective evidence for a biological cost of vancomycin resistance determinants in the absence of glycopeptide selective pressures. Journal of Antimicrobial Chemotherapy 2011; Volum 66 (3). ISSN 0305-7453.s 608 - 610.s doi: 10.1093/jac/dkq512.
- Rosvoll, Torill Cathrin Solvær; Pedersen, Torunn; Sletvold, Hege; Johnsen, Pål Jarle; Sollid, Johanna U Ericson; Simonsen, Gunnar Skov; Jensen, Lars B; Nielsen, Kaare Magne; Sundsfjord, Arnfinn. PCR-based plasmid typing in Enterococcus faecium strains reveals widely distributed pRE25-, pRUM-, pIP501-and pHT beta-related replicons associated with glycopeptide resistance and stabilizing toxin-antitoxin systems. FEMS Immunology and Medical Microbiology 2010; Volum 58 (2). ISSN 0928-8244.s 254 - 268.s doi: 10.1111/j.1574-695X.2009.00633.x.
- Sletvold, H; Johnsen, PJ; Wikmark, Odd-Gunnar; Simonsen, Gunnar Skov; Sundsfjord, A; Nielsen, KM. Tn1546 is part of a larger plasmid-encoded genetic unit horizontally disseminated among clonal Enterococcus faecium lineages. Journal of Antimicrobial Chemotherapy 2010; Volum 65 (9). ISSN 0305-7453.s 1894 - 1906.s doi: 10.1093/jac/dkq219.
- Ray, Jessica Louise; Harms, Klaus; Wikmark, Odd-Gunnar; Starikova, Irina; Johnsen, Pål jarle; Nielsen, Kaare Magne. Sexual Isolation in Acinetobacter baylyi Is Locus-Specific and Varies 10,000-Fold Over the Genome. Genetics 2009; Volum 182 (4). ISSN 0016-6731.s 1165 - 1181.s doi: 10.1534/genetics.109.103127.
- Johnsen, Pål jarle; Dubnau, Dave; Levin, Bruce R. Episodic Selection and the Maintenance of Competence and Natural Transformation in Bacillus subtilis. Genetics 2009; Volum 181 (4). ISSN 0016-6731.s 1521 - 1533.s doi: 10.1534/genetics.108.099523.
- Johnsen, Pål jarle; Townsend, Jeffrey P.; Bøhn, Thomas; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn; Sundsfjord, arnfinn; Nielsen, Kaare Magne. Factors affecting the reversal of antimicrobial-drug resistance. Lancet. Infectious diseases (Print) 2009; Volum 9 (6). ISSN 1473-3099.s 357 - 364.
- Nielsen, Kaare Magne; Ray, Jessica Louise; Johnsen, Pål jarle. Horizontal Gene Transfer: Uptake of Extracellular DNA by Bacteria. Elsevier 2009 ISBN 978-0-12-373944-5.s 587 - 596.
- Sletvold, H; Johnsen, PJ; Hamre, I; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn; Nielsen, KM. Complete sequence of Enterococcus faecium pVEF3 and the detection of an omega-epsilon-zeta toxin-antitoxin module and an ABC transporter. Plasmid 2008; Volum 60 (1). ISSN 0147-619X.s 75 - 85.s doi: 10.1016/j.plasmid.2008.04.002.
- Brusetti, Lorenzo; Glad, trine; Brodin, Sara; Myren, Petter; Rizzi, Aurora; Johnsen, Pål jarle; Carter, Phil; Daffonchio, Daniele; Nielsen, Kaare Magne. Low prevalence of blaTEM genes in Arctic environments and agricultural soil and rhizosphere. Microbial Ecology in Health and Disease 2008; Volum 20 (1). ISSN 0891-060X.s 27 - 36.s doi: 10.1080/08910600701838244.
- Sletvold, H; Johnsen, PJ; Simonsen, Gunnar Skov; Aasnæs, B; Sundsfjord, Arnfinn; Nielsen, KM. Comparative DNA analysis of two vanA plasmids from Enterococcus faecium strains isolated from poultry and a poultry farmer in Norway. Antimicrobial Agents and Chemotherapy 2007; Volum 51 (2). ISSN 0066-4804.s 736 - 739.s doi: 10.1128/AAC.00557-06.
- Nielsen, Kaare Magne; Johnsen, Pål jarle; Van Elsas, Jan Dirk. Horizontal gene transfer and microevolution in Soil.. CRC Press 2007 ISBN 978-0-8247-2749-9.s 55 - 81.
- Dahl, Kristin Hegstad; Mater, DDG; Flores, MJ; Johnsen, Pål jarle; Midtvedt, T; Corthier, G; Sundsfjord, arnfinn. 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. Journal of Antimicrobial Chemotherapy 2007; Volum 59. ISSN 0305-7453.s doi: 10.1093/jac/dkl530.
- Nielsen, Kaare Magne; Johnsen, Pål jarle; Bensasson, Douda; Daffonchio, Daniele. Release and persistence of extracellular DNA in the environment. Environmental Biosafety Research 2007; Volum 6. ISSN 1635-7922.s 37 - 53.
- Sørum, Marit; Johnsen, PJ; Aasnes, Bettina; Rosvoll, T; Kruse, H; Sundsfjord, Arnfinn; Simonsen, Gunnar Skov. Prevalence, persistence, and molecular characterization of glycopeptide-resistant enterococci in Norwegian poultry and poultry farmers 3 to 8 years after the ban on avoparcin. Applied and Environmental Microbiology 2006; Volum 72. ISSN 0099-2240.
- Johnsen, Pål Jarle; Østerhus, Jan Ivar; Sletvold, Hege; Sørum, Marit; Kruse, Hilde; Nielsen, Kaare Magne; Simonsen, Gunnar Skov; Sundsfjord, Arnfinn. Persistence of animal and human glycopeptide-resistant enterococci on two Norwegian poultry farms formerly exposed to avoparcin is associated with a widespread plasmid-mediated vanA element within a polyclonal Enterococcus faecium population. Applied and Environmental Microbiology 2005; Volum 71 (1). ISSN 0099-2240.s 159 - 168.
- Johnsen, Pål Jarle. Is it more to bacterial sex than exploring the fitness landscape of other organisms?. 2012 ISBN 3923022360.s 1 - 13.
- Johnsen, Pål jarle; Levin, Bruce R. Adjusting to alien genes. Molecular Microbiology 2010; Volum 75 (5). ISSN 0950-382X.s 1061 - 1063.s doi: 10.1111/j.1365-2958.2010.07075.x.
- Johnsen, Pål jarle. The cost of antibiotic resistance; a bacterial perspective. Invited speaker at Eastman dental Institute Research Seminar series, University College of London.. Seminar 2009-03-04 - 2009.
- Sletvold, hege; Johnsen, Pål jarle; Simonsen, Gunnar Skov; Sundsfjord, arnfinn; Nielsen, Kaare Magne. Complete DNA sequence of the Enterococcus faecium vanA plasmid pIP816, and comparative analyses to vanA plasmids isolated from poultry farmer E. faecium strains. Plasmid 2007; Volum 57 (2). ISSN 0147-619X.s 239 - 239.
- Sletvold, hege; Johnsen, Pål jarle; Simonsen, Gunnar Skov; AasnÆs, bettina; Sundsfjord, Arnfinn; Nielsen, Kaare Magne. Complete nucleotide sequence of the VanA glycopeptide resistance-mediating plasmid p399/F99/A9 from Enterococcus faecium.. ASM-FEMS Conference on Enterococci 2005-08-28 - 2005-08-31 2005.
