Now showing items 620-639 of 1054

    • A mitogenomic approach to the taxonomy of pollocks. Theragra chalcogramma and T. finnmarchica represent one single species 

      Ursvik, Anita; Breines, Ragna; Christiansen, Jørgen Schou; Fevolden, Jan-Erik; Coucheron, Dag H.; Johansen, Steinar D. (Journal article; Tidsskriftartikkel; Peer reviewed, 2007-06-07)
      Background: The walleye pollock (Theragra chalcogramma) and Norwegian pollock (T. finnmarchica) are confined to the North Pacific and North Atlantic Oceans, respectively, and considered as distinct species within the family Gadidae. We have determined the complete mtDNA nucleotide sequence of two specimens of Norwegian pollock and compared the sequences to that of 10 specimens of walleye pollock ...
    • MMP9 modulates the metastatic cascade and immune landscape for breast cancer anti-metastatic therapy 

      Owyong, Mark; Chou, Jonathan; van den Bijgaart, Renske; Kong, Niwen; Efe, Gizem; Maynard, Carrie; Talmi-Frank, Dalit; Solomonov, Inna; Koopman, Charlotte; Hadler-Olsen, Elin Synnøve; Headley, Mark; Lin, Charlene; Wang, Chih-Yang; Sagi, Irit; Werb, Zena; Plaks, Vicki (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-11-14)
      Metastasis, the main cause of cancer-related death, has traditionally been viewed as a late-occurring process during cancer progression. Using the MMTV-PyMT luminal B breast cancer model, we demonstrate that the lung metastatic niche is established early during tumorigenesis. We found that matrix metalloproteinase 9 (MMP9) is an important component of the metastatic niche early in tumorigenesis and ...
    • Modelling fatty liver disease with mouse liver-derived multicellular spheroids 

      van Os, Elise Anne; Cools, Laura; Eysackers, Nathalie; Szafranska, Karolina; Smout, Ayla; Verhulst, Stefaan; Reynaert, Hendrik; McCourt, Peter Anthony; Mannaerts, Inge; van Grunsven, Leo A. (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-28)
      Chronic liver disease can lead to liver fibrosis and ultimately cirrhosis, which is a significant health burden and a major cause of death worldwide. Reliable in vitro models are lacking and thus mono-cultures of cell lines are still used to study liver disease and evaluate candidate anti-fibrotic drugs. We established functional multicellular liver spheroid (MCLS) cultures using primary mouse ...
    • Moderate but not severe hypothermia causes pro-arrhythmic changes in cardiac electrophysiology 

      Dietrichs, Erik Sveberg; McGlynn, Karen; Allan, Andrew; Connolly, Adam; Bishop, Martin; Burton, Francis; Kettlewell, Sarah; Myles, Rachel; Tveita, Torkjel; Smith, Godfrey L (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-02-07)
      <i>Aims</i> - Treatment of arrhythmias evoked by hypothermia/rewarming remains challenging, and the underlying mechanisms are unclear. This <i>in vitro</i> experimental study assessed cardiac electrophysiology in isolated rabbit hearts at temperatures occurring in therapeutic and accidental hypothermia.<p><p> <i>Methods and results</i> - Detailed ECG, surface electrogram, and panoramic optical ...
    • Modification of sialylation is associated with multidrug resistance in human acute myeloid leukemia 

      Ma, H; Zhou, H; Song, X; Shi, S; Zhang, J; Jia, L (Journal article; Tidsskriftartikkel; Peer reviewed, 2015)
    • Modulation of high affinity ATP-dependent cyclic nucleotide transporters by specific and non-specific cyclic nucleotide phosphodiesterase inhibitors 

      Aronsen, Lena; Ørvoll, Elin Peggy Hanne Øien; Lyså, Roy Andre; Ravna, Aina Westrheim; Sager, Georg (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-11-07)
      Intracellular cyclic nucleotides are eliminated by phosphodiesterases (PDEs) and by ATP Binding cassette transporters such as ABCC4 and ABCC5. PDE5 and ABCC5 have similar affinity for cGMP whereas ABCC5 has much higher affinity for cGMP compared with cAMP. Since the substrate (cGMP) is identical for these two eliminatory processes it is conceivable that various PDE inhibitors also modulate ...
    • Modulation of Plasma Membrane Composition and Microdomain Organization Impairs Heat Shock Protein Expression in B16-F10 Mouse Melanoma Cells 

      Crul, Tim; Csoboz, Balint; Gombos, Imre; Marton, Annamaria; Peter, Maria; Balogh, Gabor; Vizler, Csaba; Szente, Lajos; Vigh, Laszlo (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-04-12)
      The heat shock response (HSR) regulates induction of stress/heat shock proteins (HSPs) to preserve proteostasis during cellular stress. Earlier, our group established that the plasma membrane (PM) acts as a sensor and regulator of HSR through changes in its microdomain organization. PM microdomains such as lipid rafts, dynamic nanoscale assemblies enriched in cholesterol and sphingomyelin, and ...
    • Molecular and epidemiological characterization of carbapenemase-producing Enterobacteriaceae in Norway, 2007 to 2014 

      Samuelsen, Ørjan; Overballe-Petersen, Søren; Bjørnholt, Jørgen; Brisse, Sylvain; Doumith, Michel; Woodford, Neil; Hopkins, Katie L.; Aasnæs, Bettina; Haldorsen, Bjørg; Sundsfjord, Arnfinn (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-15)
      The prevalence of carbapenemase-producing Enterobacteriaceae (CPE) is increasing worldwide. Here we present associated patient data and molecular, epidemiological and phenotypic characteristics of all CPE isolates in Norway from 2007 to 2014 confirmed at the Norwegian National Advisory Unit on Detection of Antimicrobial Resistance. All confirmed CPE isolates were characterized pheno- and genotypically, ...
    • Molecular characterization and phylogenetics of Fennoscandian cowpox virus isolates based on the p4c and atip genes 

      Okeke, Malachy Ifeanyi; Okoli, Arinze Stanley; Nilssen, Øivind; Moens, Ugo; Tryland, Morten; Bøhn, Thomas; Traavik, Terje (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
      Background: Cowpox virus (CPXV), a rodent-borne Orthopoxvirus (OPV) that is indigenous to Eurasia can infect humans, cattle, felidae and other animals. Molecular characterization of CPXVs isolated from different geographic locations is important for the understanding of their biology, geographic distribution, classification and evolution. Our aim was to characterize CPXVs isolated from Fennoscandia ...
    • Molecular determinants regulating selective binding of autophagy adapters and receptors to ATG8 proteins 

      Wirth, Martina; Zhang, Wenxin; Razi, Minoo; Nyoni, Lynet; Joshi, Dhira; O'Reilly, Nicola; Johansen, Terje; Tooze, Sharon; Mouilleron, Stephane (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-03)
      Autophagy is an essential recycling and quality control pathway. Mammalian ATG8 proteins drive autophagosome formation and selective removal of protein aggregates and organelles by recruiting autophagy receptors and adaptors that contain a LC3-interacting region (LIR) motif. LIR motifs can be highly selective for ATG8 subfamily proteins (LC3s/GABARAPs), however the molecular determinants regulating ...
    • Molecular Epidemiological Characterisation of ESBL- and Plasmid-Mediated AmpC-Producing Escherichia coli and Klebsiella pneumoniae at Kamuzu Central Hospital, Lilongwe, Malawi 

      Choonara, Faheema Ebrahim; Haldorsen, Bjørg; Janice, Jessin; Mbanga, Joshua; Ndhlovu, Isaac; Saulosi, Osborne; Maida, Tarsizio; Lampiao, Fanuel; Simonsen, Gunnar Skov; Essack, Sabiha Yusuf; Sundsfjord, Arnfinn (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-14)
      The global rise in infections caused by multidrug resistant (MDR) Enterobacterales poses a public health problem. We have performed a molecular epidemiological characterisation of representative plasmid-mediated AmpC (pAmpC) and ESBL-positive clinical isolates of Escherichia coli (n = 38) and Klebsiella pneumoniae (n = 17) from a tertiary hospital in Malawi collected in 2017. BlaCTX-M-15 was the ...
    • Molecular Interactions Stabilizing the Promatrix Metalloprotease-9·Serglycin Heteromer 

      Dawadi, Rangita; Malla, Nabin; Hegge, Beate; Wushur, Imin; Berg, Eli; Svineng, Gunbjørg; Sylte, Ingebrigt; Winberg, Jan-Olof (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-12)
      Previous studies have shown that THP-1 cells produced an SDS-stable and reduction-sensitive complex between proMMP-9 and a chondroitin sulfate proteoglycan (CSPG) core protein. The complex could be reconstituted in vitro using purified serglycin (SG) and proMMP-9 and contained no inter-disulfide bridges. It was suggested that the complex involved both the FnII module and HPX domain of proMMP-9. The ...
    • Molecular model of the outward facing state of the human P-glycoprotein (ABCB1), and comparison to a model of the human MRP5 (ABCC5) 

      Ravna, Aina W.; Sylte, Ingebrigt; Sager, Georg (Journal article; Tidsskriftartikkel; Peer reviewed, 2007-09-06)
      Background: Multidrug resistance is a particular limitation to cancer chemotherapy, antibiotic treatment and HIV medication. The ABC (ATP binding cassette) transporters human P-glycoprotein (ABCB1) and the human MRP5 (ABCC5) are involved in multidrug resistance. Results: In order to elucidate structural and molecular concepts of multidrug resistance, we have constructed a molecular model of the ...
    • Molecular modeling study of the testosterone metabolizing enzyme UDP-glucuronosyltransferase 2B17 

      Trane, Ingmar; Sager, Georg; Dietrichs, Erik Sveberg; Ravna, Aina Westrheim (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-20)
      The dominant sex hormone testosterone is mainly metabolized by liver enzymes belonging to the uridine-diphospho (UDP) glucuronosyltransferase (UGT) family. These enzymes are the main phase II enzymes, and they have an important role in the detoxification of endogenous and exogenous compounds in humans. The aim of the present study was to improve the understanding of the binding properties of UGT2B17. ...
    • Molecularly matched therapy in the context of sensitivity, resistance, and safety; patient outcomes in end-stage cancer - the MetAction study 

      Ree, Anne Hansen; Nygaard, Vigdis; Pedersen, Kjetil Boye; Heinrich, Daniel; Dueland, Svein; Bergheim, Inger Riise; Johansen, Christin; Beiske, Klaus; Negård, Anne; Lund-Iversen, Marius; Nygaard, Vegard; Hovig, Eivind; Nakken, Sigve; Nasser, Salah; Julsrud, Lars; Reisse, Claudius; Ruud, Espen Asak; Kristensen, Vessela N.; Flørenes, Vivi Ann; Geitvik, Gry; Lingjærde, Ole Christian; Børresen-Dale, Anne-Lise; Russnes, Hege Elisabeth Giercksky; Mælandsmo, Gunhild Mari; Flatmark, Kjersti (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-25)
      <i>Background</i>: In precision cancer medicine, the challenge is to prioritize DNA driver events, account for resistance markers, and procure sufficient information for treatment that maintains patient safety. The MetAction project, exploring how tumor molecular vulnerabilities predict therapy response, first established the required workflow for DNA sequencing and data interpretation (2014–2015). ...
    • Monkeypox Virus in Nigeria: Infection Biology, Epidemiology, and Evolution 

      Alakunle, Emmanuel; Moens, Ugo; Nchinda, Godwin; Okeke, Malachy Ifeanyi (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-05)
      Monkeypox is a zoonotic disease caused by monkeypox virus (MPXV), which is a member of orthopoxvirus genus. The reemergence of MPXV in 2017 (at Bayelsa state) after 39 years of no reported case in Nigeria, and the export of travelers’ monkeypox (MPX) from Nigeria to other parts of the world, in 2018 and 2019, respectively, have raised concern that MPXV may have emerged to occupy the ecological and ...
    • Motivasjon for internettbasert kognitiv atferdsterapi ved hjelp av konsultasjonsstøtte: en kvalitativ studie 

      Wilhelmsen, Maja; Lillevoll, Kjersti; Risør, Mette Bech; Høifødt, Ragnhild Sørensen; Johansen, May-Lill; Waterloo, Knut; Eisemann, Martin; Kolstrup, Nils (Journal article; Tidsskriftartikkel, 2014)
    • Motivation to persist with internet-based cognitive behavioural treatment using blended care: a qualitative study. 

      Wilhelmsen, Maja; Lillevoll, Kjersti; Risør, Mette Bech; Høifødt, Ragnhild Sørensen; Johansen, May-Lill; Waterloo, Knut; Eisemann, Martin; Kolstrup, nils (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      The prevalence of depression is high and results in huge costs for society. Internet-based cognitive behavioural treatment (ICBT) has been suggested for use in primary care and has been shown to be more effective when combined with human support. However, non-completion rates remain a challenge. Current recommendations state that steps to improve persistence with ICBT should be determined and the ...
    • Multi-Locus variable number of tandem repeat analysis for rapid and accurate typing of virulent multidrug resistant escherichia coli clones 

      Naseer, Mohammed Umaer; Olsson-Liljequist, Barbro; Woodford, Neil; Dhanji, Hiran; Canton, Rafael; Sundsfjord, Arnfinn; Lindstedt, Bjørn Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      One hundred E. coli isolates from Norway (n = 37), Sweden (n = 24), UK (n = 20) and Spain (n = 19), producing CTX-M-type - (n = 84), or SHV-12 (n = 4) extended spectrum β-lactamases, or the plasmid mediated AmpC, CMY-2 (n = 12), were typed using multi-locus sequence typing (MLST) and multi-locus variable number of tandem repeat analysis (MLVA). Isolates clustered into 33 Sequence Types (STs) and 14 ...
    • A multicentre hospital outbreak in Sweden caused by introduction of a vanB2 transposon into a stably maintained pRUM-plasmid in an Enterococcus faecium ST192 clone. 

      Sivertsen, Audun; Billström, Hanna; Melefors, Öjar; Liljequist, Barbro Olsson; Wisell, Karin Tegmark; Ullberg, Måns; Özenci, Volkan; Sundsfjord, Arnfinn; Hegstad, Kristin (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
      The clonal dissemination of VanB-type vancomycin-resistant Enterococcus faecium (VREfm) strains in three Swedish hospitals between 2007 and 2011 prompted further analysis to reveal the possible origin and molecular characteristics of the outbreak strain. A representative subset of VREfm isolates (n = 18) and vancomycin-susceptible E. faecium (VSEfm, n = 2) reflecting the spread in time and location ...