Now showing items 121-140 of 1059

    • Chitinolytic enzymes contribute to the pathogenicity of Aliivibrio salmonicida LFI1238 in the invasive phase of cold-water vibriosis 

      Skåne, Anna; Edvardsen, Per Kristian Thorén; Cordara, Gabriele; Loose, Jennifer Sarah Maria; Leitl, Kira Daryl; Krengel, Ute; Sørum, Henning; Askarian, Fatemeh; Vaaje-Kolstad, Gustav (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-08)
      Background - Aliivibrio salmonicida is the causative agent of cold-water vibriosis in salmonids (Oncorhynchus mykiss and Salmo salar L.) and gadidae (Gadus morhua L.). Virulence-associated factors that are essential for the full spectrum of A. salmonicida pathogenicity are largely unknown. Chitin-active lytic polysaccharide monooxygenases (LPMOs) have been indicated to play roles in both chitin ...
    • Antenatal intravenous immunoglobulins in pregnancies at risk of fetal and neonatal alloimmune thrombocytopenia: comparison of neonatal outcome in treated and nontreated pregnancies 

      Ernstsen, Siw Leiknes; Ahlen, Maria Therese; Johansen, Tiril; Bertelsen, eirin listau; Kjeldsen-Kragh, Jens; Tiller, Heidi (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-29)
      BACKGROUND: Maternal alloantibodies to human platelet antigen-1a can cause severe intracranial hemorrhage in a fetus or newborn. Although never evaluated in placebo-controlled clinical trials, most Western countries use off-label weekly administration of high-dosage intravenous immunoglobulin in all pregnant women with an obstetrical history of fetal and neonatal alloimmune thrombocytopenia. In ...
    • Detection of Klebsiella pneumoniae human gut carriage: a comparison of culture, qPCR, and whole metagenomic sequencing methods 

      Lindstedt, Kenneth; Buczek, Dorota Julia; Pedersen, Torunn Annie; Hjerde, Erik; Raffelsberger, Niclas Peter; Suzuki, Yutaka; Brisse, Sylvain; Holt, Kathryn E.; Samuelsen, Ørjan; Sundsfjord, Arnfinn (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-31)
      Klebsiella pneumoniae is an important opportunistic healthcare-associated pathogen and major contributor to the global spread of antimicrobial resistance. Gastrointestinal colonization with K. pneumoniae is a major predisposing risk factor for infection and forms an important hub for the dispersal of resistance. Current culture-based detection methods are time consuming, give limited intra-sample ...
    • The Small Heat Shock Protein, HSPB1, Interacts with and Modulates the Physical Structure of Membranes 

      Csoboz, Balint; Gombos, Imre; Kóta, Zoltán; Dukic, Barbara; Klement, Éva; Varga-Zsíros, Vanda; Lipinszki, Zoltán; Páli, Tibor; Vígh, László; Török, Zsolt (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-30)
      Small heat shock proteins (sHSPs) have been demonstrated to interact with lipids and modulate the physical state of membranes across species. Through these interactions, sHSPs contribute to the maintenance of membrane integrity. HSPB1 is a major sHSP in mammals, but its lipid interaction profile has so far been unexplored. In this study, we characterized the interaction between HSPB1 and phospholipids. ...
    • Changes in the proteome and secretome of rat liver sinusoidal endothelial cells during early primary culture and effects of dexamethasone 

      Li, Ruomei; Bhandari, Sabin; Martinez-Zubiaurre, Inigo; Bruun, Jack-Ansgar; Urbarova, Ilona Halva; Smedsrød, Bård; Simon-Santamaria, Jaione; Sørensen, Karen Kristine (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-02)
      Introduction<p> <p>Liver sinusoidal endothelial cells (LSECs) are specialized fenestrated scavenger endothelial cells involved in the elimination of modified plasma proteins and tissue turnover waste macromolecules from blood. LSECs also participate in liver immune responses. A challenge when studying LSEC biology is the rapid loss of the in vivo phenotype in culture. In this study, we have ...
    • A DNA-Free Editing Platform for Genetic Screens in Soybean via CRISPR/Cas9 Ribonucleoprotein Delivery 

      Subburaj, Saminathan; Zanatta, Caroline Bedin; Nunn, Jennifer Ann Lillebo; Hoepers, Aline Martins; Nodari, Rubens Onofre; Agapito-Tenfen, Sarah Zanon (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-12)
      CRISPR/Cas9-based ribonucleoprotein (RNP)-mediated system has the property of minimizing the effects related to the unwanted introduction of vector DNA and random integration of recombinant DNA. Here, we describe a platform based on the direct delivery of Cas9 RNPs to soybean protoplasts for genetic screens in knockout gene-edited soybean lines without the transfection of DNA vectors. The platform ...
    • Cost-effectiveness of molecularly matched off-label therapies for end-stage cancer–the MetAction precision medicine study 

      Ree, Anne Hansen; Mælandsmo, Gunhild Mari; Flatmark, Kjersti; Russnes, Hege Elisabeth Giercksky; Casteneda, Monica Gomez; Aas, Eline (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-09)
      Background: Precision cancer medicine (PCM), frequently used for the expensive and often modestly efficacious off-label treatment with medications matched to the tumour genome of end-stage cancer, challenges healthcare resources. We compared the health effects, costs and cost-effectiveness of our MetAction PCM study with corresponding data from comparator populations given best supportive care ...
    • CRISPR/Cas9 to Silence Long Non-Coding RNAs 

      Rosenlund, Ingrid A; Calin, George A.; Dragomir, Mihnea Paul; Knutsen, Erik (Chapter; Bokkapittel, 2021-06-24)
      Knock-out (KO) of long non-coding RNAs (lncRNAs) enables functional characterization of this still poorly described group of transcripts. One of the most efficient and simplest methods to achieve complete KO of a lncRNA is by employing CRISPR/Cas gene editing. As most lncRNAs are not well annotated, their individual functional regions are not defined, and the majority of the transcripts are not ...
    • The marine natural product mimic MPM-1 is cytolytic and induces DAMP release from human cancer cell lines 

      von Hofsten, Susannah; Paulsen, Marianne Hagensen; Magnussen, Synnøve; Ausbacher, Dominik; Kranz, Mathias; Bayer, Annette; Strøm, Morten Bøhmer; Berge, Gerd (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-16)
      Bioprospecting contributes to the discovery of new molecules with anticancer properties. Compounds with cytolytic activity and the ability to induce immunogenic cell death can be administered as intratumoral injections with the aim to activate anti-tumor immune responses by causing the release of tumor antigens as well as damage-associated molecular patterns (DAMPs) from dying cancer cells. In ...
    • Identification of novel serotonin transporter compounds by virtual Screening 

      Gabrielsen, Mari; Kurczab, Rafal; Siwek, Agata; Wolak, Malgorzata; Ravna, Aina Westrheim; Kristiansen, kurt; Kufareva, Irina; Abagyan, Ruben; Nowak, Gabriel; Chilmonczyk, Zdzislaw; Sylte, Ingebrigt; Bojarski, Andrzej J. (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-02-12)
      The serotonin (5-hydroxytryptamine, 5-HT) transporter (SERT) plays an essential role in the termination of serotonergic neurotransmission by removing 5-HT from the synaptic cleft into the presynaptic neuron. It is also of pharmacological importance being targeted by antidepressants and psychostimulant drugs. Here, five commercial databases containing approximately 3.24 million drug-like compounds ...
    • Dietary chlorpyrifos-methyl exposure impair transcription of immune-, detoxification- and redox signaling genes in leukocytes isolated from cod (Gadus morhua) 

      Holen, Elisabeth; Espe, Marit; Larsen, Anett Kristin; Olsvik, Pål Asgeir (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-05)
      Inclusion of new environmental toxicants increase with the amount of plant ingredients substituting marine proteins and oils in feed for farmed Atlantic salmon (Salma salar). Agricultural pesticides like chlorpyrifos-methyl, present in commercial salmon feeds, may affect salmon immune and detoxification responses. Atlantic cod (Gadus morhua), surrounding the net pens, grazing on feces and uneaten ...
    • NORM/NORM-VET 2021: Usage of Antimicrobial Agents and Occurrence of Antimicrobial Resistance in Norway 

      Akselsen, Per Espen; Andersen, Cecilie Torp; Caugant, Dominique Andree Yvette; Dansie, Live Storehagen; Elstrøm, Petter (Research report; Forskningsrapport, 2022)
      Veterinærinstituttet overvåker forekomst av antibiotikaresistens i mikrober fra fôr, dyr og næringsmidler på oppdrag fra Mattilsynet. Dette gjøres i regi av NORM-VET, som er forkortelse for «Norsk overvåkingsprogram for antibiotikaresistens i mikrober fra fôr, dyr og næringsmidler». Data fra NORM-VET publiseres i den årlige NORM/NORM-VET rapporten som presenterer data om forekomst av antibiotikaresistens ...
    • p62 and NDP52 Proteins Target Intracytosolic Shigella and Listeria to Different Autophagy Pathways 

      Mostowy, Serge; Sancho-Shimizu, Vanessa; Hamon, Mélanie Anne; Simeone, Roxane; Brosch, Roland; Johansen, Terje; Cossart, Pascale (Journal article; Tidsskriftartikkel; Peer reviewed, 2011-06-06)
      Autophagy is an important mechanism of innate immune defense. We have recently shown that autophagy components are recruited with septins, a new and increasingly characterized cytoskeleton component, to intracytosolic Shigella that have started to polymerize actin. On the other hand, intracytosolic Listeria avoids autophagy recognition by expressing ActA, a bacterial effector required for actin ...
    • Factors shaping initial decision-making to self-test amongst cohabiting couples in urban Blantyre, Malawi 

      Kumwenda, Moses; Munthali, Alister; Phiri, Mackwellings; Mwale, Daniel; Gutteberg, Tore Jarl; MacPherson, Eleanor; Theobald, Sally J.; Corbett, Liz; Desmond, Nicola (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-06-15)
      In sub-Saharan Africa, most new HIV infections occur in stable relationships, making couples testing an important intervention for HIV prevention. We explored factors shaping the decision-making of cohabiting couples who opted to self-test in Blantyre, Malawi. Thirty-four self-tested participants (17 couples) were interviewed. Motivators for HIV self-testing (HIVST) emerged at three main levels. ...
    • Improving public cancer care by implementing precision medicine in Norway: IMPRESS-Norway 

      Helland, Åslaug; Russnes, Hege Elisabeth Giercksky; Fagereng, Gro Live; Al-Shibli, Khalid Ibrahim; Andersson, Yvonne; Berg, Thomas; Bjørge, Line; Blix, Egil Støre; Bjerkehagen, Bodil; Brabrand, Sigmund; CAMERON, MARTE; Dalhaug, Astrid; Dietzel, Dalia; Dønnem, Tom; Enerly, Espen; Flobak, Åsmund; Fluge, Sverre; Gilje, Bjørnar; Gjertsen, Bjørn Tore; Grønberg, Bjørn Henning; Grønås, Kari; Guren, Tormod Kyrre; Hamre, Hanne Mari; Haug, Åse; Heinrich, Daniel; Hjortland, Geir Olav; Hovig, Eivind; Hovland, Randi; Iversen, Ann-Charlotte; Janssen, Emiel; Kyte, Jon A; Gythfeldt, Hedda; Lothe, Ragnhild Adelheid; Lund, Jo-Åsmund; Meza, Leonardo Zepeda; Munthe-Kaas, Monica Cheng; Nguyen, Olav Toai Duc; Niehusmann, Pitt; Nilsen, Hilde; Puco, Katarina; Ree, Anne Hansen; Riste, Tonje Bøyum; Semb, Karin; Steinskog, Eli Sihn Samdal; Stensvold, Andreas; Suhrke, Pål; Tennøe, Øyvind Krohn; Tjønnfjord, Geir Erland; Vassbotn, Liv Jorunn; Aas, Eline; Aasebø, Kristine Øverås; Tasken, Kjetil; Smeland, Sigbjørn (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-14)
      Background: Matching treatment based on tumour molecular characteristics has revolutionized the treatment of some cancers and has given hope to many patients. Although personalized cancer care is an old concept, renewed attention has arisen due to recent advancements in cancer diagnostics including access to high-throughput sequencing of tumour tissue. Targeted therapies interfering with cancer ...
    • The effect of Riociguat on cardiovascular function and efficiency in healthy, juvenile pigs 

      Næsheim, Torvind; How, Ole-Jakob; Myrmel, Truls (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-12)
      <p><i>Introduction - </i>Riociguat is a soluble guanylate cyclase stimulator approved for the treatment of pulmonary hypertension. Its effect on cardiometabolic efficiency is unknown. A potential cardiac energy sparing effect of this drug could imply a positive prognostic effect, particularly in patients with right heart failure from pulmonary hypertension. <p><i>Method - </i>We infused Riociguat ...
    • Structural basis for PoxtA-mediated resistance to phenicol and oxazolidinone antibiotics 

      Crowe-McAuliffe, Caillan; Murina, Victoriia; Turnbull, Kathryn Jane; Huch, Susanne; Kasari, Marje; Takada, Hiraku; Nersisyan, Lilit; Sundsfjord, Arnfinn; Hegstad, Kristin; Atkinson, Gemma C.; Pelechano, Vicent; Wilson, Daniel N.; Hauryliuk, Vasili (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-06)
      PoxtA and OptrA are ATP binding cassette (ABC) proteins of the F subtype (ABCF). They confer resistance to oxazolidinone and phenicol antibiotics, such as linezolid and chloramphenicol, which stall translating ribosomes when certain amino acids are present at a defined position in the nascent polypeptide chain. These proteins are often encoded on mobile genetic elements, facilitating their rapid ...
    • miR-101-5p Acts as a Tumor Suppressor in HER2-Positive Breast Cancer Cells and Improves Targeted Therapy 

      Normann, Lisa Svartdal; Haugen, Mads Haugland; Aure, Miriam Ragle; Kristensen, Vessela N.; Mælandsmo, Gunhild Mari; Sahlberg, Kristine Kleivi (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-01)
      Purpose: Human epidermal growth factor receptor 2 positive (HER2+) breast cancers responding poorly to targeted therapy need improved treatment options. miR-101-5p has shown tumor-suppressive properties in multiple cancer forms, and we assessed the effect and mechanism of action of this miRNA in HER2+ breast cancer.<p> <p>Methods: Expression levels of miR-101-5p in two clinical datasets, TCGA and ...
    • The Interaction Between Venous Thromboembolism and Socioeconomic Status on the Risk of Disability Pension 

      Jørgensen, Helle; Horváth-Puhó, Erzsébet; Laugesen, Kristina; Brækkan, Sigrid Kufaas; Hansen, John Bjarne; Sørensen, Henrik Toft (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-14)
      Background: Venous thromboembolism (VTE) is associated with increased risk of disability pension. How socioeconomic status (SES) impacts the risk of disability pension after a VTE is unknown. The aim of this nationwide population based cohort study to investigate the interaction between SES and incident VTE on the risk of subsequent disability pension.<p> <p>Methods: Using Danish national medical ...
    • Characterization and Fitness Cost of Tn7100, a Novel Integrative and Conjugative Element Conferring Multidrug Resistance in Haemophilus influenzae 

      Johannessen, Helene; Anthonisen, Inger Lill; Zecic, Nermin; Hegstad, Kristin; Ranheim, Trond Egil; Skaare, Dagfinn (Journal article; Tidsskriftartikkel, 2022-07-22)
      A multidrug-resistant (MDR) strain of Haemophilus influenzae, Hi-228, with phenotypic resistance toward ampicillin, cefotaxime, chloramphenicol, gentamicin, and azithromycin, was isolated in Oslo, Norway. The strain was part of a clonal outbreak (2016–2017) comprising five ST143 strains with identical resistotypes. Hi-228 carries a novel integrative and conjugative element (ICE), Tn7100, contributing ...