Now showing items 121-140 of 1154

    • Deep learning-based image analysis reveals significant differences in the number and distribution of mucosal CD3 and γδ T cells between Crohn's disease and ulcerative colitis 

      Røyset, Elin Synnøve; Pettersen, Henrik Sahlin; Xu, Weili; Larbi, Anis; Sandvik, Arne Kristian; Steigen, Sonja Eriksson; Catalan-Serra, Ignacio; Bakke, Ingunn (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-23)
      Colon mucosae of ulcerative colitis (UC) and Crohn's disease (CD) display differences in the number and distribution of immune cells that are difficult to assess by eye. Deep learning-based analysis on whole slide images (WSIs) allows extraction of complex quantitative data that can be used to uncover different inflammatory patterns. We aimed to explore the distribution of CD3 and γδ T cells in colon ...
    • Prevention of Fetal/Neonatal Alloimmune Thrombocytopenia in Mice: Biochemical and Cell Biological Characterization of Isoforms of a Human Monoclonal Antibody 

      Mørtberg, Trude Victoria; Zhi, Huiying; Vidarsson, Gestur; Foss, Stian; Lissenberg-Thunnissen, Suzanne; Wuhrer, Manfred; Michaelsen, Terje Einar; Skogen, Bjørn; Stuge, Tor Brynjar; Andersen, Jan Terje; Newman, Peter J.; Ahlen, Maria Therese (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-01)
      Maternal alloantibodies toward paternally inherited Ags on fetal platelets can cause thrombocytopenia and bleeding complications in the fetus or neonate, referred to as fetal and neonatal alloimmune thrombocytopenia (FNAIT). This is most commonly caused by Abs against the human platelet Ag (HPA)-1a in Caucasians, and a prophylactic regimen to reduce the risk for alloimmunization to women at risk ...
    • Praksisstudienes omfang og organisering i bioingeniørutdanningen 

      Furuseth, May-Tove; Kvissel, Anne Katrine; Berg, Vivian; Kjøbli, Eli; Volden, Vivi; Solli, Ann Iren; Granerud, Beathe Kiland; Lie-Jensen, Anette Christensen; Nygård, Irene; Alm, Bente; Ersvær, Elisabeth; Sjøholt, Gry (Journal article; Tidsskriftartikkel; Peer reviewed, 2022)
      Siden 2005 har omfang og innhold i bioingeniørutdanningen vært definert av en nasjonal rammeplan for å sikre likeverdig sluttkompetanse for alle kandidater. Fra 2019 ble en ny forskrift om nasjonale retningslinjer fastsatt. Både tidligere rammeplan og nye retningslinjer har regulert læringsutbyttene og omfang av praksis i utdanningen. I denne studien kartlegges omfang og organisering av praksisstudiene ...
    • 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 ...
    • Tuning of Liver Sieve: The Interplay between Actin and Myosin Regulatory Light Chain Regulates Fenestration Size and Number in Murine Liver Sinusoidal Endothelial Cells 

      Zapotoczny, Barlomiej; Szafranska, Karolina; Lekka, Malgorzata; Ahluwalia, Balpreet Singh; McCourt, Peter Anthony (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-30)
      Liver sinusoidal endothelial cells (LSECs) facilitate the efficient transport of macromolecules and solutes between the blood and hepatocytes. The efficiency of this transport is realized via transcellular nanopores, called fenestrations. The mean fenestration size is 140 ± 20 nm, with the range from 50 nm to 350 nm being mostly below the limits of diffraction of visible light. The cellular ...
    • Crosstalk between AML and stromal cells triggers acetate secretion through the metabolic rewiring of stromal cells 

      Vilaplana-Lopera, Nuria; Cuminetti, Vincent; Almaghrabi, Ruba; Papatzikas, Grigorios; Rout, Ashok Kumar; Jeeves, Mark; González, Elena; Alyahyawi, Yara; Cunningham, Alan; Erdem, Ayşegül; Schnütgen, Frank; Raghavan, Manoj; Potluri, Sandeep; Cazier, Jean-Baptiste; Schuringa, Jan Jacob; Reed, Michelle AC; Arranz, Lorena; Günther, Ulrich L; Garcia, Paloma (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-02)
      Acute myeloid leukaemia (AML) cells interact and modulate components of their surrounding microenvironment into their own benefit. Stromal cells have been shown to support AML survival and progression through various mechanisms. Nonetheless, whether AML cells could establish beneficial metabolic interactions with stromal cells is underexplored. By using a combination of human AML cell lines and AML ...
    • ALYREF, a novel factor involved in breast carcinogenesis, acts through transcriptional and post-transcriptional mechanisms selectively regulating the short NEAT1 isoform 

      Klec, Christiane; Knutsen, Erik; Schwarzenbacher, Daniela; Jonas, Katharina; Pasculli, Barbara; Heitzer, Ellen; Rinner, Beate; Krajina, Katarina; Prinz, Felix; Gottschalk, Benjamin; Ulz, Peter; Deutsch, Alexander; Prokesch, Andreas; Jahn, Stephan W.; Lellahi, Seyed Mohammad; Perander, Maria; Barbano, Raffaela; Graier, Wolfgang F.; Parrella, Paola; Calin, George Adrian; Pichler, Martin (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-01)
      The RNA-binding protein ALYREF (THOC4) is involved in transcriptional regulation and nuclear mRNA export, though its role and molecular mode of action in breast carcinogenesis are completely unknown. Here, we identifed high ALYREF expression as a factor for poor survival in breast cancer patients. ALYREF signifcantly infuenced cellular growth, apoptosis and mitochondrial energy metabolism in ...
    • Antimicrobial susceptibility profiles of clinically important bacterial pathogens at the Kamuzu Central Hospital in Lilongwe, Malawi 

      Choonara, Faheema E.; Haldorsen, Bjørg; Ndhlovu, Isaac; Saulosi, Osborne; Maida, Tarsizio; Lampiao, Fanuel; Simonsen, Gunnar Skov; Essack, Sabiha Y.; Sundsfjord, Arnfinn (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-01)
      Background The aim of this prospective study was to ascertain antimicrobial resistance (AMR) in clinical bacterial pathogens from in-hospital adult patients at a tertiary hospital in Lilongwe, Malawi. Methods<p> <p>Clinical specimens (blood culture, pus, urine and cerebrospinal fluid) collected during June to December 2017 were examined for bacterial growth in standard aerobic conditions. One ...
    • Guidelines on models of diabetic heart disease 

      Heather, Lisa C.; Hafstad, Anne Dragøy; Halade, Ganesh V.; Harmancey, Romain; Mellor, Kimberley M.; Mishra, Paras K.; Mulvihill, Erin E.; Nabben, Miranda; Nakamura, Michinari; Rider, Oliver J.; Ruiz, Matthieu; Wende, Adam R.; Ussher, John R. (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-08)
      Diabetes is a major risk factor for cardiovascular diseases, including diabetic cardiomyopathy, atherosclerosis, myocardial infarction, and heart failure. As cardiovascular disease represents the number one cause of death in people with diabetes, there has been a major emphasis on understanding the mechanisms by which diabetes promotes cardiovascular disease, and how antidiabetic therapies impact ...
    • 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 ...
    • Determinants of Staphylococcus aureus colonization and infection: Characterization of interaction between serine-aspartate containing protein D and human Siglec11 and Siglec16 

      Spahiu, Ira (Master thesis; Mastergradsoppgave, 2021-10-15)
      <p><i>Staphylococcus aureus</i> is a Gram-positive opportunistic pathogen responsible for a range of infections that can lead to fatal invasive diseases such as pneumonia or osteomyelitis. Approximately 30% of the healthy adult population are persistently colonized by <i>S. aureus</i> strains in their anterior nares. The molecular mechanism underlying <i>S. aureus</i> colonization and infection ...