Now showing items 301-320 of 706

    • Development of a homologous gene replacement approach to study ciprofloxacin resistance in clinical Escherichia coli isolates 

      Valla, Sanne Ekroll (Master thesis; Mastergradsoppgave, 2017-05-15)
      Urinary tract infections are common amongst infectious diseases in humans, and often these infections are caused by uropathogenic Escherichia coli. Effective antimicrobial treatment of infections are medical achievements that should not be taken for granted, as antimicrobial resistance has developed and causes treatments to become ineffective. Further, resistance traits can be spread between unrelated ...
    • Reseptpliktige legemidler og samtidig bruk av lavdose naltrekson (LDN) hos pasienter med kronisk inflammatorisk tarmsykdom. En kvasieksperimentell reseptregisterstudie 

      Simonsen, Pia (Master thesis; Mastergradsoppgave, 2017-05-15)
      BAKGRUNN: Naltrekson er en ikke-selektiv opioidantagonist som tradisjonelt brukes til å behandle opioid- og alkoholavhengighet. Lavdose naltrekson (LDN), 3-5 mg/dag, har senere blitt brukt som «off-label» tilleggsbehandling i flere autoimmune sykdommer, inkludert kronisk inflammatorisk tarmsykdom (IBD). FORMÅL: Formålet med denne studien er å undersøke om det er en assosiasjon mellom bruk av LDN og ...
    • Etablering av et system for å studere funksjonelle konsekvenser av kreftspesifikke DDR2 mutasjoner 

      Aburayya, Mahmoud (Master thesis; Mastergradsoppgave, 2014-05-20)
      Discoidin domene reseptor 2 (DDR2) er en unik reseptor tyrosinkinase (RTK) som aktiveres av ulike typer kollagen. DDR2 er involvert i regulering av celledifferensiering, remodelering av ekstracellulær matriks, cellemigrasjon, og celleproliferasjon. Nye studier viser at DDR2 er mutert i flere kreftformer, og spesielt lungekreft. Konsekvensen av disse kreftspesifikke mutasjoner er i midlertidig ikke ...
    • Melt processability of amorphous solid dispersions during hot-melt extrusion. Screening using vacuum compression moulding and evaluation by rheology and solid-state analysis 

      Ekblad, Nicklas (Master thesis; Mastergradsoppgave, 2018-05-15)
      Soluplus is a suitable excipient for innovative manufacturing techniques such as hot-melt extrusion (HME). While Soluplus is useful for forming amorphous solid dispersions (ASD’s) during HME, the resulting extrudates are often stiff and brittle. In order to achieve suitable dosage forms, with optimal downstream processability, an efficient screening for suitable formulations is required. Vacuum ...
    • A study of Fez1 and Fez2: Localization and knock-out 

      Schäfer, Helene Bekkeli (Master thesis; Mastergradsoppgave, 2016-05-11)
      Autophagy is a fundamental cellular process where cell components get digested in autolysosomes and are recycled. Dysregulation of autophagy is involved in major diseases like cancer, neurodegeneration, inflammation and ischemia. In this thesis we have worked with fasciculation and elongation zeta (Fez) proteins, which are reported to inhibit autophagy. There are at least two mammalian Fez proteins, ...
    • Legemiddelgjennomganger ved sykehjem i Nord-Gudbrandsdalen. Kartlegging av legemiddelbruk og legemiddelrelaterte problemer ved fire sykehjem i Nord-Gudbrandsdalen 

      Stadeløkken, Torunn (Master thesis; Mastergradsoppgave, 2017-05-15)
      Bakgrunn og hensikt: Sykehjemspasienter har mange sykdommer som ofte behandles medikamentelt. Polyfarmasi er derfor vanlig og har blitt assosiert med legemiddelrelaterte problemer (LRPer). Norske studier hvor de utførte legemiddelgjennomganger (LMGer) har vist et gjennomsnittlig antall LRPer hos sykehjemspasienter mellom 1,6-5,1. Overordnet hensikt med prosjektet var å belyse hvordan farmasøytisk ...
    • Collateral sensitivity in clinical Escherichia coli isolates resistant to ciprofloxacin and/or mecillinam 

      Hasund, Camilla Remøy (Master thesis; Mastergradsoppgave, 2017-05-16)
      The escalating emergence of AMR is a growing public health concern, and a result of the use and misuse of antibiotics since its introduction. To prevent the development of resistance and preserve the efficacy of antimicrobial agents, new treatment strategies is of utmost importance. One possible approach may be to take advantage of collateral sensitivity, a phenomenon where bacteria acquiring ...
    • Bruk av reseptpliktige legemidler hos pasienter med hypotyreose eller Sjøgrens syndrom som starter med lavdose naltrekson (LDN) 

      Khong, Kim Phung (Master thesis; Mastergradsoppgave, 2017-05-15)
      De siste årene har Lavdose naltrekson (≤ 5 mg/dag) i økende grad blitt brukt som «off label» støttebehandling ved kroniske smerte, fibromyalgi, multippel sklerose, inflammatorisk tarmsykdom Sjøgrens syndrom, hypotyreose og andre autoimmune lidelser. Det er finnes ingen publiserte studier hvor det er undersøkt effekt av LDN ved behandling hos pasienter med hypotyreose eller Sjøgrens syndrom. Formålet ...
    • Identifying signaling pathway responsible for SRC-3 serine 857 phosphorylation. A study in lung cancer cells 

      Kaur, Gurjit (Master thesis; Mastergradsoppgave, 2014-05-20)
      Signal transduction mediated by protein kinases and phosphatases is complex and highly coordinated. The mitogen activated protein kinases (MAPKs) are key components that transduce extracellular stimuli to biological responses by a three-tier module. The biological functions of steroid receptor coactivator-3 (SRC-3), a coactivator of nuclear hormone receptors and numerous transcription factors, is ...
    • Administrasjonskostnader for ulike formuleringer av rituksimab og trastuzumab i norske helseforetak. En kvalitativ studie 

      Tran, Linda Che (Master thesis; Mastergradsoppgave, 2019-05-15)
      Introduksjon: Kreftklinikken ved Oslo Universitetssykehus (OUS) har estimert administrasjonskostnader for intravenøs infusjon (IV) og subkutan injeksjon (SC) og Sykehusinnkjøp LIS har brukt disse estimatene for å vise at bruk av IV framfor SC av rituksimab og trastuzmab vil være mer kostnadseffektivt. Det er ukjent om disse estimatene er representative for andre helseforetak. Hensikt: Det primære ...
    • Befolkningens kunnskap om antibiotika – en spørreundersøkelse blant apotekkunder 

      Adan, Abdifatah (Master thesis; Mastergradsoppgave, 2017-05-15)
      BAKGRUNN: Uhensiktsmessig og feilaktig bruk av antibiotika er en av de viktigste årsakene til fremveksten av resistente bakterier. Økt antibiotikakunnskap blant allmennheten kan bidra til å oppnå bedre behandlingsresultater og samtidig redusere resistensutvikling hos bakterier. Ett av målene fra Nasjonal strategi mot antibiotikaresistens 2015-2020 er å øke befolkningens kunnskapsnivå om riktig bruk ...
    • Knowledge of antibiotics and antibiotic resistance among Norwegian pharmacy customers – a cross-sectional study 

      Waaseth, Marit; Adan, Abdifatah; Røen, Ingrid L.; Eriksen, Karoline; Stanojevic, Tijana; Halvorsen, Kjell H.; Garcia, Beate Hennie; Holst, Lone; Ulshagen, Karen Marie; Blix, Hege Salvesen; Ariansen, Hilde Louise; Nordeng, Hedvig Marie Egeland (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-15)
      <p><i>Background</i>: Antibiotic resistance is a global health threat. Public knowledge is considered a prerequisite for appropriate use of antibiotics and limited spread of antibiotic resistance. Our aim was to examine the level of knowledge of antibiotics and antibiotic resistance among Norwegian pharmacy customers, and to assess to which degree beliefs, attitudes and sociodemographic factors are ...
    • Novel Scaffolds for Dual Specificity Tyrosine-Phosphorylation-Regulated Kinase (DYRK1A) Inhibitors 

      Czarna, Anna Lucja; Jinhua, Wang; Zelencova, Diana; Liu, Yao; Deng, Xianming; Choi, Hwan Geun; Zhang, Tinghu; Zhou, Wenjun; Chang, Jae Won; Kildalsen, Hanne; Seternes, Ole Morten; Gray, Nathanael S.; Engh, Richard Alan; Rothweiler, Ulli (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-10)
      DYRK1A is one of five members of the dual-specificity tyrosine (Y) phosphorylation-regulated kinase (DYRK) family. The DYRK1A gene is located in the Down syndrome critical region and regulates cellular processes related to proliferation and differentiation of neuronal progenitor cells during early development. This has focused research on its role in neuronal degenerative diseases, including ...
    • The competitive edge of an invading specialist 

      Bøhn, Thomas; Amundsen, Per-Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2001-08-01)
      Introduced species represent major threats to native and natural biodiversity. On the other hand, biologists may increase the understanding of ecological interactions by following communities during establishment of exotic species. Accordingly, feeding ecology and habitat use were studied in native whitefish (<i>Coregonus lavaretus</i>) and recently invading vendace (<i>C. albula</i>) in two lake ...
    • Invasion-mediated changes in the population biology of a dimorphic whitefish Coregonus lavaretus population 

      Bøhn, Thomas; Amundsen, Per-Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2004-02-26)
      Population biology changes in native dimorphic whitefish <i>Coregonus lavaretus</i> were studied over a decade in the subarctic Pasvik watercourse, where large biotric changes occurred due to an invasion by vendace <i> C. albula</i>. Although initially recorded in the upstream part of the watercourse, where it is now the dominant pelagic species, the vendace subsequently also colonised the downstream ...
    • Mimicking regional and fasted/fed state conditions in the intestine with the mucus-PVPA in vitro model: The impact of pH and simulated intestinal fluids on drug permeability 

      Falavigna, Margherita; Klitgaard, Mette; Steene, Erik; Flaten, Gøril Eide (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-02-27)
      Intestinal drug absorption following oral administration can be influenced by regional conditions (absorbing surface area, bacterial flora, motility, pH, mucus thickness) and food intake, all of which affect drug solubility and permeability. Therefore, it is crucial to assess the impact of these conditions on the drugability of drugs and formulations. In this study, the ability of the liposome-based ...
    • Assessing Potentially Inappropriate Medications in Nursing Home Residents by NORGEP-NH Criteria 

      Halvorsen, Kjell H.; Kucukcelik, Sinan; Garcia, Beate Hennie; Svendsen, Kristian (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-05)
      <p><i>Background</i>: Nursing home residents often have several conditions that necessitate the use of multiple medicines. This study investigates the prevalence of potentially inappropriate medications (PIMs) and its associations with sex, age, number of medicines, and study location (rural/urban).</p> <p><i>Methods:</i> A cross-sectional study of long-term care residents from six nursing ...
    • Escherichia coli Sequence Type 410 Is Causing New International High-Risk Clones 

      Roer, Louise; Overballe-Petersen, Søren; Hansen, Frank; Schønning, Kristian; Wang, Mikala; Røder, Bent L; Hansen, , Dennis S; Justesen, Ulrik S; Andersen, Leif P; Fulgsang-Damgaard, David; Hopkins, Katie L; Woodford, Neil; Falgenhauer, Linda; Chakraborty, Trinad; Samuelsen, Ørjan; Sjöström, Karin; Johannesen, Thor B; Ng, Kim; Nielsen, Jens; Ethelberg, Steen; Stegger, Marc; Hammerum, Anette M.; Hasman, Henrik (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-07-18)
      <i>Escherichia coli</i> sequence type 410 (ST410) has been reported worldwide as an extraintestinal pathogen associated with resistance to fluoroquinolones, third-generation cephalosporins, and carbapenems. In the present study, we investigated national epidemiology of ST410 <i>E. coli</i> isolates from Danish patients. Furthermore, <i>E. coli</i> ST410 was investigated in a global context to provide ...
    • Isolation and Characterization of Secondary Metabolites from Arctic Marine Hydroids 

      Harvey, Therese (Master thesis; Mastergradsoppgave, 2018-05-15)
      Marine bioprospecting is the systematic search for and discovery of products from Nature, with potential of being developed into commercially available pharmaceuticals. The ocean represents the largest habitat on Earth, and represent a great resource of organisms with unique biological and chemical diversity. The marine environment makes the living condition challenging. To survive these conditions, ...
    • Betydningen av CYP2D6-genotype for terapisvikt av ulike antipsykotika. En studie basert på eksisterende laboratoriedata fra farmakologiske rutineanalyser 

      Hodt, Karianne Solum (Master thesis; Mastergradsoppgave, 2018-05-15)
      Hensikt: Mange antipsykotiske legemidler metaboliseres via det genetisk polymorfe enzymet CYP2D6. Hensikten med dette masterprosjektet var å undersøke i hvilken grad CYP2D6-genotype påvirker serumkonsentrasjonen og byttefrekvens av de antipsykotiske legemidlene risperidon, haloperidol, perfenazin og zuklopentiksol, som alle er CYP2D6-substrater. Metode: Pasienter med utført CYP2D6-genotyping og ...