Viser treff 561-580 av 1054

    • A Long-Term Low-Frequency Hospital Outbreak of KPC-Producing Klebsiella pneumoniae Involving Intergenus Plasmid Diffusion and a Persisting Environmental Reservoir 

      Tofteland, Ståle; Naseer, Mohammed Umaer; Lislevand, Jan Helge; Sundsfjord, Arnfinn; Samuelsen, Ørjan (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Background: To study the molecular characteristics of a long-term, low frequency outbreak of blaKPC-2 in a low prevalence setting involving the hospital environment. Methodology/Principal Findings: KPC-producing bacteria were screened by selective chromogenic agar and Real-Time PCR. The presence of antibiotic resistance genes was ascribed by PCRs and subsequent sequencing, and the KPC-producing isolates ...
    • Long-Term Use of Lipid-Lowering Drugs Slows Progression of Carotid Atherosclerosis The Tromso Study 1994 to 2008 

      Herder, Marit; Arntzen, Kjell Arne; Johnsen, Stein Harald; Eggen, Anne Elise; Mathiesen, Ellisiv B. (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Data on the effect of lipid-lowering drugs (LLD) on carotid atherosclerosis outside clinical trials are limited. The aim of this study was to determine the effect of LLD on change in carotid intima media thickness and total plaque area in a general population. Subjects were 1532 women and 1442 men who participated in a longitudinal population-based study with ultrasound examination of intima media ...
    • Longitudinal changes in blood biomarkers and their ability to predict type 2 diabetes mellitus—The Tromsø study 

      Allaoui, Giovanni; Rylander, Charlotta; Averina, Maria; Wilsgaard, Tom; Fuskevåg, Ole Martin; Berg, Vivian (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-11)
      Introduction: Identification of individuals at high risk of developing type 2 diabetes mellitus (T2DM) is important for early prevention of the disease. Once T2DM is established, it is difficult to treat and is associated with cardiovascular complications and increased mortality. We aimed to describe pre- and post-diagnostic changes in blood biomarker concentrations over 30 years in individuals ...
    • A Look into the Melting Pot: The mecC-Harboring Region Is a Recombination Hot Spot in Staphylococcus stepanovicii 

      Semmler, Torsten; Harrison, Ewan M.; Lübke-Becker, Antina; Ulrich, Rainer G.; Wieler, Lothar H.; Guenther, Sebastian; Stamm, Ivonne; Hanssen, Anne-Merethe; Holmes, Mark A.; Vincze, Szilvia; Walther, Birgit (Journal article; Tidsskriftartikkel, 2016-01-22)
      INTRODUCTION Horizontal gene transfer (HGT) is an important driver for resistance- and virulence factor accumulation in pathogenic bacteria such as Staphylococcus aureus. METHODS Here, we have investigated the downstream region of the bacterial chromosomal attachment site (attB) for the staphylococcal cassette chromosome mec (SCCmec) element of a commensal mecC-positive Staphylococcus ...
    • Loss of deuterium in faecal solids and by sequestration in reindeer. Effect on doubly labelled water studies. 

      Milne, Eric; Gotaas, Geir; Haggarty, Paul; Tyler, Nicholas J.C. (Journal article; Peer reviewed; Tidsskriftartikkel, 2000)
    • Loss of S100A14 expression at the tumor-invading front correlates with poor differentiation and worse prognosis in oral squamous cell carcinoma 

      Pandey, Sushma; Osman, Tarig Al-Hadi; Sharma, Sunita; Vallenari, Evan Michael; Shahdafar, Aboulghassem; Pun, Chin B.; Gautam, Dej K.; Uhlin-Hansen, Lars; Rikardsen, Oddveig G; Johannessen, Anne Christine; Costea, Daniela Elena; Sapkota, Dipak (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-23)
      <i>Background</i> - We previously showed a tumor‐suppressive function of S100A14 in oral squamous cell carcinoma (OSCC). This study aimed to examine the prognostic significance and differentiation‐related function of S100A14 in OSCC.<p><p> <i>Methods</i> - S100A14 expression was examined in 170 OSCCs from Norwegian and Nepalese populations using immunohistochemistry. Pro‐differentiation function ...
    • Low adiponectin is associated with diastolic dysfunction in women: A cross-sectional study from the Tromsø Study 

      Norvik, Jon Viljar; Schirmer, Henrik; Ytrehus, Kirsti; Jenssen, Trond Geir; Zykova, Svetlana; Eggen, Anne Elise; Eriksen, Bjørn Odvar; Solbu, Marit Dahl (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-03-14)
      Background: Heart failure with preserved ejection fraction is closely associated with diastolic dysfunction and related to obesity and female sex. We investigated whether adiponectin, an adipocyte-secreted protein hormone with cardioprotective effects, was associated with indices of diastolic dysfunction, and whether the association was sex dependent. <br>Methods: We conducted a cross-sectional ...
    • Low Expression of miR-424-3p is Highly Correlated with Clinical Failure in Prostate Cancer 

      Richardsen, Elin; Andersen, Sigve; Al-Saad, Samer; Rakaee, Mehrdad; Nordby, Yngve; Pedersen, Mona Irene; Ness, Nora; Ingebriktsen, Lise; Fassina, Ambrogio; Tasken, Kristin Austlid; Millls, Ian; Dønnem, Tom; Bremnes, Roy M.; Rasmussen Busund, Lill-Tove (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-23)
      Prostate cancer (PC) is a highly heterogenous disease and one of the leading causes of mortality in developed countries. Recently, studies have shown that expression of immune checkpoint proteins are directly or indirectly repressed by microRNAs (miRs) in many types of cancers. The great advantages of using miRs based therapy is the capacity of these short transcripts to target multiple molecules ...
    • Low FEV1, smoking history, and obesity are factors associated with oxygen saturation decrease in an adult population cohort 

      Vold, Monica Linea; Aasebø, Ulf; Melbye, Hasse (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
    • Low Sensitivity of the Formol-Ethyl Acetate Sedimentation Concentration Technique in Low-Intensity Schistosoma japonicum Infections 

      Lier, Tore; Wang, TC; Lu, D; Simonsen, Gunnar Skov; Haukland, Hanne H; Haukland, HH; Vennervald, BJ; Johansen, MV (Journal article; Tidsskriftartikkel, 2009)
    • Low Z-4OHtam concentrations are associated with adverse clinical outcome among early stage premenopausal breast cancer patients treated with adjuvant tamoxifen 

      Helland, Thomas; Naume, Bjørn; Hustad, Steinar; Bifulco, Ersilia; Kvaløy, Jan Terje; Sætersdal, Anna Barbro; Synnestvedt, Marit; Lende, Tone Hoel; Gilje, Bjørnar; Mjaaland, Ingvil; Weyde, Kjetil; Blix, Egil Støre; Wiedswang, Gro; Borgen, Elin; Hertz, Daniel Louis; Janssen, Emiel; Mellgren, Gunnar; Søiland, Håvard (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-12-14)
      Abstract Low steady‐state levels of active tamoxifen metabolites have been associated with inferior treatment outcomes. In this retrospective analysis of 406 estrogen receptor‐positive breast cancer (BC) patients receiving adjuvant tamoxifen as initial treatment, we have associated our previously reported thresholds for the two active metabolites, Z‐endoxifen and Z‐4‐hydroxy‐tamoxifen (Z‐4OHtam), ...
    • LTX-315 sequentially promotes lymphocyte-independent and lymphocyte-dependent antitumor effects 

      Liao, Hsin-Wei; Garris, Christopher; Pfirschke, Christina; Rickelt, Steffen; Arlauckas, Sean; Siwicki, Marie; Kohler, Rainer; Weissleder, Ralph; Sundvold-Gjerstad, Vibeke; Sveinbjørnsson, Baldur; Rekdal, Øystein; Pittet, Mikael J. (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-14)
      LTX-315 is an oncolytic peptide that has antitumor efficacy in mice grafted with various tumor cell lines and is currently being tested in phase II clinical trials. Here we aimed to further evaluate LTX-315 in conditional genetic mouse models of cancer that typically resist current treatment options and to better understand the drug’s mode of action in vivo. We report LTX-315 mediates profound ...
    • LTX-315-enabled, radiotherapy-boosted immunotherapeutic control of breast cancer by NK cells 

      Yamazaki, Takahiro; Wennerberg, Erik; Hensler, Michal; Buqué, Aitziber; Kraynak, Jeffrey; Fucikova, Jitka; Zhou, Xi Kathy; Rekdal, Øystein; Demaria, Sandra; Galluzzi, Lorenzo (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-10)
      LTX-315 is a nonameric oncolytic peptide in early clinical development for the treatment of solid malignancies. Preclinical and clinical evidence indicates that the anticancer properties of LTX-315 originate not only from its ability to selectively kill cancer cells, but also from its capacity to promote tumortargeting immune responses. Here, we investigated the therapeutic activity and immunological ...
    • LTX-315: a first-in-class oncolytic peptide that reprograms the tumor microenvironment 

      Sveinbjørnsson, Baldur; Camilio, Ketil Andre; Haug, Bengt Erik; Rekdal, Øystein (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-05-08)
      The oncolytic peptide LTX-315, which has been <i>de novo</i> designed based on structure– activity relationship studies of host defense peptides, has the ability to kill human cancer cells and induce specific anticancer immune response when injected locally into tumors established in immunocompetent mice. The oncolytic effect of LTX-315 involves perturbation of plasma membrane and the mitochondria ...
    • Lulworthinone: In Vitro Mode of Action Investigation of an Antibacterial Dimeric Naphthopyrone Isolated from a Marine Fungus 

      Juskewitz, Eric; Mishchenko, Ekaterina; Dubey, Vishesh Kumar; Jenssen, Marte; Jakubec, Martin; Rainsford, Philip; Isaksson, Johan Mattias; Andersen, Jeanette Hammer; Ericson, Johanna U (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-21)
      Treatment options for infections caused by antimicrobial-resistant bacteria are rendered ineffective, and drug alternatives are needed—either from new chemical classes or drugs with new modes of action. Historically, natural products have been important contributors to drug discovery. In a recent study, the dimeric naphthopyrone lulworthinone produced by an obligate marine fungus in the family ...
    • Lupus nephritis progression in FcγRIIB-/-yaa mice is associated with early development of glomerular electron dense deposits and loss of renal DNase I in severe disease. 

      Horvei, Kjersti Daae; Pedersen, Hege Lynum; Fismen, Silje; Thiyagarajan, Dhivya; Schneider, Andrea; Rekvig, Ole Petter; Winkler, Thomas; Seredkina, Natalya (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-30)
      FcγRIIB<sup>-/-</sup>yaa mice develop severe lupus glomerulonephritis due to lack of an inhibitory immune cell receptor combined with a Y-chromosome linked autoimmune accelerator mutation. In the present study, we have investigated nephritis development and progression in FcγRIIB<sup>-/-</sup>yaa mice to find shared features with NZB/NZW F1 lupus prone mice and human disease. We sacrificed 25 male ...
    • Lupus Nephritis: Enigmas, Conflicting Models and an Emerging Concept 

      Seredkina, Natalya; van der Vlag, Johan; Berden, Jo; Mortensen, Elin Synnøve; Rekvig, Ole Petter (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Autoantibodies to components of chromatin, which include double-stranded DNA (dsDNA), histones and nucleosomes, are central in the pathogenesis of lupus nephritis. How anti-chromatin autoantibodies exert their nephritogenic activity, however, is controversial. One model assumes that autoantibodies initiate inflammation when they cross-react with intrinsic glomerular structures such as components ...
    • Lupus nephritis: low urinary DNase I levels reflect loss of renal DNase I and may be utilized as a biomarker of disease progression 

      Pedersen, Hege Lynum; Horvei, Kjersti Daae; Thiyagarajan, Dhivya; Norby, Gudrun; Seredkina, Natalya; Moroni, Gabriella; Eilertsen, Gro Østli; Holdaas, Hallvard; Strøm, Erik Heyerdahl; Bakland, Gunnstein; Meroni, Pier Luigi; Rekvig, Ole Petter (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-02-21)
      Renal DNase I is lost in advanced stages of lupus nephritis. Here, we determined if loss of renal DNase I reflects a concurrent loss of urinary DNase I, and whether absence of urinary DNase I predicts disease progression. Mouse and human DNase I protein and DNase I endonuclease activity levels were determined by western blot, gel, and radial activity assays at different stages of the murine and human ...
    • Lønnsspiralen i fotballnæringen, en gordisk knute? 

      Bertheussen, Bernt Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Til tross for stadig større inntekter, er mange klubbøkonomier i krise. En viktig årsak til dette er at lønnskostnadene eskalerer. I denne artikkelen drøftes årsaker til lønnspresset i fotballnæringen. Fotballklubber er primært opptatt av sport og ikke av økonomi, men klubbene er avhengige av økonomiske ressurser for å kunne oppnå sportslig suksess. De beste klubbene i Tippeligaen ansetter dyre ...
    • Machine learning-based immune phenotypes correlate with STK11/KEAP1 co-mutations and prognosis in resectable NSCLC: a sub-study of the TNM-I trial 

      Rakaee, Mehrdad; Andersen, S.; Giannikou, K.; Paulsen, Erna-Elise; Kilvær, Thomas Karsten; Rasmussen Busund, Lill-Tove; Berg, Thomas; Richardsen, Elin; Lombardi, Ana Paola; Adib, E.; Pedersen, Mona Irene; Tafavvoghi, Masoud; Wahl, Sissel Gyrid Freim; Petersen, R.H.; Bondgaard, A.L.; Yde, C.W.; Baudet, C.; Licht, P.; Lund-Iversen, Marius; Grønberg, Bjørn Henning; Fjellbirkeland, Lars; Helland, Åslaug; Pøhl, M.; Kwiatkowski, D.J.; Dønnem, Tom (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-04-24)
      Background - We aim to implement an immune cell score model in routine clinical practice for resected non-small-cell lung cancer (NSCLC) patients (NCT03299478). Molecular and genomic features associated with immune phenotypes in NSCLC have not been explored in detail.<p> <p>Patients and methods - We developed a machine learning (ML)-based model to classify tumors into one of three categories: ...