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    • Investigation of background contribution from different solvent brands used for sample preparation and analysis of persistent organic pollutants 

      Götsch, Arntraut; Averina, Maria; Brox, Jan; Huber, Sandra (Journal article; Tidsskriftartikkel; Peer reviewed, 2023)
      In the times of pandemic, we experienced problems with supply bottlenecks for the solvents normally used for extraction and analysis of persistent organic pollutants (POPs; i.e. PCBs, PBDEs and organochlorine pesticides) in our laboratory and, considered to start using solvents from another producer alternatively. Since we analyze POPs at very low concentration levels and other consumables are ...
    • Involuntary admission in Norwegian adult psychiatric hospitals: A systematic review 

      Wynn, Rolf (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-22)
      Background: It is an important objective of the psychiatric services to keep the use of involuntary procedures to a minimum, as the use of coercion involves clinical, ethical, and legal issues. It has been claimed that Norway has a relatively high rate of involuntary admissions. We reviewed the peer-reviewed literature on the use of involuntary admission in Norway, with the purpose of identifying ...
    • Involuntary psychiatric admission: how the patients are detected and the general practitioners' expectations for hospitalization. An interview-based study 

      Røtvold, Ketil; Wynn, Rolf (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-03-08)
      <p>Background: In Norway, it is usually GPs that refer patients to involuntary admission. A high proportion of such referrals come from out-of-hours clinics. Little is known about who first initiate the contact between the patients and the referring doctors and which expectations the referring doctors have with respect to the involuntary admissions. The aim of the study was to examine who first ...
    • Iohexol plasma clearance for measuring glomerular filtration rate in clinical practice and research: a review. Part 2: Why to measure glomerular filtration rate with iohexol? 

      Delanaye, Pierre; Melsom, Toralf; Ebert, Natalie; Bäck, Sten-Erik; Mariat, Christophe; Cavalier, Etienne; Björk, Jonas; Christensson, Anders; Nyman, Ulf; Porrini, Esteban; Remuzzi, Giuseppe; Ruggenenti, Piero; Schaeffner, Elke; Soveri, Inga; Sterner, Gunnar; Eriksen, Bjørn Odvar; Gasperi, Flavia (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-09-09)
      A reliable assessment of glomerular filtration rate (GFR) is of paramount importance in clinical practice as well as epidemiological and clinical research settings. It is recommended by Kidney Disease: Improving Global Outcomes guidelines in specific populations (anorectic, cirrhotic, obese, renal and non-renal transplant patients) where estimation equations are unreliable. Measured GFR is the ...
    • Iohexol plasma clearance for measuring glomerular filtration rate in clinical practice and research: a review. Part 1: How to measure glomerular filtration rate with iohexol? 

      Delanaye, Pierre; Ebert, Natalie; Melsom, Toralf; Gasperi, Flavia; Mariat, Christophe; Cavalier, Etienne; Björk, Jonas; Christensson, Anders; Nyman, Ulf; Porrini, Esteban; Remuzzi, Giuseppe; Ruggenenti, Piero; Schaeffner, Elke; Soveri, Inga; Sterner, Gunnar; Eriksen, Bjørn Odvar; Bäck, Sten-Erik (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-08-23)
      While there is general agreement on the necessity tomeasure glomerular filtration rate (GFR) inmany clinical situations, there is less agreement on the bestmethod to achieve this purpose.As the gold standardmethod for GFR determination, urinary (or renal) clearance of inulin, fades into the background due to inconvenience and high cost, a diversity of filtrationmarkers and protocols compete to ...
    • Iohexol Plasma Clearance: Impact of Weighing the Syringe 

      Delanaye, Pierre; Melsom, Toralf; Cavalier, Etienne; Pottel, Hans; Eriksen, Bjørn Odvar; Dubourg, Laurence (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-05)
      Measured glomerular filtration rate (mGFR) measurement is necessary in specific patients and/or specific clinical contexts.1–3 Plasma clearances are the preferred methods, as they are less costly and cumbersome than urinary clearances.4 The contrast medium iohexol is the most commonly used worldwide, partly for pragmatic reasons, as this marker is stable, not radioactive, and its measurement ...
    • Ionizing radiation curtails immunosuppressive effects from cancer-associated fibroblasts on dendritic cells 

      Berzaghi, Rodrigo; Tornaas, Stian; Lode, Kristin; Hellevik, Turid; Martinez, Inigo Zubiavrre (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-09)
      Cancer-associated fibroblasts (CAFs) participate actively in tumor development and affect treatment responses, by among other mechanisms, promoting an immunosuppressive tumor microenvironment. In contrast to normal fibroblasts, reactive CAFs secrete a myriad of immunomodulatory soluble factors at high levels, i.e. growth factors, cytokines, and chemokines, which directly influence tumor immunity and ...
    • IP-10 differentiates between active and latent tuberculosis irrespective of HIV status and declines during therapy 

      Wergeland, Ida; Pullar, Nadine Durema; Assmus, Jörg; Ueland, Thor; Tonby, Kristian; Feruglio, Siri; Kvale, Dag; Damås, Jan Kristian; Aukrust, Pål; Mollnes, Tom Eirik; Dyrhol-Riise, Anne Ma (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-01-15)
      Objectives: Biomarkers for diagnosis and therapy efficacy in tuberculosis (TB) are requested. We have studied biomarkers that may differentiate between active and latent TB infection (LTBI), the influence of HIV infection and changes during anti-TB chemotherapy. Methods: Thirty-eight plasma cytokines, assessed by multiplex and enzyme immunoassays, were analyzed in patients with active TB before ...
    • Is the presence of foraminal stenosis associated with outcome in lumbar spinal stenosis patients treated with posterior microsurgical decompression 

      Aaen, Jørn Ståle; BANITALEBI, HASAN; Austevoll, Ivar Magne; Hellum, Christian; Storheim, Kjersti; Myklebust, Tor Åge; Anvar, Masoud D; Weber, Clemens; Solberg, Tore; Grundnes, Oliver; Brisby, Helena; Indrekvam, Kari; Hermansen, Erland (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-07-05)
      Background We aim to investigate associations between preoperative radiological findings of lumbar foraminal stenosis with clinical outcomes after posterior microsurgical decompression in patients with predominantly central lumbar spinal stenosis (LSS).<p> <p>Methods The study was an additional analysis in the NORDSTEN Spinal Stenosis Trial. In total, 230 men and 207 women (mean age 66.8 (SD ...
    • Is there a negative impact of winter on mental distress and sleeping problems in the sub-arctic? 

      Johnsen, May Trude; Wynn, Rolf; Bratlid, trond (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
    • Is there a seasonal variation of survival after systemic chemotherapy for metastatic castration-resistant prostate cancer in a rural part of North Norway? 

      Nieder, Carsten; Dalhaug, Astrid; Haukland, Ellinor Christin (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-19)
      The winter darkness or polar night induces endocrine and metabolic mechanisms, which might reduce the efficacy of cancer treatment and thus contribute to shorter survival. Moreover, season-and weather-related treatment delays and irregularities might also cause reduced efficacy of anti-cancer drugs. Therefore, this study evaluated the prognostic impact of timing of chemotherapy (start during winter ...
    • Is there a weekly pattern for health information searching and is the pattern unique to health topics? 

      Gabarron, Elia; Lau, Annie YS; Wynn, Rolf (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-12)
      Background: Online health information–seeking behaviors have been reported to be more common at the beginning of the workweek. This behavior pattern has been interpreted as a kind of “healthy new start” or “fresh start” due to regrets or attempts to compensate for unhealthy behavior or poor choices made during the weekend. However, the observations regarding the most common health information–seeking ...
    • Ischemic Stroke and Risk of Venous Thromboembolism in the General Population: The Tromsø Study 

      Balteskard Rinde, Ludvig; Småbrekke, Birgit; Mathiesen, Ellisiv B.; Løchen, Maja-Lisa; Njølstad, Inger; Mathiesen Hald, Erin; Wilsgaard, Tom; Brækkan, Sigrid Kufaas; Hansen, John-Bjarne (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-11-07)
      <i>Background</i> - Even though clinical data support a relation between ischemic stroke and venous thromboembolism (VTE), the strength and time dependence of the association remain to be settled at the population level. We therefore aimed to investigate the association between ischemic stroke and VTE in a prospective population-based cohort.<p> <p><i>Methods and Results</i> - Participants (n=30 ...
    • Isoflurane increases tolerance to renal ischemia reperfusion injury compared to propofol: An experimental study in pigs 

      Roaldsen, Marius Håke; Ciosek, Timothy Allan; Richardsen, Elin; Al-Saad, Samer; Patel, Hitendra R.H.; Aarsæther, Erling Johan (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-09)
      <i>Purpose</i>: To compare two clinically relevant anesthetic agents, i.e., isoflurane versus propofol with respect to protection of the kidney in a porcine renal ischemia reperfusion model. <p> <p><i>Materials and Methods</i>: 14 hybrid pigs were randomized to anesthesia with either isoflurane or propofol prior to laparoscopic surgery. Following anesthesia, the left kidney hilum was clamped for ...
    • ISUOG Practice Guidelines (updated): use of Doppler velocimetry in obstetrics 

      Bhide, Amarnath; Acharya, Ganesh; Baschat, Ahmet Alexander; Bilardo, Caterina Maddalena; Brezinka, Christoph; Cafici, Daniel; Ebbing, Cathrine; Hernandez-Andrade, Edgar A.; Kalache, Karim; Kingdom, John; Kiserud, Torvid; Surendran, Sailesh Kumar; Lee, Wesley; Lees, Christoph; Leung, Kwok Yin; Malinger, Gustavo; Mari, Giancarlo; Prefumo, Federico; Sepulveda, Waldo; Trudinger, Brian (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-19)
      The International Society of Ultrasound in Obstetrics and Gynecology (ISUOG) is a scientific organization that encourages sound clinical practice, teaching and research related to diagnostic imaging in women's healthcare. The ISUOG Clinical Standards Committee (CSC) has a remit to develop Practice Guidelines and Consensus Statements as educational recommendations that provide healthcare practitioners ...
    • “It was an important part of my treatment”: a qualitative study of Norwegian breast Cancer patients’ experiences with mainstreamed genetic testing 

      Strømsvik, Nina; Olsson, Pernilla Marie A.; Gravdehaug, Berit; Lurås, Hilde; Schlichting, Ellen; Jørgensen, Kjersti; Wangensteen, Teresia; Vamre, Tone; Heramb, Cecilie; Mæhle, Lovise Olaug; Grindedal, Eli Marie (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-05)
      Background - In South-Eastern Norway, genetic testing for BRCA1 and BRCA2 is offered to breast cancer patients by their treating surgeon or oncologist. Genetic counselling from a geneticist or a genetic counsellor is offered only to those who test positive for a pathogenic variant or have a family history of cancer. This practice is termed “mainstreamed genetic testing”. The aim of this study was ...
    • Joint Effect of Multiple Prothrombotic Genotypes and Mean Platelet Volume on the Risk of Incident Venous Thromboembolism 

      Jakobsen, Lisa; Frischmuth, Tobias; Brækkan, Sigrid Kufaas; Hansen, John Bjarne; Morelli, Vania Maris (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-31)
      Background - A high mean platelet volume (MPV), a marker of increased platelet reactivity, is a risk factor for venous thromboembolism (VTE). Whether established prothrombotic single nucleotide polymorphisms (SNPs) further increase the VTE risk in subjects with high MPV because of biological interaction remains unknown.<p> <p>Aim - To investigate the joint effect of high MPV and prothrombotic ...
    • Joint Effect of Multiple Prothrombotic Genotypes and Obesity on the Risk of Incident Venous Thromboembolism 

      Frischmuth, Tobias; Hindberg, Kristian; Gabrielsen, Maiken Elvestad; Brumpton, Ben Michael; Hveem, Kristian; Brækkan, Sigrid Kufaas; Hansen, John-Bjarne; Morelli, Vania Maris (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-03)
      <p><b>Background</b> The impact of the combination of obesity and multiple prothrombotic genotypes on venous thromboembolism (VTE) risk remains unclear. <p><b>Objective</b> To investigate the joint effect of obesity and a genetic risk score (GRS) composed of established prothrombotic single nucleotide polymorphisms (SNPs) on VTE risk using a population-based case–cohort. <p><b>Methods</b> Cases ...
    • Joint effect of myocardial infarction and obesity on the risk of venous thromboembolism: The Tromsø Study 

      Sejrup, Joakim Knutsen; Tøndel, Birgitte Gladsø; Morelli, Vania Maris; Løchen, Maja-Lisa; Njølstad, Inger; Mathiesen, Ellisiv B.; Wilsgaard, Tom; Hansen, John Bjarne; Brækkan, Sigrid Kufaas (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-19)
      Background: Myocardial infarction (MI) is associated with an increased risk of venous thromboembolism (VTE). Obesity is a recognized risk factor for both MI and VTE. Whether obesity further increases the risk of VTE in MI patients is scarcely investigated.<p> <p>Aim: To study the joint effect of MI and obesity on the risk of VTE. <p>Methods: Study participants (n = 29 410) were recruited from ...
    • Joint effects of cancer and variants in the factor 5 gene on the risk of venous thromboembolism 

      Gran, Olga Vikhammer; Smith, Erin N.; Brækkan, Sigrid Kufaas; Jensvoll, Hilde; Solomon, Terry; Hindberg, Kristian; Wilsgaard, Tom; Rosendaal, Frits Richard; Frazer, Kelly A.; Hansen, John-Bjarne (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-09)
      Venous thromboembolism occurs frequently in cancer patients. Two variants in the factor 5 gene (F5), rs6025 encoding for the factor V Leiden mutation R506Q, and rs4524 encoding K858R, have been found to be associated with venous thromboembolism. We assessed the joint effect of active cancer and these two F5 variants on venous thromboembolism risk in a case-cohort study. Cases with a first venous ...