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    • Identifying predictive signalling networks for Vedolizumab response in ulcerative colitis. 

      Singh, A.; Fenton, Christopher Graham; Anderssen, Endre; Paulssen, Ruth H (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-11)
      Background - In ulcerative colitis (UC), the molecular mechanisms that drive disease development and patient response to therapy are not well understood. A significant proportion of patients with UC fail to respond adequately to biologic therapy. Therefore, there is an unmet need for biomarkers that can predict patients’ responsiveness to the available UC therapies as well as ascertain the most ...
    • Identifying sequence variants contributing to hereditary breast and ovarian cancer in BRCA1 and BRCA2 negative breast and ovarian cancer patients 

      Jarhelle, Elisabeth; Stensland, Hilde Monica Frostad Riise; Hansen, Geir Åsmund Myge; Skarsfjord, Siri; Jonsrud, Christoffer; Ingebrigtsen, Monica; Strømsvik, Nina; Van Ghelue, Marijke (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-27)
      Families with breast and ovarian cancer are often tested for disease associated sequence variants in <i>BRCA1</i> and <i>BRCA2</i>. Pathogenic sequence variants (PVs) in these two genes are known to increase breast and ovarian cancer risks in females. However, in most families no PVs are detected in these two genes. Currently, several studies have identified other genes involved in hereditary breast ...
    • IgE-mediated peanut allergy: Current and novel predictive biomarkers for clinical phenotypes using multi-omics approaches 

      Czolk, Rebecca; Klueber, Julia; Sørensen, Martin; Wilmes, Paul; Codreanu-Morel, Françoise; Skov, Per Stahl; Hilger, Christiane; Bindslev-Jensen, Carsten; Ollert, Markus; Kuehn, Annette (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-01-28)
      Food allergy is a collective term for several immune-mediated responses to food. IgE-mediated food allergy is the best-known subtype. The patients present with a marked diversity of clinical profiles including symptomatic manifestations, threshold reactivity and reaction kinetics. In-vitro predictors of these clinical phenotypes are evasive and considered as knowledge gaps in food allergy diagnosis ...
    • IL-6 receptor inhibition by tocilizumab attenuated expression of C5a receptor 1 and 2 in non-ST-elevation myocardial infarction 

      Orrem, Hilde Lang; Nilsson, Per; Pischke, Søren Erik; Kleveland, Ola; Yndestad, Arne; Ekholt, Karin; Damås, Jan Kristian; Espevik, Terje; Bendz, Bjørn; Halvorsen, Bente; Gregersen, Ida; Wiseth, Rune; Andersen, Geir Øystein; Ueland, Thor; Gullestad, Lars; Aukrust, Pål; Barratt-Due, Andreas; Mollnes, Tom Eirik (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-12)
      <p><i>Background</i>: Elevated interleukin-6 (IL-6) and complement activation are associated with detrimental effects of inflammation in coronary artery disease (CAD). The complement anaphylatoxins C5a and C3a interact with their receptors; the highly inflammatory C5aR1, and the C5aR2 and C3aR. We evaluated the effect of the IL-6 receptor (IL-6R)-antagonist tocilizumab on the expression of the ...
    • Immediate response in markers of inflammation and angiogenesis during exercise: a randomised cross-over study in heart transplant recipients 

      Yardley, Marianne; Ueland, Thor; Aukrust, Pål; Michelsen, Annika; Bjørkelund, Elisabeth; Gullestad, Lars; Nytrøen, Kari (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-28)
      <p><i>Background</i>: The present study explored and compared the immediate responses in markers of inflammation and angiogenesis in maintenance heart transplant (HTx) recipients before, during and after sessions of high-intensity interval training (HIT) versus moderate-intensity continuous training (MICT). The study aimed to explain some of the trigger mechanisms behind HIT in HTx recipients.</p> ...
    • Immunobiology of cancer-associated fibroblasts in the context of radiotherapy 

      Hellevik, Turid; Berzaghi, Rodrigo; Lode, Kristin; Islam, Md Ashraful; Martinez, Inigo Zubiavrre (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-18)
      Radiotherapy (RT) still represents a mainstay of treatment in clinical oncology. Traditionally, the effectiveness of radiotherapy has been attributed to the killing potential of ionizing radiation (IR) over malignant cells, however, it has become clear that therapeutic efficacy of RT also involves activation of innate and adaptive anti-tumor immune responses. Therapeutic irradiation of the tumor ...
    • The immunogenicity and safety of Group B Streptococcal maternal vaccines: A systematic review 

      Bjerkhaug, Aline Uhirwa; Ramalingham, Shouwmika; Mboizi, Robert; Le Doare, Kirsty; Klingenberg, Claus (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-12-09)
      Purpose: To systematically review immunogenicity and safety data of maternal group B streptococcal (GBS) vaccines in published clinical trials until July 2023.<p> <p>Methods: EMBASE, MEDLINE, Cochrane Library and clinicaltrial.gov. databases were searched for clinical studies that reported immunogenicity and/or safety of GBS vaccine in non-pregnant adults, pregnant women and infants between 1st ...
    • Impact of a Vancomycin-Induced Shift of the Gut Microbiome in a Gram-Negative Direction on Plasma Factor VIII:C Levels: Results from a Randomized Controlled Trial 

      Grimnes, Gro; Bhoelan, Soerajja; Hindberg, Kristian; Davids, Mark; Nieuwdorp, Max; Mollnes, Tom E.; Michelsen, Annika Elisabet; Ueland, Thor; Brækkan, Sigrid K.; Hansen, John-Bjarne; Tichelaar, Ynse Ieuwe Gerardus Vladimir (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-24)
      Rationale - Inflammation is present in several conditions associated with risk of venous thromboembolism. The gut microbiome might be a source of systemic inflammation and activation of coagulation, by translocation of lipopolysaccharides from gram-negative bacteria to the systemic circulation.<p> <p>Objective - To investigate whether a vancomycin-induced shift of the gut microbiome in a gram-negative ...
    • Impact of Chronic Inflammation, Assessed by hs-CRP, on the Association between Red Cell Distribution Width and Arterial Cardiovascular Disease: The Tromsø Study 

      Lappegård, Jostein; Ellingsen, Trygve; Hindberg, Kristian; Mathiesen, Ellisiv B.; Njølstad, Inger; Wilsgaard, Tom; Løchen, Maja-Lisa; Brækkan, Sigrid Kufaas; Hansen, John-Bjarne (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-10)
      Red cell distribution width (RDW), a measure of variability in size of circulating erythrocytes, is associated with arterial cardiovascular disease (CVD), but the underlying mechanism remains unclear. We aimed to investigate the impact of chronic inflammation as measured by high sensitivity CRP (hs-CRP) on this relationship, and explore whether RDW could be a mediator in the causal pathway between ...
    • The Impact of Cytokines on the Health-Related Quality of Life in Patients with Systemic Lupus Erythematosus 

      Raymond, Warren David; Eilertsen, Gro Østli; Shanmugakumar, Sharanyaa; Nossent, Johannes (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-15)
      <i>Introduction</i>: Systemic lupus erythematosus (SLE) reduces the health-related quality of life (HRQoL), even during periods of disease quiescence. We investigated whether subclinical inflammation as reflected by cytokine levels is linked with reduced HRQoL. Methods: A cross-sectional study of SLE patients (<i>n</i> = 52, mean age 47.3, 86.5% female) who completed a Short Form Health Survey-36 ...
    • The impact of gender, puberty, and pregnancy in patients with POLG disease 

      Hikmat, Omar; Naess, Karin; Engvall, Martin; Klingenberg, Claus; Rasmussen, Magnhild; Tallaksen, Chantal; Samsonsen, Christian; Brodtkorb, Eylert; Ostergaard, Elsebet; de Coo, Rene; Pias-Peleteiro, Leticia; Isohanni, Pirjo; Uusimaa, Johanna; Darin, Niklas; Rahman, Shamima; Bindoff, Laurence (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-18)
      <i>Objective</i> - To study the impact of gender, puberty, and pregnancy on the expression of POLG disease, one of the most common mitochondrial diseases known.<p> <p><i>Methods</i> - Clinical, laboratory, and genetic data were collected retrospectively from 155 patients with genetically confirmed POLG disease recruited from seven European countries. We used the available data to study the impact ...
    • Impact of helicopter emergency medical services in major incidents: systematic literature review 

      Johnsen, Anne Siri; Fattah, Sabina; Sollid, Stephen; Rehn, Marius (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Introduction: Helicopter emergency medical services (HEMS) aim to bring highly specialised crews to the major incident for triage, treatment and transport. When the site is difficult to access, HEMS may be the only mode of transportation of both personnel and patients. This systematic review will identify, describe and appraise literature regarding the role of HEMS in medical response to major ...
    • Impact of hidradenitis suppurativa on work loss, indirect costs and income 

      Tzellos, Thrasyvoulos; Yang, H; Mu, F; Calimlim, B; Signorovitch, J (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-18)
      Background Hidradenitis suppurativa (HS), a chronic cutaneous disease, can negatively affect work life. Objectives This retrospective cohort study evaluates the indirect burden among employed patients with HS in the U.S.A.<p> <p>Methods Newly diagnosed and general patients with HS, who were employees (age 18–64 years) from a large claims database (Q1 1999 to Q1 2015), were matched 1 : 5 to ...
    • Impact of Illness on Electronic Health Use (The Seventh Tromsø Study - Part 2): Population-Based Questionnaire Study 

      Ruiz, Luis Marco; Wynn, Rolf; Oyeyemi, Sunday Oluwafemi; Budrionis, Andrius; Yigzaw, Kassaye Yitbarek; Bellika, Johan Gustav (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-05)
      <p><i>Background:</i> Patients who suffer from different diseases may use different electronic health (eHealth) resources. Thus, those who plan eHealth interventions should take into account which eHealth resources are used most frequently by patients that suffer from different diseases. <p><i>Objective:</i> The aim of this study was to understand the associations between different groups of chronic ...
    • The impact of implementing patient-reported measures in routine maternity care: a systematic review 

      Chen, An; Väyrynen, Kirsi; Schmidt, Alexandra; Leskelä, Riikka-Leena; Torkki, Paulus; Heinonen, Seppo; Tekay, Aydin; Acharya, Ganesh (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-05)
      Introduction While there is growing interest in applying patient-reported measures (PRMs) in clinical routine, limited collective evidence of the impact of PRMs hinder their widespread use in specific contexts, such as maternity care. Our objective was to synthesize existing emperical evidence on the impact of implementing PRMs in routine maternity care. Material and methods We followed the ...
    • Impact of incident myocardial infarction on the risk of venous thromboembolism: the Tromsø Study 

      Balteskard Rinde, Ludvig; Lind, Caroline; Småbrekke, Birgit; Njølstad, Inger; Mathiesen, Ellisiv B.; Wilsgaard, Tom; Løchen, Maja-Lisa; Mathiesen Hald, Erin; Vik, Anders; Brækkan, Sigrid Kufaas; Hansen, John-Bjarne; Rinde, Ludvig Balteskard (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-05-10)
      Background: Recent studies have demonstrated an association between venous thromboembolism (VTE) and arterial thrombotic diseases. <p> Objectives: We aimed to study the association between incident myocardial infarction (MI) and VTE in a prospective population-based cohort. <p> Methods: Study participants (n=29 506) were recruited from three surveys of the Tromsø Study (conducted in 1994-95, 2001-02 ...
    • Impact of incident venous thromboembolism on risk of arterial thrombotic diseases 

      Lind, Caroline; Flinterman, Linda E.; Enga, Kristin; Severinsen, Marianne T; Kristensen, Søren R; Brækkan, Sigrid Kufaas; Mathiesen, Ellisiv B.; Njølstad, Inger; Cannegieter, Suzanne C.; Overvad, Kim; Hansen, John-Bjarne (Journal article; Tidsskriftartikkel; Peer reviewed, 2013-11-22)
      BACKGROUND: Growing evidence supports an association between venous thromboembolism (VTE) and arterial thrombotic diseases (ie, myocardial infarction and ischemic stroke). We aimed to study the association between VTE and future arterial events and to determine the population attributable risk of arterial events by VTE in a large prospective cohort recruited from the general population. METHODS AND ...
    • Impact of liver fibrosis and clinical characteristics on dose-adjusted serum methadone concentrations 

      Chalabianloo, Fatemeh; Høiseth, Gudrun; Vold, Jørn Henrik; Johansson, Kjell Arne; Kringen, Marianne K.; Dalgard, Olav; Ohldieck, Christian; Druckrey-Fiskaaen, Karl Trygve; Aas, Christer Frode; Løberg, Else-Marie; Bramness, Jørgen Gustav; Fadnes, Lars T. (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-31)
      Background: There is limited knowledge on the causes of large variations in serum methadone concentrations and dose requirements. Objectives: We investigated the impact of the degree of liver fibrosis on dose-adjusted steady-state serum methadone concentrations.<p> <p<Methods: We assessed the clinical and laboratory data of 155 Norwegian patients with opioid use disorder undergoing methadone ...
    • Impact of microvessel patterns and immune status in NSCLC: a non-angiogenic vasculature is an independent negative prognostic factor in lung adenocarcinoma 

      Paulsen, Erna-Elise; Andersen, Sigve; Rakaee, Mehrdad; Pedersen, Mona Irene; Lombardi, Ana Paola; Pøhl, Mette; Kilvær, Thomas Karsten; Rasmussen Busund, Lill-Tove; Pezzella, Francesco; Dønnem, Tom (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-04-26)
      Introduction: Non-small cell lung carcinomas (NSCLC) exhibit different microvessel patterns (MVPs). Basal (BA), diffuse (DA) and papillary (PA) patterns show signs of angiogenesis (new blood vessels), while an alveolar pattern indicates that tumors are co-opting existing normal vessels (non-angiogenic alveolar, NAA). NAA tumor growth is known to exist in NSCLC, but little is known about its prognostic ...
    • Impact of multi-professional, scenario-based training on postpartum hemorrhage in Tanzania: A quasi-experimental, pre- vs. post-intervention study 

      Egenberg, Signe; Masenga, Gileard; Bru, Lars Edvin; Eggebø, Torbjørn Moe; Mushi, Cecilia; Massay, Deodatus Amadeus; Øian, Pål (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-09-05)
      Background: <br> Tanzania has a relatively high maternal mortality ratio of 410 per 100,000 live births. Severe postpartum hemorrhage (PPH) is a major cause of maternal deaths, but in most cases, it is preventable. However, most pregnant women that develop PPH, have no known risk factors. Therefore, preventive measures must be offered to all pregnant women. This study investigated the effects ...