• Elevated plasma D-dimer levels are associated with risk of future incident venous thromboembolism 

      Hansen, Ellen-Sofie; Rinde, Fridtjof Balteskard; Edvardsen, Magnus; Hindberg, Kristian; Latysheva, Nadezhda; Aukrust, Pål; Ueland, Thor; Michelsen, Annika Elisabet; Hansen, John Bjarne; Brækkan, Sigrid Kufaas; Morelli, Vania Maris (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-25)
      <p><i>Background</i> D-dimer, a global biomarker for activation of the coagulation and fibrinolysis systems, is useful in assessing individual risk of venous thromboembolism (VTE) recurrence. However, there is limited information on the association between D-dimer and risk of a first lifetime VTE event. <p><i>Objectives</i> To investigate the association between plasma D-dimer levels and risk of ...
    • Encephalitis and aseptic meningitis: short-term and long-term outcome, quality of life and neuropsychological functioning 

      Paulsen, Else Quist; Ormaasen, Vidar; Kran, Anne-Marte Bakken; Dunlop, Oona Borghild; Ueland, Per Magne; Ueland, Thor; Eikeland, Randi; Aukrust, Pål; Nordenmark, Tonje Haug (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-11-06)
      For those surviving encephalitis, the influence on daily life of patients and their relatives may be substantial. In contrast, the prognosis after aseptic meningitis (ASM) is considered good. In this prospective study in patients with encephalitis (n = 20) and ASM (n = 46), we show that both groups experienced reduced Health Related Quality of Life (HRQoL) at two months after discharge, and that ...
    • Exploring the Wnt signaling pathway in schizophrenia and bipolar disorder 

      Hoseth, Eva Zsuzsanna; Krull, Florian; Dieset, Ingrid; Mørch, Ragni Helene; Hope, Sigrun; Gardsjord, Erlend Strand; Steen, Nils Eiel; Melle, Ingrid; Brattbakk, Hans-Richard; Steen, Vidar Martin; Aukrust, Pål; Djurovic, Srdjan; Andreassen, Ole Andreas; Ueland, Thor (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-06)
      The Wnt signaling pathway plays a crucial role in neurodevelopment and in regulating the function and structure of the adult nervous system. Schizophrenia (SCZ) and bipolar disorder (BD) are severe mental disorders with evidence of subtle neurodevelopmental, structural and functional neuronal abnormalities. We aimed to elucidate the role of aberrant regulation of the Wnt system in these disorders ...
    • Gut microbiota composition during hospitalization is associated with 60-day mortality after severe COVID-19 

      Trøseid, Marius; Holter, Jan Cato; Holm, Kristian; Vestad, Beate; Sazonova, Taisiia; Granerud, Beathe Kiland; Dyrhol-Riise, Anne Ma; Holten, Aleksander Rygh; Tonby, Kristian; Kildal, Anders Benjamin; Heggelund, Lars; Tveita, Anders Aune; Bøe, Simen; Müller, Karl Erik; Jenum, Synne; Hov, Johannes Espolin Roksund; Ueland, Thor (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-23)
      Background - Gut microbiota alterations have been reported in hospitalized COVID-19 patients, with reduced alpha diversity and altered microbiota composition related to respiratory failure. However, data regarding gut microbiota and mortality are scarce.<p> <p>Methods - Rectal swabs for gut microbiota analyses were collected within 48 h after hospital admission (baseline; n = 123) and three-month ...
    • High plasma levels of C1-inhibitor are associated with lower risk of future venous thromboembolism 

      Grover, Steven P.; Snir, Omri; Hindberg, Kristian Dalsbø; Englebert, Tatianna M.; Brækkan, Sigrid Kufaas; Morelli, Vania Maris; Jensen, Søren Beck; Wolberg, Alisa S.; Mollnes, Tom Eirik; Ueland, Thor; Mackman, Nigel; Hansen, John Bjarne (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-31)
      Background - C1-inhibitor (C1INH) is a broad-acting serine protease inhibitor with anticoagulant activity. The impact of C1INH plasma levels within the normal physiological range on risk of venous thromboembolism (VTE) is unknown. We assessed the association of plasma C1INH levels and VTE risk and evaluated the impact of C1INH on thrombin and plasmin generation in ex vivo assays.<p> <p>Methods - ...
    • 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> ...
    • 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 the von Willebrand factor-ADAMTS-13 axis on the risk of future venous thromboembolism 

      Edvardsen, Magnus; Hansen, Ellen-Sofie; Ueland, Thor; Aukrust, Pål; Brækkan, Sigrid Kufaas; Morelli, Vania Maris; Hansen, John Bjarne (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-01)
      Background - von Willebrand factor (VWF) and its cleaving protease, ADAMTS-13, form a pivotal axis that regulates hemostasis. However, the role of the VWF-ADAMTS-13 axis in the risk of future venous thromboembolism (VTE) is unknown.<p> <p>Objectives - To investigate whether plasma ADAMTS-13 levels and an imbalance with VWF levels, assessed as the VWF/ADAMTS-13 ratio, are associated with the risk ...
    • Increased secondary/primary bile acid ratio in chronic heart failure 

      Mayerhofer, Christiane Caroline; Ueland, Thor; Broch, Kaspar; Vincent, Royce P.; Cross, Gemma F.; Dahl, Christen Peder; Aukrust, Pål; Gullestad, Lars; Hov, Johannes Espolin Roksund; Trøseid, Marius (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-09-09)
      <p><i>Objective</i> Bile acids (BAs) are now recognized as signaling molecules and emerging evidence suggests that BAs affect cardiovascular function. The gut microbiota has recently been linked to the severity of heart failure (HF), and microbial metabolism has a major impact on BA homeostasis. We aimed to investigate the pattern of BAs, and particularly microbiota-transformed (secondary) BAs, in ...
    • Increased Systemic and Local Interleukin 9 Levels in Patients with Carotid and Coronary Atherosclerosis 

      Gregersen, Ida; Skjelland, Mona; Holm, Sverre; Holven, Kirsten Bjørklund; Sørensen, Kirsten; Russell, David; Askevold, Erik Tandberg; Dahl, Christen Peder; Ørn, Stein; Gullestad, Lars; Mollnes, Tom Eirik; Ueland, Thor; Aukrust, Pål; Halvorsen, Bente (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Objective: Atherosclerosis is a chronic inflammatory disorder that involves a range of inflammatory mediators. Although interleukin (IL)-9 has been related to inflammation, there are at present no data on its role in atherosclerosis. Here we have examined IL-9 and IL-9 receptor (IL-9R) systemically and locally in patients with coronary and carotid atherosclerosis. Methods: Plasma IL-9 was quantified ...
    • Inflammation and cognition in severe mental illness: patterns of covariation and subgroups 

      Sæther, Linn Sofie; Ueland, Thor; Haatveit, Beathe; Maglanoc, Luigi; Szabo, Attila; Djurovic, Srdjan; Aukrust, Pål; Roelfs, Daniël; Ormerod, Monica Bettina E. Greenwood; Lagerberg, Trine Vik; Steen, Nils Eiel; Melle, Ingrid; Andreassen, Ole; Ueland, Torill; Mohn, Christine (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-28)
      A potential relationship between dysregulation of immune/inflammatory pathways and cognitive impairment has been suggested in severe mental illnesses (SMI), such as schizophrenia (SZ) and bipolar (BD) spectrum disorders. However, multivariate relationships between peripheral inflammatory/immune-related markers and cognitive domains are unclear, and many studies do not account for inter-individual ...
    • Interleukin-6 receptor inhibition with tocilizumab induces a selective and substantial increase in plasma IP-10 and MIP-1β in non-ST-elevation myocardial infarction 

      Kleveland, Ola; Ueland, Thor; Kunszt, Gabor; Bratlie, Marte; Yndestad, Arne; Broch, Kaspar; Holte, Espen; Ryan, Liv; Amundsen, Brage H.; Bendz, Bjørn; Aakhus, Svend; Espevik, Terje; Halvorsen, Bente; Mollnes, Tom Eirik; Wiseth, Rune; Gullestad, Lars; Aukrust, Pål; Damås, Jan Kristian (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-06-29)
      <p><i>Aim</i>: To evaluate the effect of interleukin-6 inhibition with tocilizumab on the cytokine network in patients with acute non-ST-elevation myocardial infarction (NSTEMI).</p> <p><i>Methods</i>: 117 patients with acute NSTEMI were randomised to an intravenous infusion of 280 mg tocilizumab or placebo prior to coronary angiography. Blood samples were obtained at baseline, at 6 consecutive ...
    • 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 ...
    • Leptin and adiponectin as predictors of cardiovascular risk after gestational diabetes mellitus 

      Lekva, Tove; Michelsen, Annika E.; Aukrust, Pål; Henriksen, Tore; Jens, Bollerslev; Ueland, Thor (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-01-10)
      Background: Gestational diabetes mellitus (GDM) is a significant risk factor for cardiovascular disease (CVD) in later life, but the mechanism remains unclear. Adipokine imbalance in the presence of metabolic dysfunction may be a key event in promoting CVD. The aim of the study was to examine the relationships between GDM, cardiovascular risk, and plasma adiponectin, leptin and the leptin/adiponectin ...
    • LIGHT/TNFSF14 is increased in patients with type 2 diabetes mellitus and promotes islet cell dysfunction and endothelial cell inflammation in vitro 

      Halvorsen, Bente; Santilli, Francesca; Scholz, Hanne; Sahraoui, Afaf; Gulseth, Hanne Løvdal; Wium, Cecilie; Lattanzio, Stefano; Formoso, Gloria; Di Fulvio, Patrizia; Otterdal, Kari; Retterstøl, Kjetil; Holven, Kirsten Bjørklund; Gregersen, Ida; Stavik, Benedicte; Bjerkeli, Vigdis; Michelsen, Annika; Ueland, Thor; Liani, Rossella; Davi, Giovanni; Aukrust, Pål (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-07-15)
      Aims/hypothesis: Activation of inflammatory pathways is involved in the pathogenesis of type 2 diabetes mellitus. On the basis of its role in vascular inflammation and in metabolic disorders, we hypothesised that the TNF superfamily (TNFSF) member 14 (LIGHT/TNFSF14) could be involved in the pathogenesis of type 2 diabetes mellitus. <p>Methods: Plasma levels of LIGHT were measured in two cohorts of ...
    • Low levels of immunoglobulins and mannose-binding lectin are not associated with etiology, severity, or outcome in community-acquired pneumonia 

      Siljan, William Ward; Nymo, Ståle Haugset; Husebye, Einar; Ueland, Thor; Skattum, Lillemor; Bosnes, Vidar; Garred, Peter; Frøland, Stig Sophus; Mollnes, Tom Eirik; Aukrust, Pål; Heggelund, Lars (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-01-05)
      <p><i>Background - </i>Disease severity and outcome in community-acquired pneumonia (CAP) depend on the host and on the challenge of the causal microorganism(s). We measured levels of immunoglobulins (Igs) and complement in 257 hospitalized adults with CAP and examined the association of low levels of Igs or complement to microbial etiology, disease severity, and short-term and long-term ...
    • Markers of extracellular matrix remodeling and systemic inflammation in patients with heritable thoracic aortic diseases 

      Seim, Bjørn Edvard; Holt, Margrethe Flesvig; Ratajska, Aleksandra; Michelsen, Annika Elisabet; Ringseth, Monica Myklebust; Halvorsen, Bente; Skjelland, Mona; Kvitting, John-Peder; Lundblad, Runar; Krohg-Sørensen, Kirsten; Osnes, Liv T. N.; Aukrust, Pål; Paus, Benedicte; Ueland, Thor (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-20)
      Background: In approximately 20% of patients with thoracic aortic aneurysms or dissections a heritable thoracic aortic disease (HTAD) is suspected. Several monogenic connective tissue diseases imply high risk of aortic disease, including both non-syndromic and syndromic forms. There are some studies assessing inflammation and extracellular matrix remodeling in patients with non-hereditary aortic ...
    • Monocyte/macrophage and T cell activation markers are not independently associated with MI risk in healthy individuals - results from the HUNT Study 

      Ueland, Thor; Laugsand, Lars Erik; Vatten, Lars Johan; Janszky, Imre; Platou, Carl Geoffrey Parrinder; Michelsen, Annika; Damås, Jan Kristian; Aukrust, Pål; Åsvold, Bjørn Olav (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-06-06)
      <p><i>Background</i>: We hypothesized that circulating markers reflecting monocyte/macrophage and T cell activation are associated with increased risk of myocardial infarction (MI) in apparently healthy individuals.</p> <p><i>Methods</i>: Serum monocyte/macrophage and T cell activation markers soluble (s) CD163, sCD14, Gal3BP, sCD25 and sCD166 were analyzed by enzyme-immunoassay in a case-control ...
    • Osteoprotegerin is associated with major bleeding but not with cardiovascular outcomes in patients with acute coronary syndromes: Insights from the PLATO (Platelet Inhibition and Patient Outcomes) trial 

      Ueland, Thor; Åkerblom, Axel; Ghukasyan, Tatevik; Michelsen, Annika; Aukrust, Pål; Becker, Richard C.; Bertilsson, Maria; Himmelmann, Anders; James, Stefan K.; Siegbahn, Agneta; Storey, Robert F.; Kontny, Frederic; Wallentin, Lars (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-01-12)
      Background: <br>Elevated levels of osteoprotegerin, a secreted tumor necrosis factor–related molecule, might be associated with adverse outcomes in patients with coronary artery disease. We measured plasma osteoprotegerin concentrations on hospital admission, at discharge, and at 1 and 6 months after discharge in a predefined subset (n=5135) of patients with acute coronary syndromes in the PLATO ...