Blar i NTNU Open på forfatter "Damås, Jan Kristian"
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A Complex Interaction between Rickettsia conorii and Dickkopf-1 - Potential Role in Immune Evasion Mechanisms in Endothelial Cells
Astrup, Elisabeth; Lekva, Tove; Davi, Giovanni; Otterdal, Kari; Santilli, Francesca; Øie, Erik; Halvorsen, Bente; Damås, Jan Kristian; Raoult, Didier; Vitale, Giustina; Olano, Juan P; Ueland, Thor; Aukrust, Pål (Journal article; Peer reviewed, 2012)The pathophysiological hallmark of spotted fever group rickettsioses comprises vascular inflammation. Based on the emerging importance of the wingless (Wnt) pathways in inflammation and vascular biology, we hypothesized ... -
Associations of obesity and lifestyle with the risk and mortality of bloodstream infection in a general population: a 15-year follow-up of 64 027 individuals in the HUNT Study
Paulsen, Julie; Askim, Åsa Susanne; Mohus, Randi Marie; Mehl, Arne; Dewan, Andrew; Solligård, Erik; Damås, Jan Kristian; Åsvold, Bjørn Olav (Journal article; Peer reviewed, 2017)Background: Bloodstream infections (BSI) cause considerable morbidity and mortality, and primary prevention should be a priority. Lifestyle factors are of particular interest since they represent a modifiable target. Methods: ... -
Bronchial microdialysis monitoring of inflammatory response in open abdominal aortic aneurysm repair; an observational study.
Tyvold, Stig Sverre; Dahl, Torbjørn; Dragsund, Stein; Gunnes, Sigurd; Lyng, Oddveig; Damås, Jan Kristian; Aadahl, Petter; Solligård, Erik (Journal article; Peer reviewed, 2017)Aortic surgery results in ischemia–reperfusion injury that induces an inflammatory response and frequent complications. The magnitude of the inflammatory response in blood and bronchi may be associated with the risk of ... -
Burden of bloodstream infection in an area of Mid-Norway 2002-2013: A prospective population-based observational study
Mehl, Arne; Åsvold, Bjørn Olav; Lydersen, Stian; Paulsen, Julie; Solligård, Erik; Damås, Jan Kristian; Harthug, Stig; Edna, Tom-Harald (Journal article; Peer reviewed, 2017)Background Studies from several countries indicate that the incidence and mortality of bloodstream infection (BSI) have been increasing over time. Methods We studied the burden of disease and death related to BSI in ... -
C-C Motif Ligand 20 (CCL20) and C-C Motif Chemokine Receptor 6 (CCR6) in Human Peripheral Blood Mononuclear Cells: Dysregulated in Ulcerative Colitis and a Potential Role for CCL20 in IL-1β Release
Skovdahl, Helene Kolstad; Damås, Jan Kristian; Granlund, Atle van Beelen; Østvik, Ann Elisabet; Doseth, Berit; Bruland, Torunn; Mollnes, Tom Eirik; Sandvik, Arne Kristian (Journal article; Peer reviewed, 2018)The chemokine C-C motif ligand 20 (CCL20) is increased in the colonic mucosa during active inflammatory bowel disease (IBD) and can be found both in the epithelium and immune cells in the lamina propria. The present study ... -
Cyclodextrin Reduces Cholesterol Crystal-Induced Inflammation by Modulating Complement Activation
Bakke, Siril Skaret; Aune, Marie Hjelmseth; Niyonzima, Nathalie; Pilely, Katrine; Ryan, Liv; Skjelland, Mona; Garred, Peter; Aukrust, Pål; Halvorsen, Bente; Latz, Eicke; Damås, Jan Kristian; Mollnes, Tom Eirik; Espevik, Terje (Journal article; Peer reviewed, 2017)Cholesterol crystals (CC) are abundant in atherosclerotic plaques and promote inflammatory responses via the complement system and inflammasome activation. Cyclic oligosaccharide 2-hydroxypropyl-β-cyclodextrin (BCD) is a ... -
Cyclodextrin Reduces Cholesterol Crystal-Induced Inflammation by Modulating Complement Activation
Bakke, Siril Skaret; Aune, Marie Hjelmseth; Niyonzima, Nathalie; Pilely, Katrine; Ryan, Liv; Skjelland, Mona; Garred, Peter; Aukrust, Pål; Halvorsen, Bente; Latz, Eicke; Damås, Jan Kristian; Mollnes, Tom Eirik; Espevik, Terje (Journal article, 2017)Cholesterol crystals (CC) are abundant in atherosclerotic plaques and promote inflammatory responses via the complement system and inflammasome activation. Cyclic oligosaccharide 2-hydroxypropyl-β-cyclodextrin (BCD) is a ... -
Cytokine Network in Scrub Typhus: High Levels of Interleukin-8 Are Associated with Disease Severity and Mortality
Astrup, Elisabeth; Janardhanan, J; Otterdal, Kari; Ueland, Thor; Prakash, JAJ; Lekva, Tove; Strand, Øystein Anders; Abraham, OC; Thomas, K; Damås, Jan Kristian; Mathews, P; Mathai, D; Aukrust, Pål; Varghese, GM (Journal article; Peer reviewed, 2014)Background: Scrub typhus, caused by Orientia tsutsugamushi, is endemic in the Asia-Pacific region. Mortality is high if untreated, and even with treatment as high as 10–20%, further knowledge of the immune response during ... -
Early identification and risk factors for sepsis-clinical and epidemiological studies
Askim, Åsa Susanne (Doctoral theses at NTNU;2018:161, Doctoral thesis, 2018)Denne avhandlingen fokuserer på risikofaktorer for sepsis; angst og depresjon, alder, kjønn, komorbiditet og livsstil, og vurderer ulike verktøy for tidlig identifisering av pasienter med sepsis. Sepsis rammer 30 millioner ... -
Early identification of sepsis in hospital inpatients by ward nurses increases 30-day survival
Torsvik, Malvin; Gustad, Lise; Mehl, Arne; Bangstad, Inger Lise; Vinje, Liv Jorun; Damås, Jan Kristian; Solligård, Erik (Journal article; Peer reviewed, 2016)Background: Systemic inflammatory response syndrome (SIRS) and sepsis are now frequently identified by observations of vital signs and detection of organ failure during triage in the emergency room. However, there is less ... -
Effect of a single dose of the interleukin-6 receptor antagonist tocilizumab on inflammation and troponin T release in patients with non-ST-elevation myocardial infarction: a double-blind, randomized, placebo-controlled phase 2 trial
Kleveland, Ola; Kunszt, Gabor; Bratlie, Marte; Ueland, Thor; Broch, Kaspar; Holte, Espen; Michelsen, Annika; Bendz, Bjørn; Amundsen, Brage H.; Espevik, Terje; Aakhus, Svend; Damås, Jan Kristian; Aukrust, Pål; Wiseth, Rune; Gullestad, Lars (Journal article; Peer reviewed, 2016)Aims Interleukin-6 (IL-6) contributes to atherosclerotic plaque destabilization and is involved in myocardial injury during ischaemia–reperfusion. Interleukin-6 is therefore a potential therapeutic target in myocardial ... -
Enhanced expression of CXCL10 in inflammatory bowel disease: Potential role of mucosal toll-like 3 receptor stimulation
Østvik, Ann Elisabet; Granlund, Atle; Bugge, Marit; Nilsen, Nadra; Torp, Sverre Helge; Waldum, Helge; Damås, Jan Kristian; Espevik, Terje; Sandvik, Arne Kristian (Journal article, 2013)We explored the gene expression in colonic biopsies of active and inactive inflammatory bowel disease (IBD), in an extensive material of ulcerative colitis (UC) and Crohn`s disease (CD). The chemokine CXCL10 and its receptor ... -
Epidemiology and outcome of sepsis in adult patients with Streptococcus pneumoniae infection in a Norwegian county 1993-2011: an observational study
Askim, Åsa Susanne; Mehl, Arne; Paulsen, Julie; DeWan, Andrew T.; VESTRHEIM, DIDRIK FRIMANN; Åsvold, Bjørn Olav; Damås, Jan Kristian; Solligård, Erik (Journal article; Peer reviewed, 2016)Background: Invasive pneumococcal disease (IPD) is responsible for significant mortality and morbidity worldwide. There are however few longitudinal studies on the changes in case fatality rate of IPD in recent years. ... -
Epidemiology and outcome of Staphylococcus aureusbloodstream infection and sepsis in a Norwegian county 1996–2011: an observational study
Paulsen, Julie; Mehl, Arne; Askim, Åsa Susanne; Solligård, Erik; Åsvold, Bjørn Olav; Damås, Jan Kristian (Journal article; Peer reviewed, 2015)Background: Staphylococcus aureus is one of the most common and lethal causes of bloodstream infection and the incidence is increasing. We carried out a prospective observational study of patients with Staphylococcus ... -
Exploring the role of TLR8 as a sensor in bacterial infections
Ehrnström, Birgitta (Doctoral theses at NTNU;2019:382, Doctoral thesis, 2019) -
Expression of CCL20 and Its Corresponding Receptor CCR6 Is Enhanced in Active Inflammatory Bowel Disease, and TLR3 Mediates CCL20 Expression in Colonic Epithelial Cells
Skovdahl, Helene Kolstad; Granlund, Atle Van Beelen; Østvik, Ann Elisabet; Bakke, Ingunn; Bruland, Torunn; Torp, Sverre Helge; Damås, Jan Kristian; Sandvik, Arne Kristian (Journal article; Peer reviewed, 2015)Background: The chemokine CCL20 and its receptor CCR6 are putative drug targets in inflammatory bowel disease, and CCL20 is a novel IBD predilection gene. Previous findings on the CCL20 response in these diseases are ... -
Expression of Toll-like receptor-3 is enhanced in active inflammatory bowel disease and mediates the excessive release of lipocalin 2
Østvik, Ann Elisabet; Granlund, Atle Van Beelen; Torp, Sverre Helge; Flatberg, Arnar; Beisvag, Vidar; Waldum, Helge; Flo, Trude Helen; Espevik, Terje; Damås, Jan Kristian; Sandvik, Arne Kristian (Journal article; Peer reviewed, 2013)Anti-microbial peptides might influence the pathogenesis and course of inflammatory bowel disease (IBD). We sought to clarify the role of the anti-microbial glycoprotein lipocalin 2 (LCN2) in the colon by determining its ... -
Fecal neutrophil gelatinase-associated lipocalin as a biomarker for inflammatory bowel disease
Thorsvik, Silje; Damås, Jan Kristian; Granlund, Atle van Beelen; Flo, Trude Helen; Bergh, Kåre; Østvik, Ann Elisabet; Sandvik, Arne Kristian (Journal article; Peer reviewed, 2017)Background and Aim Accurate, noninvasive biomarkers are needed to diagnose and monitor inflammatory bowel disease (IBD). Neutrophil gelatinase-associated lipocalin (NGAL), also known as lipocalin 2, is expressed in inflamed ... -
Human Toll-like Receptor 8 (TLR8) Is an Important Sensor of Pyogenic Bacteria, and Is Attenuated by Cell Surface TLR Signaling
Moen, Siv Helen; Ehrnström, Birgitta; Kojen, June Frengen; Yurchenko, Mariya; Beckwith, Kai Sandvold; Afset, Jan Egil; Damås, Jan Kristian; Zhenyi, Hu; Hang, Yin; Espevik, Terje; Stenvik, Jørgen (Journal article; Peer reviewed, 2019)TLR8 is an endosomal sensor of RNA degradation products in human phagocytes, and is involved in the recognition of viral and bacterial pathogens. We previously showed that in human primary monocytes and monocyte derived ... -
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; Peer reviewed, 2018)Background: 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 ...