Annika Elisabet Michelsen

• Nilsen, Dennis WT; Aarsetøy, Reidun; Pønitz, Volker; Ueland, Thor; Michelsen, Annika Elisabet & Aukrust, Pål [Vis alle 9 forfattere av denne artikkelen] (2024). α1-Antichymotrypsin Complex (SERPINA3) Is an Independent Predictor of All-Cause but Not Cardiovascular Mortality in Patients Hospitalized for Chest Pain of Suspected Coronary Origin. Cardiology. ISSN 0008-6312. doi: 10.1159/000537919. Vis sammendrag

  Introduction: SERPINA3 is an acute phase protein triggered by inflammation. It is upregulated after an acute myocardial infarction (AMI). Data on its long-term prognostic value in MI patients are scarce. We aimed to assess the utility of SERPINA3 as a prognostic marker in patients hospitalized for chest pain of suspected coronary origin. Methods: A total of 871 consecutive patients, 386 diagnosed with AMI, were included. Stepwise Cox regression models, applying continuous loge-transformed values, were fitted for the biomarker with all-cause mortality and cardiac death within 2-years or all-cause mortality within median 7 years as dependent variables. An analysis of MI and stroke, and combined endpoints, respectively, was added. The hazard ratio (HR) (95% CI) was assessed in a univariate and multivariable model. Results: Plasma samples from 847 patients were available. By 2 years follow-up, 138 (15.8%) patients had died, of which 86 were cardiac deaths. The univariate analysis showed a significant association between SERPINA3 and all-cause mortality [HR 1.41 (95% 1.19-1.68), p<0.001], but not for cardiac death. Associations after adjustment were non-significant. By 7 years follow-up, 332 (38.1%) patients had died. SERPINA3 was independently associated with all-cause mortality from the third year onwards. The HR was 1.14 (95% CI, 1.02-1.28), p=0.022. Similar results applied to combined endpoints, but not for MI and stroke, respectively. The prognostic value of SERPINA3 was limited to non-AMI patients. No independent associations were noted among AMI patients. Conclusions: SERPINA3 predicts long-term all-cause mortality, but failed to predict outcome in AMI patients.

• Sarneel, Judith M.; Hefting, Mariet M.; Sandén, Taru; van den Hoogen, Johan; Routh, Devin & Adhikari, Bhupendra S. [Vis alle 108 forfattere av denne artikkelen] (2024). Reading tea leaves worldwide: Decoupled drivers of initial litter decomposition mass-loss rate and stabilization. Ecology Letters. ISSN 1461-023X. 27(5). doi: 10.1111/ele.14415.
• Grannes, Helene; Ueland, Thor; Simeone, Paola; Liani, Rossella; Guagnano, Maria Teresa & Aukrust, Pål [Vis alle 14 forfattere av denne artikkelen] (2024). Liraglutide and not lifestyle intervention reduces soluble CD163 after comparable weight loss in obese participants with prediabetes or type 2 diabetes mellitus. Cardiovascular Diabetology. ISSN 1475-2840. 23(1). doi: 10.1186/s12933-024-02237-8.
• Nilsen, Dennis WT; Aarsetoey, Reidun; Poenitz, Volker; Ueland, Thor; Aukrust, Pål & Michelsen, Annika Elisabet [Vis alle 9 forfattere av denne artikkelen] (2024). Chemokine ligand 18 predicts all-cause mortality in patients hospitalized with chest pain of suspected coronary origin. International Journal of Cardiology: Cardiovascular Risk and Prevention (IJCCRP). ISSN 2772-4875. 21. doi: 10.1016/j.ijcrp.2024.200264.
• Kong, Xiang Yi; Lauritzen, Knut Husø; Dahl, Tuva Børresdatter; Holm, Sverre; Olsen, Maria Belland & Skjelland, Mona [Vis alle 12 forfattere av denne artikkelen] (2024). CD38 deficient mice are not protected from atherosclerosis. Biochemical and Biophysical Research Communications - BBRC. ISSN 0006-291X. 705. doi: 10.1016/j.bbrc.2024.149734.
• Damås, Jan Kristian; Otterdal, Kari; Astrup, Elisabeth; Lekva, Tove; Janardhanan, Jeshina & Michelsen, Annika Elisabet [Vis alle 9 forfattere av denne artikkelen] (2024). Canonical notch activation in patients with scrub typhus: association with organ dysfunction and poor outcome. Infection. ISSN 0300-8126. doi: 10.1007/s15010-024-02192-2.
• Dahlberg, Daniel; Holm, Sverre; Sagen, Ellen Lund; Michelsen, Annika Elisabet; Stensland, Maria & De Souza, Gustavo Antonio [Vis alle 10 forfattere av denne artikkelen] (2023). Bacterial Brain Abscesses Expand Despite Effective Antibiotic Treatment: A Process Powered by Osmosis Due to Neutrophil Cell Death. Neurosurgery. ISSN 0148-396X. doi: 10.1227/neu.0000000000002792. Fulltekst i vitenarkiv
• Ueland, Thor; Michelsen, Annika Elisabet; Tveita, Anders; Kåsine, Trine; Dahl, Tuva Børresdatter & Finbråten, Ane-Kristine [Vis alle 16 forfattere av denne artikkelen] (2023). Coagulopathy and adverse outcomes in hospitalized patients with COVID-19: results from the NOR-Solidarity trial. Research and Practice in Thrombosis and Haemostasis (RPTH). ISSN 2475-0379. 8(1). doi: 10.1016/j.rpth.2023.102289. Fulltekst i vitenarkiv
• Lekva, Tove; Sundaram, Arvind; Roland, Marie Cecilie; Åsheim, June; Michelsen, Annika Elisabet & Norwitz, Errol R. [Vis alle 9 forfattere av denne artikkelen] (2023). Platelet and mitochondrial RNA is decreased in plasma-derived extracellular vesicles in women with preeclampsia—an exploratory study. BMC Medicine. ISSN 1741-7015. 21(1). doi: 10.1186/s12916-023-03178-x. Fulltekst i vitenarkiv
• Lekva, Tove; Michelsen, Annika Elisabet; Roland, Marie Cecilie; Norwitz, Errol R.; Estensen, Mette-Elise & Olstad, Ole Kristoffer [Vis alle 11 forfattere av denne artikkelen] (2023). Increased ferroptosis in leukocytes from preeclamptic women involving the long non-coding taurine upregulated gene 1 (TUG1). Journal of Internal Medicine. ISSN 0954-6820. 295(2), s. 181–195. doi: 10.1111/joim.13732. Fulltekst i vitenarkiv
• Murphy, Sarah Louise Mikalsen; Halvorsen, Bente; Holter, Jan Cato; Huse, Camilla; Tveita, Anders & Trøseid, Marius [Vis alle 24 forfattere av denne artikkelen] (2023). Circulating markers of extracellular matrix remodelling in severe COVID-19 patients. Journal of Internal Medicine. ISSN 0954-6820. 294(6), s. 784–797. doi: 10.1111/joim.13725. Fulltekst i vitenarkiv
• Macpherson, Magnhild Eide; Skarpengland, Tonje; Hov, Johannes Espolin Roksund; Ranheim, Trine; Vestad, Beate & Dahl, Tuva Børresdatter [Vis alle 14 forfattere av denne artikkelen] (2023). Increased Plasma Levels of Triglyceride-Enriched Lipoproteins Associate with Systemic Inflammation, Lipopolysaccharides, and Gut Dysbiosis in Common Variable Immunodeficiency. Journal of Clinical Immunology. ISSN 0271-9142. 43, s. 1229–1240. doi: 10.1007/s10875-023-01475-x. Fulltekst i vitenarkiv
• Falch, Camilla Maria; Arlien-Søborg, Mai Christiansen; Dal, Jakob; Sundaram, Arvind; Michelsen, Annika Elisabet & Ueland, Thor [Vis alle 11 forfattere av denne artikkelen] (2023). Gene expression profiling of subcutaneous adipose tissue reveals new biomarkers in acromegaly. European Journal of Endocrinology (EJE). ISSN 0804-4643. 188(3), s. 310–321. doi: 10.1093/ejendo/lvad031. Fulltekst i vitenarkiv
• Oppen, Kjersti; Brede, Cato; Skadberg, Øyvind; Steinsvik, Trude; Holter, Jan Cato & Michelsen, Annika Elisabet [Vis alle 7 forfattere av denne artikkelen] (2023). Hepcidin analysis in pneumonia: Comparison of immunoassay and LC-MS/MS. Annals of Clinical Biochemistry. ISSN 0004-5632. 60(5), s. 298–305. doi: 10.1177/00045632231159529. Fulltekst i vitenarkiv
• Selvakumar, Joel Pradeepkumar; Havdal, Lise Beier; Drevvatne, Martin Solstrand; Brodwall, Elias Myrstad; Lund-Berven, Lise & Stiansen-Sonerud, Tonje [Vis alle 19 forfattere av denne artikkelen] (2023). Prevalence and Characteristics Associated With Post-COVID-19 Condition Among Nonhospitalized Adolescents and Young Adults. JAMA Network Open. ISSN 2574-3805. 6(3). doi: 10.1001/jamanetworkopen.2023.5763. Fulltekst i vitenarkiv
• Skjeflo, Espen Waage; Evensen, Line Holtet; Jensen, Søren Beck; Latysheva, Nadezhda; Michelsen, Annika Elisabet & Ueland, Thor [Vis alle 11 forfattere av denne artikkelen] (2023). Complement factors B, D, C3bBbP and risk of future venous thromboembolism. Clinical Immunology. ISSN 1521-6616. 249:109278, s. 1–7. doi: 10.1016/j.clim.2023.109278. Fulltekst i vitenarkiv
• Farbu, Bjørn Hoftun; Langeland, Halvor; Ueland, Thor; Michelsen, Annika Elisabet; Krüger, Andreas Jørstad & Klepstad, Pål [Vis alle 7 forfattere av denne artikkelen] (2023). Intestinal injury in cardiac arrest is associated with multiple organ dysfunction: A prospective cohort study. Resuscitation. ISSN 0300-9572. 185. doi: 10.1016/j.resuscitation.2023.109748. Fulltekst i vitenarkiv
• Sommen, Silke Lauren; Havdal, Lise Beier; Selvakumar, Joel Pradeepkumar; Einvik, Gunnar; Leegaard, Truls Michael & Lund-Johansen, Fridtjof [Vis alle 12 forfattere av denne artikkelen] (2022). Inflammatory markers and pulmonary function in adolescents and young adults 6 months after mild COVID-19. Frontiers in Immunology. ISSN 1664-3224. 13, s. 1–12. doi: 10.3389/fimmu.2022.1081718. Fulltekst i vitenarkiv
• Nilsen, Dennis W.T.; Røysland, Michelle; Ueland, Thor; Aukrust, Pål; Michelsen, Annika Elisabet & Staines, Harry [Vis alle 10 forfattere av denne artikkelen] (2022). The Effect of Protease-Activated Receptor-1 (PAR-1) Inhibition on Endothelial-Related Biomarkers in Patients with Coronary Artery Disease. Thrombosis and Haemostasis. ISSN 0340-6245. doi: 10.1055/s-0042-1760256. Fulltekst i vitenarkiv Vis sammendrag

  Abstract Background: Vorapaxar has been shown to reduce cardiovascular mortality in postmyocardial infarction (MI) patients. Pharmacodynamic biomarker research related to protease-activated receptor-1 (PAR-1) inhibition with vorapaxar in humans has short follow-up (FU) duration and is mainly focused on platelets rather than endothelial cells. Aim: This article assesses systemic changes in endothelial-related biomarkers during vorapaxar treatment compared with placebo at 30 days’ FU and beyond, in patients with coronary heart disease. Methods: Local substudy patients in Norway were included consecutively from two randomized controlled trials; post-MI subjects from TRA2P-TIMI 50 and non-ST-segment elevation MI (NSTEMI) patients from TRACER. Aliquots of citrated blood were stored at–80°C. Angiopoietin-2, angiopoietin-like 4, vascular endothelial growth factor, intercellular adhesion molecule-1, vascular cell adhesion molecule-1, E-selectin, von Willebrand factor, thrombomodulin, and plasminogen activator inhibitor-1 and -2 were measured at 1-month FU and at study completion (median 2.3 years for pooled patients). Results: A total of 265 consecutive patients (age median 62.0, males 83%) were included. Biomarkers were available at both FUs in 221 subjects. In the total population, angiopoietin-2 increased in patients on vorapaxar as compared with placebo at 1-month FU (p ¼ 0.034). Angiopoietin-like 4 increased (p ¼ 0.028) and plasminogen activator inhibitor-2 decreased (p ¼ 0.025) in favor of vorapaxar at final FU. In postMI subjects, a short-term increase in E-selectin favoring vorapaxar was observed, p ¼ 0.029. Also, a short-term increase in von Willebrand factor (p ¼ 0.032) favoring vorapaxar was noted in NSTEMI patients. Conclusion: Significant endothelial biomarker changes during PAR-1 inhibition were observed in post-MI and NSTEMI patients.

• Seim, Bjørn Edvard; Holt, Margrethe Flesvig; Ratajska, Aleksandra; Michelsen, Annika Elisabet; Ringseth, Monica Myklebust & Halvorsen, Bente [Vis alle 14 forfattere av denne artikkelen] (2022). Markers of extracellular matrix remodeling and systemic inflammation in patients with heritable thoracic aortic diseases. Frontiers in Cardiovascular Medicine. ISSN 2297-055X. 9, s. 1–9. doi: 10.3389/fcvm.2022.1073069. Fulltekst i vitenarkiv
• Lee-Ødegård, Sindre; Ueland, Thor; Thorsby, Per Medbøe; Aukrust, Pål; Michelsen, Annika Elisabet & Halvorsen, Bente [Vis alle 8 forfattere av denne artikkelen] (2022). Fetuin-A mediates the difference in adipose tissue insulin resistance between young adult pakistani and norwegian patients with type 2 diabetes. BMC Endocrine Disorders. ISSN 1472-6823. 22. doi: 10.1186/s12902-022-01127-y. Fulltekst i vitenarkiv Vis sammendrag

  Background South-Asian immigrants to Western countries have a high prevalence of type 2 diabetes mellitus (T2DM) and increased adipose tissue insulin resistance (AT-IR), as compared to their Western counterparts. Fetuin-A is a hepatokine known to influence AT-IR. Aim Can plasma fetuin-A concentrations explain an ethnic difference in adipose tissue insulin resistance? Methods We performed a two-step euglycemic-hyperinsulinaemic clamp and measured plasma concentrations of fetuin-A and non-esterified fatty acids (NEFA), in 18 Pakistani and 21 Norwegians with T2DM (age 29–45y) in Norway. AT-IR was calculated as NEFA-suppression during the clamp. The adipokines/cytokines leptin, adiponectin, visfatin, PTX3, IL-1β, INF-γ, and IL-4 were measured in fasting plasma. Liver fat was estimated by CT-scans. Results Despite a lower BMI, Pakistani patients displayed higher AT-IR than Norwegians. NEFA-suppression during clamp was lower in Pakistani than Norwegians (mean=-20.6%, 95%CI=[-40.8, -0.01] and p = 0.046). Plasma fetuin-A concentration was higher in Pakistani than Norwegians (43.4 ng/mL[12.7,74.0], p = 0.007) and correlated negatively to %NEFA-suppression during clamp (rho=-0.39, p = 0.039). Plasma fetuin-A concentration explained 22% of the ethnic difference in NEFA-suppression during the clamp. Pakistani patients exhibited higher plasma leptin and lower PTX3 levels than Norwegian, and plasma visfatin correlated positively to plasma fetuin-A levels in the Pakistani patients. We observed no correlation between plasma fetuin-A and liver fat, but fetuin-A correlated negatively with plasma IL-1β, INF-γ, and IL-4 concentrations. Plasma IL-4 concentration was lower in Pakistani than in Norwegian patients. Conclusion Fetuin-A may contribute to explain the discrepancy in T2DM prevalence between Pakistani and Norwegians patients by influencing AT-IR.

• Huse, Camilla; Anstensrud, Anne Kristine; Michelsen, Annika Elisabet; Ueland, Thor; Broch, Kaspar & Woxholt, Sindre [Vis alle 29 forfattere av denne artikkelen] (2022). Interleukin-6 inhibition in ST-elevation myocardial infarction: Immune cell profile in the randomised ASSAIL-MI trial. EBioMedicine. ISSN 2352-3964. 80. doi: 10.1016/j.ebiom.2022.104013. Fulltekst i vitenarkiv
• Søraas, Arne Vasli; Grødeland, Gunnveig; Granerud, Beathe Kiland; Ueland, Thor; Lind, Andreas & Fevang, Børre [Vis alle 32 forfattere av denne artikkelen] (2022). Breakthrough infections with the omicron and delta variants of SARS-CoV-2 result in similar re-activation of vaccine-induced immunity. Frontiers in Immunology. ISSN 1664-3224. 13:964525, s. 1–12. doi: 10.3389/fimmu.2022.964525. Fulltekst i vitenarkiv Vis sammendrag

  Background: Results showing that sera from double vaccinated individuals have minimal neutralizing activity against Omicron have been interpreted as indicating the need for a third vaccine dose for protection. However, there is little information about early immune responses to Omicron infection in double vaccinated individuals. Methods: We measured inflammatory mediators, antibodies to the SARS-CoV-2 spike and nucleocapsid proteins, and spike peptide-induced release of interferon gamma in whole blood in 51 double-vaccinated individuals infected with Omicron, in 14 infected with Delta, and in 18 healthy controls. The median time points for the first and second samples were 7 and 14 days after symptom onset, respectively. Findings: Infection with Omicron or Delta led to a rapid and similar increase in antibodies to the receptor-binding domain (RBD) of Omicron protein and spike peptide-induced interferon gamma in whole blood. Both the Omicron- and the Delta-infected patients had a mild and transient increase in inflammatory parameters. Interpretation: The results suggest that two vaccine doses are sufficient to mount a rapid and potent immune response upon infection in healthy individuals of with the Omicron variant.

• Fraz, Mai Sasaki Aanensen; Michelsen, Annika Elisabet; Moe, Natasha; Aaløkken, Trond Mogens; Macpherson, Magnhild Eide & Nordøy, Ingvild [Vis alle 12 forfattere av denne artikkelen] (2022). Raised Serum Markers of T Cell Activation and Exhaustion in Granulomatous-Lymphocytic Interstitial Lung Disease in Common Variable Immunodeficiency. Journal of Clinical Immunology. ISSN 0271-9142. s. 1–11. doi: 10.1007/s10875-022-01318-1. Fulltekst i vitenarkiv
• Tveita, Anders Aune; Murphy, Sarah Louise Mikalsen; Holter, Jan Cato; Kildal, Anders Benjamin; Michelsen, Annika Elisabet & Lerum, Tøri Vigeland [Vis alle 28 forfattere av denne artikkelen] (2022). High Circulating Levels of the Homeostatic Chemokines CCL19 and CCL21 Predict Mortality and Disease Severity in COVID-19. Journal of Infectious Diseases. ISSN 0022-1899. 226(12), s. 2150–2160. doi: 10.1093/infdis/jiac313. Fulltekst i vitenarkiv
• Trøseid, Marius; Dahl, Tuva Børresdatter; Holter, Jan Cato; Kildal, Anders Benjamin; Murphy, Sarah Louise Mikalsen & Yang, Kuan [Vis alle 28 forfattere av denne artikkelen] (2022). Persistent T-cell exhaustion in relation to prolonged pulmonary pathology and death after severe COVID-19: Results from two Norwegian cohort studies. Journal of Internal Medicine. ISSN 0954-6820. 292(5), s. 816–828. doi: 10.1111/joim.13549. Fulltekst i vitenarkiv
• Ueland, Thor; Sørvoll, Ingvild Hausberg; Mørtberg, Trude Victoria; Dahl, Tuva Børresdatter; Lerum, Tøri Vigeland & Michelsen, Annika Elisabet [Vis alle 16 forfattere av denne artikkelen] (2022). Anti-PF4/polyanion antibodies in COVID-19 patients are associated with disease severity and pulmonary pathology. Platelets. ISSN 0953-7104. 33(4), s. 640–644. doi: 10.1080/09537104.2022.2042238. Fulltekst i vitenarkiv
• Oppen, Kjersti; Ueland, Thor; Michelsen, Annika Elisabet; Aukrust, Pål; Steinsvik, Trude & Skadberg, Øyvind [Vis alle 11 forfattere av denne artikkelen] (2022). Hepcidin predicts 5-year mortality after community-acquired pneumonia. Infectious Diseases. ISSN 2374-4235. 54(6), s. 403–409. doi: 10.1080/23744235.2021.2022194. Fulltekst i vitenarkiv
• Simeone, Paola; Tripaldi, Romina; Michelsen, Annika Elisabet; Ueland, Thor; Liani, Rossella & Ciotti, Sonia [Vis alle 14 forfattere av denne artikkelen] (2022). Effects of liraglutide vs. lifestyle changes on soluble suppression of tumorigenesis-2 (sST2) and galectin-3 in obese subjects with prediabetes or type 2 diabetes after comparable weight loss. Cardiovascular Diabetology. ISSN 1475-2840. 21. doi: 10.1186/s12933-022-01469-w. Fulltekst i vitenarkiv
• Berven, Lise; Selvakumar, Joel Pradeepkumar; Havdal, Lise Beier; Stiansen-Sonerud, Tonje; Einvik, Gunnar & Leegaard, Truls Michael [Vis alle 10 forfattere av denne artikkelen] (2022). Inflammatory Markers, Pulmonary Function, and Clinical Symptoms in Acute COVID-19 Among Non-Hospitalized Adolescents and Young Adults. Frontiers in Immunology. ISSN 1664-3224. 13:837288, s. 1–11. doi: 10.3389/fimmu.2022.837288. Fulltekst i vitenarkiv
• Vestad, Beate; Ueland, Thor; Lerum, Tøri Vigeland; Dahl, Tuva Børresdatter; Holm, Kristian & Barratt-Due, Andreas [Vis alle 37 forfattere av denne artikkelen] (2022). Respiratory dysfunction three months after severe COVID-19 is associated with gut microbiota alterations. Journal of Internal Medicine. ISSN 0954-6820. 291(6), s. 801–812. doi: 10.1111/joim.13458. Fulltekst i vitenarkiv Vis sammendrag

  Background: Although coronavirus disease 2019 (COVID-19) is primarily a respiratory infection, mounting evidence suggests that the gastrointestinal (GI) tract is involved in the disease, with gut barrier dysfunction and gut microbiota alterations being related to disease severity. Whether these alterations persist and are related to long-term respiratory dysfunction remains unknown. Methods: Plasma was collected during hospital admission and after three months from the NOR-Solidarity trial (n = 181) and analysed for markers of gut barrier dysfunction and inflammation. At the three-month follow-up, pulmonary function was assessed by measuring the diffusing capacity of the lungs for carbon monoxide (DLCO ). Rectal swabs for gut microbiota analyses were collected (n = 97) and analysed by sequencing the 16S rRNA gene. Results: Gut microbiota diversity was reduced in COVID-19 patients with respiratory dysfunction, defined as DLCO below the lower limit of normal three months after hospitalisation. These patients also had an altered global gut microbiota composition, with reduced relative abundance of 20 bacterial taxa and increased abundance of five taxa, including Veillonella, potentially linked to fibrosis. During hospitalisation, increased plasma levels of lipopolysaccharide-binding protein (LBP) were strongly associated with respiratory failure, defined as pO2 /fiO2 -(P/F ratio)

• Holt, Margrethe Flesvig; Michelsen, Annika Elisabet; Shahini, Negar; Bjørkelund, Elisabeth; Bendz, Christina & Massey, Richard J [Vis alle 15 forfattere av denne artikkelen] (2021). The Alternative Complement Pathway Is Activated Without a Corresponding Terminal Pathway Activation in Patients With Heart Failure. Frontiers in Immunology. ISSN 1664-3224. 12. doi: 10.3389/fimmu.2021.800978. Fulltekst i vitenarkiv
• Fevang, Børre; Wyller, Vegard Bruun Bratholm; Mollnes, Tom Eirik; Pedersen, Maria; Asprusten, Tarjei Tørre & Michelsen, Annika Elisabet [Vis alle 8 forfattere av denne artikkelen] (2021). Lasting Immunological Imprint of Primary Epstein-Barr Virus Infection With Associations to Chronic Low-Grade Inflammation and Fatigue. Frontiers in Immunology. ISSN 1664-3224. 12. doi: 10.3389/fimmu.2021.715102. Fulltekst i vitenarkiv
• Langeland, Halvor Johannes Breivik; Damås, Jan Kristian; Mollnes, Tom Eirik; Ludviksen, Judith K; Ueland, Thor & Michelsen, Annika Elisabet [Vis alle 11 forfattere av denne artikkelen] (2021). The inflammatory response is related to circulatory failure after out-of-hospital cardiac arrest: A prospective cohort study. Resuscitation. ISSN 0300-9572. 170, s. 115–125. doi: 10.1016/j.resuscitation.2021.11.026. Fulltekst i vitenarkiv Vis sammendrag

  Background: Whole body ischemia and reperfusion injury after cardiac arrest leads to the massive inflammation clinically manifested in the post-cardiac arrest syndrome. Previous studies on the inflammatory effect on circulatory failure after cardiac arrest have either investigated a selected patient group or a limited part of the inflammatory mechanisms. We examined the association between cardiac arrest characteristics and inflammatory biomarkers, and between inflammatory biomarkers and circulatory failure after cardiac arrest, in an unselected patient cohort. Methods: This was a prospective study of 50 consecutive patients with out-of-hospital cardiac arrest. Circulation was invasively monitored from admission until day five, whereas inflammatory biomarkers, i.e. complement activation, cytokines and endothelial injury, were measured daily. We identified predictors for an increased inflammatory response, and associations between the inflammatory response and circulatory failure. Results: We found a marked and broad inflammatory response in patients after cardiac arrest, which was associated with clinical outcome. Long time to return of spontaneous circulation and high lactate level at admission were associated with increased complement activation (TCC and C3bc), pro-inflammatory cytokines (IL-6, IL-8) and endothelial injury (syndecan-1) at admission. These biomarkers were in turn significantly associated with lower mean arterial blood pressure, lower cardiac output and lower systemic vascular resistance, and increased need of circulatory support in the initial phase. High levels of TCC and IL-6 at admission were significantly associated with increased 30-days mortality. Conclusion: Inflammatory biomarkers, including complement activation, cytokines and endothelial injury, were associated with increased circulatory failure in the initial period after cardiac arrest.

• Hansen, Ellen-Sofie; Rinde, Fridtjof Balteskard; Edvardsen, Magnus; Hindberg, Kristian; Latysheva, Nadezhda & Aukrust, Pål [Vis alle 11 forfattere av denne artikkelen] (2021). Elevated plasma D-dimer levels are associated with risk of future incident venous thromboembolism. Thrombosis Research. ISSN 0049-3848. 208, s. 121–126. doi: 10.1016/j.thromres.2021.10.020. Fulltekst i vitenarkiv
• Helseth, Ragnhild; Kleveland, Ola; Ueland, Thor; Wiseth, Rune; Damås, Jan Kristian & Broch, Kaspar [Vis alle 11 forfattere av denne artikkelen] (2021). Tocilizumab increases citrullinated histone 3 in non-ST segment elevation myocardial infarction. Open heart. ISSN 2053-3624. 8(1). doi: 10.1136/openhrt-2020-001492. Fulltekst i vitenarkiv
• Holm, Sverre; Kared, Hassen; Michelsen, Annika Elisabet; Kong, Xiang Yi; Dahl, Tuva Børresdatter & Schultz, Nina Haagenrud [Vis alle 21 forfattere av denne artikkelen] (2021). Immune complexes, innate immunity, and NETosis in ChAdOx1 vaccine-induced thrombocytopenia. European Heart Journal. ISSN 0195-668X. 42(39), s. 4064–4072. doi: 10.1093/eurheartj/ehab506. Fulltekst i vitenarkiv
• Otterdal, Kari; Berg, Åse; Michelsen, Annika Elisabet; Yndestad, Arne; Patel, Sam & Gregersen, Ida [Vis alle 10 forfattere av denne artikkelen] (2021). IL-18 and IL-18 binding protein are related to disease severity and parasitemia during falciparum malaria. BMC Infectious Diseases. ISSN 1471-2334. 21. doi: 10.1186/s12879-021-06751-y. Fulltekst i vitenarkiv
• Aarsetøy, Reidun; Ueland, Thor; Aukrust, Pål; Michelsen, Annika Elisabet; Leon de la Fuente, Ricardo & Grundt, Magnea Heidi Jonsdottir [Vis alle 9 forfattere av denne artikkelen] (2021). Complement component 7 is associated with total- and cardiac death in chest-pain patients with suspected acute coronary syndrome. BMC Cardiovascular Disorders. ISSN 1471-2261. 21(1), s. 1–12. doi: 10.1186/s12872-021-02306-w.
• Grimnes, Gro; Bhoelan, Soerajja; Hindberg, Kristian; Davids, Mark; Nieuwdorp, Max & Mollnes, Tom E. [Vis alle 11 forfattere av denne artikkelen] (2021). 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. Thrombosis and Haemostasis. ISSN 0340-6245. 0, s. 1–12. doi: 10.1055/s-0041-1733906. Fulltekst i vitenarkiv
• Aarsetøy, Reidun; Ueland, Thor; Aukrust, Pål; Michelsen, Annika E.; de la Fuente, Ricardo Leon & Pønitz, Volker [Vis alle 10 forfattere av denne artikkelen] (2021). Angiopoietin-2 and angiopoietin-like 4 protein provide prognostic information in patients with suspected acute coronary syndrome. Journal of Internal Medicine. ISSN 0954-6820. s. 1–16. doi: 10.1111/joim.13339.
• Ueland, Thor; Astrup, Elisabeth; Otterdal, Kari; Lekva, Tove; Janardhanan, Jeshina & Prakash, John A. [Vis alle 11 forfattere av denne artikkelen] (2021). Secreted wnt antagonists in scrub typhus. PLoS Neglected Tropical Diseases. ISSN 1935-2727. 15(4), s. 1–12. doi: 10.1371/journal.pntd.0009185. Fulltekst i vitenarkiv Vis sammendrag

  Background The mechanisms that control local and systemic inflammation in scrub typhus have only been partially elucidated. The wingless (Wnt) signaling pathways are emerging as important regulators of inflammation and infection, but have not been investigated in scrub typhus. Methodology/Principal findings Plasma levels of secreted Wnt antagonists (i.e. DKK-1, sFRP-3, WIF-1 and SOST) were analyzed in patients with scrub typhus (n = 129), patients with similar febrile illness without O. tsutsugamushi infection (n = 31), febrile infectious disease controls, and in healthy controls (n = 31) from the same area of South India, and were correlated to markers of inflammation, immune and endothelial cell activation as well as for their association with organ specific dysfunction and mortality in these patients. We found i) Levels of SOST and in particular sFRP-3 and WIF-1 were markedly increased and DKK-1 decreased in scrub typhus patients at admission to the hospital compared to healthy controls. ii) In recovering scrub typhus patients, SOST, sFRP-3 and WIF-1 decreased and DKK-1 increased. iii) SOST was positively correlated with markers of monocyte/macrophage and endothelial/vascular activation as well as with renal dysfunction and poor outcome iv) Finally, regulation of Wnt pathways by O. tsutsugamushi in vitro in monocytes and ex vivo in mononuclear cells isolated from patients with scrub typhus, as evaluated by gene expression studies available in public repositories, revealed markedly attenuated canonical Wnt signaling. Conclusions/Significance Our findings suggest that scrub typhus is characterized by attenuated Wnt signaling possibly involving dysregulated levels of several secreted pathway antagonists. The secreted Wnt antagonist SOST was strongly associated with renal dysfunction and poor prognosis in these patients.

• Schultz, Nina Haagenrud; Sørvoll, Ingvild Hausberg; Michelsen, Annika; Munthe, Ludvig Andre; Lund-Johansen, Fridtjof & Ahlen, Maria Therese [Vis alle 11 forfattere av denne artikkelen] (2021). Thrombosis and thrombocytopenia after CHADOX1 NCoV-19 vaccination. New England Journal of Medicine. ISSN 0028-4793. 384(22), s. 2124–2130. doi: 10.1056/NEJMoa2104882. Fulltekst i vitenarkiv
• Oppen, Kjersti; Ueland, Thor; Siljan, William Ward; Skadberg, Øyvind; Brede, Cato & Lauritzen, Trine [Vis alle 12 forfattere av denne artikkelen] (2021). Hepcidin and ferritin predict microbial etiology in community-acquired pneumonia. Open Forum Infectious Diseases. ISSN 2328-8957. 8(4). doi: 10.1093/ofid/ofab082. Fulltekst i vitenarkiv
• Pihlstrøm, Hege; Ueland, Thor; Michelsen, Annika; Aukrust, Pål; Gatti, Francesca & Hammarström, Clara Louise [Vis alle 15 forfattere av denne artikkelen] (2020). Exploring the potential effect of paricalcitol on markers of inflammation in de novo renal transplant recipients. PLOS ONE. ISSN 1932-6203. 15:e0243759(12), s. 1–14. doi: 10.1371/journal.pone.0243759. Fulltekst i vitenarkiv
• Gelpi, Marco; Vestad, Beate; Hansen, Simen Hyll; Holm, Kristian; Drivsholm, Ninna & Götz, Alexandra [Vis alle 17 forfattere av denne artikkelen] (2020). Impact of human immunodeficiency virus-related gut microbiota alterations on metabolic comorbid conditions. Clinical Infectious Diseases. ISSN 1058-4838. 71(8), s. e359–e367. doi: 10.1093/cid/ciz1235. Fulltekst i vitenarkiv
• Arain, Fizza Kanwal; Abraityte, Judita Aurelija; Bogdanova, Mariia; Solberg, Ole Geir; Michelsen, Annika & Lekva, Tove [Vis alle 19 forfattere av denne artikkelen] (2020). YKL-40 (Chitinase-3-Like Protein 1) Serum Levels in Aortic Stenosis. Circulation: Heart Failure. ISSN 1941-3289. 13(10). doi: 10.1161/CIRCHEARTFAILURE.119.006643. Fulltekst i vitenarkiv
• Ueland, Thor; Heggelund, Lars; Lind, Andreas; Holten, Aleksander Rygh; Tonby, Kristian & Michelsen, Annika [Vis alle 26 forfattere av denne artikkelen] (2020). Elevated plasma sTIM-3 levels in patients with severe COVID-19. Journal of Allergy and Clinical Immunology. ISSN 0091-6749. 147(1), s. 92–98. doi: 10.1016/j.jaci.2020.09.007. Fulltekst i vitenarkiv
• Hoel, Hedda Benedicte; Heggelund, Lars; Reikvam, Dag Henrik; Stiksrud, Birgitte; Ueland, Thor & Michelsen, Annika [Vis alle 15 forfattere av denne artikkelen] (2020). Elevated markers of gut leakage and inflammasome activation in COVID-19 patients with cardiac involvement. Journal of Internal Medicine. ISSN 0954-6820. doi: 10.1111/joim.13178. Fulltekst i vitenarkiv
• Gregersen, Ida; Michelsen, Annika; Lunde, Ngoc Nguyen; Åkerblom, Axel; Lakic, Tatevik G. & Skjelland, Mona [Vis alle 20 forfattere av denne artikkelen] (2020). Legumain in Acute Coronary Syndromes: A Substudy of the PLATO (Platelet Inhibition and Patient Outcomes) Trial. Journal of the American Heart Association (JAHA). ISSN 2047-9980. e016360. doi: 10.1161/JAHA.120.016360. Fulltekst i vitenarkiv
• Hoel, Hedda Benedicte; Ueland, Thor; Knudsen, Andreas; Kjær, Andreas; Michelsen, Annika & Sagen, Ellen Lund [Vis alle 12 forfattere av denne artikkelen] (2020). Soluble Markers of Interleukin 1 Activation as Predictors of First-Time Myocardial Infarction in HIV-Infected Individuals. Journal of Infectious Diseases. ISSN 0022-1899. 221(4), s. 506–509. doi: 10.1093/infdis/jiz253.
• Hoel, Hedda Benedicte; Ueland, Thor; Hove-Skovsgaard, Malene; Hartling, Hans Jakob; Gelpi, Marco & Benfield, Thomas [Vis alle 11 forfattere av denne artikkelen] (2020). Soluble T-Cell Immunoglobulin Mucin Domain-3 Is Associated With Hepatitis C Virus Coinfection and Low-Grade Inflammation During Chronic Human Immunodeficiency Virus Infection. Open Forum Infectious Diseases. ISSN 2328-8957. 29(7). doi: 10.1093/ofid/ofaa033. Fulltekst i vitenarkiv
• Otterdal, Kari; Berg, Åse; Michelsen, Annika; Patel, Sam; Gregersen, Ida & Sagen, Ellen Lund [Vis alle 11 forfattere av denne artikkelen] (2020). Plasma levels of interleukin 27 in falciparum malaria is increased independently of co-infection with HIV: Potential immune-regulatory role during malaria. BMC Infectious Diseases. ISSN 1471-2334. 20(65), s. 1–11. doi: 10.1186/s12879-020-4783-8. Fulltekst i vitenarkiv
• Ueland, Thor; Åkerblom, Axel; Ghukasyan, Tatevik; Michelsen, Annika; Becker, Richard C & Bertilson, Maria [Vis alle 15 forfattere av denne artikkelen] (2019). ALCAM predicts future cardiovascular death in acute coronary syndromes: Insights from the PLATO trial. Atherosclerosis. ISSN 0021-9150. s. 35–41. doi: 10.1016/j.atherosclerosis.2019.11.031. Fulltekst i vitenarkiv Vis sammendrag

  Background and aims: Activated leukocyte cell adhesion molecule (ALCAM) is upregulated during inflammation and involved in transmigration of leukocytes and T-cell activation. We hypothesized that ALCAM might be associated with recurrent events in patients with acute coronary syndromes (ACS). Methods: ALCAM was measured in serum obtained on admission, at discharge, 1 month and 6 months in a subgroup of 5165 patients admitted with ACS and included in the PLATelet inhibition and patient Outcomes (PLATO) trial (NCT00391872). The association between ALCAM and the composite endpoint and its components, including cardiovascular (CV) death, non-procedural spontaneous myocardial infarction (MI) or stroke during 1-year follow-up, was assessed by Cox proportional hazards models with incremental addition of clinical risk factors and biomarkers (including high-sensitivity troponin T, N-terminal pro−B-type natriuretic peptide and growth differentiation factor-15). Results: The median (Q1-Q3) concentration of ALCAM at admission was 97 (80–116) ng/mL. A 50% higher level of ALCAM on admission was associated with a hazard ratio (HR) of 1.16 (95% confidence interval [1.00–1.34] p=0.043) for the composite endpoint in fully adjusted analysis, mainly driven by the association with CV death (HR 1.45 [1.16–1.82] p = 0.0012). Conclusions: In patients with ACS, admission level of ALCAM was independently associated with adverse outcome including CV death even after adjustment for established inflammatory and cardiac biomarkers.

• Ueland, Thor; Roland, Marie Cecilie; Michelsen, Annika; Godang, Kristin; Aukrust, Pål & Henriksen, Tore [Vis alle 8 forfattere av denne artikkelen] (2019). Elevated cholesteryl ester transfer protein activity early in pregnancy predicts prediabetes 5 years later. Journal of Clinical Endocrinology and Metabolism (JCEM). ISSN 0021-972X. doi: 10.1210/clinem/dgz119. Fulltekst i vitenarkiv
• Kontny, Frederic; Andersen, Thomas; Ueland, Thor; Åkerblom, Axel; Lakic, Tatevik G. & Michelsen, Annika [Vis alle 14 forfattere av denne artikkelen] (2019). Pentraxin-3 vs C-reactive Protein and Other Prognostic Biomarkers in Acute Coronary Syndrome: A Substudy of the Platelet Inhibition and Patients Outcomes (PLATO) Trial. European Heart Journal: Acute Cardiovascular Care. ISSN 2048-8726. 9(4), s. 313–322. doi: 10.1177/2048872619846334. Fulltekst i vitenarkiv
• Lunde, Ngoc Dieu Nguyen; Gregersen, Ida; Ueland, Thor; Shetelig, Christian; Holm, Sverre & Kong, Xiang Yi [Vis alle 31 forfattere av denne artikkelen] (2019). Legumain is upregulated in acute cardiovascular events and associated with improved outcome – potentially related to anti-inflammatory effects on macrophages. Atherosclerosis. ISSN 0021-9150. s. 1–9. doi: 10.1016/j.atherosclerosis.2019.12.008. Fulltekst i vitenarkiv
• Andersen, Thomas; Ueland, Thor; Ghukasyan Lakic, Tatevik; Åkerblom, Axel; Bertilsson, Maria & Aukrust, Pål [Vis alle 13 forfattere av denne artikkelen] (2019). C-X-C ligand 16 is an independent predictor of cardiovascular death and morbidity in acute coronary syndromes. Arteriosclerosis, Thrombosis and Vascular Biology. ISSN 1079-5642. 39(11), s. 2402–2410. doi: 10.1161/ATVBAHA.119.312633. Fulltekst i vitenarkiv
• Shahini, Negar; Ueland, Thor; Auensen, Andreas; Michelsen, Annika; Ludviksen, Judith K & Hussain, Amjad Iqbal [Vis alle 17 forfattere av denne artikkelen] (2019). Increased complement factor B and Bb levels are associated with mortality in patients with severe aortic stenosis. Journal of Immunology. ISSN 0022-1767. 203(7), s. 1973–1980. doi: 10.4049/jimmunol.1801244. Fulltekst i vitenarkiv
• Fosshaug, Linn Elisabeth Lillerud; Colas, Romain A.; Anstensrud, Anne Kristine; Gregersen, Ida; Nymoen, Ståle H. & Sagen, Ellen [Vis alle 15 forfattere av denne artikkelen] (2019). Early increase of specialized pro-resolving lipid mediators in patients with ST-elevation myocardial infarction. EBioMedicine. ISSN 2352-3964. 46, s. 264–273. doi: 10.1016/j.ebiom.2019.07.024. Fulltekst i vitenarkiv
• Siljan, William Ward; Holter, Jan Cato; Michelsen, Annika; Nymo, Ståle Haugset; Lauritzen, Trine & Oppen, Kjersti [Vis alle 11 forfattere av denne artikkelen] (2019). Inflammatory biomarkers are associated with aetiology and predict outcomes in community-acquired pneumonia: Results of a 5-year follow-up cohort study. ERS Monograph. ISSN 2312-508X. 5(1). doi: 10.1183/23120541.00014-2019. Fulltekst i vitenarkiv
• Jørgensen, Silje Fjellgård; Macpherson, Magnhild Eide; Bjørnetrø, Tonje; Holm, Kristian; Kummen, Martin & Rashidi, Azita [Vis alle 18 forfattere av denne artikkelen] (2019). Rifaximin alters gut microbiota profile, but does not affect systemic inflammation - a randomized controlled trial in common variable immunodeficiency. Scientific Reports. ISSN 2045-2322. 9:167, s. 1–10. doi: 10.1038/s41598-018-35367-7. Fulltekst i vitenarkiv
• Ueland, Thor; Åkerblom, Axel; Ghukasyan, Tatevik; Michelsen, Annika; Becker, Richard C. & Bertilsson, Maria [Vis alle 13 forfattere av denne artikkelen] (2019). Admission levels of DKK1 (Dickkopf-1) are associated with future cardiovascular death in patients with acute coronary syndromes. Arteriosclerosis, Thrombosis and Vascular Biology. ISSN 1079-5642. 39(2), s. 294–302. doi: 10.1161/ATVBAHA.118.311042.
• Ueland, Thor; Michelsen, Annika; Aukrust, Pål; Henriksen, Tore; Bollerslev, Jens & Lekva, Tove (2019). Adipokines and macrophage markers during pregnancy?Possible role for sCD163 in prediction and progression of gestational diabetes mellitus. Diabetes/Metabolism Research and Reviews. ISSN 1520-7552. :e3114, s. 1–9. doi: 10.1002/dmrr.3114. Fulltekst i vitenarkiv
• Otterdal, Kari; Berg, Åse; Michelsen, Annika; Patel, Sam; Tellevik, Marit Gjerde & Haanshuus, Christel Gill [Vis alle 10 forfattere av denne artikkelen] (2018). Soluble markers of neutrophil, T-cell and monocyte activation are associated with disease severity and parasitemia in falciparum malaria. BMC Infectious Diseases. ISSN 1471-2334. 18. doi: 10.1186/s12879-018-3593-8. Fulltekst i vitenarkiv Vis sammendrag

  BACKGROUND: The immune response during P. falciparum infection is a two-edged sword, involving dysregulation of the inflammatory responses with several types of immune cells participating. Here we examined T-cell, monocyte/macrophage and neutrophil activation during P. falciparum infection by using soluble activation markers for these leukocyte subsets. METHODS: In a prospective cross-sectional study clinical data and blood samples were collected from adults in Mozambique with P. falciparum infection, with (n = 70) and without (n = 61) co-infection with HIV-1, as well as HIV-infected patients with similar symptoms but without malaria (n = 58) and healthy controls (n = 52). Soluble (s)CD25, sCD14, sCD163 and myeloperoxidase (MPO) as markers for T-cell, monocyte/macrophage and neutrophil activation, respectively as well as CX3CL1, granzyme B and TIM-3 as markers of T-cell subsets and T-cell exhaustion, were analyzed. RESULTS: All patient groups had raised levels of activation markers compared with healthy controls. Levels of sCD25 and MPO increased gradually from patient with HIV only to patient with malaria only, with the highest levels in the HIV/malaria group. In the malaria group as a whole, MPO, sCD14 and in particular sCD25 were correlated with disease severity. sCD163, sCD25 and in particular MPO correlated with the degree of parasitemia as assessed by qPCR. Patients with falciparum malaria also had signs of T-cell subset activation (i.e. increased granzyme B and CX3CL1) and T-cell exhaustion as assessed by high levels of TIM-3 particularly in patients co-infected with HIV. CONCLUSION: Our data support a marked immune activation in falciparum malaria involving all major leukocyte subsets with particular enhanced activation of neutrophils and T-cells in patients co-infected with HIV. Our findings also support a link between immune activation and immune exhaustion during falciparum malaria, particularly in relation to T-cell responses in patients co-infected with HIV

• Kvaslerud, Anette Borger; Hussain, Amjad Iqbal; Auensen, Andreas; Ueland, Thor; Michelsen, Annika & Pettersen, Kjell [Vis alle 10 forfattere av denne artikkelen] (2018). Prevalence and prognostic implication of iron deficiency and anaemia in patients with severe aortic stenosis. Open heart. ISSN 2053-3624. 5:e000901(2), s. 1–10. doi: 10.1136/openhrt-2018-000901. Fulltekst i vitenarkiv
• Steineger, Johan Edvard; Ueland, Thor; Aukrust, Pål; Michelsen, Annika; Osnes, Terje & Heimdal, Ketil Riddervold [Vis alle 7 forfattere av denne artikkelen] (2018). Pentraxin 3 level is elevated in hereditary hemorrhagic telangiectasia and reflects the severity of disease-associated epistaxis. The Laryngoscope. ISSN 0023-852X. 129(1), s. E44–E49. doi: 10.1002/lary.27548.
• Norum, Hilde Margrethe; Michelsen, Annika; Lekva, Tove; Arora, Satish; Otterdal, Kari & Olsen, Maria Belland [Vis alle 15 forfattere av denne artikkelen] (2018). Circulating delta-like Notch ligand 1 is correlated with cardiac allograft vasculopathy and suppressed in heart transplant recipients on everolimus-based immunosuppression. American Journal of Transplantation. ISSN 1600-6135. s. 1–11. doi: 10.1111/ajt.15141. Fulltekst i vitenarkiv Vis sammendrag

  Cardiac allograft vasculopathy (CAV) causes heart failure after heart transplantation (HTx), but its pathogenesis is incompletely understood. Notch signaling, possibly modulated by everolimus (EVR), is essential for processes involved in CAV. We hypothesized that circulating Notch ligands would be dysregulated after HTx. We studied circulating delta‐like Notch ligand 1 (DLL1) and periostin (POSTN) and CAV in de novo HTx recipients (n = 70) randomized to standard or EVR‐based, calcineurin inhibitor‐free immunosuppression and in maintenance HTx recipients (n = 41). Compared to healthy controls, plasma DLL1 and POSTN were elevated in de novo (P < .01; P < .001) and maintenance HTx recipients (P < .001; P < .01). Use of EVR was associated with a treatment effect for DLL1. For de novo HTx recipients, a change in DLL1 correlated with a change in CAV at 1 (P = .021) and 3 years (P = .005). In vitro, activation of T cells increased DLL1 secretion, attenuated by EVR. In vitro data suggest that also endothelial cells and vascular smooth muscle cells (VSMCs) could contribute to circulating DLL1. Immunostaining of myocardial specimens showed colocalization of DLL1 with T cells, endothelial cells, and VSMCs. Our findings suggest a role of DLL1 in CAV progression, and that the beneficial effect of EVR on CAV could reflect a suppressive effect on DLL1.

• Ueland, Thor; Kleveland, Ola; Michelsen, Annika; Wiseth, Rune; Damås, Jan Kristian & Aukrust, Pål [Vis alle 9 forfattere av denne artikkelen] (2018). Serum PCSK9 is modified by interleukin-6 receptor antagonism in patients with hypercholesterolaemia following non-ST-elevation myocardial infarction. Open heart. ISSN 2053-3624. 5(2). doi: 10.1136/openhrt-2017-000765. Fulltekst i vitenarkiv
• Dieset, Ingrid; Mørch, Ragni Helene; Hope, Sigrun; Hoseth, Eva Zsuzsanna; Reponen, Elina Johanna & Gran, Jon Michael [Vis alle 16 forfattere av denne artikkelen] (2018). An association between YKL-40 and type 2 diabetes in psychotic disorders. Acta Psychiatrica Scandinavica. ISSN 0001-690X. 139, s. 37–45. doi: 10.1111/acps.12971. Fulltekst i vitenarkiv
• Lekva, Tove; Godang, Kristin; Michelsen, Annika; Qvigstad, Elisabeth; Normann, Kjersti Ringvoll & Norwitz, Errol R. [Vis alle 11 forfattere av denne artikkelen] (2018). Prediction of gestational diabetes mellitus and pre-diabetes 5 years postpartum using 75 g oral glucose tolerance test at 14-16 Weeks' gestation. Scientific Reports. ISSN 2045-2322. 8:13392, s. 1–9. doi: 10.1038/s41598-018-31614-z. Fulltekst i vitenarkiv
• Ueland, Thor; Kleveland, Ola; Michelsen, Annika; Wiseth, Rune; Damås, Jan Kristian & Holven, Kirsten Bjørklund [Vis alle 10 forfattere av denne artikkelen] (2018). Serum lipoprotein(a) is not modified by interleukin-6 receptor antagonism or associated with inflammation in non-ST-elevation myocardial infarction. International Journal of Cardiology. ISSN 0167-5273. 274, s. 348–350. doi: 10.1016/j.ijcard.2018.06.093. Fulltekst i vitenarkiv
• Ueland, Thor; Åkerblom, Axel; Ghukasyan, Tatevik; Michelsen, Annika; Aukrust, Pål & Becker, Richard C. [Vis alle 13 forfattere av denne artikkelen] (2018). 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. Journal of the American Heart Association (JAHA). ISSN 2047-9980. 7(2). doi: 10.1161/JAHA.117.007009. Fulltekst i vitenarkiv
• Heldal, Torbjørn Fossum; Ueland, Thor; Jenssen, Trond Geir; Hartmann, Anders; Reisæter, Anna Varberg & Aukrust, Pål [Vis alle 8 forfattere av denne artikkelen] (2018). Inflammatory and related biomarkers are associated with post-transplant diabetes mellitus in kidney recipients: a retrospective study. Transplant International. ISSN 0934-0874. 31(5), s. 510–519. doi: 10.1111/tri.13116.
• Yardley, Marianne; Ueland, Thor; Aukrust, Pål; Michelsen, Annika; Bjørkelund, Elisabeth & Gullestad, Lars [Vis alle 7 forfattere av denne artikkelen] (2017). Immediate response in markers of inflammation and angiogenesis during exercise: a randomised cross-over study in heart transplant recipients. Open heart. ISSN 2053-3624. 4(2). doi: 10.1136/openhrt-2017-000635. Fulltekst i vitenarkiv
• Lekva, Tove; Michelsen, Annika; Aukrust, Pål; Roland, Marie Cecilie; Henriksen, Tore & Bollerslev, Jens [Vis alle 7 forfattere av denne artikkelen] (2017). CXC chemokine ligand 16 is increased in gestational diabetes mellitus and preeclampsia and associated with lipoproteins in gestational diabetes mellitus at 5 years follow-up. Diabetes & vascular disease research. ISSN 1479-1641. 14(6), s. 525–533. doi: 10.1177/1479164117728011.
• Lekva, Tove; Roland, Marie Cecilie; Michelsen, Annika; Friis, Camilla Margrethe; Aukrust, Pål & Bollerslev, Jens [Vis alle 8 forfattere av denne artikkelen] (2017). Large reduction in adiponectin during pregnancy is associated with large-for-gestational-age newborns. Journal of Clinical Endocrinology and Metabolism (JCEM). ISSN 0021-972X. 102(7), s. 2552–2559. doi: 10.1210/jc.2017-00289.
• Ueland, Thor; Laugsand, Lars Erik; Vatten, Lars Johan; Janszky, Imre; Platou, Carl Geoffrey Parrinder & Michelsen, Annika [Vis alle 9 forfattere av denne artikkelen] (2017). Extracellular matrix markers and risk of myocardial infarction: The HUNT Study in Norway. European Journal of Preventive Cardiology (EJPC). ISSN 2047-4873. 24(11), s. 1161–1167. doi: 10.1177/2047487317703826.
• Hoseth, Eva Zsuzsanna; Ueland, Thor; Dieset, Ingrid; Birnbaum, Rebecca; Shin, Joo Heon & Kleinman, Joel Edward [Vis alle 19 forfattere av denne artikkelen] (2017). A study of TNF pathway activation in schizophrenia and bipolar disorder in plasma and brain tissue. Schizophrenia Bulletin. ISSN 0586-7614. 43(4), s. 881–890. doi: 10.1093/schbul/sbw183. Fulltekst i vitenarkiv
• Ueland, Thor; Laugsand, Lars Erik; Vatten, Lars Johan; Janszky, Imre; Platou, Carl Geoffrey Parrinder & Michelsen, Annika [Vis alle 9 forfattere av denne artikkelen] (2017). Monocyte/macrophage and T cell activation markers are not independently associated with MI risk in healthy individuals - results from the HUNT Study. International Journal of Cardiology. ISSN 0167-5273. 243, s. 502–504. doi: 10.1016/j.ijcard.2017.05.106. Fulltekst i vitenarkiv
• Abraityte, Judita Aurelija; Lunde, Ida Gjervold; Askevold, Erik Tandberg; Michelsen, Annika; Christensen, Geir Arve & Aukrust, Pål [Vis alle 14 forfattere av denne artikkelen] (2017). Wnt5a is associated with right ventricular dysfunction and adverse outcome in dilated cardiomyopathy. Scientific Reports. ISSN 2045-2322. 7(1). doi: 10.1038/s41598-017-03625-9. Fulltekst i vitenarkiv
• Abraityte, Judita Aurelija; Vinge, Leif Erik; Askevold, Erik Tandberg; Lekva, Tove; Michelsen, Annika & Ranheim, Trine [Vis alle 16 forfattere av denne artikkelen] (2017). Wnt5a is elevated in heart failure and affects cardiac fibroblast function. Journal of Molecular Medicine. ISSN 0946-2716. 95(7), s. 767–777. doi: 10.1007/s00109-017-1529-1.
• Norum, Hilde Margrethe; Broch, Kaspar; Michelsen, Annika; Lunde, Ida Gjervold; Lekva, Tove & Abraityte, Judita Aurelija [Vis alle 14 forfattere av denne artikkelen] (2017). The Notch Ligands DLL1 and Periostin Are Associated with Symptom Severity and Diastolic Function in Dilated Cardiomyopathy. Journal of Cardiovascular Translational Research (JCTR). ISSN 1937-5387. s. 1–10. doi: 10.1007/s12265-017-9748-y.
• Shahini, Negar; Michelsen, Annika; Nilsson, Per; Ekholt, Karin; Gullestad, Lars & Broch, Kaspar [Vis alle 12 forfattere av denne artikkelen] (2017). The alternative complement pathway is dysregulated in patients with chronic heart failure. Scientific Reports. ISSN 2045-2322. 7. doi: 10.1038/srep42532. Fulltekst i vitenarkiv
• Lekva, Tove; Michelsen, Annika; Aukrust, Pål; Henriksen, Tore; Bollerslev, Jens & Ueland, Thor (2017). Leptin and adiponectin as predictors of cardiovascular risk after gestational diabetes mellitus. Cardiovascular Diabetology. ISSN 1475-2840. 16:5(1), s. 1–10. doi: 10.1186/s12933-016-0492-4. Fulltekst i vitenarkiv
• Holte, Espen; Kleveland, Ola; Ueland, Thor; Kunszt, Gabor; Bratlie, Marte & Broch, Kaspar [Vis alle 14 forfattere av denne artikkelen] (2017). Effect of interleukin-6 inhibition on coronary microvascular and endothelial function in myocardial infarction. Heart. ISSN 1355-6037. 103(19), s. 1521–1527. doi: 10.1136/heartjnl-2016-310875.
• Eide, Ivar Anders; Åsberg, Anders; Svensson, My Hanna Sofia; Ueland, Thor; Mollnes, Tom Eirik & Hartmann, Anders [Vis alle 12 forfattere av denne artikkelen] (2017). Plasma Levels of Marine n-3 Fatty Acids Are Inversely Correlated With Proinflammatory Markers sTNFR1 and IL-6 in Renal Transplant Recipients. Journal of renal nutrition. ISSN 1051-2276. 27(3), s. 161–168. doi: 10.1053/j.jrn.2016.09.008. Vis sammendrag

  OBJECTIVE: Marine n-3 polyunsaturated fatty acids (PUFAs) exert potential anti-inflammatory effects and might improve long-term outcomes after renal transplantation. We assessed associations between plasma phospholipid levels of marine n-3 PUFAs and plasma inflammatory biomarkers 10 weeks after renal transplantation. DESIGN: Cross-sectional single-center study. SUBJECTS: A study population of 861 renal transplant recipients transplanted at Oslo University Hospital between 2007 and 2011. METHODS AND MAIN OUTCOME MEASURE: Plasma phospholipid fatty acids were determined by gas chromatography. Marine n-3 PUFA levels were defined as the sum of eicosapentaenoic acid, docosahexaenoic acid, and docosapentaenoic acid levels in weight percentage of total plasma phospholipid fatty acids. Plasma inflammatory biomarkers were measured by enzyme immunoassays. We used multivariable linear regression analysis to assess associations between levels of marine n-3 PUFAs and inflammatory biomarkers in plasma. RESULTS: Plasma marine n-3 PUFA levels were inversely associated with plasma levels of proinflammatory biomarkers soluble tumor necrosis factor receptor 1 (standardized regression coefficient -0.11, P < .001) and interleukin-6 (standardized regression coefficient -0.09, P = .01). In contrast, there was no association between plasma levels of marine n-3 PUFAs and the anti-inflammatory mediator interleukin-10. CONCLUSIONS: In this renal transplant cohort, inverse associations between plasma levels of marine n-3 PUFAs and markers of inflammation were demonstrated.

• Laugsand, Lars Erik; Åsvold, Bjørn Olav; Vatten, Lars Johan; Janszky, Imre; Platou, Carl Geoffrey Parrinder & Michelsen, Annika [Vis alle 9 forfattere av denne artikkelen] (2016). Circulating PCSK9 and risk of myocardial infarction: The HUNT Study in Norway. JACC: Basic to Translational Science. ISSN 2452-302X. 1(7), s. 568–575. doi: 10.1016/j.jacbts.2016.06.007.

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• Halvorsen, Bente; Viermyr, Hans-Kittil; Ueland, Thor; Sagen, Ellen Lund; Michelsen, Annika Elisabet & Bjerkeli, Vigdis [Vis alle 14 forfattere av denne artikkelen] (2024). IL-22 is increased in hospitalized patients with COVID-19 and associates with cardiac involvement. Journal of Infection. ISSN 0163-4453. 89(1). doi: 10.1016/j.jinf.2024.106176.
• Jørgensen, Silje Fjellgård; Macpherson, Magnhild Eide; Bjørnetrø, Tonje; Holm, Kristian; Kummen, Martin & Rashidi, Azita [Vis alle 18 forfattere av denne artikkelen] (2024). Retraction to: Rifaximin alters gut microbiota profile, but does not affect systemic inflammation - a randomized controlled trial in common variable immunodeficiency (Scientific Reports, (2019), 9, 1, (167), 10.1038/s41598-018-35367-7). Scientific Reports. ISSN 2045-2322. 14(1). doi: 10.1038/s41598-024-54117-6.
• Nilsen, Dennis WT; Aarsetøy, Reidun; Ueland, Thor; Aukrust, Pål; Michelsen, Annika Elisabet & Pønitz, Volker [Vis alle 9 forfattere av denne artikkelen] (2023). Circulation 2023;148:A14503: Chemokine Ligand 18 (CCL18) is a Long-Term Predictor of All-Cause Mortality, but Did Not Predict CVD Events. Vis sammendrag

  Circulation 2023 (Nov.): 148 (Suppl. 1), Abstract 14503. . Chemokines mediate leukocyte recruitment and activation. Chemokine ligand 18 (CCL18) is mainly expressed by a broad range of cells such as monocytes/macrophages and dendritic cells. It is highly expressed in chronic inflammatory diseases, and locally in atherosclerotic plaques, particularly at sites of reduced stability. Circulating CCL18 levels are transiently elevated in patients admitted with unstable angina pectoris, but data on myocardial infarction (MI) are scarce. Aim: To assess the utility of CCL18 as a prognostic marker of CVD in patients hospitalized for chest pain of suspected coronary origin. Methods: The population consisted of 871 consecutive patients (ClinicalTrials.gov Identifier: NCT00521976). Stepwise Cox regression models, applying continuous loge-transformed values, were fitted for each of the biomarkers with all-cause mortality and cardiac death within 24-months and all-cause mortality within median 7 years (y) as the dependent variables, adding an analysis of 1) all-cause mortality or MI, and 2) all-cause mortality or MI or stroke at 7 y follow up (FU). The hazard ratio (HR) (95% CI) was assessed in a univariate and multivariable model, adjusting for traditional clinical cardiovascular risk factors, adding BNP, hsCRP, and TnT. Results: Plasma samples from 849 patients were available. By 24 months FU, 138 (15.8%) patients had died; 86 were cardiac deaths. The univariate analysis showed a positive, significant association between CCL18 and total death [HR 1.55 (95% 1.30-1.83), p=0.000], and for cardiac death [HR 1.32 (95% 1.06-1.64), p=0.013]. Applying multivariable analysis, the associations were no longer significant. At 7 y FU, a total of 332 (38.1%) patients had died. After multivariable adjustment, CLL18 was independently associated with all-cause mortality [HR 1.14 (95% CI, 1.01-1.29), p=0.030], but not for MI (n=203) or stroke (n=55). The positive association between CCL18 and all-cause mortality was lost when combined with CVD events; all-cause mortality or MI (n=404, p=0.75), and all-cause mortality or MI or stroke (n=422, p=0.79). Conclusions: CCL18 predicts long-term all-cause mortality, but had no independent prognostic bearing on short-term cardiac death and CVD events during long-term FU.

• Nilsen, Dennis WT; Pønitz, Volker; Aarsetøy, Reidun; Ueland, Thor; Aukrust, Pål & Michelsen, Annika Elisabet [Vis alle 9 forfattere av denne artikkelen] (2023). Circulation 2023; 148: Suppl_17 (Nov.). Abstract 14288. α1-Antichymotrypsin Complex (SERPINA3) is an Independent Predictor of Long-Term All-Cause Mortality, but Did Not Predict CVD Events. Vis sammendrag

  Circulation 2023:148, Suppl_17: SERPINA3 is an acute phase protein triggered by inflammation. It inhibits neutrophil cathepsin which cleaves protease-activated receptor 4 (PAR-4) via a thrombin-independent pathway, and mast cell chymase which mediates the production of angiotensin-II via an ACE-independent pathway. SERPINA3 is upregulated after an acute myocardial infarction (MI), but data on its long-term prognostic value in MI patients are scarce.Aim: To assess the utility of SERPINA3 as a prognostic marker in patients hospitalized for chest pain of suspected coronary origin.Methods: A total of 871 consecutive patients were included (ClinicalTrials.gov Identifier: NCT00521976). Stepwise Cox regression models, applying continuous loge-transformed values, were fitted for each of the biomarkers with all-cause mortality and cardiac death within median 24-months (mo) and all-cause mortality within median 7 years (y) as the dependent variables, adding an analysis of 1) all-cause mortality or MI, and 2) all-cause mortality or MI or stroke at 7 y follow up (FU). The hazard ratio (HR) (95% CI) was assessed in a univariate and multivariable model, adjusting for traditional clinical cardiovascular risk factors, adding BNP, hsCRP, TnT.Results: Plasma samples from 847 patients were available. At 24 mo FU, 138 (15.8%) patients had died, of which 86 were cardiac deaths. The univariate analysis showed a positive, significant association between SERPINA3 and total death [HR 1.42 (95% 1.19-1.68), p =0.000], but was not significant for cardiac death. Associations after multivariable adjustment were statistically non-significant. At 7 y FU, 332 (38.1%) patients had died. After adjustment, SERPINA3 was independently associated with all-cause mortality [HR 1.14 (95% CI, 1.02-1.28), p=0.022], but not for MI (n=203), and stroke (n=55), respectively, and remained essentially unaffected for all-cause mortality or MI combined (n=404) [HR 1.12 (95% CI, 1.01-1.24), p=0.031], slightly weakened when stroke also was added (n=422) [HR 1.10 (95% CI, 1.00-1.22), p=0.060].Conclusions: SERPINA3 predicts long-term all-cause mortality, but had no prognostic bearing on short-term cardiac death. Introducing non-fatal CVD events during long-term FU did not improve its prognostic value.

• Ueland, Thor; Äikäs, Lauri A.O.; Dahl, Tuva Børresdatter; Gregersen, Ida; Olsen, Maria Belland & Michelsen, Annika Elisabet [Vis alle 20 forfattere av denne artikkelen] (2023). Low-density lipoprotein particles carrying proinflammatory proteins with altered aggregation pattern detected in COVID-19 patients 3 months after hospitalization. Journal of Infection. ISSN 0163-4453. 86(5), s. 489–492. doi: 10.1016/j.jinf.2023.02.024.
• Nilsen, Dennis W.T.; Røysland, Michelle; Ueland, Thor; Aukrust, Pål; Michelsen, Annika Elisabet & Staines, Harry [Vis alle 10 forfattere av denne artikkelen] (2022). Circulation 2022;146:A10315.The Effect of Protease-Activated Receptor-1 Inhibition With Vorapaxar in Post-mi and Nstemi Patients on Selected Biomarkers Reflecting Endothelial Function . Vis sammendrag

  Circulation 2022;146:A10315 Introduction: Biomarker research related to protease-activated receptor-1 (PAR-1) inhibition with vorapaxar in humans has essentially focused on platelets. Follow-up (FU) time has been short, whereas in the current study, focus has been on endothelial function during both short- and long-term PAR-1 inhibition. Aim: To assess short- and long-term effects of vorapaxar (V) as compared to Placebo (PL) on the following biomarkers: Angiopoietin-2 (ANGPT2), Angiopoietin-like 4 (ANGPTL4), VEGF, ICAM-1, VCAM-1, E-Selectin (ESEL), von Willebrand Factor (VWF), Thrombomodulin (TM), PAI-1 and PAI-2. Methods: In an independent collective subproject performed in Norway, post-MI patients at steady state were recruited from the “Trial to Assess the Effects of Vorapaxar in Preventing Heart Attack and Stroke in Patients with Atherosclerosis” (TRA2ᵒP-TIMI 50) and NSTEMI patients were recruited from the “Thrombin Receptor Antagonist for Clinical Event Reduction in acute coronary syndrome” (TRACER) trial. Biomarkers were measured in duplicate by enzyme immunoassays (EIA) in citrated plasma at one month follow-up and at study completion (median 2.3 years) for subjects recruited from both trials. Results: Biomarkers were measured in 265 consecutive patients [age median 62.0 years (Q1-Q3: 55.0-68.0 years), males 83%] with at least one change from baseline value. Among these, biomarkers were available at both short- and long-term follow-up in 221 subjects. ANGPT2 increased significantly in V as compared to PL at 1-month follow-up in the total population (p=0.034), and in males in both post-MI (p=0.031) and NSTEMI subjects (p=0.012), respectively. ANGPTL4 increased (p=0.028) and PAI-2 decreased (p=0.025) significantly in the total population in favor of V at final FU. In the total post-MI subgroup and among males of that group, a short-term significant increase in ESEL in favor of V was observed, p=0.029 and p=0.018, respectively. Also, a transient significant increase in VWF (p=0.032) in favor of V was seen at one month in NSTEMI patients. Conclusions: Significant changes suggesting potential harmful effects in some biomarkers were observed during 1-month and long-term PAR-1 inhibition as compared to placebo in post-MI and acute coronary syndrome patients.

• Gregersen, Ida; Ueland, Thor; Holter, Jan Cato; Olsen, Maria Belland; Michelsen, Annika Elisabet & Murphy, Sarah L [Vis alle 22 forfattere av denne artikkelen] (2022). CXCL16 associates with adverse outcome and cardiac involvement in hospitalized patients with Covid-19. Journal of Infection. ISSN 0163-4453. 85(6), s. 735–738. doi: 10.1016/j.jinf.2022.09.029.
• Aarsetøy, Reidun; Ueland, Thor; Aukrust, Pål; Michelsen, Annika; Pønitz, Volker & Andersen, Trygve Brugger [Vis alle 10 forfattere av denne artikkelen] (2020). Angiopoietin-like 4 protein is a long-term predictor of outcome in chest-pain patients with suspected acute coronary syndrome. ESC 365 Library. Vis sammendrag

  Introduction: Angiopoietin-like 4 protein (ANGPTL4) has multiple physiological functions including modulation of angiogenesis, vascular permeability and lipid-metabolism. Acting as an inhibitor of lipoprotein lipase, ANGPTL4 has previously been found to be associated with lipid levels and risk of coronary artery disease. Purpose: To assess the prognostic value of ANGPTL4 for long-term outcome, in addition to conventional clinical risk factors, in chest-pain patients admitted with clinically suspected acute coronary syndrome (ACS). Methods: 1853 patients from Norway and Northern-Argentina were consecutively included in this prospective 2-center cohort study. ANGPTL4 concentrations were measured in 1829 admission-samples by enzyme immunoassay. Data were pooled for analysis. Multivariable Cox proportional-hazards models were fitted for the analysis of all-cause mortality, cardiac death and sudden cardiac death (SCD) within 24-months, comparing event rates across ANGPTL4-quartiles (Q1-4). Of patients with suspected ACS, 845 had a troponin T (TnT) value above the detection-limit. Subgroup analysis was performed for all-cause mortality in patients stratified according to TnT release >/≤ 0.01 ng/mL. Results: During 24-months follow-up, 254 patients (13.9%) died, of which 150 (8.2%) suffered cardiac death and 76 (4.2%) SCD. Patients who died had significantly higher admission-levels of ANGPTL4 compared to long-term survivors [4.99 (3.54 – 8.37) ng/mL versus 3.18 (2.14 – 4.78) ng/mL (median, 25 and 75% percentiles), p < 0.001]. A stepwise increase in risk of all-cause death was seen with increasing quartiles of ANGPTL4, Figure 1. For cardiac death, ANGPTL4-levels in Q4 [Hazard Ratio (HR) 2.86 (95% confidence interval (CI); 1.10 – 7.45), p = 0.031] as compared to Q1 were found to be an independent predictor of outcome. Similar results were seen for SCD in adjusted analysis for ANGPTL4-Q4 [HR 7.37 (95% CI; 1.75 – 31.1), p = 0.007] as compared to Q1. In subgroup analysis, ANGPTL4 concentrations in the highest quartile were significantly associated with increased risk of all-cause mortality in patients with TnT-release [HR 2.07 (95% CI, 1.06 – 4.02), p = 0.032], but not in patients without TnT-release. Conclusion: High admission-levels of ANGPTL4 were found to be an independent long-term predictor of all-cause mortality, cardiac death and SCD in patients with suspected ACS.

• Aarsetøy, Reidun; Ueland, Thor; Aukrust, Pål; Michelsen, Annika; Pønitz, Volker & Andersen, Trygve Brugger [Vis alle 9 forfattere av denne artikkelen] (2020). Complement component-7 is a long-term predictor of all-cause mortality in chest-pain patients with suspected acute coronary syndrome. ESC 365 Library . Vis sammendrag

  Introduction: The complement cascade is an important component of the innate immune system. Complement activation plays a major role in chronic inflammation and has been associated with atherosclerosis, atherosclerotic plaque destabilization and increased risk of cardiovascular events. Complement component 7 (C7) binds C5bC6 complex being part of the terminal complement complex (TCC/C5b-9). Purpose: To investigate the prognostic utility of complement C7 for long-term outcome in patients with suspected acute coronary syndrome (ACS). Methods: Complement C7 plasma-levels were measured by enzyme immunoassay in admission samples from 1823 patients included in a transatlantic prospective cohort study, which consecutively included hospital admitted chest-pain patients with clinically suspected ACS from South-Western Norway and Northern Argentina. Data were pooled for analysis. Univariable- and multivariable Cox proportional-hazards models were fitted for the analysis of all-cause mortality, cardiac death and sudden cardiac death (SCD) within 24 months, applying both quartiles (Q1-4) and loge-transformed continuous values of complement C7. Results: There were 253 (13.9%) deaths, of which 150 (8.2%) were categorized as cardiac death and 76 (4.2%) as SCD. Complement C7 levels were significantly higher in patients who died as compared to long-term survivors [176.9 (142.1 – 228.7) µg/mL versus 139.8 (110.6 – 179.7) µg/mL (median, 25 and 75% percentile), p < 0.001], and were significantly associated with 24-month survival [log rank p < 0.001 for all-cause mortality and cardiac death, log rank p = 0.035 for SCD]. In univariable analysis, patients with complement C7-concentrations in the highest quartiles had significantly increased risk of all-cause mortality (Figure 1), cardiac death [Q4: Hazard Ratio (HR) 4.58 (95% confidence interval (CI); 2.65 – 7.92), p < 0.001, Q3: HR 2.69 (95% CI; 1.51 – 4.80), p = 0.001] and SCD [Q4: HR 2.83 (95% CI; 1.36 – 5.90), p = 0.005, Q3: HR 2.33 (95% CI; 1.10 – 4.92), p = 0.027] compared to patients in the lowest quartile (Q1). After adjusting for conventional clinical risk factors for coronary heart disease, complement C7-concentrations in Q4 [HR 2.09 (95% CI; 1.23 – 3.57), p = 0.007] and Q3 [HR 2.21 (95% CI; 1.29 – 3.81), p = 0.004] remained significantly associated with all-cause mortality, reproduced using loge-transformed continuous values. Conclusion: High levels of complement C7 were found to independently predict long-term all-cause mortality in chest-pain patients with clinically suspected ACS.

• Aarsetøy, Reidun; Ueland, Thor; Aukrust, Pål; Michelsen, Annika; Pønitz, Volker & Andersen, Trygve Brugger [Vis alle 8 forfattere av denne artikkelen] (2020). Angiopoietin-2 is a long-term predictor of all-cause mortality, cardiac death and sudden cardiac death in chest-pain patients with suspected acute coronary syndrome. Vis sammendrag

  Background: Angiopoietin-2 (ANGPT2) is an important regulator of angiogenesis. Higher levels of ANGPT2 have been found to be associated with an adverse cardiovascular risk factor profile potentially reflecting maladaptive vascular remodelling including atherosclerotic plaque destabilization. Purpose: To evaluate the prognostic utility of ANGPT2 added to conventional clinical risk factors for coronary heart disease, including B-type natriuretic peptide (BNP), troponin T (TnT) and C-reactive protein (CRP), in patients with suspected acute coronary syndrome (ACS). Methods: 871 chest-pain patients with clinically suspected ACS from South-Western Norway and 982 patients from Northern Argentina were consecutively included in a prospective transatlantic cohort study. We measured plasma-concentrations of ANGPT2 in admission-samples from 1815 patients by enzyme immunoassay. Univariable- and multivariable Cox proportional-hazards models, applying both loge-transformed continuous values and quartiles (Q1-4), were fitted for the analysis of all-cause mortality, cardiac death and sudden cardiac death (SCD) within 24-month follow-up. Of the patients with suspected ACS, 838 patients had TnT release above the detection-limit of 0.01 ng/mL. We performed subgroup analysis for all-cause mortality in patients with and without TnT release. Results: Median age in the total population was 66.0 (Q1-Q3; 55.0 – 76.8) years and 60.4% were males. At 24-month follow-up, 254 patients (14%) had died, of which 150 (8.3%) suffered cardiac death and 76 (4.2%) SCD. ANGPT2 levels were significantly higher in patients who died compared to long-term survivors [3.87 (2.40 – 7.54) ng/mL versus 2.11 (1.48 – 3.22) ng/mL (median, 25 and 75% percentiles), p < 0.001]. In multivariable analysis, ANGPT2 concentrations in the highest quartile (Q4) as compared to the lowest (Q1) were significantly associated with all-cause mortality [Hazard Ratio (HR) 1.96 (95% confidence interval (CI); 1.12 – 3.42), p = 0.018) and cardiac death [HR 2.23 (95% CI; 1.01 – 4.92), p = 0.047] at 24-month follow-up. For SCD, ANGPT2 concentrations in both Q3 [HR 3.59 (95% CI; 1.05 -12.3), p = 0.041] and Q4 [HR 3.81 (95% CI; 1.12 – 12.9), p = 0.032] as compared to Q1 were significantly related to outcome. These results were confirmed using loge-transformed continuous values of ANGPT2. ANGPT2 was also an independent predictor of all-cause mortality in both patients with and without TnT release. For patients with TnT > 0.01 ng/mL, HR for ANGPT2 in Q4 as compared to Q1 was 2.77 (95% CI; 1.41 – 5.44), p = 0.003. For patients with TnT ≤ 0.01, HR for ANGPT2-Q4 was 2.67 (95% CI; 1.08 – 6.62), p = 0.034. Conclusion: High levels of ANGPT2 were found to independently predict all-cause mortality, cardiac death and sudden cardiac death in chest-pain patients with suspected ACS, irrespective of clinical demographics, troponin-release, CRP and BNP.

• Siljan, William Ward; Holter, Jan Cato; Michelsen, Annika Elisabet; Nymo, Ståle Haugset; Norseth, Jon & Husebye, Einar [Vis alle 11 forfattere av denne artikkelen] (2018). Procalcitonin has wider applicability in community-acquired pneumonia than other biomarkers. European Respiratory Journal. ISSN 0903-1936. doi: 10.1183/13993003.congress-2018.PA2622.
• Lunde, Ngoc Nguyen Dieu; Gregersen, Ida; Holm, Sverre; Michelsen, Annika; Sporsheim, Bjørnar & Espevik, Terje [Vis alle 9 forfattere av denne artikkelen] (2018). Platelet-derived legumain, a cysteine protease involved in atherosclerosis .

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