• Adipokines and macrophage markers during pregnancy?Possible role for sCD163 in prediction and progression of gestational diabetes mellitus 

      Ueland, Thor; Michelsen, Annika; Aukrust, Pål; Henriksen, Tore; Bollerslev, Jens; Lekva, Tove (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-12-13)
      <i>Aims</i> - The risk of gestational diabetes mellitus (GDM) is increased in overweight and obese women potentially involving secreted mediators from adipose tissue. Our main aim was to evaluate if circulating adipokines and monocyte/macrophage markers were dysregulated in GDM and the influence body mass and indices of glucose metabolism had on this association. We further explored if early detection ...
    • Circulating delta-like Notch ligand 1 is correlated with cardiac allograft vasculopathy and suppressed in heart transplant recipients on everolimus-based immunosuppression 

      Norum, Hilde Margrethe; Michelsen, Annika; Lekva, Tove; Arora, Satish; Otterdal, Kari; Olsen, Maria Belland; Kong, Xiang Yi; Gude, Einar; Andreassen, Arne K.; Solbu, Dag; Karason, Kristjan; Dellgren, Göran; Gullestad, Lars; Aukrust, Pål; Ueland, Thor (Journal article; Tidsskriftartikkel, 2018-10-12)
      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) ...
    • Distinct patterns of soluble leukocyte activation markers are associated with etiology and outcomes in precapillary pulmonary hypertension 

      Lekva, Tove; Gullestad, Lars; Broch, Kaspar; Aukrust, Pål; Andreassen, Arne K.; Ueland, Thor (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-29)
      Activation of inflammatory processes has been identified as a major driver of pulmonary vascular remodeling that contributes to the development of precapillary pulmonary hypertension (PH). We hypothesized that circulating markers of leukocyte activation, reflecting monocytes/macrophages (sCD163, sCD14), T-cells (sCD25) and neutrophils (myeloperoxidase [MPO], neutrophil gelatinase-associated lipocalin ...
    • Dysregulated non-coding telomerase RNA component and associated exonuclease XRN1 in leucocytes from women developing preeclampsia-possible link to enhanced senescence 

      Lekva, Tove; Roland, M.C.P.; Estensen, M.E.; Norwitz, Errol R.; Tilburgs, T.; Henriksen, Tore; Bollerslev, Jens; Normann, K.R.; Magnus, P.; Olstad, Ole Kristoffer; Aukrust, Pål; Ueland, T. (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-05)
      Senescence in placenta/fetal membranes is a normal phenomenon linked to term parturition. However, excessive senescence which may be induced by telomere attrition, has been associated with preeclampsia (PE). We hypothesized that the telomerase complex in peripheral blood mononuclear cells (PBMC) and circulating telomere associated senescence markers would be dysregulated in women with PE. We measured ...
    • Elevated cholesteryl ester transfer protein activity early in pregnancy predicts prediabetes 5 years later 

      Ueland, Thor; Roland, Marie Cecilie; Michelsen, Annika; Godang, Kristin; Aukrust, Pål; Henriksen, Tore; Bollerslev, Jens; Lekva, Tove (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-29)
      <i>Context</i> - Cholesteryl ester transfer protein (CETP) regulates high-density lipoprotein (HDL) cholesterol levels and interaction between glucose, and HDL metabolism is central in the development of diabetes.<p> <p><i>Objective</i> - We hypothesized that CETP levels would be regulated in diabetic pregnancies. We tested the hypothesis by evaluating CETP activity measured multiple times during ...
    • Hip Structure Analyses in Acromegaly: Decrease of Cortical Bone Thickness After Treatment: A Longitudinal Cohort Study 

      Godang, Kristin; Lekva, Tove; Normann, Kjersti Ringvoll; Olarescu, Nicoleta Cristina; Øystese, Kristin Astrid; Kolnes, Anders Jensen; Ueland, Thor; Bollerslev, Jens; Heck, Ansgar (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-03)
      Long‐standing growth hormone (GH) excess causes the skeletal clinical signs of acromegaly with typical changes in bone geometry, including increased cortical bone thickness (CBT). However, a high prevalence and incidence of vertebral fractures has been reported. The aim of this study was to assess the course of cortical bone dimensions in the hip by comparing patients with acromegaly and clinically ...
    • Increased circulating IL-18 levels in severe mental disorders indicate systemic inflammasome activation 

      Szabo, Attila; O'Connell, Kevin Sean; Ueland, Thor; Sheikh, Mashhood Ahmed; Agartz, Ingrid; Andreou, Dimitrios; Aukrust, Pål; Boye, Birgitte; Bøen, Erlend; Drange, Ole Kristian; Elvsåshagen, Torbjørn; Engh, John; Hope, Sigrun; Høegh, Margrethe Collier; Joa, Inge; Johnsen, Erik; Kroken, Rune Andreas; Lagerberg, Trine Vik; Lekva, Tove; Malt, Ulrik Fredrik; Melle, Ingrid; Morken, Gunnar; Nærland, Terje; Steen, Vidar Martin; Sørensen, Kjetil; Wedervang-Resell, Kirsten; Weibell, Melissa Anne Elin Authen; Westlye, Lars Tjelta; Steen, Nils Eiel; Andreassen, Ole; Djurovic, Srdjan (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-07)
      Background -Schizophrenia (SCZ) and bipolar disorder (BD) are severe mental illnesses (SMI) that are part of a psychosis continuum, and dysregulated innate immune responses have been suggested to be involved in their pathophysiology. However, disease-specific immune mechanisms in SMI are not known yet. Recently, dyslipidemia has been linked to systemic inflammasome activation, and elevated atherogenic ...
    • Increased circulating IL-18 levels in severe mental disorders indicate systemic inflammasome activation 

      Szabo, Attila; O’Connell, Kevin; Ueland, Thor; Ahmed, Mashhood Sheikh; Agartz, Ingrid; Andreou, Dimitrios; Aukrust, Pål; Boye, Birgitte; Bøen, Erlend; Drange, Ole Kristian; Elvsåshagen, Torbjørn; Engh, John Abel; Hope, Sigrun; Høegh, Margrethe Collier; Joa, Inge; Johnsen, Erik; Kroken, Rune Andreas; Lagerberg, Trine Vik; Lekva, Tove; Malt, Ulrik Fredrik; Melle, Ingrid; Morken, Gunnar; Nærland, Terje; Steen, Vidar Martin; Sørensen, Kjetil; Wedervang-Resell, Kirsten; Auten Weibell, Melissa; Westlye, Lars Tjelta; Steen, Nils Eiel; Andreassen, Ole; Djurovic, Srdjan (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-07)
      Background - Schizophrenia (SCZ) and bipolar disorder (BD) are severe mental illnesses (SMI) that are part of a psychosis continuum, and dysregulated innate immune responses have been suggested to be involved in their pathophysiology. However, disease-specific immune mechanisms in SMI are not known yet. Recently, dyslipidemia has been linked to systemic inflammasome activation, and elevated atherogenic ...
    • Increased Interleukin 18 Activity in Adolescents With Early-Onset Psychosis Is Associated With Cortisol and Depressive Symptoms 

      Wedervang-Resell, Kirsten; Friis, Svein; Lonning, Vera Louise Hiorth; Smelror, Runar; Johannessen, Cecilie Haggag; Reponen, Elina Johanna; Lyngstad, Siv Hege; Lekva, Tove; Aukrust, Pål; Ueland, Thor; Andreassen, Ole Andreas; Agartz, Ingrid; Myhre, Anne Margrethe (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-14)
      <i>Objective</i> - Evidence indicates that the pathophysiology of adult psychosis involves immune dysregulation, but its associations with stress are often not considered. The inflammatory cytokine interleukin (IL)-18, which is elevated in adult schizophrenia, is suggested to be sensitive to stress. We compared the associations of IL-18 with cortisol and clinical variables in adolescents with ...
    • 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 ...
    • Markers of cellular senescence is associated with persistent pulmonary pathology after COVID-19 infection 

      Lekva, Tove; Ueland, Thor; Halvorsen, Bente; Murphy, Sarah Louise Mikalsen; Dyrhol-Riise, Anne Ma; Tveita, Anders Aune; Finbråten, Ane-Kristine; Mathiessen, Alexander; Muller, Karl Erik; Aaløkken, Trond Mogens; Skjønsberg, Ole Henning; Lerum, Tøri Vigeland; Aukrust, Pål; Dahl, Tuva Børresdatter (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-19)
      Background: The lungs are the organ most likely to sustain serious injury from coronavirus disease 2019 (COVID-19). However, the mechanisms for long-term complications are not clear. Patients with severe COVID-19 have shorter telomere lengths and higher levels of cellular senescence, and we hypothesized that circulating levels of the telomere-associated senescence markers chitotriosidase, ...
    • Platelet and mitochondrial RNA is decreased in plasma-derived extracellular vesicles in women with preeclampsia—an exploratory study 

      Lekva, Tove; Sundaram, Arvind; Roland, Marie Cecilie; Åsheim, June; Michelsen, Annika Elisabet; Norwitz, Errol R.; Aukrust, Pål; Gilfillan, Gregor; Ueland, Thor (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-23)
      Background - Circulating extracellular vesicles (EVs) are increased in preeclampsia (PE) and are associated with severity and progression. We examined in this exploratory cohort study if the mRNAs and long noncoding RNAs (lncRNAs) in plasma-derived EVs were dysregulated in PE compared to normal pregnancy and display different temporal patterns during gestation.<p> <p>Methods - We isolated EVs ...
    • Prediction of gestational diabetes mellitus and pre-diabetes 5 years postpartum using 75 g oral glucose tolerance test at 14-16 Weeks' gestation 

      Lekva, Tove; Godang, Kristin; Michelsen, Annika E.; Qvigstad, Elisabeth; Normann, Kjersti R.; Norwitz, Errol R.; Tore, Henriksen; Bollerslev, Jens; Roland, Marie; Ueland, Thor (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-06)
      Early detection and treatment of women at risk for gestational diabetes mellitus (GDM) could improve perinatal and long-term outcomes in GDM women and their offspring. We explored if a 75 g oral glucose tolerance test (OGTT) at 14-16 weeks of gestation could identify women who will (1) develop GDM or give birth to large-for-gestational-age (LGA) babies in 1031 pregnant women from the STORK study ...
    • Rifaximin alters gut microbiota profile, but does not affect systemic inflammation - a randomized controlled trial in common variable immunodeficiency 

      Jørgensen, Silje Fjellgård; Macpherson, Magnhild Eide; Bjørnetrø, Tonje; Holm, Kristian; Kummen, Martin; Rashidi, Azita; Michelsen, Annika; Lekva, Tove; Halvorsen, Bente; Trøseid, Marius; Mollnes, Tom Eirik; Berge, Rolf Kristian; Yndestad, Arne; Ueland, Thor; Karlsen, Tom Hemming; Aukrust, Pål; Hov, Johannes Espolin Roksund; Fevang, Børre (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-17)
      Common variable immunodeficiency (CVID) patients have reduced gut microbial diversity compared to healthy controls. The reduced diversity is associated with gut leakage, increased systemic inflammation and ten “key” bacteria that capture the gut dysbiosis (dysbiosis index) in CVID. Rifaximin is a broad-spectrum non-absorbable antibiotic known to reduce gut leakage (lipopolysaccharides, LPS) in liver ...
    • Secreted wnt antagonists in scrub typhus 

      Ueland, Thor; Astrup, Elisabeth; Otterdal, Kari; Lekva, Tove; Janardhanan, Jeshina; Prakash, John A.; Thomas, Kurien; Michelsen, Annika; Aukrust, Pål; Varghese, George M.; Damås, Jan Kristian (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-29)
      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. <p> <p>Methodology/Principal findings - Plasma levels of secreted Wnt antagonists (i.e. DKK-1, sFRP-3, WIF-1 and SOST) ...
    • Serum amyloid A1 and pregnancy zone protein in pregnancy complications and correlation with markers of placental dysfunction 

      Fosheim, Ingrid Knutsdotter; Jacobsen, Daniel Pitz; Sugulle, Meryam; Alnæs-Katjavivi, Patji; Fjeldstad, Heidi; Ueland, Thor; Lekva, Tove; Staff, Anne Cathrine (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-09)
      BACKGROUND: Hypertensive disorders of pregnancy (preeclampsia, gestational hypertension, and chronic hypertension), diabetes mellitus, and placental dysfunction confer an increased risk of long-term maternal cardiovascular disease. Preeclampsia is also associated with acute atherosis that involves lesions of uteroplacental spiral arteries, resembling early stages of atherosclerosis. Serum amyloid ...
    • Systemic Cell Adhesion Molecules in Severe Mental Illness: Potential Role of Intercellular CAM-1 in Linking Peripheral and Neuroinflammation 

      Sheikh, Mashhood Ahmed; O'Connell, Kevin Sean; Lekva, Tove; Szabo, Attila; Akkouh, Ibrahim Ahmed; Osete, Jordi Requena; Agartz, Ingrid; Engh, John; Andreou, Dimitrios; Boye, Birgitte; Bøen, Erlend; Elvsåshagen, Torbjørn; Hope, Sigrun; Werner, Maren Caroline Frogner; Joa, Inge; Johnsen, Erik; Kroken, Rune Andreas; Lagerberg, Trine Vik; Melle, Ingrid; Drange, Ole Kristian; Morken, Gunnar; Nærland, Terje; Sørensen, Kjetil; Vaaler, Arne; Weibell, Melissa Anne Elin Authen; Westlye, Lars Tjelta; Aukrust, Pål; Djurovic, Srdjan; Steen, Nils Eiel; Andreassen, Ole; Ueland, Thor (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-02)
      <p><b>Background</b> Cell adhesion molecules (CAMs) orchestrate leukocyte trafficking and could link peripheral and neuroinflammation in patients with severe mental illness (SMI), by promoting inflammatory and immune-mediated responses and mediating signals across blood-brain barrier. We hypothesized that CAMs would be dysregulated in SMI and evaluated plasma levels of different vascular and ...
    • YKL-40 (Chitinase-3-Like Protein 1) Serum Levels in Aortic Stenosis 

      Arain, Fizza Kanwal; Abraityte, Judita Aurelija; Bogdanova, Mariia; Solberg, Ole Geir; Michelsen, Annika; Lekva, Tove; Aakhus, Svend; Holm, Sverre; Halvorsen, Bente; Finsen, Alexandra; Vinge, Leif Erik; Nymo, Ståle Haugset; Espeland, Torvald; Ranheim, Trine; Aukrust, Pål; Vaage, Ingvar Jarle; Auensen, Andreas; Gullestad, Lars; Ueland, Thor (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-23)
      <p><i>Background:</i> Identification of novel biomarkers could provide prognostic information and improve risk stratification in patients with aortic stenosis (AS). YKL-40 (chitinase-3-like protein 1), a protein involved in atherogenesis, is upregulated in human calcific aortic valves. We hypothesized that circulating YKL-40 would be elevated and associated with the degree of AS severity and outcome ...