Viser treff 128-147 av 1796

    • Associations of brain-natriuretic peptide, high-sensitive troponin T, and high-sensitive C-reactive protein with outcomes in severe aortic stenosis 

      Auensen, Andreas; Hussain, Amjad; Falk, Ragnhild Sørum; Walle-Hansen, Marte Meyer; Bye, Jorun; Pettersen, Kjell; Ueland, Thor; Gullestad, Lars (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-06-12)
      Objectives:<br>Among patients with severe aortic stenosis (AS), we investigated the associations of N–terminal pro–natriuretic peptide (NT–proBNP), high–sensitive troponin T (hsTnT), and high–sensitive C–reactive protein (hs–CRP) with 3–year mortality and major adverse cardiovascular events (MACE) during 1 year.<br>Methods:<br>This observational cohort study prospectively enrolled 442 patients with ...
    • Associations of serum 25-hydroxyvitamin D and subjective sleep measures in an arctic population: Insights from the population-based Tromsø Study 

      Uhlving Larsen, Anette; Hopstock, Laila Arnesdatter; Jorde, Rolf; Grimnes, Guri (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-06)
      Objective - To investigate the relation between serum 25-hydroxyvitamin D (s-25(OH)D) and subjective sleep measures in an Arctic population (69°N).<p> <p>Methods - Cross-sectional data was collected from 21,083 individuals (aged ≥40 years) participating in the population based Tromsø Study: Tromsø7 (2015–2016). The present study included 20,438 participants, after having excluded respondents ...
    • Atherosclerotic risk factors and risk of myocardial infarction and venous thromboembolism; Time-fixed versus time-varying analyses. The Tromsø Study 

      Småbrekke, Birgit; Balteskard Rinde, Ludvig; Hindberg, Kristian; Mathiesen Hald, Erin; Vik, Anders; Wilsgaard, Tom; Løchen, Maja-Lisa; Njølstad, Inger; Mathiesen, Ellisiv B.; Hansen, John-Bjarne; Brækkan, Sigrid Kufaas (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-09-16)
      <i>Background:</i> Single measurements of modifiable risk factors may underestimate associations with outcomes in cohorts. We aimed to compare risk estimates of myocardial infarction (MI) and venous thromboembolism (VTE) by atherosclerotic risk factors during long follow-up using time-fixed analyses without and with correction for regression dilution and time-varying analyses.<p> <p><i>Methods:</i> ...
    • ATPase activity of DFCP1 controls selective autophagy 

      Nahse-Kumpf, Viola; Raiborg, Camilla; Tan, Kia Wee; Mørk, Sissel; Torgersen, Maria Lyngaas; Wenzel, Eva; Nager Grifo, Mireia; Salo, Veijo T.; Johansen, Terje; Ikonen, Elina; Schink, Kay Oliver; Stenmark, Harald Alfred (Journal article; Tidsskriftartikkel, 2023-07-08)
      Cellular homeostasis is governed by removal of damaged organelles and protein aggregates by selective autophagy mediated by cargo adaptors such as p62/SQSTM1. Autophagosomes can assemble in specialized cup-shaped regions of the endoplasmic reticulum (ER) known as omegasomes, which are characterized by the presence of the ER protein DFCP1/ZFYVE1. The function of DFCP1 is unknown, as are the mechanisms ...
    • Atrial Fibrillation and Cause-Specific Risks of Pulmonary Embolism and Ischemic Stroke 

      Hald, Erin Mathiesen; Rinde, Ludvig Balteskard; Løchen, Maja-Lisa; Mathiesen, Ellisiv B.; Wilsgaard, Tom; Njølstad, Inger; Brækkan, Sigrid Kufaas; Hansen, John-Bjarne (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-01-29)
      <p><i>Background</i>: Atrial fibrillation (AF) is a well‐established risk factor for ischemic stroke (IS). Emerging evidence also indicates an association between AF and pulmonary embolism (PE). Because IS may potentially mediate the observed risk of PE in AF, we aimed to assess the impact of AF on the cause‐specific risks of PE and IS in a large cohort recruited from the general population.</p> ...
    • Atrial fibrillation and future risk of venous thromboembolism:the Tromsø study 

      Enga, Kristin Fjeldstad; Rye Holmboe, Ina; Mathisen Hald, Erin; Løchen, Maja-Lisa; Mathiesen, Ellisiv B.; Njølstad, Inger; Wilsgaard, Tom; Brækkan, Sigrid Kufaas; Hansen, John-Bjarne (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
    • Atrial fibrillation, venous thromboembolism, ischemic stroke, and all-cause mortality: The Tromsø study 

      Hald, Erin Mathiesen; Løchen, Maja-Lisa; Mathiesen, Ellisiv B; Wilsgaard, Tom; Njølstad, Inger; Brækkan, Sigrid K.; Hansen, John-Bjarne (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-06)
      Background Atrial fibrillation (AF) is associated with increased risk of ischemic stroke and all‐cause mortality. Patients with AF are also at increased risk of venous thromboembolism (VTE), but information on how AF impacts VTE‐related mortality is scarce. Objectives - To investigate the impact of AF on all‐cause mortality in subjects with and without a thromboembolic event (VTE or ischemic ...
    • Attenuated Notch signaling in schizophrenia and bipolar disorder 

      Hoseth, Eva Zsuzsanna; Krull, Florian; Dieset, Ingrid; Mørch, Ragni Helene; Hope, Sigrun; Gardsjord, Erlend Strand; Steen, Nils Eiel; Melle, Ingrid; Brattbakk, Hans-Richard; Steen, Vidar Martin; Aukrust, Pål; Djurovic, Srdjan; Andreassen, Ole Andreas; Ueland, Thor (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-23)
      The Notch signaling pathway plays a crucial role in neurodevelopment and in adult brain homeostasis. We aimed to further investigate Notch pathway activity in bipolar disorder (BD) and schizophrenia (SCZ) by conducting a pathway analysis. We measured plasma levels of Notch ligands (DLL1 and DLK1) using enzyme immunoassays in a large sample of patients (SCZ n = 551, BD n = 246) and healthy controls ...
    • Autoimmune disease and risk of postpartum venous thromboembolism 

      Walker, Rob F.; Zakai, Neil A.; Mason, Susan M.; MacLehose, Richard F.; Norby, Faye L.; Evensen, Line Holtet; Alonso, Alvaro; Lutsey, Pamela L. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-23)
      Background - The risk of pregnancy-related mortality in the United States has nearly doubled since 1990, with venous thromboembolism (VTE) accounting for approximately 10% of these deaths.<p> <p>Objectives - The objective of this study was to assess whether preexisting autoimmune disease is a risk factor for postpartum VTE.<p> <p>Methods - Using the MarketScan Commercial and Medicare Supplemental ...
    • Autologous chondrocyte implantation for hip osteochondritis functioning 15 years after operation 

      Johansen, Oddmund; Peterson, Lars; Avenarius, Derk; Knutsen, Gunnar (Journal article; Tidsskriftartikkel, 2016-11-30)
      <b>Background:</b> The autologous implantation technique (ACI) was first introduced in studies on cartilage defects in knees. It has later been used for the treatment of osteochondral knee lesions. The patient presented here had a hip osteochondral defect measuring 4 cm in diameter. He was a candidate for hip prosthesis because of serious pain and reduced function. Being young and highly motivated ...
    • Automated analysis of color tissue Doppler velocity recordings of the fetal myocardium using a new algorithm 

      Herling, Lotta; Johnson, Jonas; Ferm-Widlund, Kjerstin; Lindgren, Peter; Acharya, Ganesh; Westgren, Magnus (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-08-27)
      Background: Tissue Doppler imaging (TDI) can be used to assess fetal cardiac function and it has been shown to detect changes associated with hypoxia in animal models. However, the analysis is cumbersome and time consuming. The main objective of this study was to evaluate the feasibility of a new algorithm developed for the automated analysis of color TDI velocity recordings of the fetal myocardium. ...
    • Automated analysis of fetal cardiac function using color tissue Doppler imaging in second half of normal pregnancy 

      Herling, Lotta; Johnson, Jonas; Ferm-Widlund, Kjerstin; Bergholm, Fredrik; Elmstedt, Nina; Lindgren, Peter; Sonesson, Sven-Erik; Acharya, Ganesh; Westgren, Magnus (Journal article; Tidsskriftartikkel, 2018-02-26)
      <i>Objectives</i> - Color tissue Doppler imaging (cTDI) is a promising tool for the assessment of fetal cardiac function. However, the analysis of myocardial velocity traces is cumbersome and time‐consuming, limiting its application in clinical practice. The aim of this study was to evaluate fetal cardiac function during the second half of pregnancy and to develop reference ranges using an ...
    • Automated quantitative evaluation of fetal atrioventricular annular plane systolic excursion 

      Herling, L.; Johnson, J.; Ferm-Widlund, K.; Zamprakou, A.; Westgren, M.; Acharya, G. (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-07)
      Objectives The primary aim of this study was to evaluate the feasibility of automated measurement of fetal atrioventricular (AV) plane displacement (AVPD) over several cardiac cycles using myocardial velocity traces obtained by color tissue Doppler imaging (cTDI). The secondary objectives were to establish reference ranges for AVPD during the second half of normal pregnancy, to assess fetal ...
    • Automated segmentation of magnetic resonance bone marrow signal: a feasibility study 

      von Brandis, Elisabeth; Jenssen, Håvard Bjørke; Avenarius, Derk Frederik Matthaus; Bjørnerud, Atle; Flatø, Berit; Tomterstad, Anders; Lilleby, Vibke; Rosendahl, Karen; Sakinis, Tomas; Zadig, Pia Karin Karlsen; Müller, Lil-Sofie Ording (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-02)
      Background - Manual assessment of bone marrow signal is time-consuming and requires meticulous standardisation to secure adequate precision of findings.<p> <p>Objective - We examined the feasibility of using deep learning for automated segmentation of bone marrow signal in children and adolescents.<p> <p>Materials and methods - We selected knee images from 95 whole-body MRI examinations of ...
    • Automatic measurements of left ventricular volumes and ejection fraction by artificial intelligence reduces time-consumption and inter-observer variability 

      Olaisen, Sindre Hellum; Espeland, Torvald; Smistad, Erik; Hu, Jieyu; Pasdeloup, David Francis Pierre; Østvik, Andreas; Amundsen, Brage H.; Aakhus, Svend; Rösner, Assami; Stylidis, Michael; Holte, Espen; Grenne, Bjørnar Leangen; Løvstakken, Lasse; Dalen, Håvard (Conference object; Konferansebidrag, 2023-06-19)
    • Automatic measurements of left ventricular volumes and ejection fraction by artificial intelligence: clinical validation in real time and large databases 

      Olaisen, Sindre Hellum; Smistad, Erik; Espeland, Torvald; Hu, Jieyu; Pasdeloup, David Francis Pierre; Østvik, Andreas; Aakhus, Svend; Rösner, Assami; Malm, Siri; Stylidis, Michael; Holte, Espen; Grenne, Bjørnar Leangen; Løvstakken, Lasse; Dalen, Håvard (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-26)
      Aims - Echocardiography is a cornerstone in cardiac imaging, and left ventricular (LV) ejection fraction (EF) is a key parameter for patient management. Recent advances in artificial intelligence (AI) have enabled fully automatic measurements of LV volumes and EF both during scanning and in stored recordings. The aim of this study was to evaluate the impact of implementing AI measurements on acquisition ...
    • Autophagy and endocytosis – interconnections and interdependencies 

      Birgisdottir, Åsa birna; Johansen, Terje (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-22)
      Autophagy and endocytosis are membrane-vesicle-based cellular pathways for degradation and recycling of intracellular and extracellular components, respectively. These pathways have a common endpoint at the lysosome, where their cargo is degraded. In addition, the two pathways intersect at different stages during vesicle formation, fusion and trafficking, and share parts of the molecular machinery. ...
    • Autoregulation of Cerebral Blood Flow During 3-h Continuous Cardiopulmonary Resuscitation at 27°C 

      Valkov, Sergei; Nilsen, Jan Harald; Mohyuddin, Rizwan; Schanche, Torstein Lindahl; Kondratyev, Timofey; Sieck, Gary C.; Tveita, Torkjel (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-09)
      Introduction: Victims of accidental hypothermia in hypothermic cardiac arrest (HCA) may survive with favorable neurologic outcome if early and continuous prehospital cardiopulmonary resuscitation (CPR) is started and continued during evacuation and transport. The efficacy of cerebral autoregulation during hypothermic CPR is largely unknown and is aim of the present experiment.<p> <p>Methods: ...
    • Avatars using computer/smartphone mediated communication and social networking in prevention of sexually transmitted diseases 

      Gabarron, Elia; Serrano, Jose Artur F S Vale; Wynn, Rolf; Armayones Ruiz, Manuel (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Sexually transmitted diseases (STDs), especially the Chlamydia trachomatis bacterial infection, a common cause of infertility, are highly prevalent in developed countries, and a worrying problem in North Norway, where the incidence of chlamydia twice the Norwegian average. Seventy percent of reported chlamydia cases are found in people below 25 years of age, and although its spread could be controlled ...
    • Å skape et hjem – kvinners plass i den tidlige institusjonsbyggingen. Nord-Norge før 1940 

      Hamran, Torunn (Journal article; Tidsskriftartikkel; Peer reviewed, 2007)
      Scandinavian welfare research has paid more and more attention to the role played by women in building institutions for children, the sick and the elderly. The new institutions were generally called ”homes” and it was precisely this linkage between women and homes that may have led to clear perceptions of what the new ”homes” were like. Concepts like motherliness, homeliness and intimacy are ...