• Acute exacerbations of COPD and risk of lung cancer in COPD patients with and without a history of asthma 

      Gagnat, Ane Aamli; Gjerdevik, Miriam; Lie, Stein Atle; Gulsvik, Amund; Bakke, Per S.; Nielsen, Rune (Journal article; Peer reviewed, 2020)
      Rationale There is limited knowledge on the effect of acute exacerbations in chronic obstructive pulmonary disease (AECOPD) on lung cancer risk in COPD patients with and without a history of asthma. This study aims to ...
    • Cost effectiveness of adding budesonide/formoterol to tiotropium in COPD in four Nordic countries 

      Nielsen, Rune; Kankaanranta, Hannu; Bjermer, Leif; Lange, Peter; Arnetorp, Sofie; Hedegaard, Morten; Stenling, Anna; Mittmann, Nicole (Peer reviewed; Journal article, 2013-11)
      Objective: Assess the cost effectiveness of budesonide/formoterol (BUD/FORM) Turbuhaler®+tiotropium (TIO) HandiHaler® vs. placebo (PBO)+TIO in patients with chronic obstructive pulmonary disease (COPD) eligible for inhaled ...
    • Determinants of fractional exhaled nitric oxide in healthy men and women from the European Community Respiratory Health Survey III 

      Nerpin, Elisabet; Olivieri, Mario; Gislason, Thorainn; Olin, Anna C.; Nielsen, Rune; Johannessen, Ane; Ferreira, Diogenes S.; Marcon, Alessandro; Cazzoletti, Lucia; Accordini, Simone; Pin, Isabelle; Corsico, Angelo; Demoly, Pascal; Weyler, Joost; Nowak, Dennis; Jõgi, Rain; Forsberg, Bertil; Zock, Jan P.; Sigsgaard, Torben; Heinric, Joachim; Bono, Roberto; Leynaert, Bénédicte; Jarvis, Deborah; Janson, Christer; Malinovschi, Anderi (Peer reviewed; Journal article, 2019)
      Introduction: The fractional exhaled nitric oxide (FENO ) is a marker for type 2 inflammation used in diagnostics and management of asthma. In order to use FENO as a reliable biomarker, it is important to investigate factors ...
    • Incremental costs of COPD exacerbations in GOLD stage 2+ COPD in ever-smokers of a general population 

      Erdal, Marta; Johannessen, Ane; Bakke, Per S.; Gulsvik, Amund; Eagan, Tomas Mikal; Nielsen, Rune (Journal article; Peer reviewed, 2020-11)
      Objectives To estimate treatment- and productivity-related costs associated with COPD in two different samples, and to analyse the association between the costs and moderate and severe exacerbations. Methods We performed ...
    • Laboratory contamination in airway microbiome studies 

      Drengenes, Christine; Wiker, Harald G; Kalananthan, Tharmini; Nordeide, Eli; Eagan, Tomas Mikal; Nielsen, Rune (Peer reviewed; Journal article, 2019-08-14)
      Background The low bacterial load in samples acquired from the lungs, have made studies on the airway microbiome vulnerable to contamination from bacterial DNA introduced during sampling and laboratory processing. We have ...
    • Motivation and response rates in bronchoscopy studies 

      Martinsen, Einar Marius Hjellestad; Eagan, Tomas Mikal; Leiten, Elise Orvedal; Nordeide, Eli; Bakke, Per S.; Lehmann, Sverre; Nielsen, Rune (Peer reviewed; Journal article, 2019-05-02)
      Background Bronchoscopy is frequently used to sample the lower airways in lung microbiome studies. Despite being a safe procedure, it is associated with discomfort that may result in reservations regarding participation ...
    • Pharmacological treatment of asthma in a cohort of adults during a 20-year period: results from the European Community Respiratory Health Survey I, II and III 

      Janson, Christer; Accordini, Simone; Cazzoletti, Lucia; Cerveri, Isa; Chanoine, S; Corsico, Angelo; Ferreira, D.S.; Garcia-Aymerich, Judith; Gislason, Thorarinn; Nielsen, Rune; Johannessen, Ane; Jõgi, Rain; Malinovschi, Andrei; Moratalla, Jesús Martínez; Marcon, Alessandro; Pin, Isabelle; Quint, JK; Siroux, Valerie; Almar, Enrique; Bellisario, Valeria; Franklin, Karl A.; Gullon, JA; Holm, Mathias; Heinrich, Joachim; Nowak, Dennis; Sánchez-Ramos, José Luis; Weyler, Joost; Jarvis, Deborah (Peer reviewed; Journal article, 2019)
      Asthma often remains uncontrolled, despite the fact that the pharmacological treatment has undergone large changes. We studied changes in the treatment of asthma over a 20-year period and identified factors associated with ...
    • The pulmonary mycobiome—A study of subjects with and without chronic obstructive pulmonary disease 

      Martinsen, Einar Marius Hjellestad; Eagan, Tomas Mikal Lind; Leiten, Elise Orvedal; Haaland, Ingvild; Husebø, Gunnar Reksten; Knudsen, Kristel Svalland; Drengenes, Christine; Sanseverino, Walter; Paytuví-Gallart, Andreu; Nielsen, Rune (Journal article; Peer reviewed, 2021-04-07)
      Background: The fungal part of the pulmonary microbiome (mycobiome) is understudied. We report the composition of the oral and pulmonary mycobiome in participants with COPD compared to controls in a large-scale single-centre ...
    • Respiratory symptoms and mortality in four general population cohorts over 45 years 

      Gulsvik, Amund; Bakke, Per; Brøgger, Jan; Nielsen, Rune; Stavem, Knut (Journal article; Peer reviewed, 2020)
      Objective: This study assessed the association between respiratory symptoms and mortality in four cohorts of the general population in Norway aged 15–75 years and in selected subgroups in the pooled sample. Methods: The ...
    • Risk factors for lung cancer in COPD - results from the Bergen COPD cohort study 

      Husebø, Gunnar Reksten; Nielsen, Rune; Hardie, Jon Andrew; Bakke, Per S.; Lerner, Lorena; D'Alessandro-Gabazza, Corina; Gyuris, Jeno; Gabazza, Esteban; Aukrust, Pål; Eagan, Tomas Mikal (Peer reviewed; Journal article, 2019)
      Background: COPD patients have an increased risk of developing lung cancer, but the underlying mechanisms are poorly understood. We aimed to identify risk factors for lung cancer in patients from the Bergen COPD Cohort ...
    • Sputum microbiota and inflammation at stable state and during exacerbations in a cohort of chronic obstructive pulmonary disease (COPD) patients 

      Tangedal, Solveig; Nielsen, Rune; Aanerud, Marianne; Persson, Louise Jeanette Pauline; Wiker, Harald G; Bakke, Per S.; Hiemstra, Pieter S.; Eagan, Tomas Mikal (Peer reviewed; Journal article, 2019-09-17)
      Background: Exacerbations of chronic obstructive pulmonary disease (COPD) are debilitating events and spur disease progression. Infectious causes are frequent; however, it is unknown to what extent exacerbations are caused ...