• Mutations in TP53 increase the risk of SOX2 copy number alterations and silencing of TP53 reduces SOX2 expression in non-small cell lung cancer 

      Erdem, Johanna Samulin; Skaug, Vidar; Bakke, Per S.; Gulsvik, Amund; Haugen, Aage; Zienolddiny, Shanbeh (Peer reviewed; Journal article, 2016-01-19)
      Background: Amplifications of the transcription factor, SRY (sex determining region Y)-box 2 (SOX2), are common in non-small cell lung cancer (NSCLC). SOX2 signaling is important in maintaining the stem cell-like phenotype ...
    • Participation in research bronchoscopy: a literature review 

      Martinsen, Einar Marius Hjellestad; Leiten, Elise Orvedal; Bakke, Per S.; Eagan, Tomas Mikal; Grønseth, Rune (Peer reviewed; Journal article, 2016-02-03)
      Bronchoscopy is the preferred method for collecting biological samples from the lower airways of subjects in clinical research. However, ensuring participation in clinical research can be challenging when the research ...
    • Prevalence and prognostic ability of the GOLD 2017 classification compared to the GOLD 2011 classification in a Norwegian COPD cohort 

      Le, Lan Ai Kieu; Johannessen, Ane; Hardie, Jon Andrew; Johansen, Odd Erik; Gulsvik, Amund; Vikse, Bjørn Egil; Bakke, Per S. (Peer reviewed; Journal article, 2019-07-23)
      Rationale: The Global Initiative for Chronic Obstructive Lung Disease (GOLD) 2017 is based on an ABCD assessment tool of symptoms and exacerbation history and grade 1–4 of airflow limitation severity, facilitating ...
    • Protected sampling is preferable in bronchoscopic studies of the airway microbiome 

      Grønseth, Rune; Drengenes, Christine; Wiker, Harald G; Tangedal, Solveig; Xue, Yaxin; Husebø, Gunnar; Svanes, Øistein; Lehmann, Sverre; Aardal, Marit Elisabeth; Hoang, Tuyen; Kalananthan, Tharmini; Martinsen, Einar Marius Hjellestad; Leiten, Elise Orvedal; Aanerud, Marianne; Nordeide, Eli; Haaland, Ingvild; Jonassen, Inge; Bakke, Per S.; Eagan, Tomas Mikal (Journal article; Peer reviewed, 2017)
      The aim was to evaluate susceptibility of oropharyngeal contamination with various bronchoscopic sampling techniques. 67 patients with obstructive lung disease and 58 control subjects underwent bronchoscopy with ...
    • The respiratory virome and exacerbations in patients with chronic obstructive pulmonary disease 

      van Rijn, Anneloes L.; van Boheemen, Sander; Sidorov, Igor; Carbo, Ellen C.; Pappas, Nikos; Mei, Hailiang; Feltkamp, Mariet; Aanerud, Marianne; Bakke, Per S.; Claas, Eric C.J.; Eagan, Tomas Mikal; Hiemstra, Pieter S.; Kroes, Aloys C.M.; de Vries, Jutte J.C. (Peer reviewed; Journal article, 2019-10-24)
      Introduction: Exacerbations are major contributors to morbidity and mortality in patients with chronic obstructive pulmonary disease (COPD), and respiratory bacterial and viral infections are an important trigger. However, ...
    • 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 ...
    • A simple algorithm for the identification of clinical COPD phenotypes 

      Burgel, Pierre-Régis; Paillasseur, Jean-Louis; Janssens, Wim; Piquet, Jacques; Ter Riet, Gerben; Garcia-Aymerich, Judith; Cosio, Borja; Bakke, Per S.; Puhan, Milo A.; Langhammer, Arnulf; Alfageme, Inmaculada; Almagro, Pere; Ancochea, Julio; Celli, Bartolomé R.; Casanova, Ciro; de-Torres, Juan P.; Decramer, Marc; Echazarreta, Andrés; Esteban, Cristobal; Punter, Rosa Mar Gomez; Han, Meilan K.; Johannessen, Ane; Kaiser, Bernhard; Lamprecht, Bernd; Lange, Peter; Leivseth, Linda; Marin, Jose M.; Martin, Francis; Martinez-Camblor, Pablo; Miravitlles, Marc; Oga, Toru; Ramírez, Ana Sofia; Sin, Don D.; Sobradillo, Patricia; Soler-Cataluña, Juan J.; Turner, Alice M.; Rivera, Francisco Javier Verdu; Soriano, Joan B.; Roche, Nicolas (Peer reviewed; Journal article, 2017)
      This study aimed to identify simple rules for allocating chronic obstructive pulmonary disease (COPD) patients to clinical phenotypes identified by cluster analyses. Data from 2409 COPD patients of French/Belgian COPD ...
    • 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 ...
    • Vitamin D, vitamin D binding protein, and longitudinal outcomes in COPD 

      Persson, Louise Jeanette Pauline; Aanerud, Marianne; Hiemstra, Pieter Sicco; Michelsen, Annika; Ueland, Thor; Hardie, Jon Andrew; Aukrust, Pål; Bakke, Per S.; Eagan, Tomas Mikal (Peer reviewed; Journal article, 2015-03-24)
      Background: Associations between Vitamin D3 [25(OH)D], vitamin D binding protein (VDBP) and chronic obstructive pulmonary disease (COPD) are previously reported. We aimed to further investigate these associations on ...