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Umeå universitet
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Personalbild Nikolai Stenfors

Nikolai Stenfors

Universitetslektor Läkarprogrammet.

Docent i Lungmedicin.

Överläkare Lungkliniken Östersunds sjukhus.

Vetenskaplig meritering: Docent
0000-0002-1684-1301

Kontakt

E-post
nikolai.stenfors@umu.se
Telefon

Verksam vid

Anknytning
Universitetslektor, överläkare vid Institutionen för folkhälsa och klinisk medicin Enhet: Lungmedicin
Plats
Byggnad 1A, plan 4, målpunkt B41, Norrlands universitetssjukhus

Jag undervisar läkarstudenter i lungsjukdomar, vetenskapligt arbete, och kliniska färdigheter.  Jag forskar om luftvägseffekter av fysisk aktivitet i kyla. Jag jobbar dessutom som överläkare vid Lungkliniken på Östersunds sjukhus.

En populärvetenskaplig sammanfattning av våra forskningsresultat:

Svenska elitkonditionsidrottare, framförallt skidåkare, insjuknar i astma 20-30 gånger oftare än den svenska befolkningen i allmänhet. (Stenfors N, Irewall T, Lindberg A. Adjusted incidence, remission, and relapse of self-reported physician-diagnosed asthma and asthma medication usage in endurance athletes. Scand J Med Sci Sports. 2023 May;33(5):651-659. doi: 10.1111/sms.14286. Epub 2022 Dec 21 och Tommie Irewall, Lars Söderström, Anne Lindberg & Nikolai Stenfors (2021) High incidence rate of asthma among elite endurance athletes: a prospective 4-year survey, Journal of Asthma, 58:6, 735-741, DOI: 10.1080/02770903.2020.1728769).

Det är välkänt att värme- och fuktväxlande andningsmasker förebygger ansträngningsutlöst astma. Vi har nu visat att andningsmasker även skyddar luftrören hos friska individer vid fysisk aktivitet i kyla. Vi har dock ännu inte några bevis för att andningmasker kan förhindra uppkomst av köldastma eller skidåkarastma (Stenfors, N., Persson, H., Tutt, A. et al. A breathing mask attenuates acute airway responses to exercise in sub-zero environment in healthy subjects. Eur J Appl Physiol 122, 1473–1484 (2022). https://doi.org/10.1007/s00421-022-04939-x).  

 

All-cause and cause-specific mortality by spirometric pattern and sex: a population-based cohort study
Therapeutic Advances in Respiratory Disease, Sage Publications 2024, Vol. 18, (January-December)
Backman, Helena; Sawalha, Sami; Nilsson, Ulf; et al.
Exertional breathlessness related to medical conditions in middle-aged people: the population-based SCAPIS study of more than 25,000 men and women
Respiratory Research, BioMed Central (BMC) 2024, Vol. 25, (1)
Ekström, Magnus; Sundh, Josefin; Andersson, Anders; et al.
A longitudinal follow-up of continuous laryngoscopy during exercise test scores in athletes irrespective of laryngeal obstruction, respiratory symptoms, and intervention
BMC Sports Science, Medicine and Rehabilitation, BioMed Central (BMC) 2023, Vol. 15, (1)
Irewall, Tommie; Bäcklund, Catharina; Naumburg, Estelle; et al.
Elite skiers' experiences of heat- and moisture-exchanging devices and training and competition in the cold: A qualitative survey
Health Science Reports, John Wiley & Sons 2023, Vol. 6, (9)
Jong, Mats; Hanstock, Helen G.; Stenfors, Nikolai; et al.
High prevalence of interstitial lung abnormalities in middle-aged never-smokers
ERJ Open Research, European Respiratory Society 2023, Vol. 9, (5)
Pesonen, Ida; Johansson, Fredrik; Johnsson, Åse; et al.
Adjusted incidence, remission, and relapse of self-reported physician-diagnosed asthma and asthma medication usage in endurance athletes
Scandinavian Journal of Medicine and Science in Sports, John Wiley & Sons 2023, Vol. 33, (5) : 651-659
Stenfors, Nikolai; Irewall, Tommie; Lindberg, Anne
Severity of adult-onset asthma: a matter of blood neutrophils and severe obesity
Respiratory Medicine, Elsevier 2023, Vol. 219
Winsa-Lindmark, Sofia; Stridsman, Caroline; Sahlin, Axel; et al.
Breathing resistance in heat and moisture exchanging devices
Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology, Sage Publications 2022, Vol. 236, (2) : 97-105
Ainegren, Mats; Hanstock, Helen; Stenfors, Nikolai
Cause-specific Death in Chronic Airway Obstruction and Restrictive Spirometric Pattern
Annals of the American Thoracic Society, American Thoracic Society 2022, Vol. 19, (10) : 1783-1787
Backman, Helena; Sawalha, Sami; Nilsson, Ulf; et al.
Cold air exposure at -15 °C induces more airway symptoms and epithelial stress during heavy exercise than rest without aggravated airway constriction
European Journal of Applied Physiology, Springer 2022, Vol. 122, (12) : 2533-2544
Eklund, Linda M.; Sköndal, Åsa; Tufvesson, Ellen; et al.
Influence of exercise duration on respiratory function and systemic immunity among healthy, endurance-trained participants exercising in sub-zero conditions
Respiratory Research, BioMed Central (BMC) 2022, Vol. 23, (1)
Gavrielatos, Angelos; Ratkevica, Iluta; Stenfors, Nikolai; et al.
No differences in cytokine responses to moderate-intensity exercise in -10°C versus 10°C
ERJ Open Research, European Respiratory Society 2022, Vol. 8, (suppl 8)
Hanstock, Helen; Eklund, Linda; Sandström, Thomas; et al.
A breathing mask attenuates acute airway responses to exercise in sub-zero environment in healthy subjects
European Journal of Applied Physiology, Springer Science+Business Media B.V. 2022, Vol. 122 : 1473-1484
Stenfors, Nikolai; Persson, Hampus; Tutt, Alasdair; et al.
An experimental exposure study revealing composite airway effects of physical exercise in a subzero environment
International Journal of Circumpolar Health, Taylor & Francis 2021, Vol. 80, (1)
Eklund, Linda; Schagatay, Filip; Tufvesson, Ellen; et al.
High Prevalence of Exercise-induced Laryngeal Obstruction in a Cohort of Elite Cross-country Skiers
Medicine & Science in Sports & Exercise, American College of Sports Medicine 2021, Vol. 53, (6) : 1134-1141
Irewall, Tommie; Bäcklund, Catharina; Nordang, Leif; et al.
High incidence rate of asthma among elite endurance athletes: a prospective 4-year survey
Journal of Asthma, Taylor & Francis 2021, Vol. 58, (6) : 735-741
Irewall, Tommie; Söderström, Lars; Lindberg, Anne; et al.
Usage of and attitudes toward heat- and moisture-exchanging breathing devices among adolescent skiers
Translational Sports Medicine, John Wiley & Sons 2021, Vol. 4, (3) : 337-343
Stenfors, Nikolai; Hanstock, Helen; Ainegren, Mats; et al.
Occupational cold exposure is associated with increased reporting of airway symptoms
International Archives of Occupational and Environmental Health, Springer 2021, Vol. 94, (8) : 1945-1952
Stjernbrandt, Albin; Stenfors, Nikolai; Liljelind, Ingrid
Respiratory Health Effects of Wildfire Smoke during Summer of 2018 in the Jämtland Härjedalen Region, Sweden
International Journal of Environmental Research and Public Health, MDPI 2021, Vol. 18, (13)
Tornevi, Andreas; Andersson, Camilla; Carvalho, Ana Cristina; et al.
A heat and moisture-exchanging mask impairs self-paced maximal running performance in a sub-zero environment
European Journal of Applied Physiology, Springer 2021, Vol. 121, (7) : 1979-1992
Tutt, Alasdair S.; Persson, Hampus; Andersson, Erik P.; et al.
Exercise in sub-zero temperatures and airway health: implications for athletes with special focus on heat-and-moisture-exchanging breathing devices
Frontiers in Sports and Active Living, Frontiers Media S.A. 2020, Vol. 2
Hanstock, Helen G.; Ainegren, Mats; Stenfors, Nikolai
The Prevalence of Asthma and Respiratory Symptoms among Cross-Country Skiers in Early Adolescence
Canadian Respiratory Journal, Hindawi Publishing Corporation 2019, Vol. 2019
Lennelöv, E.; Irewall, Tommie; Naumburg, Estelle; et al.
Prevalence of asthma and respiratory symptoms among cross-country skiers in early adolescence
European Respiratory Journal, Sheffield: European Respiratory Society Journals 2019, Vol. 54
Lennelöv, Emma; Irewall, Tommie; Naumburg, Estelle; et al.
Mortality by cause of death and spirometric pattern in a population-based study
European Respiratory Journal, Sheffield: European Respiratory Society Journals 2019, Vol. 54
Sawalha, Sami; Backman, Helena; Nilsson, Ulf; et al.
The impact of comorbidities on mortality among men and women with COPD: report from the OLIN COPD study
Therapeutic Advances in Respiratory Disease, Sage Publications 2019, Vol. 13
Sawalha, Sami; Hedman, Linnea; Backman, Helena; et al.
Qualitative identification and characterisation of self-reported symptoms arising in humans during experimental exposure to cold air
International Journal of Circumpolar Health, Taylor & Francis 2019, Vol. 78, (1)
Sjöström, Rita; Söderström, Lars; Klockmo, Carolina; et al.
Prevalence, age at onset, and risk factors of self-reported asthma among Swedish adolescent elite cross-country skiers
Scandinavian Journal of Medicine and Science in Sports, John Wiley & Sons 2018, Vol. 28, (1) : 180-186
Eriksson, Linda M.; Irewall, Tommie; Lindberg, Anne; et al.
Symptoms of moderate exercise in subzero temperatures - An experimental exposure study
European Respiratory Journal, European Respiratory Society 2018, Vol. 52
Eriksson, Linda; Schagatay, Filip; Sjöström, Rita; et al.
Asthma and Asthma Medication Are Common among Recreational Athletes Participating in Endurance Sport Competitions
Canadian Respiratory Journal, Hindawi Publishing Corporation 2018, Vol. 2018
Näsman, Amanda; Irewall, Tommie; Hållmarker, Ulf; et al.
Asthma Control and Asthma Medication Use among Swedish Elite Endurance Athletes
Canadian Respiratory Journal
Persson, Hampus; Lindberg, Anne; Stenfors, Nikolai
The impact of comorbidities on mortality in COPD, report from the OLIN COPD study.
European Respiratory Journal, European Respiratory Society 2018, Vol. 52
Sawalha, Sami; Hedman, Linnea; Backman, Helena; et al.
No difference in long term survival in patients hospitalized for pneumonic versus non-pneumonic acute exacerbations of COPD
Clinical Respiratory Journal, Wiley-Blackwell 2018, Vol. 12, (3) : 1305-1306
Stenfors, Nikolai; Liaaen, Erik Dyb; Henriksen, Anne H.
Implementation of a telephone-based secondary preventive intervention after acute coronary syndrome (ACS): participation rate, reasons for non-participation and 1-year survival
Trials, Vol. 17
Huber, Daniel; Henriksson, Robin; Jakobsson, Stina; et al.
Effects of controlled diesel exhaust exposure on apoptosis and proliferation markers in bronchial epithelium: an in vivo bronchoscopy study on asthmatics, rhinitics and healthy subjects
BMC Pulmonary Medicine, Vol. 15
Behndig, Annelie F.; Shanmuganathan, Karthika; Whitmarsh, Laura; et al.
Self-reported physician-diagnosed asthma among Swedish adolescent, adult and former elite endurance athletes
Journal of Asthma, Taylor & Francis 2015, Vol. 52, (10)
Norqvist, Johan; Eriksson, Linda; Söderström, Lars; et al.
The Prevalence of COPD in Individuals with Acute Coronary Syndrome: A Spirometry-Based Screening Study
COPD: Journal of Chronic Obstructive Pulmonary Disease, Vol. 12, (4) : 453-461
Stenfors, Nikolai; Mooe, Thomas
Impact of pneumonia on hospitalizations due to acute exacerbations of COPD
Clinical Respiratory Journal, Vol. 8, (1) : 93-99
Andreassen, Siw Lillevik; Liaaen, Erik Dyb; Stenfors, Nikolai; et al.
Peripheral blood neutrophilia as a biomarker of ozone-induced pulmonary inflammation
PLOS ONE, Public Library of Science 2013, Vol. 8, (12)
Bosson, Jenny A; Blomberg, Anders; Stenfors, Nikolai; et al.
Airway inflammatory responses to diesel exhaust in allergic rhinitics
Inhalation Toxicology, Vol. 25, (3) : 160-167
Larsson, Nirina; Brown, Joanna; Stenfors, Nikolai; et al.
Proinflammatory doses of diesel exhaust in healthy subjects fail to elicit equivalent or augmented airway inflammation in subjects with asthma
Thorax, Vol. 66, (1) : 12-19
Behndig, Annelie F; Larsson, Nirina; Brown, Joanna L; et al.
A Scandinavian audit of hospitalizations for chronic obstructive pulmonary disease
Respiratory Medicine, Vol. 104, (9) : 1304-1309
Liaaen, Erik Dyb; Henriksen, Anne H; Stenfors, Nikolai
Self-reported symptoms and bronchial hyperresponsiveness in elite cross-country skiers.
Respiratory Medicine, Elsevier 2010, Vol. 104, (11) : 1760-1763
Stenfors, Nikolai
Ozone exposure enhances mast-cell inflammation in asthmatic airways despite inhaled corticosteroid therapy.
Inhalation Toxicology, Informa Healthcare 2010, Vol. 22, (2) : 133-139
Stenfors, Nikolai; Bosson, Jenny; Helleday, Ragnberth; et al.
Airway antioxidant and inflammatory responses to diesel exhaust exposure in healthy humans.
European Respiratory Journal, Vol. 27, (2) : 359-365
Behndig, Annelie; Mudway, IS; Brown, JL; et al.
Airway antioxidant and inflammatory responses to diesel exhaust exposure in healthy humans.
European Respiratory Journal, Vol. 27, (2) : 359-365
Behndig, Annelie; Mudway, IS; Brown, JL; et al.
Physician-diagnosed COPD global initiative for chronic obstructive lung disease stage IV in Östersund, Sweden: patient characteristics and estimated prevalence
Chest, American College of Chest Physicians 2006, Vol. 130, (3) : 666-671
Stenfors, Nikolai
An in vitro and in vivo investigation of the effects of diesel exhaust on human airway lining fluid antioxidants.
Arch Biochem Biophys, Vol. 423, (1) : 200-12
Mudway, Ian S; Stenfors, Nikolai; Duggan, Sean T; et al.
Different airway inflammatory responses in asthmatic and healthy humans exposed to diesel.
Eur Respir J, Vol. 23, (1) : 82-6
Stenfors, Nikolai; Nordenhäll, Charlotta; Salvi, S S; et al.
Ozone-induced bronchial epithelial cytokine expression differs between healthy and asthmatic subjects
Clinical and Experimental Allergy, Vol. 33, (6) : 777-782
Bosson, Jenny; Stenfors, Nikolai; Blomberg, Anders; et al.
Health effects of acute exposure to air pollution. Part I: Healthy and asthmatic subjects exposed to diesel exhaust
Research report (Health Effects Institute), (112) : 1-30; discussion 51
Holgate, Stephen T; Sandström, Thomas; Frew, Anthony J; et al.
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