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  • 1. Amberbir, Alemayehu
    et al.
    Medhin, Girmay
    Alem, Atalay
    Department of Psychiatry, Addis Ababa University, Addis Ababa, Ethiopia.
    Britton, John
    Davey, Gail
    Venn, Andrea
    The role of acetaminophen and geohelminth infection on the incidence of wheeze and eczema: a longitudinal birth-cohort study2011In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 183, no 2, p. 165-170Article in journal (Refereed)
    Abstract [en]

    These findings suggest frequent acetaminophen use early in life increases the risk of new-onset wheeze, whereas the role of geohelminth infection on allergic disease incidence remains to be seen as the cohort matures.

  • 2. Antoniewicz, L.
    et al.
    Kabele, Mikael
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    Lundback, M.
    Bosson, Jenny A.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    Increased Arterial Stiffness In Chronic Swedish Snus Users2017In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 195Article in journal (Refereed)
  • 3.
    Behndig, Annelie F.
    et al.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Linder, Robert
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Lindberg, Anne
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    Pourazar, Jamshid
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Blomberg, Anders
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Inflammatory Markers In Different COPD Subgroups Compared To Smokers And Healthy Controls2015In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 191, article id A2884Article in journal (Other academic)
  • 4.
    Blomberg, Anders
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Update in environmental and occupational medicine 20112012In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 185, no 11, p. 1166-1170Article in journal (Refereed)
  • 5.
    Bosson, J.
    et al.
    Umeå University.
    Antoniewicz, L.
    Kuhl, J.
    Halim, S. A.
    Mobarrez, F.
    Lundback, M.
    Increase Of Circulating Endothelial Progenitor Cells Following E-Cigarette Inhalation In Human Subjects2016In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 193Article in journal (Refereed)
  • 6.
    Bosson, Jenny A.
    et al.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Blomberg, Anders
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Update in Environmental and Occupational Medicine 20122013In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 188, no 1, p. 18-22Article in journal (Refereed)
  • 7.
    Bosson, Jenny A.
    et al.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Mudway, Ian S.
    Sandström, Thomas
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Traffic-related Air Pollution, Health, and Allergy: The Role of Nitrogen Dioxide2019In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 200, no 5, p. 523-524Article in journal (Other academic)
  • 8.
    Bosson, Jenny. A.
    et al.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Pourazar, Jamshid
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Blomberg, Anders
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Sandström, Thomas
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Connolly-Andersen, Anne-Marie
    Umeå University, Faculty of Medicine, Department of Clinical Microbiology, Infectious Diseases.
    Rankin, Gregory
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Langrish, J. P.
    Increased Soluble Thrombomodulin In Plasma Following Diesel Exhaust Exposure2015In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 191, article id A3210Article in journal (Other academic)
  • 9. Bushnell, Theodore
    et al.
    Watson, Nathaniel F
    Fischer, E
    Goldberg, Jack
    Franklin, Karl
    Umeå University, Faculty of Medicine, Public Health and Clinical Medicine. Umeå University, Faculty of Medicine, Public Health and Clinical Medicine, Pulmonary Medicine.
    Smoking and snoring in twins.: From the Authors:2005In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 172, no 5, p. 643; author reply 643-Article in journal (Refereed)
  • 10. Cornmins, Scott P.
    et al.
    Kelly, Libby A.
    Rönmark, Eva
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine.
    James, Hayley R.
    Pochan, Shawna L.
    Peters, Edward J.
    Lundbäck, Bo
    Nganga, Lucy W.
    Cooper, Philip J.
    Hoskins, Janelle M.
    Eapen, Saju S.
    Matos, Luis A.
    McBride, Dane C.
    Heymann, Peter W.
    Woodfolk, Judith A.
    Perzanowski, Matthew S.
    Platts-Mills, Thomas A. E.
    Galactose-alpha-1,3-Galactose-Specific IgE Is Associated with Anaphylaxis but Not Asthma2012In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 185, no 7, p. 723-730Article in journal (Refereed)
    Abstract [en]

    Rationale: IgE antibodies to the mammalian oligosaccharide galactose-alpha-1,3-galactose (alpha-gal) are common in the southeastern United States. These antibodies, which are induced by ectoparasitic ticks, can give rise to positive skin tests or serum assays with cat extract. Objectives: To evaluate the relationship between IgE antibodies to alpha-gal and asthma, and compare this with the relationship between asthma and IgE antibodies to Fel d 1 and other protein allergens. Methods: Patients being investigated for recurrent anaphylaxis, angioedema, or acute urticaria underwent spirometry, exhaled nitric oxide, questionnaires, and serum IgE antibody assays. The results were compared with control subjects and cohorts from the emergency department in Virginia (n = 130), northern Sweden (n = 963), and rural Kenya (n = 131). Measurements and Main Results: Patients in Virginia with high-titer IgE antibodies to a-gal had normal lung function, low levels of exhaled nitric oxide, and low prevalence of asthma symptoms. Among patients in the emergency department and children in Kenya, there was no association between IgE antibodies to a-gal and asthma (odds ratios, 1.04 and 0.75, respectively). In Sweden, IgE antibodies to cat were closely correlated with IgE antibodies to Fel d 1 (r = 0.83) and to asthma (P < 0.001). Conclusions: These results provide a model of an ectoparasite-induced specific IgE response that can increase total serum IgE without creating a risk for asthma, and further evidence that the main allergens that are causally related to asthma are those that are inhaled.

  • 11. Dimakopoulou, Konstantina
    et al.
    Samoli, Evangelia
    Beelen, Rob
    Stafoggia, Massimo
    Jovanovic Andersen, Zorana
    Hoffmann, Barbara
    Fischer, Paul
    Nieuwenhuijsen, Mark
    Vineis, Paolo
    Xun, Wei
    Hoek, Gerard
    Raaschou-Nielsen, Ole
    Oudin, Anna
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine.
    Forsberg, Bertil
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine.
    Modig, Lars
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine.
    Jousilahti, Pekka
    Lanki, Timo
    Turunen, Anu
    Oftedal, Bente
    Nafstad, Per
    Schwarze, Per E
    Penell, Johanna
    Fratiglioni, Laura
    Andersson, Niklas
    Pedersen, Nancy
    Korek, Michal
    De Faire, Ulf
    Thorup Eriksen, Kirsten
    Tjønneland, Anne
    Becker, Thomas
    Wang, Meng
    Bueno-de-Mesquita, Bas
    Tsai, Ming-Yi
    Eeftens, Marloes
    Peeters, Petra H
    Meliefste, Kees
    Marcon, Alessandro
    Krämer, Ursula
    Kuhlbusch, Thomas Aj
    Vossoughi, Mohammad
    Key, Timothy
    de Hoogh, Kees
    Hampel, Regina
    Peters, Annette
    Heinrich, Joachim
    Weinmayr, Gudrun
    Concin, Hans
    Nagel, Gabriele
    Ineichen, Alex
    Jacquemin, Bénédicte
    Stempfelet, Morgane
    Vilier, Alice
    Ricceri, Fulvio
    Sacerdote, Carlotta
    Pedeli, Xanthi
    Katsoulis, Michalis
    Trichopoulou, Antonia
    Brunekreef, Bert
    Katsouyanni, Klea
    Air Pollution and Non-Malignant Respiratory Mortality in 16 Cohorts within the ESCAPE Project2014In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 189, no 6, p. 684-696Article in journal (Refereed)
    Abstract [en]

    Rationale: Prospective cohort studies have shown that chronic exposure to particulate matter and traffic related air pollution is associated with reduced survival. However, the effects on non-malignant respiratory mortality are less studied and those reported are less consistent.

    Objectives: We have investigated the relationship of long-term exposure to air pollution and non-malignant respiratory mortality in 16 cohorts with individual level data within the multi center European Study of Cohorts for Air Pollution Effects (ESCAPE).

    Methods: Data from 16 ongoing cohort studies from Europe were used. The total number of subjects was 307,553. There were 1,559 respiratory deaths during follow-up.

    Measurements: Air pollution exposure was estimated by land use regression models at the baseline residential addresses of study participants and traffic-proximity variables were derived from geographical databases, following a standardized procedure within ESCAPE study. Cohort-specific hazard ratios obtained by Cox proportional hazard models from standardized individual cohort analyses were combined using meta-analyses. Main Results: We found no significant associations between air pollution exposure and non-malignant respiratory mortality. Most hazard ratios were slightly below unity, with the exception of the traffic-proximity indicators.

    Conclusions: In this study of 16 cohorts there was no association between air pollution exposure and non malignant respiratory mortality.

  • 12. Drager, Luciano F.
    et al.
    Yao, Qiaoling
    Hernandez, Karen L.
    Shin, Mi-Kyung
    Bevans-Fonti, Shannon
    Gay, Jason
    Sussan, Thomas E.
    Jun, Jonathan C.
    Myers, Allen C.
    Olivecrona, Gunilla
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Physiological chemistry.
    Schwartz, Alan R.
    Halberg, Nils
    Scherer, Philipp E.
    Semenza, Gregg L.
    Powell, David R.
    Polotsky, Vsevolod Y.
    Chronic Intermittent Hypoxia Induces Atherosclerosis via Activation of Adipose Angiopoietin-like 42013In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 188, no 2, p. 240-248Article in journal (Refereed)
    Abstract [en]

    Rationale: Obstructive sleep apnea is a risk factor for dyslipidemia and atherosclerosis, which have been attributed to chronic intermittent hypoxia (CIH). Intermittent hypoxia inhibits a key enzyme of lipoprotein clearance, lipoprotein lipase, and up-regulates a lipoprotein lipase inhibitor, angiopoietin-like 4 (Angptl4), in adipose tissue. The effects and mechanisms of Angptl4 up-regulation in sleep apnea are unknown. Objectives: To examine whether CIH induces dyslipidemia and atherosclerosis by increasing adipose Angptl4 via hypoxia-inducible factor-1 (HIF-1). Methods: ApoE(-/-) mice were exposed to intermittent hypoxia or air for 4 weeks while being treated with Angptl4-neutralizing antibody or vehicle. Measurements and Main Results: In vehicle-treated mice, hypoxia increased adipose Angptl4 levels, inhibited adipose lipoprotein lipase, increased fasting levels of plasma triglycerides and very low density lipoprotein cholesterol, and increased the size of atherosclerotic plaques. The effects of CIH were abolished by the antibody. Hypoxia-induced increases in plasma fasting triglycerides and adipose Angptl4 were not observed in mice with germline heterozygosity for a HIF-1 alpha knockout allele. Transgenic overexpression of HIF-1 alpha in adipose tissue led to dyslipidemia and increased levels of adipose Angptl4. In cultured adipocytes, constitutive expression of HIF-1 alpha increased Angptl4 levels, which was abolished by siRNA. Finally, in obese patients undergoing bariatric surgery, the severity of nocturnal hypoxemia predicted Angptl4 levels in subcutaneous adipose tissue. Conclusions: HIF-1-mediated increase in adipose Angptl4 and the ensuing lipoprotein lipase in activation may contribute to atherosclerosis in patients with sleep apnea.

  • 13. Gryparis, Alexandros
    et al.
    Forsberg, Bertil
    Umeå University, Faculty of Medicine, Public Health and Clinical Medicine, Occupational and Enviromental Medicine.
    Katsouyanni, Klea
    Analitis, Antonis
    Touloumi, Giota
    Schwartz, Joel
    Samoli, Evangelia
    Medina, Sylvia
    Anderson, H Ross
    Niciu, Emilia Maria
    Wichmann, H-Erich
    Kriz, Bohumir
    Kosnik, Mitja
    Skorkovsky, Jiri
    Vonk, Judith M
    Dörtbudak, Zeynep
    Acute effects of ozone on mortality from the "air pollution and health: a European approach" project.2004In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 170, no 10, p. 1080-7Article in journal (Refereed)
    Abstract [en]

    In the Air Pollution and Health: A European Approach (APHEA2) project, the effects of ambient ozone concentrations on mortality were investigated. Data were collected on daily ozone concentrations, the daily number of deaths, confounders, and potential effect modifiers from 23 cities/areas for at least 3 years since 1990. Effect estimates were obtained for each city with city-specific models and were combined using second-stage regression models. No significant effects were observed during the cold half of the year. For the warm season, an increase in the 1-hour ozone concentration by 10 mug/m3 was associated with a 0.33% (95% confidence interval [CI], 0.17-0.52) increase in the total daily number of deaths, 0.45% (95% CI, 0.22-0.69) in the number of cardiovascular deaths, and 1.13% (95% CI, 0.62-1.48) in the number of respiratory deaths. The corresponding figures for the 8-hour ozone were similar. The associations with total mortality were independent of SO2 and particulate matter with aerodynamic diameter less than 10 mum (PM10) but were somewhat confounded by NO2 and CO. Individual city estimates were heterogeneous for total (a higher standardized mortality rate was associated with larger effects) and cardiovascular mortality (larger effects were observed in southern cities). The dose-response curve of ozone effects on total mortality during the summer did not deviate significantly from linearity.

  • 14. Kuo, Chih-Hsi Scott
    et al.
    Pavlidis, Stelios
    Loza, Matthew
    Baribaud, Fred
    Rowe, Anthony
    Pandis, Ioannis
    Hoda, Uruj
    Rossios, Christos
    Sousa, Ana
    Wilson, Susan J
    Howarth, Peter
    Dahlen, Barbro
    Dahlen, Sven-Erik
    Chanez, Pascal
    Shaw, Dominick
    Krug, Norbert
    Sandström, Thomas
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    De Meulder, Bertrand
    Lefaudeux, Diane
    Fowler, Stephen
    Fleming, Louise
    Corfield, Julie
    Auffray, Charles
    Sterk, Peter J
    Djukanovic, Ratko
    Guo, Yike
    Adcock, Ian M
    Chung, Kian Fan
    A transcriptome-driven analysis of epithelial brushings and bronchial biopsies to define asthma phenotypes in U-BIOPRED2017In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 194, no 4, p. 443-455Article in journal (Refereed)
    Abstract [en]

    RATIONALE AND OBJECTIVES: Asthma is a heterogeneous disease driven by diverse immunologic and inflammatory mechanisms. We used transcriptomic profiling of airway tissues to help define asthma phenotypes.

    METHODS: The transcriptome from bronchial biopsies and epithelial brushings of 107 moderate-to-severe asthmatics were annotated by gene-set variation analysis (GSVA) using 42 gene-signatures relevant to asthma, inflammation and immune function. Topological data analysis (TDA) of clinical and histological data was used to derive clusters and the nearest shrunken centroid algorithm used for signature refinement.

    RESULTS: 9 GSVA signatures expressed in bronchial biopsies and airway epithelial brushings distinguished two distinct asthma subtypes associated with high expression of T-helper type 2 (Th-2) cytokines and lack of corticosteroid response (Group 1 and Group 3). Group 1 had the highest submucosal eosinophils, high exhaled nitric oxide (FeNO) levels, exacerbation rates and oral corticosteroid (OCS) use whilst Group 3 patients showed the highest levels of sputum eosinophils and had a high BMI. In contrast, Group 2 and Group 4 patients had an 86% and 64% probability of having non-eosinophilic inflammation. Using machine-learning tools, we describe an inference scheme using the currently-available inflammatory biomarkers sputum eosinophilia and exhaled nitric oxide levels along with OCS use that could predict the subtypes of gene expression within bronchial biopsies and epithelial cells with good sensitivity and specificity.

    CONCLUSION: This analysis demonstrates the usefulness of a transcriptomic-driven approach to phenotyping that segments patients who may benefit the most from specific agents that target Th2-mediated inflammation and/or corticosteroid insensitivity.

  • 15.
    Larsson, Niklas
    et al.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Anaesthesiology.
    Gouveia-Figueira, Sandra
    Umeå University.
    Claesson, Jonas
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Anaesthesiology.
    Lehtipalo, Stefan
    Umeå University.
    Behndig, Anders
    Umeå University, Faculty of Medicine, Department of Clinical Sciences, Ophthalmology.
    Tyden, Jonas
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Anaesthesiology.
    Johansson, Joakim
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Anaesthesiology.
    Pinto, Rui
    Umeå University.
    Nording, M. L.
    Umeå University.
    Oxylipin Profiling In The Acute Respiratory Distress Syndrome2016In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 193, article id A4419Article in journal (Refereed)
  • 16. Laveneziana, Pierantonio
    et al.
    Webb, Katherine A
    Ora, Josuel
    Wadell, Karin
    Respiratory Investigation Unit, Department of Medicine, Queen's University and Kingston General Hospital, Kingston, Ontario, Canada.
    O'Donnell, Denis E
    Evolution of dyspnea during exercise in COPD: impact of critical volume constraints2011In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 184, no 12, p. 1367-1373Article in journal (Refereed)
    Abstract [en]

    Rationale: Patients with COPD primarily describe their exertional dyspnea using descriptors alluding to increased effort or work of breathing and unsatisfied inspiration or inspiratory difficulty. Objective: The purpose of this study was to examine the impact of changes in dynamic respiratory mechanics during incremental (INCR) and high-intensity constant work-rate (CWR) cycle exercise on the evolution of dyspnea intensity and its major qualitative dimensions in patients with moderate-to-severe COPD. Methods: Sixteen COPD subjects performed symptom-limited INCR and CWR cycle exercise tests. Measurements included: dyspnea intensity and qualitative descriptors, breathing pattern, operating lung volumes and esophageal pressure (Pes). Measurements and Main Results: During both exercise tests, there was an inflection in the relation between tidal volume (VT) and ventilation. This inflection occurred significantly earlier in time during CWR versus INCR exercise but at a similar ventilation, VT and tidal Pes swing. Beyond this inflection, there was no further change in VT despite a continued increase in ventilation and tidal Pes. During both tests, "work/effort" was the dominant dyspnea descriptor selected up to the inflection point, whereas after this point dyspnea intensity and the selection frequency of "unsatisfied inspiration" rose sharply. CONCLUSIONS: Regardless of the exercise test protocol, the inflection (or plateau) in the VT response marked the point where dyspnea intensity rose abruptly and there was a transition in the dominant qualitative descriptor choice from "work/effort" to "unsatisfied inspiration". Intensity and quality of dyspnea evolve separately and are strongly influenced by mechanical constraints on VT expansion during exercise in COPD.

  • 17.
    Linder, Robert
    et al.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Pourazar, Jamshid
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Blomberg, Anders
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Lindberg, Anne
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    Increased Mmp-9/timp-1 Ratio Is Associated With Increased Mortality-Report From The Obstructive Lung Disease In Northern Sweden (olin) COPD Study2015In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 191, article id A2312Article in journal (Other academic)
  • 18.
    Lundbäck, Bo
    et al.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine. University of Gothenburg, Institute of Medicine/Krefting Research Centre, Gothenburg, Sweden..
    Backman, Helena
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine.
    Calverley, Peter M A
    University of Liverpool, Liverpool, United Kingdom of Great Britain and Northern Ireland..
    Lung Function through the PRISm: Spreading Light or Creating Confusion?2018In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 198, no 11, p. 1358-1360Article in journal (Refereed)
  • 19. Macsali, Ferenc
    et al.
    Svanes, Cecilie
    Sothern, Robert B.
    Benediktsdottirs, Bryndis
    Bjorge, Line
    Dratva, Julia
    Franklin, Karl A.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Holm, Mathias
    Janson, Christer
    Johannessen, Ane
    Lindberg, Eva
    Omenaas, Ernst R.
    Schlunssen, Vivi
    Zemp, Elizabeth
    Real, Francisco Gomez
    Menstrual Cycle and Respiratory Symptoms in a General Nordic-Baltic Population2013In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 187, no 4, p. 366-373Article in journal (Refereed)
    Abstract [en]

    Rationale: There is little knowledge of variations in respiratory symptoms during the menstrual cycle in a general population, and potential modifying factors are not investigated. Objectives: To investigate menstrual cycle variation in respiratory symptoms in a large general population, using chronobiology methodology, and stratifying by body mass index (BMI), smoking, and asthma status. Methods: A total of 3,926 women with regular cycles less than or equal to 28 days and not taking exogenous sex hormones answered a postal questionnaire regarding the first day of their last menstruation and respiratory symptoms in the last 3 days. Moving 4-day means were computed to smooth uneven records of daily sampling; best-fitting 28-day composite cosine curves were applied to each time series to describe rhythmicity. Measurements and Main Results: Significant rhythmic variations over the menstrual cycle were found in each symptom for all subjects and subgroups. Wheezing was higher on cycle Days 10-22, with a midcycle dip near the time of putative ovulation (approximately Days 14-16)-in most subgroups. Shortness of breath was higher on days 7-21, with a dip just before midcycle in many subgroups. Cough was higher just after putative ovulation for subjects with asthma, BMI greater than or equal to 23 kg/m(2), and smokers, or just before ovulation and menses onset for low symptomatic subgroups. Conclusions: Respiratory symptoms varied significantly during the menstrual cycle and were most frequent from the midluteal to mid-follicular stages, often with a dip near the time of ovulation. The patterns varied by BMI, smoking, and asthma status. These relations link respiratory symptoms with hormonal changes through the menstrual cycle and imply a potential for individualized chronotherapy for respiratory diseases.

  • 20.
    Pourazar, Jamshid
    et al.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Behndig, Annelie F.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Helleday, Ragnberth
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine.
    Muala, Ala
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine.
    Rankin, Gregory
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Sehlstedt, Maria
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Unosson, Jon
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine.
    Langrish, J. P.
    Blomberg, Anders
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Sandström, Thomas
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Bosson, Jenny A.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Airway Inflammatory Response In Healthy Subjects Following Chamber Exposure To 100% Rme Biodiesel2015In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 191, article id A5252Article in journal (Other academic)
  • 21.
    Rankin, Gregory D.
    et al.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Rasmuson, Johan
    Pourazar, Jamshid
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Blomberg, Anders
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Ahlm, Clas
    Umeå University, Faculty of Medicine, Department of Clinical Microbiology, Infectious Diseases.
    Immunolocalisation Of Puumala Hantavirus In Human Endobronchial Biopsies2015In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 191, article id A3793Article in journal (Other academic)
  • 22.
    Rankin, Gregory D.
    et al.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Thomas, S.
    Baharom, F.
    Pourazar, Jamshid
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Blomberg, Anders
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Ahlm, Clas
    Umeå University, Faculty of Medicine, Department of Clinical Microbiology, Infectious Diseases.
    Smed-Sorensen, A.
    Distribution Of Human Respiratory Dendritic Cell Subsets At Steady State Differs In Specific Compartments Of The Airways2015In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 191, article id A1300Article in journal (Other academic)
  • 23.
    Rankin, Gregory
    et al.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine.
    Kabele, Mikael
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine.
    Sandström, T.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine.
    Brown, R.
    Macefield, V. G.
    Bosson, J. A.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine.
    Diesel exhaust exposure increases muscle sympathetic nerve activity Study: a human exposure2018In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 197Article in journal (Other academic)
  • 24. Salvi, Sundeep S.
    et al.
    Nordenhäll, Charlotta
    Blomberg, Anders
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Rudell, Bertil
    Pourazar, Jamshid
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Kelly, Frank J.
    Wilson, Susan
    Sandström, Thomas
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Holgate, Stephen T.
    Frew, Anthony J.
    Acute exposure to diesel exhaust increases IL-8 and Gro-alpha production in healthy human airways2000In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 161, no 2, p. 550-557Article in journal (Refereed)
  • 25. Svanes, Øistein
    et al.
    Bertelsen, Randi J.
    Lygre, Stein H. L.
    Carsin, Anne E.
    Antó, Josep M.
    Forsberg, Bertil
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine.
    García-García, José M.
    Gullón, José A.
    Heinrich, Joachim
    Holm, Mathias
    Kogevinas, Manolis
    Urrutia, Isabel
    Leynaert, Bénédicte
    Moratalla, Jesús M.
    Le Moual, Nicole
    Lytras, Theodore
    Norbäck, Dan
    Nowak, Dennis
    Olivieri, Mario
    Pin, Isabelle
    Probst-Hensch, Nicole
    Schlünssen, Vivi
    Sigsgaard, Torben
    Skorge, Trude D.
    Villani, Simona
    Jarvis, Debbie
    Zock, Jan P.
    Svanes, Cecilie
    Cleaning at Home and at Work in Relation to Lung Function Decline and Airway Obstruction2018In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 197, no 9, p. 1157-1163Article in journal (Refereed)
    Abstract [en]

    Rationale: Cleaning tasks may imply exposure to chemical agents with potential harmful effects to the respiratory system, and increased risk of asthma and respiratory symptoms among professional cleaners and in persons cleaning at home has been reported. Long-term consequences of cleaning agents on respiratory health are, however, not well described.

    Objectives: This study aimed to investigate long-term effects of occupational cleaning and cleaning at home on lung function decline and airway obstruction.

    Methods: The European Community Respiratory Health Survey (ECRHS) investigated a multicenter population-based cohort at three time points over 20 years. A total of 6,235 participants with at least one lung function measurement from 22 study centers, who in ECRHS II responded to questionnaire modules concerning cleaning activities between ECRHS I and ECRHS II, were included. The data were analyzed with mixed linear models adjusting for potential confounders.

    Measurements and Main Results: As compared with women not engaged in cleaning (ΔFEV1 = −18.5 ml/yr), FEV1 declined more rapidly in women responsible for cleaning at home (−22.1; P = 0.01) and occupational cleaners (−22.4; P = 0.03). The same was found for decline in FVC (ΔFVC = −8.8 ml/yr; −13.1, P = 0.02; and −15.9, P = 0.002; respectively). Both cleaning sprays and other cleaning agents were associated with accelerated FEV1 decline (−22.0, P = 0.04; and −22.9, P = 0.004; respectively). Cleaning was not significantly associated with lung function decline in men or with FEV1/FVC decline or airway obstruction.

    Conclusions: Women cleaning at home or working as occupational cleaners had accelerated decline in lung function, suggesting that exposures related to cleaning activities may constitute a risk to long-term respiratory health.

  • 26. Triebner, Kai
    et al.
    Matulonga, Bobette
    Johannessen, Ane
    Suske, Sandra
    Benediktsdottir, Bryndis
    Demoly, Pascal
    Dharmage, Shyamali C.
    Franklin, Karl A.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences.
    Garcia-Aymerich, Judith
    Gullon Blanco, Jose Antonio
    Heinrich, Joachim
    Holm, Mathias
    Jarvis, Debbie
    Jogi, Rain
    Lindberg, Eva
    Moratalla Rovira, Jesus Martinez
    Muniozguren Agirre, Nerea
    Pin, Isabelle
    Probst-Hensch, Nicole
    Puggini, Luca
    Raherison, Chantal
    Luis Sanchez-Ramos, Jose
    Schlunssen, Vivi
    Sunyer, Jordi
    Svanes, Cecilie
    Hustad, Steinar
    Leynaert, Benedicte
    Gomez Real, Francisco
    Menopause Is Associated with Accelerated Lung Function Decline2017In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 195, no 8, p. 1058-1065Article in journal (Refereed)
    Abstract [en]

    Rationale: Menopause is associated with changes in sex hormones, which affect immunity, inflammation, and osteoporosis and may impair lung function. Lung function decline has not previously been investigated in relation to menopause. Objectives: To study whether lung function decline, assessed by FVC and FEV1, is accelerated in women who undergo menopause. Methods: The population-based longitudinal European Community Respiratory Health Survey provided serum samples, spirometry, and questionnaire data about respiratory and reproductive health from three study waves (n = 1,438). We measured follicle-stimulating hormone and luteinizing hormone and added information on menstrual patterns to determine menopausal status using latent class analysis. Associations with lung function decline were investigated using linear mixed effects models, adjusting for age, height, weight, pack-years, current smoking, age at completed full-time education, spirometer, and including study center as random effect. Measurements and Main Results: Menopausal status was associated with accelerated lung function decline. The adjusted mean FVC decline was increased by -10.2 ml/yr (95% confidence interval [CI], -13.1 to -7.2) in transitional women and -12.5 ml/yr (95% CI, -16.2 to -8.9) in post-menopausal women, compared with women menstruating regularly. The adjusted mean FEV1 decline increased by -3.8 ml/yr (95% CI, -6.3 to -2.9) in transitional women and -5.2 ml/yr (95% CI, -8.3 to -2.0) in post-menopausal women. Conclusions: Lung function declined more rapidly among transitional and post-menopausal women, in particular for FVC, beyond the expected age change. Clinicians should be aware that respiratory health often deteriorates during reproductive aging.

  • 27.
    Törnqvist, Håkan
    et al.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Mills, Nicholas L
    Gonzalez, Manuel
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    Miller, Mark R
    Robinson, Simon D
    Megson, Ian L
    Macnee, William
    Donaldson, Ken
    Söderberg, Stefan
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Cardiology.
    Newby, David E
    Sandström, Thomas
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Blomberg, Anders
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Persistent endothelial dysfunction in humans after diesel exhaust inhalation.2007In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 176, no 4, p. 395-400Article in journal (Refereed)
  • 28.
    Törnqvist, Håkan
    et al.
    Umeå University, Faculty of Medicine, Public Health and Clinical Medicine, Pulmonary Medicine.
    Mills, NL
    Gonzalez, M
    Robinson, SD
    Boon, NA
    MacNee, W
    Donaldson, K
    Newby, DE
    Sandström, T
    Blomberg, A
    Prolonged endothelial dysfunction following diesel exhaust inhalation2007In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 176, no 4, p. 395-400Article in journal (Refereed)
  • 29.
    Uski, O.
    et al.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine.
    Rankin, Gregory
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    Lindgren, R.
    Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics.
    Lopez, N.
    Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics.
    Blomberg, Anders
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine.
    Muala, Ala
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine.
    Bosson, Jenny A.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine.
    Sandström, T.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine.
    In vitro toxicity of particulate matter derived from biomass cook stoves used in developing countries2018In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 197Article in journal (Other academic)
  • 30. Vanderveken, Olivier M
    et al.
    Devolder, Annick
    Umeå University, Faculty of Medicine, Department of Odontology, Ortodontics.
    Marklund, Marie
    Umeå University, Faculty of Medicine, Department of Odontology.
    Boudewyns, An N
    Braem, Marc J
    Okkerse, Walter
    Verbraecken, Johan A
    Franklin, Karl
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine. Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    De Backer, Wilfried A
    Van de Heyning, Paul H
    Comparison of a custom-made and a thermoplastic oral appliance for the treatment of mild sleep apnea2008In: American Journal of Respiratory and Critical Care Medicine, ISSN 1073-449X, E-ISSN 1535-4970, Vol. 178, no 2, p. 197-202Article in journal (Refereed)
    Abstract [en]

    Rationale: The efficacy of immediate adaptation of mandibular advancement devices made of thermoplastic material as a treatment option for sleep-disordered breathing (SDB) has been demonstrated in clinical studies. To date, there have been no studies comparing the efficacy of such prefabricated devices with custom-made devices.

    Objectives: Our purpose was to compare the efficacy of both types of devices in patients with SDB.

    Methods: A randomized controlled cross-over trial, comprising 4 months of treatment with a thermoplastic and a custom-made device, with a 1-month washout interval.

    Measurements and Main Results: A total of 35 patients (29 males; age, 49 ± 9 yr; apnea–hypopnea index [AHI], 13 ± 11 events/h; body mass index, 28 ± 4 kg/m2) completed the protocol. AHI was only reduced with the custom-madedevice (P = 0.005). In addition, this device reduced snoring to a greater extent than the thermoplastic device. The success rate was higher with the custom-made device (60 vs. 31%; P = 0.02). One-third of the patients demonstrated compliance failure with the thermoplastic device, mainly because of insufficient overnight retention. Total failure rate with the thermoplastic device was 69%, whereas the majority (63%) of these were successfully treated with the custom-made device. At the end of the study, 82% of the patients preferred the custom-made device, and 9% had no preference (P < 0.0001).

    Conclusions: In this study, a custom-made device turned out to be more effective than a thermoplastic device in the treatment of SDB. Our results suggest that the thermoplastic device cannot be recommended as a therapeutic option nor can it be used as a screening tool to find good candidates for mandibular advancement therapy.

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