April 13, 2016

Serum decoy receptor 3 is a biomarker for disease severity in nonatopic asthma patients

Background/Purpose

Decoy receptor 3 (DcR3), a soluble receptor of the tumor necrosis factor receptor superfamily, is a pleiotropic immunomodulator. The aim of this study was to investigate serum DcR3 levels in atopic and nonatopic asthma patients.

April 12, 2016

Asthma in furniture and wood processing workers: a systematic review

  • C. M. Barber1,2
  • +Author Affiliations
    1. 1 Centre for Workplace Health, Health and Safety LaboratoryBuxton SK17 9JN, UK,
    2. 2 Centre for Workplace Health, University of SheffieldSheffield SK17 9JN, UK,
    3. 3 Analytical Sciences Unit, Health and Safety LaboratoryBuxton SK17 9JN, UK.

    Abstract

    Background Wood dust is a common cause of occupational asthma. There is potential for high exposure to wood dust during furniture and wood manufacturing processes.

    Aims To evaluate the evidence for non-neoplastic respiratory ill health associated with work in the furniture and wood manufacturing sector.

    April 11, 2016

    Asthma in the elderly: the effect of choline supplementation

    Abstract

    Background

    Asthma in the elderly is poorly understood as very few studies have included these patients. DNA methylation can affect the expression of asthma susceptibility genes. Methyl groups can be produced through a choline dependent pathway. Asthmatics have decreased serum choline. We studied the effect of choline supplementation in elderly asthmatics and associations between different parameters at baseline.

    The cytokine interleukin-26 as a biomarker in pediatric asthma

    OPEN ACCESS

    • Jon R. Konradsen,
    • Björn Nordlund,
    • Bettina Levänen,
    • Gunilla Hedlin and
    • Anders LindenEmail author

    Abstract

    In this pilot study, we examined associations between local interleukin (IL)-26, disease severity and biomarkers of Th2-mediated inflammation in a well-defined cohort of pediatric patients (14 years median age, 41 % females) with controlled (n = 28) or uncontrolled (n = 48) asthma.

    Detailed analysis of sputum and systemic inflammation in asthma phenotypes: are paucigranulocytic asthmatics really non-inflammatory?

    • Sophie DemarcheEmail author,
    • Florence Schleich,
    • Monique Henket,
    • Virginie Paulus,
    • Thierry Van Hees and
    • Renaud Louis
    DOI: 10.1186/s12890-016-0208-2

    Abstract

    Background

    The technique of induced sputum has allowed to subdivide asthma patients into inflammatory phenotypes according to their level of granulocyte airway infiltration. There are very few studies which looked at detailed sputum and blood cell counts in a large cohort of asthmatics divided into inflammatory phenotypes. The purpose of this study was to analyze sputum cell counts, blood leukocytes and systemic inflammatory markers in these phenotypes, and investigate how those groups compared with healthy subjects.

    April 10, 2016

    Eosinophilic esophagitis–linked calpain 14 is an IL-13–induced protease that mediates esophageal epithelial barrier impairment

    JCI Insight. 2016;1(4):e86355. doi:10.1172/jci.insight.86355

    First published April 7, 2016 - 
    Abstract
    We recently identified a genome-wide genetic association of eosinophilic esophagitis (EoE) at 2p23 spanning the calpain 14 (CAPN14) gene, yet the causal mechanism has not been elucidated. We now show that recombinant CAPN14 cleaves a calpain-specific substrate and is inhibited by 4 classical calpain inhibitors: MDL-28170, acetyl-calpastatin, E-64, and PD151746. CAPN14 is specifically induced (>100-fold) in esophageal epithelium after IL-13 treatment.

    April 9, 2016

    Nasal polyps in patients with asthma: prevalence, impact, and management challenges


    Authors Langdon C, Mullol J
    Received 1 October 2015
    Accepted for publication 5 January 2016
    Published 14 March 2016 Volume 2016:9 Pages 45—53
    Cristobal Langdon,1,2 Joaquim Mullol1–3

    1Rhinology Unit and Smell Clinic, Otorhinolaryngology Department, Hospital Clínic, 2Clinical and Experimental Respiratory Immunoallergy (IRCE), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 3Centre for Biomedical Research in Respiratory Diseases (CIBERES), Barcelona, Catalonia, Spain

    Abstract: Patients with chronic rhinosinusitis with nasal polyps (CRSwNP) often have coexisting asthma under the concept of “United Airway Disease”, being the combination of both diseases, which is one of the most challenging phenotypes to treat.

    April 8, 2016

    Trends and threshold exceedances analysis of airborne pollen concentrations in Metropolitan Santiago Chile

    Logo of plosonePLoS OneView this ArticleSubmit to PLoSGet E-mail AlertsContact UsPublic Library of Science (PLoS)
    PLoS One. 2015; 10(5): e0123077.
    Gerardo Chowell, Academic Editor
    Abstract
    Pollen is one of the primary causes of allergic rhinoconjunctivitis in urban centers. In the present study, the concentrations of 39 different pollens in the Santiago de Chile metropolitan area over the period 2009–2013 are characterized. The pollen was monitored daily using Burkard volumetric equipment.