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COPD, asthma, respiratory

Caroline Anne Mitchell, Alice Pitt, Joe Hulin, Rod Lawson, Fleur Ashby, Ivan Appelqvist, Brigitte Delaney
OBJECTIVES: Increased rates of illicit drug inhalation are thought to expose opiate misusers (OMUs) to an enhanced risk of respiratory health problems. This pilot study aimed to determine the feasibility of undertaking respiratory screening of OMUs in a community clinic. SETTING: Single-centre UK community substance misuse clinic. PARTICIPANTS: All clinic attendees receiving treatment for opiate misuse were eligible to participate. 36 participants (mean age=37) were recruited over a 5-week period...
October 14, 2016: BMJ Open
Mojgan Najafzadeh, Charmaine Normington, Badie K Jacob, Mohammad Isreb, Rajendran C Gopalan, Diana Anderson
Non-steroidal anti-inflammatory drugs (NSAIDs) inhibit COX enzyme activity which affects the inflammatory response. Inflammation is associated with increasing cancer incidence. Pre-clinical and clinical studies have shown that NSAID treatment could cause an anti-tumor effect in cancers. In the present study, blood was taken from healthy individuals (n = 17) and patients with respiratory diseases or lung cancer (n = 36). White blood cells (WBC) were treated with either a micro-suspension, i.e., bulk (B) or nano-suspension (N) of aspirin (ASP) or ibuprofen (IBU) up to 500 μg/ml in the comet assay and up to 125 μg/ml in the micronucleus assay...
2016: Frontiers in Molecular Biosciences
Joanna C Watts, Claude S Farah, Leigh M Seccombe, Blake M Handley, Robin E Schoeffel, Amy Bertolin, Jessica Dame Carroll, Gregory G King, Cindy Thamrin
The forced oscillation technique (FOT) is gaining clinical acceptance, facilitated by more commercial devices and clinical data. However, the effects of variations in testing protocols used in FOT data acquisition are unknown. We describe the effect of duration of data acquisition on FOT results in subjects with asthma, chronic obstructive pulmonary disease (COPD) and healthy controls. FOT data were acquired from 20 healthy, 22 asthmatic and 18 COPD subjects for 60 s in triplicate. The first 16, 30 and 60 s of each measurement were analysed to obtain total, inspiratory and expiratory resistance of respiratory system (Rrs) and respiratory system reactance (Xrs) at 5 and 19 Hz...
April 2016: ERJ Open Research
B P de São José, P A M Camargos, E D Bateman, C M A Botelho, J G F de Seixas Maciel, E V Mancuzo, R de Amorim Corrêa
BACKGROUND: There are few reports on the ability of primary care physicians (PCPs) to diagnose acute and chronic respiratory diseases. We assessed the agreement between PCPs and pulmonologists in diagnosing pulmonary tuberculosis (TB), chronic obstructive pulmonary disease (COPD), asthma and acute respiratory infections (ARI). SETTING: Metropolitan Region of Belo Horizonte, State of Minas Gerais, Brazil. METHODS: PCPs filled out a symptom-based questionnaire for adult patients presenting with respiratory symptoms...
October 2016: International Journal of Tuberculosis and Lung Disease
Ching Kuo Tan, Gui Quan Say, James B Geake
Tiotropium bromide is a long-acting inhaled muscarinic antagonist used in patients with chronic respiratory disease. It has been available since 2002 as a single-dose dry powder formulation via the HandiHaler(®) dry powder inhaler (DPI) device, and since 2007 as the Respimat(®) SoftMist™ Inhaler (SMI). The latter is a novel method of medication delivery that utilizes a multidose aqueous solution to deliver the drug as a fine mist. Potential benefits include more efficient drug deposition throughout the respiratory tract, reduced systemic exposure, and greater ease of use and patient satisfaction compared with the use of HandiHaler DPI...
2016: Therapeutics and Clinical Risk Management
Reena Berman, Di Jiang, Qun Wu, Connor R Stevenson, Niccolette R Schaefer, Hong Wei Chu
BACKGROUND: MUC18 is upregulated in the lungs of asthma and COPD patients. It has been shown to have pro-inflammatory functions in cultured human airway epithelial cells during viral infections and in mice during lung bacterial infections. However, the in vivo role of MUC18 in the context of viral infections remains poorly understood. The goal of this study is to define the in vivo function of MUC18 during respiratory rhinovirus infection. METHODS: Muc18 wild-type (WT) and knockout (KO) mice were infected with human rhinovirus 1B (HRV-1B) and sacrificed after 1 day to determine the inflammatory and antiviral responses...
2016: PloS One
Michael B Cheung, Viviana Sampayo-Escobar, Ryan Green, Martin L Moore, Subhra Mohapatra, Shyam S Mohapatra
Respiratory syncytial virus (RSV) has been reported to infect human mesenchymal stem cells (MSCs) but the consequences are poorly understood. MSCs are present in nearly every organ including the nasal mucosa and the lung and play a role in regulating immune responses and mediating tissue repair. We sought to determine whether RSV infection of MSCs enhances their immune regulatory functions and contributes to RSV-associated lung disease. RSV was shown to replicate in human MSCs by fluorescence microscopy, plaque assay, and expression of RSV transcripts...
2016: PloS One
Carla S Andrews, Shingo Matsuyama, Byung-Cheol Lee, Jian-Dong Li
Upper respiratory tract inflammatory diseases such as asthma and chronic obstructive pulmonary diseases (COPD) affect more than one-half billion people globally and are characterized by chronic inflammation that is often exacerbated by respiratory pathogens such as nontypeable Haemophilus influenzae (NTHi). The increasing numbers of antibiotic-resistant bacterial strains and the limited success of currently available pharmaceuticals used to manage the symptoms of these diseases present an urgent need for the development of novel anti-inflammatory therapeutic agents...
September 28, 2016: Scientific Reports
Dhamotharan Pattarayan, Rajesh K Thimmulappa, Vilwanathan Ravikumar, Subbiah Rajasekaran
Lack of markers of subclinical disease state and clinical phenotype other than pulmonary function test has made the diagnosis and interventions of environmental respiratory diseases a major challenge. MicroRNAs (miRNAs), small non-coding single stranded RNAs, have emerged as potential disease-modifier in various environmental respiratory diseases. They can also be found in various body fluids and are remarkably stable. Because of their high stability, disease-specific expression, and the ease to detect and quantify them have raised the potential of miRNAs in body fluids to be useful clinical diagnostic biomarkers for lung disease phenotyping...
September 27, 2016: Clinical Reviews in Allergy & Immunology
Annemarie L Lee, Karl Zabjek, Roger S Goldstein, Dina Brooks
PURPOSE: Changes in posture in individuals with an obstructive respiratory disease have been reported, but the extent of these deviations and their clinical significance is not well understood. This study aimed to systematically review the literature of the skeletal structural alignment in children and adults with an obstructive respiratory disease, describe the measurement techniques used, and determine the clinical relevance of any alternations. METHODS: Observational cohort or cross-sectional studies of postural assessment were identified, with 2 reviewers independently assessing study quality...
September 26, 2016: Journal of Cardiopulmonary Rehabilitation and Prevention
Carlo Pomari, Luisa Mauroner, Simona Paiano, Luca Rosario Assante, Luca Bertolaccini, Giacomo Ruffo, Paride Mainardi, Paolo Bocus, Andrea Geccherle, Sergio Ivan Albanese, Stefano Ciaffoni
BACKGROUND: Pepsin plays a role in gastroesophageal reflux (GER). Aims of this study were to verify if pepsin could be the cause of frequent bronchial exacerbations and to check if the persistence of chronic respiratory symptoms were correlated with pre-existing respiratory diseases. METHODS: From January to May 2016, 42 patients underwent a diagnostic bronchoscopy. All patients had a history of at least one bronchial exacerbation during the previous year. Bronchial lavage fluid specimens were obtained...
August 2016: Annals of Translational Medicine
Seiichi Kobayashi, Masakazu Hanagama, Shinsuke Yamanda, Masatsugu Ishida, Masaru Yanai
BACKGROUND: The clinical phenotypes and underlying mechanisms of asthma-COPD overlap syndrome (ACOS) remain elusive. This study aimed to investigate a comparison of COPD patients with and without ACOS, focusing on inflammatory biomarkers, in an outpatient COPD cohort. METHODS: We conducted a cross-sectional study analyzing prospectively collected data from the Ishinomaki COPD Network registry. All participants were diagnosed with COPD, confirmed by using spirometry, and were aged 40-90 years and former smokers...
2016: International Journal of Chronic Obstructive Pulmonary Disease
Marieke B A Dijkema, Robert T van Strien, Saskia C van der Zee, Sanne F Mallant, Paul Fischer, Gerard Hoek, Bert Brunekreef, Ulrike Gehring
BACKGROUND: Air pollution episodes are associated with increased cardiopulmonary hospital admissions. Cohort studies showed associations of spatial variation in traffic-related air pollution with respiratory and cardiovascular mortality. Much less is known in particular about associations with cardiovascular morbidity. We explored the relation between spatial variation in nitrogen dioxide (NO2) concentrations and cardiopulmonary hospital admissions. METHODS: This ecological study was based on hospital admissions data (2001-2004) from the National Medical Registration and general population data for the West of the Netherlands (population 4...
September 16, 2016: Environmental Research
Tetyana Kendzerska, Teresa M To, Shawn D Aaron, M Diane Lougheed, Mohsen Sadatsafavi, J Mark FitzGerald, Andrea S Gershon
BACKGROUND: Little is known about the natural history of chronic obstructive pulmonary disease (COPD) that has developed from airway remodeling due to asthma, as compared with other COPD phenotypes. OBJECTIVE: We compared long-term health outcomes of individuals with COPD with and without a history of asthma in a population-based cohort study. METHODS: All individuals with physician-diagnosed COPD between the ages 40 and 55 years from 2009 and 2011 were identified and followed until March 2013 through provincial health administrative data (Ontario, Canada)...
August 28, 2016: Journal of Allergy and Clinical Immunology
Janette K Burgess, Thais Mauad, Gavin Tjin, Jenny C Karlsson, Gunilla Westergren-Thorsson
The lung is built of airways and lung parenchyma and the extracellular matrix (ECM) contains the main building blocks of both components. The ECM provides physical support and stability to the lung, and as such it has in the past been regarded as an inert structure. More recent research has provided novel insights revealing that ECM is also a bioactive environment that orchestrates the cellular responses in its environs. Changes in the ECM in the airway or parenchymal tissues are now recognised in the pathological profile of many respiratory diseases, including asthma, Chronic Obstructive Pulmonary Disease (COPD) and Idiopathic Pulmonary Fibrosis (IPF)...
September 14, 2016: Journal of Pathology
M J Connolly, A M Yohannes
Respiratory diseases are common in older people. However, the impact of comorbid depression in older patients with chronic obstructive pulmonary disease (COPD) and asthma has not been fully explored. This narrative review examines the impact of comorbid depression and its management in COPD and asthma in older adults. The causes of depression in patients with COPD and asthma are multifactorial and include physical, physiological and behavioural factors. Depression is associated with hospital readmission in older adults with asthma and COPD...
October 2016: Maturitas
Miguel Román-Rodríguez, Job F M van Boven, Freya Vargas, Cecilia C Contreras, Gema Lamelas, Salvador Gestoso, Miguel Góngora, Maite Corredor, Magdalena Esteva
BACKGROUND: There is a worldwide over-prescription of inhaled corticosteroids (ICS) in patients with chronic obstructive pulmonary disease (COPD), off-label prescribing, and unnecessary prescription of high doses. OBJECTIVES: Our aim was to assess the prescription rate of ICS and to identify sociodemographic and clinical factors associated with ICS prescription among patients with COPD, treated in Balearic primary healthcare. METHODS: This cross-sectional study included all patients with a clinical COPD diagnosis, who attended a primary care centre of the Balearic Islands (Spain) during 2012...
September 6, 2016: European Journal of General Practice
Job F M van Boven, Dermot Ryan, Michelle N Eakin, Giorgio W Canonica, Aji Barot, Juliet M Foster
Adherence to medication comprises a multiphased temporal process involving (1) initiation of prescribed therapy, (2) implementation as prescribed, and (3) subsequent persistence. Medication adherence remains suboptimal in most patients with long-term respiratory conditions such as asthma and chronic obstructive pulmonary disease (COPD). Interventions have been shown to effectively improve treatment initiation, implementation, and persistence when delivered at the health care professional level or the system level, but demonstration of the cost-effectiveness of these interventions is necessary to ensure their widespread use...
September 2016: Journal of Allergy and Clinical Immunology in Practice
P Ning, Y F Guo, T Y Sun, H S Zhang, D Chai, X M Li
OBJECTIVE: To study the distinct clinical phenotype of chronic airway diseases by hierarchical cluster analysis and two-step cluster analysis. METHODS: A population sample of adult patients in Donghuamen community, Dongcheng district and Qinghe community, Haidian district, Beijing from April 2012 to January 2015, who had wheeze within the last 12 months, underwent detailed investigation, including a clinical questionnaire, pulmonary function tests, total serum IgE levels, blood eosinophil level and a peak flow diary...
September 1, 2016: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
Kwang Ha Yoo, Hae Ryun Ahn, Jae Kyoung Park, Jong Woong Kim, Gui Hyun Nam, Soon Kwan Hong, Mee Ja Kim, Aloke Gopal Ghoshal, Abdul Razak Bin Abdul Muttalif, Horng Chyuan Lin, Sanguansak Thanaviratananich, Shalini Bagga, Rab Faruqi, Shiva Sajjan, Santwona Baidya, De Yun Wang, Sang Heon Cho
PURPOSE: The Asia-Pacific Burden of Respiratory Diseases (APBORD) study is a cross-sectional, observational one which has used a standard protocol to examine the disease and economic burden of allergic rhinitis (AR), asthma, chronic obstructive pulmonary disorder (COPD), and rhinosinusitis across the Asia-Pacific region. Here, we report on symptoms, healthcare resource use, work impairment, and associated costs in Korea. METHODS: Consecutive participants aged ≥18 years with a primary diagnosis of asthma, AR, COPD, or rhinosinusitis were enrolled...
November 2016: Allergy, Asthma & Immunology Research
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