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Asthma and COPD

Charles-Antoine Guilloux, Claudie Lamoureux, Geneviève Héry-Arnaud
Lungs were considered as sterile for a long time. However, it is now evident that the lungs of healthy people are colonized by microorganisms. Among the bacteria present in the pulmonary microbiota, a significant proportion is anaerobic (strict or facultative). Even though interest in the pulmonary microbiota is increasing, few studies have focused on these unknowns that represent the lung resident anaerobic bacteria. This review describes the biodiversity of anaerobes in physiological conditions, and in different chronic respiratory diseases (cystic fibrosis, COPD, asthma)...
March 2018: Médecine Sciences: M/S
Cecilia Andersson, Sara J Bonvini, Peter Horvath, Eduardo Marquez, Imran Satia, Paul Kirkham, Florence Schleich, Marco Idzko, Reinoud Gosens, Jose Luis Lopez-Campos, Apostolos Bossios, Omar Usmani, Antonio Spanevello, Ian M Adcock, Alexander G Mathioudakis
For another year, high-quality research studies from around the world transformed the annual ERS International Congress into a vivid platform to discuss trending research topics, to produce new research questions and to further push the boundaries of respiratory medicine and science. This article reviews only some of the high-quality research studies on asthma, chronic obstructive pulmonary disease (COPD), bronchiectasis and chronic cough that were presented during the congress through the Airway Diseases Assembly (ERS Assembly 5) and places them into the context of current knowledge and research challenges...
January 2018: ERJ Open Research
Heather M Young, Fumin Guo, Rachel L Eddy, Geoffrey Maksym, Grace Parraga
Ventilation heterogeneity is a hallmark finding in obstructive lung disease and may be evaluated using a variety of methods including multiple-breath gas-washout and pulmonary imaging. Such methods provide an opportunity to better understand the relationships between structural and functional abnormalities in the lungs, and their relationships with important clinical outcomes. We measured ventilation heterogeneity and respiratory impedance in 100 subjects (50 asthmatics, 22 ex-smokers and 28 COPD), using oscillometry and hyperpolarized3 He magnetic resonance imaging (MRI) and determined their relationships with quality-of-life scores and disease control/exacerbations...
March 15, 2018: Journal of Applied Physiology
Arthur Bill Musk, Michael Hunter, Jennie Hui, Matthew W Knuiman, Mark Divitini, John P Beilby, Alan James
OBJECTIVE: To document the changing levels of tobacco smoking, respiratory symptoms, doctor-diagnosed asthma, and lung function in Busselton adults aged 46-65 years over the past 50 years. DESIGN, SETTING, PARTICIPANTS: Repeated cross-sectional population surveys (1966 to 2010-2015) of adults registered to vote in the Busselton shire, Western Australia, including a modified version of the British Medical Research Council questionnaire on respiratory symptoms. MAIN OUTCOME MEASURES: History of doctor-diagnosed asthma and chronic obstructive pulmonary disease (COPD), tobacco smoking history, respiratory medications used, spirometry parameters (forced expiratory volume in one second [FEV1], forced vital capacity [FVC])...
March 19, 2018: Medical Journal of Australia
Jisoo Park, Eun Kyung Kim, Mi Ae Kim, Tae Hyung Kim, Jung Hyun Chang, Yon Ju Ryu, Sei Won Lee, Yeon Mok Oh, Suk Joong Yong, Won Il Choi, Kwang Ha Yoo, Ji Hyun Lee
BACKGROUND: Obstructive airway disease patients with increased variability of airflow and incompletely reversible airflow obstruction are often categorized as having asthma-chronic obstructive pulmonary disease (COPD) overlap syndrome (ACOS). ACOS is heterogeneous with two sub-phenotypes: asthma-ACOS and COPD-ACOS. The objective of this study was to determine the difference in risk of exacerbation between the two sub-phenotypes of ACOS. METHODS: A total of 223 patients exhibiting incompletely reversible airflow obstruction with increased variability (spirometrically defined ACOS) were enrolled...
March 7, 2018: Tuberculosis and Respiratory Diseases
Antonio Anzueto, Marc Miravitlles
Chronic obstructive pulmonary disease (COPD) is often misdiagnosed and inappropriately treated in many patients. COPD is a distinct disease from adult-onset asthma; however, some patients with COPD may present with several forms of airway disease described as asthma-COPD overlap (ACO). Bronchodilators and inhaled corticosteroids (ICS) both have a place in standard maintenance treatment of COPD and asthma; however, recommendations for use differ widely. In patients with COPD, long-acting bronchodilators are effective initial monotherapy treatment, while ICS monotherapy is recommended as initial treatment in patients with asthma...
March 7, 2018: Chest
Bircan Erbas, Toril Mørkve Knudsen, Christer Janson, Roy M Nilsen, Simone Accordini, Bryndis Benediktdottir, Julia Dratva, Joachim Heinrich, Debbie Jarvis, Benedcite Leynaert, Melanie C Matheson, Dan Norbäck, Francisco G Real, Chantal Raherison-Semjen, Simona Villani, S C Dharmage, C Svanes
BACKGROUND: Despite extensive knowledge of smoking effects on respiratory disease, there is no study including all age windows of exposure among ever smokers. The objective of this study was to assess the effects from smoking exposure in utero, early childhood, adolescence and adulthood on respiratory health outcomes in adult male and female ever smokers. METHODS: Respiratory health outcomes were assessed in 10,610 participants of the European Community Respiratory Health Survey (ECRHS) I who reported a history of ever smoking by questionnaire...
March 6, 2018: Environmental Research
Juan M Reséndiz-Hernández, Ramcés Falfán-Valencia
Asthma and chronic obstructive pulmonary disease (COPD) are widely documented diseases with an inflammatory component. Asthma is a heterogeneous disorder of the airways that involves chronic inflammation, decline of the airway function and tissue remodeling. Chronic obstructive pulmonary disease is a preventable and treatable disease, which is characterized by persistent limited airflow, and is usually progressive with an increased inflammatory response in the airways. The inflammatory response is evoked by the stimulus of noxious particles and gases...
January 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Osman Savran, Charlotte Suppli Ulrik
Background: Early life events may predispose to the development of chronic lung disease in adulthood. Aim: To provide an update on current knowledge of early nongenetic origins of COPD. Materials and methods: Systematic literature review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Results: A total of 16 studies, comprising 69,365 individuals, met the predefined criteria and were included in the present review...
2018: International Journal of Chronic Obstructive Pulmonary Disease
Liza Cragg, Siân Williams, Thys van der Molen, Mike Thomas, Jaime Correia de Sousa, Niels H Chavannes
There is growing awareness amongst healthcare planners, providers and researchers of the need to make better use of routinely collected health data by translating it into actionable information that improves efficiency of healthcare and patient outcomes. There is also increased acceptance of the importance of real world research that recruits patients representative of primary care populations and evaluates interventions realistically delivered by primary care professionals. The UNLOCK Group is an international collaboration of primary care researchers and practitioners from 15 countries...
March 8, 2018: NPJ Primary Care Respiratory Medicine
Hamid Nisar Khan, Amir Suleman, Raza Ullah, Azmat Abdullah, Shahida Naz
BACKGROUND: There is an association of Gastroesophageal reflux disease (GERD) with chronic obstructive pulmonary disease (COPD). This study was designed to determine the frequency of GERD in COPD patients. METHODS: This descriptive, cross-sectional study was conducted in the Pulmonology Unit Ayub Teaching Hospital Abbottabad. Patients more than 40 years of age of both genders presenting with features of COPD such as cough and breathlessness for more than 6 months and confirmed by spirometry were included in the study...
January 2018: Journal of Ayub Medical College, Abbottabad: JAMC
Wiebke Fischer, Susanne Brandstetter, Magdalena Brandl, Tamara Finger, Merle M Böhmer, Michael Pfeifer, Christian Apfelbacher
BACKGROUND: Beliefs about medicines are regarded as influencing factors on medication adherence (Horne, 1997). Adherence levels in patients with chronic pulmonary diseases are low (Bourbeau and Bartlett, 2008; Sumino and Cabana, 2013). A better understanding of the predictive role of patients' beliefs about medicines for adherence might be a crucial step to improve medication adherence. OBJECTIVE: This prospective study investigated the association between beliefs about medicines and medication adherence in patients with asthma and COPD...
April 2018: Journal of Psychosomatic Research
Karin Lisspers, Christer Janson, Kjell Larsson, Gunnar Johansson, Gunilla Telg, Marcus Thuresson, Björn Ställberg
BACKGROUND: Asthma is often associated with other diseases. To identify and manage comorbidities is important, as these conditions may increase the disease burden. OBJECTIVE: To describe the prevalence of comorbidities, disease burden and mortality across age groups in a large Swedish primary care real-life asthma population. METHODS: Observational cohort study of asthma patients, all ages, identified from electronic medical records by ICD-10-CM code, data from 36 primary care centers...
March 2018: Respiratory Medicine
Hye Yun Park, Suh-Young Lee, Danbee Kang, Juhee Cho, Hyun Lee, Seong Yong Lim, Ho Il Yoon, Seung Won Ra, Ki Uk Kim, Yeon-Mok Oh, Don D Sin, Sang-Do Lee, Yong Bum Park
BACKGROUND: The recognition of asthma-chronic obstructive pulmonary disease (COPD) overlap (ACO) as a distinct phenotype of COPD or asthma has increased. Although ACO has worse clinical features than non-ACO COPD, limited information is available on long-term outcomes of lung function decline for ACO and non-ACO COPD. METHODS: COPD patients with at least 3 years of follow-up were selected from the Korean Obstructive Lung Disease cohort. ACO was defined based on 3 major criteria: 1) airflow limitation in individuals 40 years of age and older, 2) ≥10 pack-years of smoking history, and 3) a history of asthma or bronchodilator response of > 400 mL in forced expiratory volume in 1 s (FEV1 ) at baseline; and at least 1 minor criterion: 1) history of atopy or allergic rhinitis, 2) two separated bronchodilator responses of ≥12% and 200 mL in FEV1 , or 3) peripheral blood eosinophils ≥300 cells/μL...
March 2, 2018: Respiratory Research
Iñigo Ojanguren, Gregory Moullec, Jad Hobeika, Marc Miravitlles, Catherine Lemiere
INTRODUCTION: Although Asthma-COPD Overlap (ACO) has been described among populations of subjects with COPD or asthma, ACO has never been described among a population of subjects with occupational asthma (OA). OBJECTIVES: The aims of this study were to: 1. identify ACO in a population of subjects with OA; and 2. compare the clinical characteristics between ACO and OA. METHODS: This retrospective study included all subjects diagnosed with OA between 2000 and 2017 in an OA referral center...
2018: PloS One
Hao Zhang, Yue Niu, Yili Yao, Renjie Chen, Xianghong Zhou, Haidong Kan
The evidence concerning the acute effects of ambient air pollution on various respiratory diseases was limited in China, and the attributable medical expenditures were largely unknown. From 2013 to 2015, we collected data on the daily visits to the emergency- and outpatient-department for five main respiratory diseases and their medical expenditures in Shanghai, China. We used the overdispersed generalized additive model together with distributed lag models to fit the associations of criteria air pollutants with hospital visits, and used the linear models to fit the associations with medical expenditures...
February 28, 2018: International Journal of Environmental Research and Public Health
Mihai Mareș, Valentina Ruxandra Moroti-Constantinescu, David W Denning
OBJECTIVE: To estimate for the first time the burden of fungal infections in Romania. METHODS: Data derived from the World Health Organization (WHO), National Institute of Statistics, Romanian public health agencies and non-profit health organizations, and published annual reports on local epidemiology were used in the present study. When no data were available, specific at-risk populations were used to calculate frequencies of serious fungal diseases, using previously published epidemiological parameters...
March 1, 2018: Journal of Fungi (Basel, Switzerland)
Jannie M B Sand, Patricia Lamy, Pernille Juhl, Anne Sofie Siebuhr, Line V Iversen, Arkadiusz Nawrocki, Martin R Larsen, Robyn T Domsic, Nathalie Franchimont, Juan Chavez, Morten A Karsdal, Diana J Leeming
Type VII collagen is the main component of the anchoring fibrils connecting the basement membrane to the underlying interstitial matrix. Mutations in the type VII collagen gene cause dystrophic epidermolysis bullosa. Increased levels of type VII collagen in the skin have been reported in patients with systemic sclerosis (SSc), whereas reduced levels in the airways have been related to asthma. This indicates that type VII collagen plays an important part in upholding tissue integrity and that its remodeling may lead to pathological states...
March 1, 2018: Assay and Drug Development Technologies
Andrzej Emeryk, M Pirożyński, J Emeryk-Maksymiuk
The article briefly presents currently accessible dry powder inhalers (DPI). Basing on the data from the literature, we discussed the most common mistakes related to the utilisation of DPI as well as their clinical and economic consequences. We also extensively analysed all factors that may influence the efficacy and safety of inhaler therapy of asthma and COPD, mostly with the use of DPI. In addition, we indicated the potential to improve the efficacy of inhaler therapy from the doctor and COPD or asthma patient perspective...
2018: Advances in Respiratory Medicine
Anna Pękala-Wojciechowska, Michał Poznański, Kamil Szyszow, Adam Antczak
INTRODUCTION: Type 1 diabetes is an insulin deficiency-based chronic disease. It leads to the development of hyperglycaemia, which plays a key role in the initiation and progression of tissue damage in patients with diabetes. This mostly results from oxidative stress, whose increased severity is observed in this group of patients. Increased levels of 8-isoprostanes are seen in many inflammatory diseases, including asthma, COPD and cystic fibrosis. These diseases demonstrated the usefulness of the exhaled breath condensate (EBC) for extracting material for markers of oxidative stress, including 8-isoprostanes...
2018: Advances in Respiratory Medicine
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