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https://www.readbyqxmd.com/read/27832230/inflammatory-and-immunological-profiles-in-patients-with-copd-relationship-with-fev-1-reversibility
#1
Cleriston Farias Queiroz, Antonio Carlos Moreira Lemos, Maria de Lourdes Santana Bastos, Margarida Célia Lima Costa Neves, Aquiles Assunção Camelier, Natália Barbosa Carvalho, Edgar Marcelino de Carvalho
Objective: To determine whether COPD severity correlates with sputum cell counts, atopy, and asthma. Methods: This was a cross-sectional study involving 37 patients with COPD and 22 healthy subjects with normal lung function (controls). Sputum cell counts were determined by microscopy after centrifugation of samples. Skin prick tests were performed, and serum cytokines were determined by ELISA. Results: Patients were stratified by bronchodilator response: a non-reversible airflow limitation (nonRAL) group comprised 24 patients showing no significant post-bronchodilator change in FEV1; and a partially reversible airflow limitation (partialRAL) group comprised 13 patients showing FEV1 reversibility (post-bronchodilator FEV1 increase ≥ 12%)...
July 2016: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/27832227/eosinophils-in-copd-why-should-i-care
#2
EDITORIAL
Frederico Leon Arrabal Fernandes
No abstract text is available yet for this article.
July 2016: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/27822474/the-time-course-of-pulmonary-function-tests-in-copd-patients-with-different-levels-of-blood-eosinophils
#3
Paola Rogliani, Ermanno Puxeddu, Chiara Ciaprini, Josuel Ora, Angelo Onorato, Gabriella Pezzuto, Luigino Calzetta, Mario Cazzola
Only very few studies have investigated the influence of eosinophils on the functional progression of COPD. We aimed at retrospectively analyzing the trend of pulmonary function tests over time in patients with COPD according to two baseline blood eosinophil cell count strata (<2% [EOS-] and ≥2% [EOS+]). We used the last 9-year data present in the database of our outpatient clinic and selected only those who had two blood counts that would guarantee the stability of the value of eosinophils and serial spirometry for 4 consecutive years...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27796796/the-reemergence-of-the-asthma-copd-overlap-syndrome-characterizing-a-syndrome-in-the-precision-medicine-era
#4
REVIEW
Stephanie A Christenson
PURPOSE OF REVIEW: The asthma-COPD overlap syndrome (ACOS) has reemerged in the medical literature. This review addresses our current understanding of ACOS as a clinical and biological entity and how new and existing therapies may be targeted to this group. RECENT FINDINGS: Many studies suggest that ACOS is common and associated with more morbidity than asthma and COPD in general. However, there is no consensus on an ACOS definition, likely due to the heterogeneity of the disease...
November 2016: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/27773786/monoclonal-antibody-therapy-for-the-treatment-of-asthma-and-chronic-obstructive-pulmonary-disease-with-eosinophilic-inflammation
#5
John Nixon, Paul Newbold, Tomas Mustelin, Gary P Anderson, Roland Kolbeck
Eosinophils have been linked with asthma for more than a century, but their role has been unclear. This review discusses the roles of eosinophils in asthma and chronic obstructive pulmonary disease (COPD) and describes therapeutic antibodies that affect eosinophilia. The aims of pharmacologic treatments for pulmonary conditions are to reduce symptoms, slow decline or improve lung function, and reduce the frequency and severity of exacerbations. Inhaled corticosteroids (ICS) are important in managing symptoms and exacerbations in asthma and COPD...
October 20, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27757029/comparison-of-the-clinical-characteristics-and-treatment-outcomes-of-patients-requiring-hospital-admission-to-treat-eosinophilic-and-neutrophilic-exacerbations-of-copd
#6
Hye Seon Kang, Chin Kook Rhee, Sung Kyoung Kim, Jin Woo Kim, Sang Haak Lee, Hyung Kyu Yoon, Joong Hyun Ahn, Yong Hyun Kim
PURPOSE: We compared the clinical characteristics and treatment outcomes of patients with eosinophilic and neutrophilic COPD exacerbations requiring hospital admission. PATIENTS AND METHODS: This was a retrospective multicenter study performed between January 2010 and December 2014. In all, 1,688 COPD patients admitted via the outpatient clinics or emergency departments of six university hospitals were enrolled. The patients were grouped by complete blood counts: eosinophilic group, >2% peripheral blood eosinophils, and neutrophilic group, >65% peripheral blood neutrophils or >11,000 leukocytes/mL...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27746201/eosinophils-in-chronic-obstructive-pulmonary-disease-exacerbations-are-associated-with-increased-readmissions
#7
Simon Couillard, Pierre Larivée, Josiane Courteau, Alain Vanasse
RATIONALE: A subset of patients with chronic obstructive pulmonary disease (COPD) demonstrates eosinophilic inflammation either in their sputum or blood. Previous studies regarding the association between increased blood eosinophils and poor readmission outcomes are conflicting. OBJECTIVE: Investigate outcomes following severe COPD exacerbations in patients with higher blood eosinophils. METHODS: With an observational study design, hospitalizations for severe COPD exacerbation were retrospectively gathered...
October 13, 2016: Chest
https://www.readbyqxmd.com/read/27713629/importance-of-fractional-exhaled-nitric-oxide-in-the-differentiation-of-asthma-copd-overlap-syndrome-asthma-and-copd
#8
Feng-Jia Chen, Xin-Yan Huang, Yang-Li Liu, Geng-Peng Lin, Can-Mao Xie
BACKGROUND: Fractional exhaled nitric oxide (FeNO) is an easy, sensitive, reproducible, and noninvasive marker of eosinophilic airway inflammation. Accordingly, FeNO is extensively used to diagnose and manage asthma. Patients with COPD who share some of the features of asthma have a condition called asthma-COPD overlap syndrome (ACOS). The feasibility of using FeNO to differentiate ACOS patients from asthma and COPD patients remains unclear. METHODS: From February 2013 to May 2016, patients suspected with asthma and COPD through physician's opinion were subjected to FeNO measurement, pulmonary function test (PFT), and bronchial hyperresponsiveness or bronchodilator test...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27709630/myeloid-derived-suppressor-cell-like-fibrocytes-are-increased-and-associated-with-preserved-lung-function-in-chronic-obstructive-pulmonary-disease
#9
A K A Wright, C Newby, R A Hartley, V Mistry, S Gupta, R Berair, K M Roach, R Saunders, T Thornton, M Shelley, K Edwards, B Barker, C E Brightling
BACKGROUND: The role of fibrocytes in chronic obstructive pulmonary disease (COPD) is unknown. We sought to enumerate blood and tissue fibrocytes in COPD and determine the association of blood fibrocytes with clinical features of disease. METHODS: Utilizing flow cytometry to identify circulating, collagen type 1(+) cells, we found two populations: (i) CD45(+) CD34(+) (fibrocytes) and (ii) CD45(+) CD34(-) [myeloid-derived suppressor cell (MDSC)-like fibrocytes] cells in stable COPD (n = 41) and control (n = 29) subjects...
October 6, 2016: Allergy
https://www.readbyqxmd.com/read/27703344/effectiveness-using-higher-inhaled-corticosteroid-dosage-in-patients-with-copd-by-different-blood-eosinophilic-counts
#10
Shih-Lung Cheng, Ching-Hsiung Lin
BACKGROUND: Blood eosinophil counts have been documented as a good biomarker for patients with chronic obstructive pulmonary disease (COPD) using inhaled corticosteroid (ICS) therapy. However, the effectiveness and safety of prescribing high or medium dose of ICS for patients with different eosinophil counts are unknown. METHODS: A post hoc analysis of a previous prospective randomized study was performed for COPD patients using higher dose (HD: Fluticasone 1,000 μg/day) or medium dose (MD: Fluticasone 500 μg/day) of ICS combined with Salmeterol (100 μg/day)...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27660429/inflammatory-biomarkers-in-asthma-copd-overlap-syndrome
#11
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
https://www.readbyqxmd.com/read/27651909/effect-of-inhaled-corticosteroids-on-blood-eosinophil-count-in-steroid-na%C3%A3-ve-patients-with-copd
#12
James L Kreindler, Michael L Watkins, Sally Lettis, Ruth Tal-Singer, Nicholas Locantore
INTRODUCTION: Sputum and blood eosinophil counts have attracted attention as potential biomarkers in chronic obstructive pulmonary disease (COPD). One question regarding the use of blood eosinophils as a biomarker in COPD is whether their levels are affected by the use of inhaled corticosteroids (ICS), which are commonly prescribed for COPD. METHODS: We performed a retrospective analysis of peripheral blood leucocytes from a previously completed clinical trial that examined effects of ICS in steroid-naïve patients with COPD...
2016: BMJ Open Respiratory Research
https://www.readbyqxmd.com/read/27613392/pharmacological-strategies-to-reduce-exacerbation-risk-in-copd-a-narrative-review
#13
REVIEW
Marc Miravitlles, Anthony D'Urzo, Dave Singh, Vladimir Koblizek
Identifying patients at risk of exacerbations and managing them appropriately to reduce this risk represents an important clinical challenge. Numerous treatments have been assessed for the prevention of exacerbations and their efficacy may differ by patient phenotype. Given their centrality in the treatment of COPD, there is strong rationale for maximizing bronchodilation as an initial strategy to reduce exacerbation risk irrespective of patient phenotype. Therefore, in patients assessed as frequent exacerbators (>1 exacerbation/year) we propose initial bronchodilator treatment with a long-acting muscarinic antagonist (LAMA)/ long-acting β2-agonist (LABA)...
September 10, 2016: Respiratory Research
https://www.readbyqxmd.com/read/27592398/autoantibody-profiles-and-their-association-with-blood-eosinophils-in-asthma-and-copd
#14
Koji Tamai, Harukazu Yoshimatsu, Toshiharu Saito, Hirofumi Matsuoka, Nobuhiko Okada, Yasuko Koma, Akiko Otsuka, Nao Oda, Sayaka Inoue, Sachie Kume, Yujiro Suzuki
BACKGROUND: Autoimmune involvement in the pathogenesis of asthma and chronic obstructive pulmonary disease (COPD) has been proposed, and autoantibodies are a hallmark of autoimmunity. This study aimed to compare the autoantibody profiles of asthma and COPD, and the relationship between autoantibodies and features of these diseases. METHODS: We recruited 110 asthma patients and 92 COPD patients for a prospective study. Six autoantibody types were evaluated: antinuclear antibody, anti-cytoplasmic antibodies, rheumatoid factor, anti-cyclic citrullinated peptide antibody, myeloperoxidase-anti-neutrophil cytoplasmic autoantibody (MPO-ANCA) and proteinase 3-ANCA...
August 31, 2016: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/27586974/-study-of-the-clinical-phenotype-of-symptomatic-chronic-airways-disease-by-hierarchical-cluster-analysis-and-two-step-cluster-analyses
#15
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]
https://www.readbyqxmd.com/read/27460164/eosinophils-in-copd-the-janus-of-phenotyping-response-to-therapy
#16
Surya P Bhatt
No abstract text is available yet for this article.
September 2016: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/27460163/blood-eosinophil-count-and-pneumonia-risk-in-patients-with-chronic-obstructive-pulmonary-disease-a-patient-level-meta-analysis
#17
Ian D Pavord, Sally Lettis, Antonio Anzueto, Neil Barnes
BACKGROUND: Inhaled corticosteroids are important in the management of chronic obstructive pulmonary disease (COPD), but can slightly increase the risk of pneumonia in patients with moderate-to-severe COPD. Patients with circulating eosinophil counts of 2% or more of blood leucocytes respond better to inhaled corticosteroids than do those with counts of less than 2% and it was therefore postulated that blood eosinophil count might also have an effect on the risk of pneumonia in patients with COPD...
September 2016: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/27445469/peripheral-blood-eosinophils-a-surrogate-marker-for-airway-eosinophilia-in-stable-copd
#18
Netsanet A Negewo, Vanessa M McDonald, Katherine J Baines, Peter Ab Wark, Jodie L Simpson, Paul W Jones, Peter G Gibson
INTRODUCTION: Sputum eosinophilia occurs in approximately one-third of stable chronic obstructive pulmonary disease (COPD) patients and can predict exacerbation risk and response to corticosteroid treatments. Sputum induction, however, requires expertise, may not always be successful, and does not provide point-of-care results. Easily applicable diagnostic markers that can predict sputum eosinophilia in stable COPD patients have the potential to progress COPD management. This study investigated the correlation and predictive relationship between peripheral blood and sputum eosinophils...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27373322/inflammatory-mechanisms-in-patients-with-chronic-obstructive-pulmonary-disease
#19
REVIEW
Peter J Barnes
Chronic obstructive pulmonary disease (COPD) is associated with chronic inflammation affecting predominantly the lung parenchyma and peripheral airways that results in largely irreversible and progressive airflow limitation. This inflammation is characterized by increased numbers of alveolar macrophages, neutrophils, T lymphocytes (predominantly TC1, TH1, and TH17 cells), and innate lymphoid cells recruited from the circulation. These cells and structural cells, including epithelial and endothelial cells and fibroblasts, secrete a variety of proinflammatory mediators, including cytokines, chemokines, growth factors, and lipid mediators...
July 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27366830/clinical-phenotypes-of-obstructive-airway-diseases-in-an-outpatient-population
#20
Geert Rootmensen, Anton van Keimpema, Aeilko Zwinderman, Peter Sterk
BACKGROUND AND OBJECTIVES: Historically, obstructive airway diseases such as asthma and COPD are classified as different diseases. Although the definitions are clearly described, classification of patients into these traditional, clinical disease entity can be difficult. Recent evidence that there are complex, overlapping phenotypes of obstructive lung disease. Our aim was to capture clinical phenotypes of obstructive diseases through the use of cluster analysis in a representative patient population at a common Dutch pulmonary outpatient clinic...
December 2016: Journal of Asthma: Official Journal of the Association for the Care of Asthma
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