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COPD eosinophil

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https://www.readbyqxmd.com/read/28506852/pulmonary-inflammation-in-copd-patients-with-higher-blood-eosinophil-counts
#1
Umme Kolsum, Gautam Damera, Tuyet-Hang Pham, Thomas Southworth, Sarah Mason, Pradeep Karur, Paul Newbold, Dave Singh
The different nature of airway inflammation in COPD patients with higher blood eosinophil counts supports the concept of eosinophilic COPD being a subgroup of patients with distinct characteristics.
May 12, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28502414/acute-bronchodilator-responses-to-%C3%AE-2-agonist-and-anticholinergic-agent-in-copd-their-different-associations-with-exacerbation
#2
Satoshi Konno, Hironi Makita, Masaru Suzuki, Kaoruko Shimizu, Hirokazu Kimura, Hiroki Kimura, Masaharu Nishimura
BACKGROUND: Acute bronchodilator response (BDR) is a potential phenotypic characteristic of COPD. However, the clinical factors associated with BDR in patients with COPD remain unclear, particularly for BDR to anticholinergic agents. OBJECTIVES: We aimed to clarify the clinical factors associated with BDR to β2-agonist and/or anticholinergic agent, considering time-associated variations of BDR. We also evaluated the association between BDR and clinical course of COPD...
June 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28495077/consensus-on-the-asthma-copd-overlap-syndrome-acos-between-the-spanish-copd-guidelines-gesepoc-and-the-spanish-guidelines-on-the-management-of-asthma-gema
#3
Vicente Plaza, Francisco Álvarez, Myriam Calle, Ciro Casanova, Borja G Cosío, Antolín López-Viña, Luís Pérez de Llano, Santiago Quirce, Miguel Román-Rodríguez, Juan José Soler-Cataluña, Marc Miravitlles
Following a proposal by the Spanish Society of Pulmonology and Thoracic Surgery (SEPAR), sponsor of the Spanish COPD Guidelines (GesEPOC) and the Spanish Guidelines on the Management of Asthma (GEMA), authors of both papers have unified the criteria for the diagnosis of asthma-COPD overlap syndrome (ACOS). This consensus defines ACOS as the presence in a given patient of three elements: significant smoking exposure, chronic airflow limitation and asthma. Diagnosis is confirmed when a patient (35years of age or older), smoker or ex-smoker of more than 10 pack-years, presents airflow limitation (post-bronchodilator FEV1/FVC<0...
May 8, 2017: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/28490872/correlation-between-fractional-exhaled-nitric-oxide-and-sputum-eosinophilia-in-exacerbations-of-copd
#4
Jie Gao, Min Zhang, Liqin Zhou, Xing Yang, Haigui Wu, Jianfang Zhang, Feng Wu
INTRODUCTION: Measurements of eosinophils in induced sputum and fractional exhaled nitric oxide (FeNO) are noninvasive biomarkers for assessing airway inflammation phenotypes in chronic obstructive pulmonary disease (COPD). Nevertheless, the clinical application of the correlation between FeNO levels and sputum eosinophilia is controversial. The study aimed to investigate the correlation and predictive relationship between FeNO levels and sputum eosinophils in patients with COPD exacerbation...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28482840/blood-and-sputum-eosinophils-in-copd-relationship-with-bacterial-load
#5
Umme Kolsum, Gavin C Donaldson, Richa Singh, Bethan L Barker, Vandana Gupta, Leena George, Adam J Webb, Sarah Thurston, Anthony J Brookes, Timothy D McHugh, Jadwiga A Wedzicha, Christopher E Brightling, Dave Singh
BACKGROUND: Sputum and blood eosinophil counts predict corticosteroid effects in COPD patients. Bacterial infection causes increased airway neutrophilic inflammation. The relationship of eosinophil counts with airway bacterial load in COPD patients is uncertain. We tested the hypothesis that bacterial load and eosinophil counts are inversely related. METHODS: COPD patients were seen at stable state and exacerbation onset. Sputum was processed for quantitative polymerase chain reaction detection of the potentially pathogenic microorganisms (PPM) H...
May 8, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28461299/th-2-signature-in-chronic-airway-diseases-towards-the-extinction-of-asthma-copd-overlap-syndrome
#6
Borja G Cosío, Luis Pérez de Llano, Antolin Lopez Viña, Alfons Torrego, Jose Luis Lopez-Campos, Joan B Soriano, Eva Martinez Moragon, Jose Luis Izquierdo, Irina Bobolea, Javier Callejas, Vicente Plaza, Marc Miravitlles, Juan Jose Soler-Catalunya
We aimed to describe the differences and similarities between patients with chronic obstructive airway disease classified on the basis of classical diagnostic labels (asthma, chronic obstructive pulmonary disease (COPD), or asthma-COPD overlap (ACOS)) or according to the underlying inflammatory pattern (Th-2 signature, either Th-2-high or Th-2-low).We performed a cross-sectional study of patients aged ≥40 years and with a post-bronchodilator forced expiratory volume in 1 s to forced vital capacity ratio ≤0...
May 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28454572/invasive-pulmonary-mucormycosis-rare-presentation-with-pulmonary-eosinophilia
#7
Taizou Hirano, Mitsuhiro Yamada, Kei Sato, Koji Murakami, Tokiwa Tamai, Yoshiya Mitsuhashi, Tsutomu Tamada, Hisatoshi Sugiura, Naomi Sato, Ryoko Saito, Junya Tominaga, Akira Watanabe, Masakazu Ichinose
BACKGROUND: Fungi can cause a variety of infectious diseases, including invasive mycosis and non-invasive mycosis, as well as allergic diseases. The different forms of mycosis usually have been described as mutually exclusive, independent entities, with few descriptions of overlapping cases. Here, we describe the first reported case of a patient with the complication of pulmonary eosinophilia in the course of invasive mucormycosis. CASE PRESENTATION: A 74-year-old Japanese man with asthma-COPD overlap underwent emergency surgery for a ruptured abdominal aortic aneurysm...
April 28, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28442899/approaches-to-drug-therapy-for-copd-in-russia-a-proposed-therapeutic-algorithm
#8
Kirill A Zykov, Svetlana I Ovcharenko
Until recently, there have been few clinical algorithms for the management of patients with COPD. Current evidence-based clinical management guidelines can appear to be complex, and they lack clear step-by-step instructions. For these reasons, we chose to create a simple and practical clinical algorithm for the management of patients with COPD, which would be applicable to real-world clinical practice, and which was based on clinical symptoms and spirometric parameters that would take into account the pathophysiological heterogeneity of COPD...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28438346/post-bronchodilator-reversibility-of-fev1-and-eosinophilic-airway-inflammation-in-copd
#9
Kun-Ta Chou, Kang-Cheng Su, Yi-Han Hsiao, Shiang-Fen Huang, Hsin-Kuo Ko, Ching-Min Tseng, Vincent Yi-Fong Su, Diahn-Warng Perng
INTRODUCTION: The relationship between bronchodilator responsiveness and eosinophilic airway inflammation has not been well documented in COPD. It has been investigated in this retrospective study. This issue has grown in importance due to increasing interest in the asthma-COPD overlap syndrome. METHODS: 264 stable COPD patients with no past history of asthma were retrospectively analyzed. Correlation analyses between FEV1 reversibility and sputum eosinophil levels were conducted...
April 21, 2017: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/28392036/is-the-blood-eosinophil-count-a-useful-biomarker-in-copd-the-devil-is-in-the-details
#10
Bartolome Celli
No abstract text is available yet for this article.
April 6, 2017: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/28366481/biologic-therapy-in-chronic-obstructive-pulmonary-disease
#11
REVIEW
Julia W Tripple, Jennifer L McCracken, William J Calhoun
Chronic obstructive pulmonary disease (COPD) is common worldwide. The predominant cause in most COPD is environmental exposure to toxicants. The inflammatory processes in COPD are multifactorial, complex, and interacting, leading to many potential therapeutic targets. Although most typically associated with neutrophilic/macrophagic inflammation (type 1), it is now known that COPD can also be associated with eosinophilic inflammation (type 2), particularly in exacerbations. Accordingly, there is an active program of investigation of highly selective biologic therapeutic agents in the management of COPD...
May 2017: Immunology and Allergy Clinics of North America
https://www.readbyqxmd.com/read/28352169/evidence-of-eosinophil-extracellular-trap-cell-death-in-copd-does-it-represent-the-trigger-that-switches-on-the-disease
#12
Loli Uribe Echevarría, Carolina Leimgruber, Jorge García González, Alberto Nevado, Ruth Álvarez, Luciana N García, Amado A Quintar, Cristina A Maldonado
In spite of the numerous studies on chronic obstructive pulmonary disease (COPD), the cellular and molecular basis of the disease's development remain unclear. Neutrophils and eosinophils are known to be key players in COPD. Recently, neutrophil extracellular trap cell death (NETosis), a mechanism due to decondensation and extrusion of chromatin to form extracellular traps, has been demonstrated in COPD. However, there is limited knowledge about eosinophil extracellular trap cell death (EETosis) and its role in the pathogenesis of COPD...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28347199/the-use-of-cellular-and-molecular-biomarkers-to-manage-copd-exacerbations
#13
Terence Ho, Angira Dasgupta, Frederick E Hargreave, Parameswaran Nair
Chronic obstructive pulmonary disease (COPD) exacerbations are a common cause of respiratory morbidity and mortality, and have various etiologies. Multiple cellular and molecular biomarkers have been associated with exacerbations. Quantitative sputum cell counts are able to identify the presence and type of bronchitis, which is an important contributor to exacerbations. Their utility to monitor bronchitis and to help treat exacerbations has been evaluated, yet they are not used in routine clinical practice...
May 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28278391/blood-eosinophils-and-response-to-maintenance-copd-treatment-data-from-the-flame-trial
#14
Nicolas Roche, Kenneth R Chapman, Claus F Vogelmeier, Felix J F Herth, Chau Thach, Robert Fogel, Petter Olsson, Francesco Patalano, Donald Banerji, Jadwiga A Wedzicha
RATIONALE: Post-hoc analyses suggest that blood eosinophils have potential as a predictive biomarker of inhaled corticosteroid efficacy in the management of chronic obstructive pulmonary disease. OBJECTIVES: We prospectively investigated the value of blood eosinophils as a predictor of responsiveness to an inhaled corticosteroid/long-acting β2-agonist combination versus a long-acting β2-agonist/long-acting muscarinic antagonist combination for exacerbation prevention...
March 9, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28260876/heterogeneity-of-asthma-copd-overlap-syndrome
#15
Hyonsoo Joo, Deokjae Han, Jae Ha Lee, Chin Kook Rhee
Many patients suffering from asthma or COPD have overlapping features of both diseases. However, a phenotypical approach for evaluating asthma-COPD overlap syndrome (ACOS) has not been established. In this report, we examined the phenotypes in patients with ACOS. Patients diagnosed with ACOS between 2011 and 2015 were identified and classified into four phenotype groups. Group A was composed of patients who smoked <10 pack years and had blood eosinophil counts ≥300. Group B was composed of patients who smoked <10 pack years and had blood eosinophil counts <300...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28260873/chronic-rhinosinusitis-is-associated-with-higher-prevalence-and-severity-of-bronchiectasis-in-patients-with-copd
#16
Xia Yang, Yali Xu, Jianmin Jin, Ruimin Li, Xiaofang Liu, Yongchang Sun
BACKGROUND AND PURPOSE: Bronchiectasis revealed by high-resolution computed tomography (HRCT) is common in chronic obstructive pulmonary disease (COPD), but the causes and risk factors remain to be determined. Chronic rhinosinusitis (CRS) is closely associated with bronchiectasis or COPD, but whether it is associated with comorbid bronchiectasis in COPD (COPD-Bx) is unknown. PATIENTS AND METHODS: Patients with stable COPD were enrolled consecutively and evaluated for the presence of CRS by questionnaire and paranasal sinus computed tomography...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28243079/can-we-predict-the-prognosis-of-copd-with-a-routine-blood-test
#17
Wei Xiong, Mei Xu, Yunfeng Zhao, Xueling Wu, Bigyan Pudasaini, Jin-Ming Liu
BACKGROUND: The major characteristic of COPD is systemic inflammation. The parameters such as neutrophil-to-lymphocyte ratio (NLR) and eosinophil-to-basophil ratio (EBR) in routine blood test (RBT) are considered to be the underlying biomarkers of inflammation. We hypothesized that the prognosis of patients with COPD can be predicted with RBT. METHODS: Patients with COPD in stable stage were enrolled. The RBT, pulmonary function testing (PFT), BODE index, C-reactive protein (CRP), procalcitonin, and erythrocyte sedimentation rate (ESR) were performed at enrollment and every follow-up once in every 3 months during the 24-month follow-up period...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28243078/a-belgian-survey-on-the-diagnosis-of-asthma-copd-overlap-syndrome
#18
Didier Cataldo, Jean-Louis Corhay, Eric Derom, Renaud Louis, Eric Marchand, Alain Michils, Vincent Ninane, Rudi Peché, Charles Pilette, Walter Vincken, Wim Janssens
INTRODUCTION: Patients with chronic airway disease may present features of both asthma and COPD, commonly referred to as asthma-COPD overlap syndrome (ACOS). Recommendations on their diagnosis are diffuse and inconsistent. This survey aimed to identify consensus on criteria for diagnosing ACOS. METHODS: A Belgian expert panel developed a survey on ACOS diagnosis, which was completed by 87 pulmonologists. Answers chosen by ≥70% of survey respondents were considered as useful criteria for ACOS diagnosis...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28223791/impact-of-exacerbations-on-respiratory-system-impedance-measured-by-a-forced-oscillation-technique-in-copd-a-prospective-observational-study
#19
Takahiro Kamada, Masahiro Kaneko, Hiromi Tomioka
BACKGROUND: Forced oscillation technique (FOT) has been reported to be useful in the evaluation and management of obstructive lung disease, including COPD. To date, no data are available concerning long-term changes in respiratory system impedance measured by FOT. Additionally, although exacerbations have been reported to be associated with excessive lung function decline in COPD, the impact of exacerbations on the results of FOT has not been demonstrated. The aim of this study was to investigate the longitudinal changes in respiratory system impedance and the influence of exacerbations thereon...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28178340/sputum-biomarkers-in-ipf-evidence-for-raised-gene-expression-and-protein-level-of-igfbp-2-il-8-and-mmp-7
#20
J Guiot, M Henket, J L Corhay, C Moermans, R Louis
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a rare lung disease of unknown origin leading rapidly to death. This paper addresses the issue of whether sputum induction is a suitable tool to study respiratory tract inflammation and potential biomarkers in IPF compared to COPD, a fibrosing airway wall disease. METHODS: In a cross-sectional analysis, 15 IPF patients, 32 COPD and 30 healthy subjects underwent sputum induction. Total sputum cell counts and the amount of TGF- β, IGF-1, IGF-2, IGFBP-1, IGFBP-2, IGFBP-3, IL-8, IL-13, MMP-7, MMP-9, YKL-40, TNF-α and KL-6 in sputum supernatant were analysed...
2017: PloS One
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