scholarly journals A study on asthma and chronic obstructive pulmonary disease overlaps among patients with obstructive airway diseases

2021 ◽  
Vol 6 (2) ◽  
pp. 71-74
Author(s):  
Venkatesh B.C ◽  
Raju C.H
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Smoking History ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Airway Diseases ◽  
History Of ◽  
Sputum Eosinophils ◽  
Obstructive Airway Diseases ◽  
Asthma Group

There is a need to re-evaluate the concept of asthma and chronic obstructive pulmonary disease (COPD) as separate conditions, and to consider situations when they may coexist, or when one condition may evolve into the other. This is prospective, observational and descriptive study conducted at MNR Medical College and Hospital, Sangareddy, India from June 2020 to December 2020 among chronic airway diseases who were classified into three groups (COPD, Asthma, and Asthma and COPD overlap (ACO)). Patients with COPD and ACO were diagnosed according to GOLD guidelines 2020 and patients with asthma were diagnosed according to Global Initiative for Asthma (GINA) guidelines 2020. : Regarding the age difference between groups, it was found that patients who were diagnosed as having COPD and ACO were with mean age of 57.23±8.54 and 56.26±7.73 years, respectively. The men age of patients of Asthma was 57.51±8.43. In our study, 28 (30%) patients as having COPD, 39 (45.5%) patients were diagnosed as having ACO, 23 (24.4%) patients were diagnosed as having asthma. In our study comparison of groups regarding history of atopy. We found that 71.7% of ACO group, 78.2% of asthma group and 25% of COPD group had a positive history of atopy. Comparison of study groups regarding sputum eosinophils revealed that 30.7 % of ACO group, 73.9% of asthma group and 32.1% of COPD group had positive sputum eosinophils.  ACO represents a large percentage among patients with obstructive airway diseases. It shares some features of asthma such as atopy and positive sputum eosinophilia, and some features of COPD like old age of presentation and positive smoking history.

scholarly journals A study on overview of asthma-chronic obstructive pulmonary disease overlaps among patients with obstructive airway diseases

2021 ◽  
Vol 6 (2) ◽  
pp. 117-120
Author(s):  
P Ajoy Kumar ◽  
Are Suryakari Sreekanth
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Smoking History ◽  
Chronic Obstructive ◽  
Age Difference ◽  
Obstructive Pulmonary Disease ◽  
Asthmatic Patients ◽  
Airway Diseases ◽  
Obstructive Airway Diseases ◽  
Chronic Airway

Asthma and chronic obstructive pulmonary disease (COPD) are different disease entities. They are both clinical diagnoses, with diagnostic tools to discriminate between one another.There is a need to re-evaluate the concept of asthma and chronic obstructive pulmonary disease (COPD) as separate conditions, and to consider situations when they may coexist, or when one condition may evolve into the other.  A prospective study included 70 patients with chronic airway diseases who were classified into three groups (COPD, asthma and ACO). They were selected from Department of Pulmonary Medicine, Kurnool Medical College outpatient clinic during the period from January 2019 to December 2019, where patients with COPD and ACO were diagnosed according to GOLD guidelines and patients with asthma were diagnosed according to GINA guidelines. Patients enrolled in the study were subjected to full history taking, clinical examination, full laboratory examination, plain chest radiography, spirometry before bronchodilator and after bronchodilator administration (reversibility test) and sputum analysis for counting eosinophils cells.  This study was conducted on 70 patients with chronic airway diseases (COPD, asthma and asthma COPD overlap) were selected. It included 47(67.1%) males and 23(32.8%) females. In our study, 30 (42.8%) patients as having COPD, 19(27.1%) patients were diagnosed as having asthma and 21(30%) patients were diagnosed as having ACO. Regarding the age difference between groups, it was found that patients who were diagnosed as having ACO were older than asthmatic patients with mean age of 49.43±5.83 and 47.23±6.73years, respectively. The men age of patients with COPD was 57.32±6.74 which was older than both ACO and asthmatic patients.  ACO represents a large percentage among patients with obstructive airway diseases. It shares some features of asthma such as atopy and positive sputum eosinophilia, and some features of COPD like old age of presentation and positive smoking history.

scholarly journals Oxidative stress and macrophages: driving forces behind exacerbations of asthma and chronic obstructive pulmonary disease?

2019 ◽  
Vol 316 (2) ◽  
pp. L369-L384 ◽  
Author(s):  
Linsey E. S. de Groot ◽  
T. Anienke van der Veen ◽  
Fernando O. Martinez ◽  
Jörg Hamann ◽  
René Lutter ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Driving Forces ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Current State ◽  
Airway Diseases ◽  
Obstructive Airway Diseases

Oxidative stress is a common feature of obstructive airway diseases like asthma and chronic obstructive pulmonary disease (COPD). Lung macrophages are key innate immune cells that can generate oxidants and are known to display aberrant polarization patterns and defective phagocytic responses in these diseases. Whether these characteristics are linked in one way or another and whether they contribute to the onset and severity of exacerbations in asthma and COPD remain poorly understood. Insight into oxidative stress, macrophages, and their interactions may be important in fully understanding acute worsening of lung disease. This review therefore highlights the current state of the art regarding the role of oxidative stress and macrophages in exacerbations of asthma and COPD. It shows that oxidative stress can attenuate macrophage function, which may result in impaired responses toward exacerbating triggers and may contribute to exaggerated inflammation in the airways.

Clinical application of induced and spontaneous sputum in asthma and chronic obstructive pulmonary disease

2012 ◽  
Vol 153 (47) ◽  
pp. 1847-1854 ◽  
Author(s):  
Balázs Antus
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Chronic Obstructive ◽  
Sputum Induction ◽  
Obstructive Pulmonary Disease ◽  
Airway Diseases ◽  
Eosinophil Cell ◽  
Inflammatory Processes ◽  
Invasive Method ◽  
Obstructive Airway Diseases

In recent years induced sputum analysis has become a non-invasive method for the assessment of airway inflammation in obstructive airway diseases. Sputum induction is safe and well tolerated by the patients. The method has been standardized, and this has markedly improved the quality and reproducibility of sputum samples. Identification of sputum eosinophilia has the greatest clinical relevance as it predicts a favorable response to corticosteroids. Treatment strategy aiming normalisation of sputum eosinophil cell count may reduce the rate of exacerbations in asthma. Profiling inflammatory mediators in sputum supernatant provides new insights into the pathogenesis of asthma and chronic obstructive pulmonary disease. Cell type analysis in spontaneous sputum may also provide much information about inflammatory processes in the airways. Based on the results of clinical studies sputum analysis should be more often used in clinical settings in the future. Orv. Hetil., 2012, 153, 1847–1854.

scholarly journals Implementation of a Targeted Screening Program to Detect Airflow Obstruction Suggestive of Chronic Obstructive Pulmonary Disease within a Presurgical Screening Clinic

2015 ◽  
Vol 22 (4) ◽  
pp. 209-214 ◽  
Author(s):  
Chantal Robitaille ◽  
Esther Dajczman ◽  
Andrew M Hirsch ◽  
David Small ◽  
Pierre Ernst ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Screening Program ◽  
Tertiary Care ◽  
Airflow Obstruction ◽  
University Hospital ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Targeted Screening ◽  
History Of

BACKGROUND: Targeted spirometry screening for chronic obstructive pulmonary disease (COPD) has been studied in primary care and community settings. Limitations regarding availability and quality of testing remain. A targeted spirometry screening program was implemented within a presurgical screening (PSS) clinic to detect undiagnosed airways disease and identify patients with COPD/asthma in need of treatment optimization.OBJECTIVE: The present quality assurance study evaluated airflow obstruction detection rates and examined characteristics of patients identified through the targeted screening program.METHODS: The targeted spirometry screening program was implemented within the PSS clinic of a tertiary care university hospital. Current or ex-smokers with respiratory symptoms and patients with a history of COPD or asthma underwent prebronchodilator spirometry. History of airways disease and smoking status were obtained during the PSS assessment and confirmed through chart reviews.RESULTS: After exclusions, the study sample included 449 current or ex-smokers. Abnormal spirometry results were found in 184 (41%) patients: 73 (16%) had mild, 93 (21%) had moderate and 18 (4%) had severe or very severe airflow obstruction. One hundred eighteen (26%) new cases of airflow obstruction suggestive of COPD were detected. One-half of these new cases had moderate or severe airflow obstruction. Only 34% of patients with abnormal spirometry results had reported a previous diagnosis of COPD. More than one-half of patients with abnormal spirometry results were current smokers.CONCLUSIONS: Undiagnosed airflow obstruction was detected in a significant number of smokers and ex-smokers through a targeted screening program within a PSS clinic. These patients can be referred for early intervention and secondary preventive strategies.

scholarly journals Morphological and functional erythrocyte parameters in smokers with chronic obstructive pulmonary disease

2008 ◽  
pp. 48-52
Author(s):  
E. V. Privalova ◽  
T. V. Vavilova ◽  
N. A. Kuzubova
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Smoking History ◽  
Chronic Obstructive ◽  
Bronchial Obstruction ◽  
Obstructive Pulmonary Disease ◽  
Compensatory Reaction ◽  
Copd Patients

The aim of this study was to investigate morphological and functional erythrocyte parameters in smokers with chronic obstructive pulmonary disease (COPD). We measured erythrocyte parameters (RBC, HGB, HCT, MCV, MCH, MCHC, RDW-SD) using the automatic hematological analyzer Sysmex XT-2000i. Sixty-nine patients participated in the study. The patients were divided into 3 groups: 34 patients with COPD (mean age 63 yrs, median smoking history 36 packyrs); 15 smokers without bronchial obstruction (mean age 56 yrs, median smoking history 28 packyrs) and 20 nonsmokers of the sane age without bronchial obstruction. Smokers with COPD and smokers without bronchial obstruction had significantly higher erythrocyte parameters compared to those of nonsmokers. Smokers demonstrated higher HGB level that could be as a compensatory reaction to nicotine-related preclinical hypoxia. Marked increase in RBC number and anisocytosis (RDW-SD) reflected the erythron activation in smokers with COPD. These results suggest that measurement of erythrocyte parameters could be useful to assess symptomatic erythrocytosis in COPD patients.

scholarly journals Association of NLRP1 Coding Polymorphism with Lung Function and Serum IL-1β Concentration in Patients Diagnosed with Chronic Obstructive Pulmonary Disease (COPD)

Genes ◽  
2019 ◽  
Vol 10 (10) ◽  
pp. 783 ◽  
Author(s):  
Ozretić ◽  
da Silva Filho ◽  
Catalano ◽  
Sokolović ◽  
Vukić-Dugac ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Lung Function ◽  
Pulmonary Disease ◽  
Minor Allele ◽  
Fine Tuning ◽  
Airflow Limitation ◽  
Smoking History ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
The Impact

Chronic obstructive pulmonary disease (COPD) is a chronic disease characterized by a progressive decline in lung function due to airflow limitation, mainly related to IL-1β-induced inflammation. We have hypothesized that single nucleotide polymorphisms (SNPs) in NLRP genes, coding for key regulators of IL-1β, are associated with pathogenesis and clinical phenotypes of COPD. We recruited 704 COPD individuals and 1238 healthy controls for this study. Twenty non-synonymous SNPs in 10 different NLRP genes were genotyped. Genetic associations were estimated using logistic regression, adjusting for age, gender, and smoking history. The impact of genotypes on patients’ overall survival was analyzed with the Kaplan–Meier method with the log-rank test. Serum IL-1β concentration was determined by high sensitivity assay and expression analysis was done by RT-PCR. Decreased lung function, measured by a forced expiratory volume in 1 s (FEV1% predicted), was significantly associated with the minor allele genotypes (AT + TT) of NLRP1 rs12150220 (p = 0.0002). The same rs12150220 genotypes exhibited a higher level of serum IL-1β compared to the AA genotype (p = 0.027) in COPD patients. NLRP8 rs306481 minor allele genotypes (AG + AA) were more common in the Global Initiative for Chronic Obstructive Lung Disease (GOLD) definition of group A (p = 0.0083). Polymorphisms in NLRP1 (rs12150220; OR = 0.55, p = 0.03) and NLRP4 (rs12462372; OR = 0.36, p = 0.03) were only nominally associated with COPD risk. In conclusion, coding polymorphisms in NLRP1 rs12150220 show an association with COPD disease severity, indicating that the fine-tuning of the NLRP1 inflammasome could be important in maintaining lung tissue integrity and treating the chronic inflammation of airways.

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