scholarly journals Basal Gene Expression by Lung CD4+ T Cells in Chronic Obstructive Pulmonary Disease Identifies Independent Molecular Correlates of Airflow Obstruction and Emphysema Extent

PLoS ONE ◽  
2014 ◽  
Vol 9 (5) ◽  
pp. e96421 ◽  
Author(s):  
Christine M. Freeman ◽  
Alexandra L. McCubbrey ◽  
Sean Crudgington ◽  
Joshua Nelson ◽  
Fernando J. Martinez ◽  
...  
Keyword(s):  
Gene Expression ◽  
Chronic Obstructive Pulmonary Disease ◽  
T Cells ◽  
Pulmonary Disease ◽  
Cd4 T Cells ◽  
Airflow Obstruction ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease

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 Fatigue and multidimensional disease severity in chronic obstructive pulmonary disease

2010 ◽  
Vol 5 ◽  
Author(s):  
Deniz Inal-Ince ◽  
Sema Savci ◽  
Melda Saglam ◽  
Ebru Calik ◽  
Hulya Arikan ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Disease Severity ◽  
Airflow Obstruction ◽  
Muscle Endurance ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Bode Index ◽  
Peripheral Muscle ◽  
St George's Respiratory Questionnaire

Background and aims: Fatigue is associated with longitudinal ratings of health in patients with chronic obstructive pulmonary disease (COPD). Although the degree of airflow obstruction is often used to grade disease severity in patients with COPD, multidimensional grading systems have recently been developed. The aim of this study was to investigate the relationship between perceived and actual fatigue level and multidimensional disease severity in patients with COPD. Materials and methods: Twenty-two patients with COPD (aged 52-74 years) took part in the study. Multidimensional disease severity was measured using the SAFE and BODE indices. Perceived fatigue was assessed using the Fatigue Severity Scale (FSS) and the Fatigue Impact Scale (FIS). Peripheral muscle endurance was evaluated using the number of sit-ups, squats, and modified push-ups that each patient could do. Results: Thirteen patients (59%) had severe fatigue, and their St George’s Respiratory Questionnaire scores were significantly higher (p < 0.05). The SAFE index score was significantly correlated with the number of sit-ups, number of squats, FSS score and FIS score (p < 0.05). The BODE index was signif- icantly associated with the numbers of sit-ups, squats and modified push-ups, and with the FSS and FIS scores (p < 0.05). Conclusions: Peripheral muscle endurance and fatigue perception in patients with COPD was related to multidimensional disease severity measured with both the SAFE and BODE indices. Improvements in perceived and actual fatigue levels may positively affect multidimensional disease severity and health status in COPD patients. Further research is needed to investigate the effects of fatigue perception and exercise training on patients with different stages of multidimensional COPD severity.

scholarly journals A literature review on depression and its risk factors among people suffering from chronic obstructive pulmonary disease in Asian sub-continent

2020 ◽  
Vol 7 (11) ◽  
pp. 4653
Author(s):  
Amrit Sharma
Keyword(s):  
Risk Factors ◽  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Low Income ◽  
Airflow Obstruction ◽  
Airflow Limitation ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Chronic Inflammatory Response ◽  
Basic Activity

Chronic obstructive pulmonary disease (COPD) is defined as persistent airflow limitation that is usually progressive and associated with an enhanced chronic inflammatory response in the airways and the lung to noxious particles or gases. It has been suggested that emotional disturbances such as depression and anxiety are common among patients with COPD. This review aims to highlight the presence of depression and associated risk factors among patients suffering from COPD in Asia. Fifty-eight observational studies were retrieved through data sources like PubMed, Medical subject heading (MeSH) search and Google scholar. After thorough screening total thirteen studies were identified and included in this review. Based on the results of these studies, the south and west Asian countries had higher proportion of depression. However, risk factor results were mixed which includes severity of obstruction/global initiative for obstructive lung disease (GOLD) criteria, Stage 2 COPD, teetotallers, smoking, alcohol consumption, body mass index, airflow obstruction, dyspnoea, and exercise (BODE) index, urban residence, female gender, education level, dyspnoea, low income, poor Quality of life (QOL) scores, age, poor self-reported health, basic activity of daily living (BADL) disability. Further superior research studies with larger sample size are required on Asian population. All in all, it is recommended that early diagnosis and treatment of depression should be included as a part of management in COPD as it can help to minimize the risk of morbidity and mortality in the patients.

scholarly journals Bioinformatic Analysis of ABCA1 Gene Expression in Smoking and Chronic Obstructive Pulmonary Disease

Membranes ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 674
Author(s):  
Stanislav Kotlyarov ◽  
Anna Kotlyarova
Keyword(s):  
Gene Expression ◽  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Alveolar Macrophages ◽  
Plasma Membranes ◽  
Bioinformatic Analysis ◽  
Transport Processes ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Abca1 Gene

Smoking is a key modifiable risk factor for developing the chronic obstructive pulmonary disease (COPD). When smoking, many processes, including the reverse transport of cholesterol mediated by the ATP binding cassette transporter A1 (ABCA1) protein are disrupted in the lungs. Changes in the cholesterol content in the lipid rafts of plasma membranes can modulate the function of transmembrane proteins localized in them. It is believed that this mechanism participates in increasing the inflammation in COPD. Methods: Bioinformatic analysis of datasets from Gene Expression Omnibus (GEO) was carried out. Gene expression data from datasets of alveolar macrophages and the epithelium of the respiratory tract in smokers and COPD patients compared with non-smokers were used for the analysis. To evaluate differentially expressed genes, bioinformatic analysis was performed in comparison groups using the limma package in R (v. 4.0.2), and the GEO2R and Phantasus tools (v. 1.11.0). Results: The conducted bioinformatic analysis showed changes in the expression of the ABCA1 gene associated with smoking. In the alveolar macrophages of smokers, the expression levels of ABCA1 were lower than in non-smokers. At the same time, in most of the airway epithelial datasets, gene expression did not show any difference between the groups of smokers and non-smokers. In addition, it was shown that the expression of ABCA1 in the epithelial cells of the trachea and large bronchi is higher than in small bronchi. Conclusions: The conducted bioinformatic analysis showed that smoking can influence the expression of the ABCA1 gene, thereby modulating lipid transport processes in macrophages, which are part of the mechanisms of inflammation development.

Chronic Obstructive Pulmonary Disease

2014 ◽  
pp. 334-345 ◽  
Author(s):  
John J. Reilly
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Health Care ◽  
Differential Diagnosis ◽  
Pulmonary Disease ◽  
Airflow Obstruction ◽  
Health Care Practitioner ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Definition Of ◽  
The U.S

Virtually every health care practitioner who provides care to adults will encounter individuals with chronic obstructive pulmonary disease (COPD). Current estimates of the prevalence of the condition vary based on the method of ascertainment: most surveys show that approximately 6% of adults report a doctor's diagnosis of COPD but that approximately 25% have airflow obstruction when assessed by spirometry. COPD is common, morbid, mortal, and expensive: estimates are that 〉20 million U.S. adults have COPD and that it is responsible for 〉120,000 deaths annually with a cost to the U.S. economy of more than $38 billion. This chapter describes the definition of COPD, presenting clinical symptomatology and evaluation, natural history, differential diagnosis, current concepts of pathogenesis, therapeutic options, and the evaluation of a patient with known or suspected COPD considering surgery.

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