COPD: Journal of Chronic Obstructive Pulmonary Disease最新文献

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Can Passive Cough Monitoring Predict COPD Exacerbations? 被动咳嗽监测能否预测COPD恶化?
IF 2.2 4区 医学
COPD: Journal of Chronic Obstructive Pulmonary Disease Pub Date : 2025-04-04 Epub Date: 2025-04-14 DOI: 10.1080/15412555.2025.2487909
A H Morice, A C den Brinker, M Crooks, S Thackray-Nocera, O Ouweltjes, R Rietman
{"title":"Can Passive Cough Monitoring Predict COPD Exacerbations?","authors":"A H Morice, A C den Brinker, M Crooks, S Thackray-Nocera, O Ouweltjes, R Rietman","doi":"10.1080/15412555.2025.2487909","DOIUrl":"https://doi.org/10.1080/15412555.2025.2487909","url":null,"abstract":"<p><strong>Purpose: </strong>Validation of an alert mechanism for COPD exacerbations based on coughing detected by a stationary unobtrusive nighttime monitor.</p><p><strong>Methods: </strong>This prospective double-blind longitudinal study of cough monitoring included 40 chronic obstructive pulmonary disease (COPD) patients. Participants underwent cough monitoring and completed a daily questionnaire for 12 weeks. If no exacerbation occurred within that period patients were asked to continue being monitored for a further 12 weeks. The automated system identified deteriorating trends in cough based on a personalized cough classifier and the alerts were compared with patient reported exacerbation onsets.</p><p><strong>Results: </strong>Thirty-eight patients [median age 72 (range 57-84)], median FEV-1% predicted 43% (range 20-106%) completed the study and had 41 exacerbations over a total of 3981 days. For 32 patients, the cough monitor data allowed classifier personalization, trend analysis, and alert generation. Based on the trend data, it is estimated that ∼30% of exacerbations are not associated with an increase in cough. The alert mechanism flagged 59% of the exacerbations. For the cases with alerts preceding the onset, the associated lead time was 4 days or more.</p><p><strong>Conclusion: </strong>Though based on a single variable only, the cough-based alert system captured more than half of the exacerbations in a passive, free-living scenario. No adherence issues were reported, and patients confirmed the unobtrusive and hassle-free nature of the approach.</p>","PeriodicalId":10704,"journal":{"name":"COPD: Journal of Chronic Obstructive Pulmonary Disease","volume":"22 1","pages":"2487909"},"PeriodicalIF":2.2,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143986286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Home-Based Inspiratory Muscle Training as Stand-Alone Therapy in COPD: A Randomized Sham-Controlled Trial Assessing Novel and Established Training Methods. 以家庭为基础的吸气肌训练作为COPD的独立治疗:一项评估新颖和成熟训练方法的随机假对照试验。
IF 2.2 4区 医学
COPD: Journal of Chronic Obstructive Pulmonary Disease Pub Date : 2025-03-31 Epub Date: 2025-04-08 DOI: 10.1080/15412555.2025.2487473
Martin Hartman, Filip Dosbaba, Ladislav Batalik, Daniela Vlazna, Marek Plutinsky, Kristian Brat, Roberta Catunda Costa, Artur Solon Lima, Lawrence P Cahalin, Magno F Formiga
{"title":"Home-Based Inspiratory Muscle Training as Stand-Alone Therapy in COPD: A Randomized Sham-Controlled Trial Assessing Novel and Established Training Methods.","authors":"Martin Hartman, Filip Dosbaba, Ladislav Batalik, Daniela Vlazna, Marek Plutinsky, Kristian Brat, Roberta Catunda Costa, Artur Solon Lima, Lawrence P Cahalin, Magno F Formiga","doi":"10.1080/15412555.2025.2487473","DOIUrl":"10.1080/15412555.2025.2487473","url":null,"abstract":"<p><p>This randomized controlled trial evaluated the effectiveness of two home-based, stand-alone inspiratory muscle training (IMT) modalities - inspiratory flow-resistive loading with biofeedback (IRFL) and mechanical threshold loading (MTL) - compared to a sham MTL group for improving inspiratory muscle performance and functional exercise capacity in COPD patients. Thirty-six COPD patients trained at home for 8 weeks under remote monitoring. Primary outcomes included inspiratory muscle performance assessed <i>via</i> the Test of Incremental Respiratory Endurance (TIRE), functional exercise capacity, lung function, and other COPD-related measures. Both the TIRE IRFL and MTL groups showed significant improvements in inspiratory muscle strength compared to the sham MTL group (<i>p</i> < 0.05). Additionally, the IRFL with biofeedback group demonstrated significant gains in inspiratory muscle work capacity and 6MWT distance compared to both the MTL and sham groups (<i>p</i> < 0.05). No adverse events were reported, and adherence to training protocols was high across all groups. This study supports home-based IMT as a feasible, effective stand-alone intervention for COPD patients, particularly for those who face barriers in accessing traditional pulmonary rehabilitation programs. TIRE IFRL showed superior benefits in enhancing inspiratory muscle function and overall functional exercise capacity compared to fixed-load IMT.</p>","PeriodicalId":10704,"journal":{"name":"COPD: Journal of Chronic Obstructive Pulmonary Disease","volume":"22 1","pages":"2487473"},"PeriodicalIF":2.2,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Alterations in Adiponectin Expression in Models of Cigarette Smoke Extract-Induced Mouse Pulmonary Emphysema and Alveolar Epithelial Cell Injury. 香烟烟雾提取物诱导小鼠肺气肿和肺泡上皮细胞损伤模型中脂联素表达的变化。
IF 2.2 4区 医学
COPD: Journal of Chronic Obstructive Pulmonary Disease Pub Date : 2025-03-06 Epub Date: 2025-03-13 DOI: 10.1080/15412555.2025.2477235
Siriporn Vongsaiyat Siriphorn, Supitsara Thorsuwan, Julalux Thongam, Sukpattaraporn Ruangklai, Poungpetch Hussarin, Thanaporn Rungruang, Sorachai Srisuma
{"title":"Alterations in Adiponectin Expression in Models of Cigarette Smoke Extract-Induced Mouse Pulmonary Emphysema and Alveolar Epithelial Cell Injury.","authors":"Siriporn Vongsaiyat Siriphorn, Supitsara Thorsuwan, Julalux Thongam, Sukpattaraporn Ruangklai, Poungpetch Hussarin, Thanaporn Rungruang, Sorachai Srisuma","doi":"10.1080/15412555.2025.2477235","DOIUrl":"10.1080/15412555.2025.2477235","url":null,"abstract":"<p><strong>Purpose: </strong>Cigarette smoke activates lung inflammation and destruction and the development of COPD. Among various factors influenced by lung inflammation, adiponectin produced by lung epithelial cells is thought to play a significant role in regulating inflammation and maintaining tissue integrity. This study aims to examine adiponectin expression in a mouse model of cigarette smoke extract (CSE)-induced emphysema and explore the effects of adiponectin on cell survival and cytokine gene expression in CSE-induced lung epithelial cell damage.</p><p><strong>Methods: </strong>CSE was prepared by passing cigarette smoke through a glass tube containing solvent. PBS or CSE was intraperitoneally administered to C57BL/6 mice. Inflammatory cells, cytokines, adiponectin expression in lung, bronchoalveolar lavage fluid (BALF) and adipose tissue were assessed. CSE and adiponectin were administered to A549 cells to determine cell viability and cytokine gene expression.</p><p><strong>Results: </strong>Intraperitoneal CSE injection significantly increased the mean alveolar linear intercept by 23.11%. CSE significantly increased total cells, macrophages, neutrophils, eosinophils, TNFα, IL-1β levels in BALF. CSE enhanced lung adiponectin protein expression. Treatment of A549 cells with CSE reduced cell survival and adiponectin gene expression. Furthermore, adiponectin treatment enhanced MCP-1 and IL-8 gene expression in A549 cells post-CSE exposure.</p><p><strong>Conclusion: </strong>Intraperitoneal CSE treatment induced lung inflammation, airspace enlargement, and increased adiponectin expression in mice. CSE-exposed A549 cells showed reduced cell viability, upregulated proinflammatory genes, downregulated adiponectin genes. Adiponectin treatment further intensified these genes expressions, aligning with <i>in vivo</i> findings. Elevated adiponectin expression in alveolar epithelial cells suggests its potential role in the development of COPD by enhancing lung inflammation.</p>","PeriodicalId":10704,"journal":{"name":"COPD: Journal of Chronic Obstructive Pulmonary Disease","volume":"22 1","pages":"2477235"},"PeriodicalIF":2.2,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143623970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
2025 GOLD Report: What is New and What is Noteworthy for the Practicing Clinician. 2025黄金报告:什么是新的,什么是值得注意的执业临床医生。
IF 2.2 4区 医学
COPD: Journal of Chronic Obstructive Pulmonary Disease Pub Date : 2025-01-08 Epub Date: 2025-02-06 DOI: 10.1080/15412555.2025.2451613
Konstantinos Kostikas, Georgios Hillas, Athena Gogali
{"title":"2025 GOLD Report: What is New and What is Noteworthy for the Practicing Clinician.","authors":"Konstantinos Kostikas, Georgios Hillas, Athena Gogali","doi":"10.1080/15412555.2025.2451613","DOIUrl":"https://doi.org/10.1080/15412555.2025.2451613","url":null,"abstract":"","PeriodicalId":10704,"journal":{"name":"COPD: Journal of Chronic Obstructive Pulmonary Disease","volume":"22 1","pages":"2451613"},"PeriodicalIF":2.2,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143254803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comorbidity Patterns in Chronic Obstructive Pulmonary Disease and Their Associations with Service Utilization. 慢性阻塞性肺病的并发症模式及其与服务利用的关系。
IF 2.2 4区 医学
COPD: Journal of Chronic Obstructive Pulmonary Disease Pub Date : 2024-12-01 Epub Date: 2024-10-28 DOI: 10.1080/15412555.2024.2414793
Yanran Duan, Hang Fu, Changying Chen, Yaojun Zhao, Shuai Jiang, Chengzeng Wang
{"title":"Comorbidity Patterns in Chronic Obstructive Pulmonary Disease and Their Associations with Service Utilization.","authors":"Yanran Duan, Hang Fu, Changying Chen, Yaojun Zhao, Shuai Jiang, Chengzeng Wang","doi":"10.1080/15412555.2024.2414793","DOIUrl":"10.1080/15412555.2024.2414793","url":null,"abstract":"<p><strong>Background: </strong>The prevalence of combinations of comorbidities and their associations with inpatient service utilization and readmission among patients with chronic obstructive pulmonary disease (COPD) have not been extensively examined. To address this gap in knowledge, an observational prospective study was conducted using retrospective data.</p><p><strong>Aims: </strong>To identify patterns of comorbidities linked to length of hospital stay, daily expenses, and one-year readmission.</p><p><strong>Methods: </strong>The 30 most common comorbidities were identified in patients with secondary diagnoses using the association rule mining (ARM) method. Regression models were used to examine the relationships between combinations of comorbidities and service utilization, with adjustments for covariates.</p><p><strong>Results: </strong>The five most prevalent comorbidities were pulmonary heart disease (40.99%), ischemic heart disease (38.97%), heart failure (36.77%), hypertension (34.11%), and respiratory disorders (19.12%). Most combinations of comorbidities identified by ARM showed significant associations with an extended length of stay (>13 days), increased daily expenses (>930 CNY), and reduced readmission rates. Among these combinations, glycoprotein metabolism disorder had the strongest association with prolonged length of stay (adjusted odds ratio [aOR]): 1.89, 95% confidence interval [CI]: 1.82-1.95). Conversely, the combination of other brain diseases and respiratory failure was linked to higher daily expenses (aOR: 11.34, 95% CI: 10.58-12.15), and the presence of pulmonary heart disease was associated with elevated one-year readmission rates (aOR: 1.41, 95% CI: 1.37-1.46).</p><p><strong>Conclusion: </strong>Common combinations of comorbidities among inpatients with COPD were identified from an extensive collection of discharge medical records. Furthermore, the associations between comorbidities, inpatient service usage, and readmission rates were determined.</p>","PeriodicalId":10704,"journal":{"name":"COPD: Journal of Chronic Obstructive Pulmonary Disease","volume":"21 1","pages":"2414793"},"PeriodicalIF":2.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142496509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
FBXL19 Targeted STK11 Degradation Enhances Cigarette Smoke-Induced Airway Epithelial Cell Cytotoxicity. FBXL19 靶向 STK11 降解增强香烟烟雾诱导的气道上皮细胞细胞毒性
IF 2.2 4区 医学
COPD: Journal of Chronic Obstructive Pulmonary Disease Pub Date : 2024-12-01 Epub Date: 2024-05-07 DOI: 10.1080/15412555.2024.2342797
Xiuying Li, Sowmya P Lakshmi, Kiyoshi Uemasu, Zachary Lane, Rajan T Reddy, Divay Chandra, Chunbin Zou, Yu Jiang, Toru Nyunoya
{"title":"FBXL19 Targeted STK11 Degradation Enhances Cigarette Smoke-Induced Airway Epithelial Cell Cytotoxicity.","authors":"Xiuying Li, Sowmya P Lakshmi, Kiyoshi Uemasu, Zachary Lane, Rajan T Reddy, Divay Chandra, Chunbin Zou, Yu Jiang, Toru Nyunoya","doi":"10.1080/15412555.2024.2342797","DOIUrl":"10.1080/15412555.2024.2342797","url":null,"abstract":"<p><p><b>Objective:</b> To investigate the effects of cigarette smoke (CS) on Serine/Threonine Kinase 11 (STK11) and to determine STK11's role in CS-induced airway epithelial cell cytotoxicity.<b>Methods:</b> STK11 expression levels in the lung tissues of smokers with or without COPD and mice exposed to CS or room air (RA) were determined by immunoblotting and RT-PCR. BEAS-2Bs-human bronchial airway epithelial cells were exposed to CS extract (CSE), and the changes in STK11 expression levels were determined by immunoblotting and RT-PCR. BEAS-2B cells were transfected with STK11-specific siRNA or STK11 expression plasmid, and the effects of CSE on airway epithelial cell cytotoxicity were measured. To determine the specific STK11 degradation-proteolytic pathway, BEAS-2Bs were treated with cycloheximide alone or combined with MG132 or leupeptin. Finally, to identify the F-box protein mediating the STK11 degradation, a screening assay was performed using transfection with a panel of FBXL E3 ligase subunits.<b>Results:</b> STK11 protein levels were significantly decreased in the lung tissues of smokers with COPD relative to smokers without COPD. STK11 protein levels were also significantly decreased in mouse lung tissues exposed to CS compared to RA. Exposure to CSE shortened the STK11 mRNA and protein half-life to 4 h in BEAS-2B cells. STK11 protein overexpression attenuated the CSE-induced cytotoxicity; in contrast, its knockdown augmented CSE-induced cytotoxicity. FBXL19 mediates CSE-induced STK11 protein degradation <i>via</i> the ubiquitin-proteasome pathway in cultured BEAS-2B cells. FBXL19 overexpression led to accelerated STK11 ubiquitination and degradation in a dose-dependent manner.<b>Conclusions:</b> Our results suggest that CSE enhances the degradation of STK11 protein in airway epithelial cells <i>via</i> the FBXL19-mediated ubiquitin-proteasomal pathway, leading to augmented cell death.HIGHLIGHTSLung tissues of COPD-smokers exhibited a decreased STK11 RNA and protein expression.STK11 overexpression attenuates CS-induced airway epithelial cell cytotoxicity.STK11 depletion augments CS-induced airway epithelial cell cytotoxicity.CS diminishes STK11 via FBXL19-mediated ubiquitin-proteasome degradation.</p>","PeriodicalId":10704,"journal":{"name":"COPD: Journal of Chronic Obstructive Pulmonary Disease","volume":"21 1","pages":"2342797"},"PeriodicalIF":2.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11186665/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140847688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Relationship Between Chronic Obstructive Pulmonary Disease and Osteoporosis: A Scoping Review. 慢性阻塞性肺病与骨质疏松症的关系:范围审查。
IF 2.2 4区 医学
COPD: Journal of Chronic Obstructive Pulmonary Disease Pub Date : 2024-12-01 Epub Date: 2024-07-31 DOI: 10.1080/15412555.2024.2356510
Ana Penedones, Diogo Mendes, Carlos Alves, Augusto Filipe, Tânia Oliveira, Francisco Batel-Marques
{"title":"Relationship Between Chronic Obstructive Pulmonary Disease and Osteoporosis: A Scoping Review.","authors":"Ana Penedones, Diogo Mendes, Carlos Alves, Augusto Filipe, Tânia Oliveira, Francisco Batel-Marques","doi":"10.1080/15412555.2024.2356510","DOIUrl":"10.1080/15412555.2024.2356510","url":null,"abstract":"<p><strong>Introduction: </strong>Potential associations between Chronic Obstructive Pulmonary Disease (COPD) and osteoporosis have been studied, but areas of uncertainty remain.</p><p><strong>Objective: </strong>This scoping review aimed to identify the published evidence on the epidemiological relationships between COPD and osteoporosis.</p><p><strong>Methods: </strong>Experimental and observational evidence evaluating relationships between COPD and osteoporosis on epidemiology, clinical manifestations, risk factors (RFs), therapeutic management and quality of life (QoL) was searched on PubMed and Embase (until May 2023). The studies were categorized according to their objectives and characteristics. Data were analyzed using descriptive statistics.</p><p><strong>Results: </strong>Ninety-nine studies were selected, namely 33 (33%) reporting epidemiologic measures, 11 (11%) clinical manifestations, 74 (75%) RFs (45 ones, of which body mass index [BMI; <i>n</i> = 22 studies], corticosteroids' use [<i>n</i> = 20], and COPD severity [<i>n</i> = 15] were the most studied), 7 (7%) therapeutic management, and 3 (3%) QoL. Twenty-seven (27.6%) studies evaluated ≥2 domains. Most studies followed a cross-sectional design (<i>n</i> = 37; 37.4%). Eighty-nine studies (90%) assessed patients with COPD at baseline and studied its relationship with osteoporosis.</p><p><strong>Conclusion: </strong>There are well-established features linking COPD and osteoporosis, including shared RFs, such as smoking, elderly, physical inactivity, or low BMI. Others deserve clarification, including the impact of COPD severity, or the use of inhaled corticosteroids on the incidence of osteoporosis and fractures, as well as the value of performing routine imaging tests, or prescribing anti-resorptive medications in COPD to prevent osteoporotic-related outcomes. QoL studies are also lacking. Investigating such issues is needed to propose clinical guidelines for managing osteoporosis in patients with COPD.</p>","PeriodicalId":10704,"journal":{"name":"COPD: Journal of Chronic Obstructive Pulmonary Disease","volume":"21 1","pages":"2356510"},"PeriodicalIF":2.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141854968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Beyond Spirometry: Linking Wasted Ventilation to Exertional Dyspnea in the Initial Stages of COPD. 肺活量测定之外:将慢性阻塞性肺疾病初期的通气浪费与运动性呼吸困难联系起来。
IF 2.2 4区 医学
COPD: Journal of Chronic Obstructive Pulmonary Disease Pub Date : 2024-12-01 Epub Date: 2024-02-13 DOI: 10.1080/15412555.2023.2301549
J Alberto Neder, Giles Santyr, Brandon Zanette, Miranda Kirby, Marina Pourafkari, Matthew D James, Sandra G Vincent, Carrie Ferguson, Chu-Yi Wang, Nicolle J Domnik, Devin B Phillips, Janos Porszasz, William W Stringer, Denis E O'Donnell
{"title":"Beyond Spirometry: Linking Wasted Ventilation to Exertional Dyspnea in the Initial Stages of COPD.","authors":"J Alberto Neder, Giles Santyr, Brandon Zanette, Miranda Kirby, Marina Pourafkari, Matthew D James, Sandra G Vincent, Carrie Ferguson, Chu-Yi Wang, Nicolle J Domnik, Devin B Phillips, Janos Porszasz, William W Stringer, Denis E O'Donnell","doi":"10.1080/15412555.2023.2301549","DOIUrl":"10.1080/15412555.2023.2301549","url":null,"abstract":"<p><p>Exertional dyspnea, a key complaint of patients with chronic obstructive pulmonary disease (COPD), ultimately reflects an increased inspiratory neural drive to breathe. In non-hypoxemic patients with largely preserved lung mechanics - as those in the initial stages of the disease - the heightened inspiratory neural drive is strongly associated with an exaggerated ventilatory response to metabolic demand. Several lines of evidence indicate that the so-called excess ventilation (high ventilation-CO<sub>2</sub> output relationship) primarily reflects poor gas exchange efficiency, namely increased physiological dead space. Pulmonary function tests estimating the extension of the wasted ventilation and selected cardiopulmonary exercise testing variables can, therefore, shed unique light on the genesis of patients' out-of-proportion dyspnea. After a succinct overview of the basis of gas exchange efficiency in health and inefficiency in COPD, we discuss how wasted ventilation translates into exertional dyspnea in individual patients. We then outline what is currently known about the structural basis of wasted ventilation in \"minor/trivial\" COPD vis-à-vis the contribution of emphysema versus a potential impairment in lung perfusion across non-emphysematous lung. After summarizing some unanswered questions on the field, we propose that functional imaging be amalgamated with pulmonary function tests beyond spirometry to improve our understanding of this deeply neglected cause of exertional dyspnea. Advances in the field will depend on our ability to develop robust platforms for deeply phenotyping (structurally and functionally), the dyspneic patients showing unordinary high wasted ventilation despite relatively preserved FEV<sub>1</sub>.</p>","PeriodicalId":10704,"journal":{"name":"COPD: Journal of Chronic Obstructive Pulmonary Disease","volume":"21 1","pages":"2301549"},"PeriodicalIF":2.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139721974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recognizing the Shades of Grey in the Diagnosis of COPD. 认识慢性阻塞性肺病诊断中的灰色阴影。
IF 2.2 4区 医学
COPD: Journal of Chronic Obstructive Pulmonary Disease Pub Date : 2024-12-01 Epub Date: 2024-10-01 DOI: 10.1080/15412555.2024.2402706
J Alberto Neder
{"title":"Recognizing the Shades of Grey in the Diagnosis of COPD.","authors":"J Alberto Neder","doi":"10.1080/15412555.2024.2402706","DOIUrl":"https://doi.org/10.1080/15412555.2024.2402706","url":null,"abstract":"","PeriodicalId":10704,"journal":{"name":"COPD: Journal of Chronic Obstructive Pulmonary Disease","volume":"21 1","pages":"2402706"},"PeriodicalIF":2.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142364683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dendritic Cells Promote the Differentiation of ILCs into NCR-ILC3s in the Lungs of Mice Exposed to Cigarette Smoke. 树突状细胞促进暴露于香烟烟雾的小鼠肺中的 ILCs 分化为 NCR-ILC3s
IF 2.2 4区 医学
COPD: Journal of Chronic Obstructive Pulmonary Disease Pub Date : 2024-12-01 Epub Date: 2024-08-14 DOI: 10.1080/15412555.2024.2389909
Caixia Liang, Ying Shen, Yifang Xu, Yi Liang, Shilin Qiu, Haijuan Tang, Xiaoning Zhong
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