Abstract:
BACKGROUND:COPD is emerging as the third largest cause of human mortality worldwide after heart disease and stroke. Tobacco smoking, the primary risk factor for the development of COPD, induces increased expression of platelet-activating factor receptor (PAFr) in the lung epithelium. Nontypeable Haemophilus influenzae (NTHi) and Streptococcus pneumoniae adhere to PAFr on the luminal surface of human respiratory tract epithelial cells. OBJECTIVE:To investigate PAFr as a potential drug target for the prevention of infections caused by the main bacterial drivers of acute exacerbations in COPD patients, NTHi and S. pneumoniae. METHODS:Human bronchial epithelial BEAS-2B cells were exposed to cigarette smoke extract (CSE). PAFr expression levels were determined using immunocytochemistry and quantitative polymerase chain reaction. The epithelial cells were challenged with either NTHi or S. pneumoniae labeled with fluorescein isothiocyanate, and bacterial adhesion was measured using immunofluorescence. The effect of a well-evaluated antagonist of PAFr, WEB-2086, on binding of the bacterial pathogens to BEAS-2B cells was then assessed. In silico studies of the tertiary structure of PAFr and the binding pocket for PAF and its antagonist WEB-2086 were undertaken. RESULTS:PAFr expression by bronchial epithelial cells was upregulated by CSE, and significantly associated with increased bacterial adhesion. WEB-2086 reduced the epithelial adhesion by both NTHi and S. pneumoniae to levels observed for non-CSE-exposed cells. Furthermore, it was nontoxic toward the bronchial epithelial cells. In silico analyses identified a binding pocket for PAF/WEB-2086 in the predicted PAFr structure. CONCLUSION:WEB-2086 represents an innovative class of candidate drugs for inhibiting PAFr-dependent lung infections caused by the main bacterial drivers of smoking-related COPD.
journal_name
Int J Chron Obstruct Pulmon Disauthors
Shukla SD,Fairbairn RL,Gell DA,Latham RD,Sohal SS,Walters EH,O'Toole RFdoi
10.2147/COPD.S108698subject
Has Abstractpub_date
2016-07-25 00:00:00pages
1647-55eissn
1176-9106issn
1178-2005pii
copd-11-1647journal_volume
11pub_type
杂志文章abstract:Objective:Our aim was to assess the impact of comorbidities on existing COPD prognosis scores. Patients and methods:A total of 543 patients with COPD (FEV1 <80% and FEV1/FVC <70%) were included between January 2003 and January 2004. Patients were stable for at least 6 weeks before inclusion and were followed for 5 yea...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S184695
更新日期:2019-03-07 00:00:00
abstract:Objective:To determine the clinical and economic consequences of inhaled corticosteroid doses and particle size in patients on triple-inhalation therapy for COPD. Methods:Patients aged ≥40 years who initiated treatment with multi-inhaler triple-inhaled therapy between 1 January 2015 and 31 March were included and foll...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S281333
更新日期:2020-12-09 00:00:00
abstract:Objectives:To describe the trends in pharmacologic treatment for patients newly diagnosed with chronic obstructive pulmonary disease (COPD) in Alberta, Canada. Methods:We linked Alberta health databases to identify patients aged ≥35 years with incident COPD between April 2010 and March 2017. Incident cases were define...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S214191
更新日期:2019-09-26 00:00:00
abstract:Rationale:COPD has been perceived as being a disease of older men. However, >7 million women are estimated to live with COPD in the USA alone. Despite a growing body of literature suggesting an increasing burden of COPD in women, the evidence is limited. Objectives:To assess and synthesize the available evidence among...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章,meta分析,评审
doi:10.2147/COPD.S146390
更新日期:2018-05-10 00:00:00
abstract:Purpose:Psychiatric patients present an elevated rate of smoking, and the smoking habit is related to a high morbidity and mortality in this collective. The aim of this study was to determine the prevalence of smoking in patients admitted for psychiatric disorders and its relationship with respiratory disease, the prev...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S165880
更新日期:2018-09-07 00:00:00
abstract:BACKGROUND:The diagnosis and assessment of COPD rely mainly on the use of spirometry, which is an effort-dependent test and requires good patient cooperation. Impulse oscillometry (IOS) is a non-volitional method that requires less effort and cooperation and presents advantages for geriatric patients. However, the clin...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S129974
更新日期:2017-03-15 00:00:00
abstract:Background:Health effects of electronic cigarette (EC) use in patients with chronic obstructive pulmonary disease (COPD) are largely unexplored. Aim:We present findings from a long-term prospective assessment of respiratory parameters in a cohort of COPD patients who ceased or substantially reduced conventional cigare...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S161138
更新日期:2018-08-22 00:00:00
abstract:BACKGROUND:This study was conducted in order to investigate the differences in the respiratory physiology of patients with chronic obstructive pulmonary disease (COPD), asthma-COPD overlap syndrome (ACOS), and asthma with airflow limitation (asthma FL(+)). METHODS:The medical records for a series of all stable patient...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S105988
更新日期:2016-05-09 00:00:00
abstract:BACKGROUND:Cardiac autonomic modulation (CAM) is impaired in patients with stable COPD. Exacerbation aggravates the patients' health status and functional capacity. While the clinical and functional effects of exacerbation are known, no studies investigated CAM during exacerbation and whether there is a relationship be...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S134498
更新日期:2017-07-28 00:00:00
abstract:Purpose:Epigenetic modification is one of most important mechanisms underlying the pathogenesis of chronic obstructive pulmonary disease (COPD). The purpose of this study was to determine whether histone acetyltransferase binding to ORC1 (HBO1) can protect against cigarette smoke (CS)-induced cell apoptosis and sustain...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S234634
更新日期:2020-01-06 00:00:00
abstract:BACKGROUND:Pulmonary rehabilitation (PR) is recommended after a severe COPD exacerbation, but its short- and long-term effects on health care utilization have not been fully established. AIMS:The aims of this study were to evaluate patient compliance with a chronic disease management (CDM) program incorporating home-b...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S138451
更新日期:2017-08-23 00:00:00
abstract:BACKGROUND:COPD is a major cause of death and morbidity worldwide, and is characterized by persistent airflow obstruction. The evaluation of obstruction is critically dependent on sensitive methods for lung-function testing. A wide body of knowledge has been accumulated in recent years showing that these methods have b...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章,评审
doi:10.2147/COPD.S54328
更新日期:2016-07-11 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Alpha-1-antitrypsin deficiency (AATD) is associated with a high risk for the development of early-onset emphysema and liver disease. A large majority of subjects with severe AATD carry the ZZ genotype, which can be easily detected. Another rare pathologic variant, the Mmalton allele, causes a ...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S115940
更新日期:2016-10-11 00:00:00
abstract:Rationale:Individual socioeconomic status has been shown to influence the outcomes of patients with chronic obstructive pulmonary disease (COPD). However, contextual factors may also play a role. The objective of this study is to evaluate the association between neighborhood socioeconomic disadvantage measured by the a...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S238933
更新日期:2020-05-05 00:00:00
abstract::COPD is a chronic inflammatory disease of the lungs associated with an abnormal inflammatory response to noxious particles, the most prevalent of which is cigarette smoke. Studies have demonstrated that cigarette smoking is associated with activation of the bone marrow, and chronic smoking can lead to the inflammatory...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章,评审
doi:10.2147/COPD.S78875
更新日期:2015-10-22 00:00:00
abstract:Introduction:With increasing availability of different treatments for chronic obstructive pulmonary disease (COPD), we sought to understand patient preferences for COPD treatment in the UK, USA, and Germany using a discrete choice experiment (DCE). Methods:Qualitative research identified six attributes associated with...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S221980
更新日期:2020-03-18 00:00:00
abstract:Background:Metabolic syndrome (MetS) is a well-known comorbidity of chronic obstructive pulmonary disease (COPD). However, their interrelationship, particularly in early COPD, remains unclear. Therefore, we aimed to assess the prevalence and clinical characteristics of MetS in patients with early COPD, and to explore t...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S228497
更新日期:2019-12-10 00:00:00
abstract:BACKGROUND:Whereas the epidemiological association between lung cancer and chronic obstructive pulmonary disease (COPD), a chronic inflammatory respiratory disease, is well known, limited studies have examined the association between lung cancer and non-cystic fibrosis bronchiectasis, a representative chronic airway in...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S80439
更新日期:2015-05-04 00:00:00
abstract:PURPOSE:This study was conducted to determine COPD severity at the time of diagnosis as confirmed by spirometry in patients treated in a US managed care setting. PATIENTS AND METHODS:All patients with one or more inpatient stays, one or more emergency department visits, or two or more outpatient visits with diagnosis ...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S16975
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:Smoking is a major risk factor for chronic obstructive pulmonary disease (COPD); however, the similarities and differences in clinical presentation between smokers and nonsmokers are not fully described in patients with COPD. This study was designed to address this issue in a general teaching hospital in the...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S52416
更新日期:2014-01-01 00:00:00
abstract::Health status questionnaires provide standardized measures of patients' perceptions of the impact of disease on their daily life and well-being. Factors associated with health status were examined in a sample of 58 outpatients with chronic obstructive pulmonary disease (COPD) and co-morbid anxiety and/or depression. A...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章,随机对照试验
doi:
更新日期:2007-01-01 00:00:00
abstract:PURPOSE:Endobronchial valve (EBV) therapy is increasingly being seen as a therapeutic option for advanced emphysema, but its clinical utility in Asian populations, who may have different phenotypes to other ethnic populations, has not been assessed. PATIENTS AND METHODS:This prospective open-label single-arm clinical ...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 临床试验,杂志文章
doi:10.2147/COPD.S85744
更新日期:2015-07-29 00:00:00
abstract::Regenerative or stem cell therapy is an emerging field of treatment based on stimulation of endogenous resident stem cells or administration of exogenous stem cells to treat diseases or injury and to replace malfunctioning or damaged tissues. Current evidence suggests that in the lung, these cells may participate in t...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章,评审
doi:10.2147/COPD.S49519
更新日期:2014-12-12 00:00:00
abstract:Purpose:Improvement in the diagnosis of asthma and chronic obstructive pulmonary disease (COPD) overlap (ACO), and identification of biomarkers for phenotype recognition will encourage good patient care by providing optimal therapy. We investigated club cell secretory protein (CC-16), a protective and anti-inflammatory...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章,多中心研究
doi:10.2147/COPD.S174545
更新日期:2018-10-18 00:00:00
abstract::Chronic obstructive pulmonary disease (COPD) is one of the top five major causes of morbidity and mortality worldwide. Despite worldwide health care efforts, costs, and medical research, COPD figures demonstrate a continuously increasing tendency in mortality. This is contrary to other top causes of death, such as neo...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章,评审
doi:10.2147/COPD.S106160
更新日期:2016-07-13 00:00:00
abstract:BACKGROUND:The aim of this study was to determine whether long-term intermittent azithromycin therapy reduces the frequency of exacerbation in severe chronic obstructive pulmonary disease (COPD). METHODS:We retrospectively investigated the clinical benefits of long-term azithromycin (500 mg orally three times per week...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S23655
更新日期:2011-01-01 00:00:00
abstract::Impaired physical performance is common in chronic obstructive pulmonary disease (COPD), but its assessment can be difficult in routine clinical practice. We compared the timed up and go (TUG) test and other easily applied assessments of physical performance with the 6-minute walk distance (6MWD). In a longitudinal st...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S106151
更新日期:2016-08-02 00:00:00
abstract:Purpose:Peripheral blood eosinophilic counts are susceptible to many factors and have variability over time. There are limited studies on association of blood eosinophilia with long-term mortality of chronic obstructive pulmonary disease (COPD) patients and these results remain controversial. Our aims were to explore t...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S245056
更新日期:2020-05-19 00:00:00
abstract:Background:Microparticles (MPs) are shedding membrane vesicles released from activated blood and endothelial cells under inflammatory conditions. The role of endothelial MPs (EMPs) in pathophysiology of COPD is relatively well known. However, the release and function of MPs of other cellular origins, eg, platelets, red...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S175607
更新日期:2018-11-15 00:00:00
abstract:Introduction:Biomass smoke exposure (BSE) is a recognized cause of COPD particularly in rural areas. However, little research has been focused on BSE in suburban areas. Objective:The aim of this study was to determine the prevalence of COPD, respiratory symptoms (RS) and BSE in women living in a suburban area of Mexic...
journal_title:International journal of chronic obstructive pulmonary disease
pub_type: 杂志文章
doi:10.2147/COPD.S156409
更新日期:2018-05-25 00:00:00