Abstract:
:The aim of the study was to investigate possible mechanisms of epithelial injury in normal subjects exposed to environmentally relevant concentrations of ozone. Fifteen healthy non-smoking subjects (M:F 12:3) were studied. Five of the 15 subjects were exposed to filtered air, six were exposed to ozone 100 parts per billion (ppb) and seven were exposed to ozone 400 ppb with 99mtechnetium labelled diethylene-triamine-penta-acetate (99mTc-DTPA) or bronchoalveolar lavage (BAL) performed 1 or 6 h after exposure as indicated above. All the above studies were performed on different occasions at least 5 days apart. The subjects were exposed on each occasion for 1h during intermittent exercise at a ventilation of 40l min-1. 99mTc-DTPA lung clearance did not change after either level of ozone exposure, but neutrophils increased in BAL 6 h after exposure to 400 ppb. Superoxide anion release from mixed BAL leucocytes decreased 1 h after 100 ppb and 6 h after 400 ppb. Products of lipid peroxidation in epithelial lining fluid decreased both 1 and 6 h after 400 ppb. There was no change in anti-oxidant capacity or glutathione concentrations. Ozone exposure did not increase epithelial permeability, but was associated with neutrophil influx into the airspaces, without evidence of increased oxidative stress.
journal_name
Respir Medjournal_title
Respiratory medicineauthors
Morrison D,Rahman I,MacNee Wdoi
10.1016/j.rmed.2005.10.005subject
Has Abstractpub_date
2006-12-01 00:00:00pages
2227-34issue
12eissn
0954-6111issn
1532-3064pii
S0954-6111(05)00428-2journal_volume
100pub_type
杂志文章abstract:OBJECTIVE:To determine the characteristics of persons with cognitive impairment being able to self-manage in chronic obstructive pulmonary disease (COPD). METHODS:In accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidance this systematic review examined all studies in E...
journal_title:Respiratory medicine
pub_type: 杂志文章,评审
doi:10.1016/j.rmed.2017.06.006
更新日期:2017-08-01 00:00:00
abstract::The aim of this study was to investigate the effects of various pretreatment clinical and laboratory characteristics on the survival of patients with diffuse malignant pleural mesothelioma (DMPM). One hundred histopathologically confirmed DMPM patients were evaluated. Fifty-nine were treated with chemoimmunotherapy wh...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1053/rmed.2001.1178
更新日期:2001-10-01 00:00:00
abstract:BACKGROUND:Obstructive sleep apnea (OSA) is emerging as a significant disorder in India. Tumor necrosis factor-alpha (TNFalpha) is an important marker of inflammation. Recent data indicate that inflammation may be an important correlate of OSA. The relationships of OSA with TNFalpha levels and TNFalpha gene promoter po...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2008.10.001
更新日期:2009-03-01 00:00:00
abstract::Respiratory syncytial virus (RSV) is a common and highly contagious pathogen that infects nearly all children by the age of 2 years. It is responsible for significant morbidity and mortality worldwide among certain high-risk paediatric populations. Therapy is sub-optimal for RSV, thus treatment focuses on ameliorating...
journal_title:Respiratory medicine
pub_type: 杂志文章,评审
doi:10.1016/s0954-6111(02)90066-1
更新日期:2002-04-01 00:00:00
abstract:OBJECTIVE:Sleep disorders have a high prevalence among patients with idiopathic pulmonary fibrosis (IPF). The prevalence of restless legs syndrome (RLS) is not known in these patients, neither is its clinical impact as a comorbidity. We investigated the association of RLS with IPF and characterized the clinical feature...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2020.105982
更新日期:2020-01-01 00:00:00
abstract::Invariant natural killer T (NKT) cells might contribute to the amplified and prolonged T-cell immune response that characterizes sarcoidosis. Therefore, we want to investigate the frequency and distribution of pulmonary invariant NKT cells in corticosteroid-naïve patients with sarcoidosis. We used multi-parameter flow...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2009.11.008
更新日期:2010-04-01 00:00:00
abstract:BACKGROUND:Patients with Chronic Obstructive Pulmonary Disease with chronic respiratory failure (COPD-CRF) experience high mortality and healthcare utilization. Non-invasive home ventilation (NIVH) is increasingly used in such patients. We examined the associations between NIVH and survival, hospitalizations, and emerg...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2020.106291
更新日期:2020-12-30 00:00:00
abstract:BACKGROUND:The histologic diagnosis of Pulmonary Langerhans cell histiocytosis (PLCH) is invasive and can cause complications. To confirm the diagnosis of PLCH, guidelines therefore recommend measuring CD1a-positive bronchoalveolar lavage fluid (BALF) cells despite its poor sensitivity and specificity. Thus, an improve...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2016.09.004
更新日期:2016-10-01 00:00:00
abstract:BACKGROUND:The prevalence of asthma appears to be on the increase, and risk factors are not well established. To investigate risk factors for the development of asthma, a population sample of children and adolescents, aged 7-17 years at enrolment, were studied in 1986. Initial examinations were repeated at follow-up in...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/s0954-6111(96)90021-9
更新日期:1996-11-01 00:00:00
abstract:BACKGROUND:Combination therapy with inhaled corticosteroids (ICS) and long-acting β(2)-adrenergic agonists (LABA) is reported to have superior effects on controlling asthma symptoms to ICS alone; however, there is no molecular-based evidence to explain the clinical effects. Here, the effect of the ICS/LABA combination ...
journal_title:Respiratory medicine
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.rmed.2011.08.020
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND:Given the observed association between smoking, inflammation and airway hyperresponsiveness (AHR) one may predict that smoking cessation may improve AHR. However, only a few studies have investigated the effect of smoking on AHR and their results appear to be conflicting depending on the stimulus used in the...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2007.09.004
更新日期:2008-02-01 00:00:00
abstract::Patients with immune deficiencies can present with variable clinical phenotypes. This often translates into a significant delay in their diagnosis, and resultant patient morbidity. This review summarises the most common types of immunodeficiency disorders, primary and secondary, along with their key features. It provi...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2020.106100
更新日期:2020-09-01 00:00:00
abstract::It is logical to look upon the nose and the bronchi as integrated parts of one 'united airway' and we would like to advance the hypothesis that optimal management of airway disease, caused by inhaled allergens, may necessitate control of inflammation in all parts of the airways. Nasal inflammation can aggravate asthma...
journal_title:Respiratory medicine
pub_type: 杂志文章,评审
doi:10.1016/s0954-6111(98)90306-7
更新日期:1998-03-01 00:00:00
abstract:BACKGROUND:Data on the effects of long-term treatment with azithromycin (AZM) on inflammatory markers in cystic fibrosis patients chronically infected with Pseudomonas aeruginosa are scarce. So far there is no pharmacokinetic and clinical data on once-weekly dosage of AZM in CF patients. METHODS:In a randomised double...
journal_title:Respiratory medicine
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.rmed.2008.03.009
更新日期:2008-11-01 00:00:00
abstract:BACKGROUND:During military service young men (age 19-21 years) are exposed to many predisposing factors for asthma. We aimed to study the short-term prognosis of asthma after the military service. METHODS:All 216 men with verified asthma in 2004-2005 from the register of the Central Military Hospital were included in ...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2009.05.022
更新日期:2009-12-01 00:00:00
abstract:BACKGROUND:In a 1-year, randomized, open-label study in patients with moderate-to-severe allergic (immunoglobulin E (IgE)-mediated) asthma, adding omalizumab to best standard care (BSC) significantly improved efficacy outcomes compared with BSC alone (control). We assessed the efficacy of omalizumab in the subgroup of ...
journal_title:Respiratory medicine
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.rmed.2008.06.002
更新日期:2008-10-01 00:00:00
abstract:BACKGROUND:Long-term corticosteroid use may increase cataract risk. The Lens Opacities Classification System (LOCS) III ranked lens opacities as Class 1: 0.5-0.9 unit; Class 2: 1.0-1.4 units; or Class 3: ≥1.5 units in clinical trials of combined mometasone furoate and formoterol (MF/F) administered by metered-dose inha...
journal_title:Respiratory medicine
pub_type: 杂志文章,meta分析
doi:10.1016/j.rmed.2014.04.015
更新日期:2014-09-01 00:00:00
abstract:INTRODUCTION:Polymerase chain reaction (PCR)-based techniques to detect Mycobacterium tuberculosis DNA in respiratory specimens have been increasingly used to diagnose pulmonary tuberculosis. Their use in non-respiratory specimens to diagnose extrapulmonary tuberculosis is, however, controversial. In this study, we est...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2014.04.007
更新日期:2014-06-01 00:00:00
abstract::Citric acid has been used as a tussive agent in the investigation of the cough reflex. The mechanism of cough stimulation remains unclear. We conducted studies to compare the cough response of citric acid to an organic (acetic acid) and an inorganic acid (phosphoric acid). We also compared the cough response of citric...
journal_title:Respiratory medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0954-6111(99)90078-1
更新日期:1999-01-01 00:00:00
abstract::In this study healthy never-smoking subjects (n = 18) were recruited from a population study. Bronchoalveolar lavage (BAL), blood lymphocytes and bronchial biopsies, analysed both in the epithelium and lamina propria, were stained for T and B lymphocytes, natural killer (NK) cells and different subpopulations of T lym...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/s0954-6111(99)90156-7
更新日期:1999-08-01 00:00:00
abstract:QUESTION OF THE STUDY:We studied whether prophylactic use of noninvasive pressure support ventilation (NIPSV) administered pre- and postoperatively may reduce the postoperative pulmonary function impairment. PATIENTS AND METHODS:Prospective randomized clinical trial. Thirty-nine patients with a preoperative FEV(1) <70...
journal_title:Respiratory medicine
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.rmed.2006.12.002
更新日期:2007-07-01 00:00:00
abstract::Previous studies have shown that chronic hypoxia leads to changes in skeletal muscle structure (fibre size and type) and activities of several bioenergetic enzymes. Whether this occurs also in conditions characterised by intermittent hypoxia, such as the obstructive sleep apnoea syndrome (OSAS), is unknown. To explore...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/s0954-6111(03)00034-9
更新日期:2003-07-01 00:00:00
abstract::In 16 patients with pulmonary fibrosis, an artificial pneumothorax was introduced using the Veress cannula and the Saugman water manometer. Atmospheric air was introduced by fractionated insufflation to a total volume of 800 ml (median). The interpleural space was found on the first attempt, and in all cases, fraction...
journal_title:Respiratory medicine
pub_type: 临床试验,杂志文章
doi:10.1016/s0954-6111(97)90253-5
更新日期:1997-08-01 00:00:00
abstract::Lung function in cases of chronic airflow obstruction (CAO) due to tuberculous destroyed lung, which is still common in Korea, has not been objectively investigated. We evaluated lung functions and postbronchodilator responses in 21 CAO patients with a forced expiratory volume in 1 s (FEV1) of 30-65% of the predicted ...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/s0954-6111(03)00255-5
更新日期:2003-11-01 00:00:00
abstract:OBJECTIVES:This randomized, double-blind, placebo-controlled, cross-over, Phase II dose-ranging study investigated the efficacy and safety of GP MDI (glycopyrronium administered by metered dose inhaler formulated using co-suspension delivery technology) compared with an open-label active comparator, salmeterol dry powd...
journal_title:Respiratory medicine
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.rmed.2018.04.013
更新日期:2018-06-01 00:00:00
abstract::Chlorofluorocarbon (CFC)-containing inhalers for use in the treatment of asthma are to be phased out under the terms of the Montreal Protocol (1). In this multi-centre, randomized, double-blind study, the therapeutic equivalence of two formulations of beclomethasone dipropionate (BDP) containing CFC or non-CFC (HFA134...
journal_title:Respiratory medicine
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1053/rmed.1999.0678
更新日期:2000-01-01 00:00:00
abstract::We aimed to study trends in gender-related differences in incidence, and prevalence for long-term oxygen therapy due to chronic obstructive pulmonary disease. Another aim was to study survival after onset of oxygen therapy. Prospectively followed were 5689 Swedish patients, who were prescribed oxygen therapy because o...
journal_title:Respiratory medicine
pub_type: 杂志文章,多中心研究
doi:10.1016/j.rmed.2007.01.009
更新日期:2007-07-01 00:00:00
abstract:PURPOSE:We investigated the adverse events (AEs) and treatment completion rates of a 3 month course of once-weekly isoniazid and rifapentine (3H1P1) in South Korean health care workers (HCWs) with latent tuberculosis infection (LTBI). METHODS:HCWs who were candidates for LTBI treatment were enrolled from two tertiary ...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2019.10.005
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVES:To report an endoscopic treatment for inoperable oesophagorespiratory fistulas (ORFs). PATIENTS AND METHODS:Six patients with inoperable acquired tracheobronchial-oesophageal fistulas (four males and two females; mean age, 70.2 ± 10.28 years) were included. Cardiac septal defect occluders or vascular plugs ...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2015.04.014
更新日期:2015-08-01 00:00:00
abstract:BACKGROUND:Pneumonia is a leading cause of morbidity and mortality in children worldwide; however, its diagnosis can be challenging, especially in settings where skilled clinicians or standard imaging are unavailable. We sought to determine the diagnostic accuracy of lung ultrasound when compared to radiographically-co...
journal_title:Respiratory medicine
pub_type: 杂志文章
doi:10.1016/j.rmed.2017.05.007
更新日期:2017-07-01 00:00:00