Permeability, inflammation and oxidant status in airspace epithelium exposed to ozone.

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 Med

journal_title

Respiratory medicine

authors

Morrison D,Rahman I,MacNee W

doi

10.1016/j.rmed.2005.10.005

subject

Has Abstract

pub_date

2006-12-01 00:00:00

pages

2227-34

issue

12

eissn

0954-6111

issn

1532-3064

pii

S0954-6111(05)00428-2

journal_volume

100

pub_type

杂志文章
  • The impact of cognitive impairment on self-management in chronic obstructive pulmonary disease: A systematic review.

    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

    authors: Baird C,Lovell J,Johnson M,Shiell K,Ibrahim JE

    更新日期:2017-08-01 00:00:00

  • Prognostic factors in diffuse malignant pleural mesothelioma: effects of pretreatment clinical and laboratory characteristics.

    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

    authors: Metintas M,Metintas S,Ucgun I,Gibbs AR,Harmanci E,Alatas F,Erginel S,Tel N,Pasaoglu O

    更新日期:2001-10-01 00:00:00

  • TNF-alpha gene polymorphism and TNF-alpha levels in obese Asian Indians with obstructive sleep apnea.

    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

    authors: Bhushan B,Guleria R,Misra A,Luthra K,Vikram NK

    更新日期:2009-03-01 00:00:00

  • Respiratory syncytial virus prophylaxis--the story so far.

    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

    authors: Simoes EA,Groothuis JR

    更新日期:2002-04-01 00:00:00

  • Restless legs syndrome: A new comorbidity in idiopathic pulmonary fibrosis.

    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

    authors: Varone F,Friello L,Di Blasi C,Sgalla G,Luigetti M,Iovene B,Richeldi L,Della Marca G,Brunetti V

    更新日期:2020-01-01 00:00:00

  • Deficiency of pulmonary Valpha24 Vbeta11 natural killer T cells in corticosteroid-naïve sarcoidosis patients.

    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

    authors: Korosec P,Rijavec M,Silar M,Kern I,Kosnik M,Osolnik K

    更新日期:2010-04-01 00:00:00

  • Non-invasive ventilation at home improves survival and decreases healthcare utilization in medicare beneficiaries with Chronic Obstructive Pulmonary Disease with chronic respiratory failure.

    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

    authors: Frazier WD,Murphy R,van Eijndhoven E

    更新日期:2020-12-30 00:00:00

  • Bronchoalveolar lavage for the diagnosis of Pulmonary Langerhans cell histiocytosis.

    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

    authors: Lommatzsch M,Bratke K,Stoll P,Mülleneisen N,Prall F,Bier A,Virchow JC

    更新日期:2016-10-01 00:00:00

  • Risk factors for development of asthma in children and adolescents: findings from a longitudinal population study.

    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

    authors: Ulrik CS,Backer V,Hesse B,Dirksen A

    更新日期:1996-11-01 00:00:00

  • Comparison of Symbicort® versus Pulmicort® on steroid pharmacodynamic markers in asthma patients.

    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

    authors: Essilfie-Quaye S,Ito K,Ito M,Kharitonov SA,Barnes PJ

    更新日期:2011-12-01 00:00:00

  • Changes in airway hyperresponsiveness following smoking cessation: comparisons between Mch and AMP.

    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

    authors: Piccillo G,Caponnetto P,Barton S,Russo C,Origlio A,Bonaccorsi A,Di Maria A,Oliveri C,Polosa R

    更新日期:2008-02-01 00:00:00

  • How to investigate a suspected immune deficiency in adults.

    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

    authors: Grammatikos A,Bright P,Bhatnagar R,Johnston S

    更新日期:2020-09-01 00:00:00

  • Effect of nasal inflammation and of intranasal anti-inflammatory treatment on bronchial asthma.

    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

    authors: Mygind N,Dahl R,Nielsen LP

    更新日期:1998-03-01 00:00:00

  • Once-weekly azithromycin in cystic fibrosis with chronic Pseudomonas aeruginosa infection.

    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

    authors: Steinkamp G,Schmitt-Grohe S,Döring G,Staab D,Pfründer D,Beck G,Schubert R,Zielen S

    更新日期:2008-11-01 00:00:00

  • Military service-aggravated asthma improves at two-year follow-up.

    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

    authors: Lindström I,Koponen P,Luukkonen R,Pallasaho P,Kauppi P,Latvala J,Karjalainen A,Lauerma A

    更新日期:2009-12-01 00:00:00

  • Effectiveness of omalizumab in patients with inadequately controlled severe persistent allergic asthma: an open-label study.

    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

    authors: Niven R,Chung KF,Panahloo Z,Blogg M,Ayre G

    更新日期:2008-10-01 00:00:00

  • Appraisal of lens opacity with mometasone furoate/formoterol fumarate combination in patients with COPD or asthma.

    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

    authors: Maspero J,Cherrez I,Doherty DE,Tashkin DP,Kuna P,Kuo WL,Gates D,Nolte H,Chylack LT Jr

    更新日期:2014-09-01 00:00:00

  • Accuracy of polimerase chain reaction for the diagnosis of pleural tuberculosis.

    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

    authors: Trajman A,da Silva Santos Kleiz de Oliveira EF,Bastos ML,Belo Neto E,Silva EM,da Silva Lourenço MC,Kritski A,Oliveira MM

    更新日期:2014-06-01 00:00:00

  • Cough induced by low pH.

    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

    authors: Wong CH,Matai R,Morice AH

    更新日期:1999-01-01 00:00:00

  • A comparison of the expression of lymphocyte activation markers in blood, bronchial biopsies and bronchoalveolar lavage: evidence for an enrichment of activated T lymphocytes in the bronchoalveolar space.

    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

    authors: Ekberg-Jansson A,Arvå E,Nilsson O,Löfdahl CG,Andersson B

    更新日期:1999-08-01 00:00:00

  • Prophylactic use of noninvasive ventilation in patients undergoing lung resectional surgery.

    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

    authors: Perrin C,Jullien V,Vénissac N,Berthier F,Padovani B,Guillot F,Coussement A,Mouroux J

    更新日期:2007-07-01 00:00:00

  • Skeletal muscle changes in patients with obstructive sleep apnoea syndrome.

    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

    authors: Sauleda J,García-Palmer FJ,Tarraga S,Maimó A,Palou A,Agustí AG

    更新日期:2003-07-01 00:00:00

  • Artificial pneumothorax by the Veress cannula: efficacy and safety.

    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

    authors: Faurschou P,Viskum K

    更新日期:1997-08-01 00:00:00

  • Lung function in patients with chronic airflow obstruction due to tuberculous destroyed lung.

    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

    authors: Lee JH,Chang JH

    更新日期:2003-11-01 00:00:00

  • Efficacy, safety, and dose response of glycopyrronium administered by metered dose inhaler using co-suspension delivery technology in subjects with intermittent or mild-to-moderate persistent asthma: A randomized controlled trial.

    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

    authors: Kerwin E,Wachtel A,Sher L,Nyberg J,Darken P,Siddiqui S,Duncan EA,Reisner C,Dorinsky P

    更新日期:2018-06-01 00:00:00

  • Therapeutic equivalence of inhaled beclomethasone dipropionate with CFC and non-CFC (HFA 134a) propellants both delivered via the Easibreathe inhaler for the treatment of paediatric asthma.

    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

    authors: Farmer IS,Middle M,Savic J,Perri VL,Herdman MJ

    更新日期:2000-01-01 00:00:00

  • Survival and future need of long-term oxygen therapy for chronic obstructive pulmonary disease--gender differences.

    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

    authors: Franklin KA,Gustafson T,Ranstam J,Ström K

    更新日期:2007-07-01 00:00:00

  • Adverse event and treatment completion rates of a 12-dose weekly isoniazid and rifapentine course for South Korean healthcare workers.

    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

    authors: Jo KW,Kim JS,Kwon HS,Park YE,Kim JY,Hong MJ,Shim TS

    更新日期:2019-01-01 00:00:00

  • Endoscopic closure of acquired oesophagorespiratory fistulas with cardiac septal defect occluders or vascular plugs.

    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

    authors: Li J,Gao X,Chen J,Lao M,Wang S,Zeng G

    更新日期:2015-08-01 00:00:00

  • Lung ultrasound as a diagnostic tool for radiographically-confirmed pneumonia in low resource settings.

    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

    authors: Ellington LE,Gilman RH,Chavez MA,Pervaiz F,Marin-Concha J,Compen-Chang P,Riedel S,Rodriguez SJ,Gaydos C,Hardick J,Tielsch JM,Steinhoff M,Benson J,May EA,Figueroa-Quintanilla D,Checkley W,Lung Ultrasound for Pneumonia Asse

    更新日期:2017-07-01 00:00:00