Controlled exposures of young asthmatics to mixed oxidant gases and acid aerosol.

abstract：:Although transbronchial lung biopsy (TBBx) is widely acknowledged as the "gold standard" for diagnosis of acute rejection, controversy exists regarding the need to perform follow-up procedures. Over a 5-yr period, we performed 1,142 TBBx of which 173 were follow-up TBBx in 99 patients with pulmonary allograft rejectio...

journal_title：American journal of respiratory and critical care medicine

authors： Aboyoun CL,Tamm M,Chhajed PN,Hopkins P,Malouf MA,Rainer S,Glanville AR

更新日期：2001-08-01 00:00:00

abstract：RATIONALE:The Severe Asthma Research Program cohort includes subjects with persistent asthma who have undergone detailed phenotypic characterization. Previous univariate methods compared features of mild, moderate, and severe asthma. OBJECTIVES:To identify novel asthma phenotypes using an unsupervised hierarchical clu...

journal_title：American journal of respiratory and critical care medicine

authors： Moore WC,Meyers DA,Wenzel SE,Teague WG,Li H,Li X,D'Agostino R Jr,Castro M,Curran-Everett D,Fitzpatrick AM,Gaston B,Jarjour NN,Sorkness R,Calhoun WJ,Chung KF,Comhair SA,Dweik RA,Israel E,Peters SP,Busse WW,Erzurum

更新日期：2010-02-15 00:00:00

abstract：:During Operation Everest III (Comex '97), to assess the consequences of altitude-induced hypoxia, eight volunteers were decompressed in a hypobaric chamber, with a decompression profile simulating the climb of Mount Everest. Cardiac function was assessed using a combination of M-mode and two-dimensional echocardiograp...

journal_title：American journal of respiratory and critical care medicine

authors： Boussuges A,Molenat F,Burnet H,Cauchy E,Gardette B,Sainty JM,Jammes Y,Richalet JP

更新日期：2000-01-01 00:00:00

abstract：:This study was designed to evaluate the value and applicability of tidal breathing pattern analysis to assess airflow obstruction in young children. The time needed to reach maximal tidal expiratory flow (TME) divided by total expiratory time (TE) was measured in 228 healthy children 3 to 11 yr of age, 64 patients wit...

journal_title：American journal of respiratory and critical care medicine

authors： van der Ent CK,Brackel HJ,van der Laag J,Bogaard JM

更新日期：1996-04-01 00:00:00

abstract：:Chronic obstructive pulmonary disease (COPD) is a common and progressive disease that is influenced by both genetic and environmental factors. For many years, knowledge of the genetic basis of COPD was limited to Mendelian syndromes, such as alpha-1 antitrypsin deficiency and cutis laxa, caused by rare genetic variant...

journal_title：American journal of respiratory and critical care medicine

authors： Ragland MF,Benway CJ,Lutz SM,Bowler RP,Hecker J,Hokanson JE,Crapo JD,Castaldi PJ,DeMeo DL,Hersh CP,Hobbs BD,Lange C,Beaty TH,Cho MH,Silverman EK

更新日期：2019-09-15 00:00:00

abstract：RATIONALE:Although intensive care units (ICUs) were created for patients with life-threatening illnesses, the ICU environment generates a high risk of iatrogenic events. Identifying medical errors (MEs) that serve as indicators for iatrogenic risk is crucial for purposes of reporting and prevention. OBJECTIVES:We desc...

journal_title：American journal of respiratory and critical care medicine

authors： Garrouste-Orgeas M,Timsit JF,Vesin A,Schwebel C,Arnodo P,Lefrant JY,Souweine B,Tabah A,Charpentier J,Gontier O,Fieux F,Mourvillier B,Troché G,Reignier J,Dumay MF,Azoulay E,Reignier B,Carlet J,Soufir L,OUTCOMEREA Stu

更新日期：2010-01-15 00:00:00

abstract：RATIONALE:Bronchial remodeling, including increased bronchial smooth muscle (BSM) mass, contributes to bronchial obstruction in asthma. However, its mechanisms are complex and remain controversial. Recently, a role of the chitinase 3-like 1 protein (YKL-40) has been evoked in asthma. Indeed, YKL-40 concentration was in...

journal_title：American journal of respiratory and critical care medicine

authors： Bara I,Ozier A,Girodet PO,Carvalho G,Cattiaux J,Begueret H,Thumerel M,Ousova O,Kolbeck R,Coyle AJ,Woods J,Tunon de Lara JM,Marthan R,Berger P

更新日期：2012-04-01 00:00:00

abstract：:Loss of lung elastic recoil causing hyperinflation with increased TLC and decreased diffusing capacity and expiratory airflow are physiologic hallmarks of emphysema. We studied lung mechanics in 10 patients (seven men and three women) aged 69 +/- 9 yr (mean +/- SD) who had fixed, severe expiratory airflow limitation w...

journal_title：American journal of respiratory and critical care medicine

authors： Gelb AF,Zamel N,Hogg JC,Müller NL,Schein MJ

更新日期：1998-09-01 00:00:00

abstract：:Previous studies have shown that the allergic late airway response (LR) is dependent on the leukotriene (LT) pathway in Brown Norway (BN) rats. In this same model, interleukin-2 (IL-2) has been shown to increase allergic airway responses without increasing LT production. This study examined the relationship between th...

journal_title：American journal of respiratory and critical care medicine

authors： Nag S,Lamkhioued B,Renzi PM

更新日期：2002-06-01 00:00:00

abstract：:In normal airways, invasion of small numbers of pathogenic bacteria will not give rise to injury or local colonization. In chronic obstructive pulmonary disease, however, local conditions are changed, which may impair local defense systems and facilitate infection. These include: (1) factors promoting bacterial adhere...

journal_title：American journal of respiratory and critical care medicine

authors： Jansen HM,Sachs AP,van Alphen L

更新日期：1995-06-01 00:00:00

abstract：:Background: This document provides evidence-based clinical practice guidelines on the management of adult patients with community-acquired pneumonia.Methods: A multidisciplinary panel conducted pragmatic systematic reviews of the relevant research and applied Grading of Recommendations, Assessment, Development, and Ev...

journal_title：American journal of respiratory and critical care medicine

authors： Metlay JP,Waterer GW,Long AC,Anzueto A,Brozek J,Crothers K,Cooley LA,Dean NC,Fine MJ,Flanders SA,Griffin MR,Metersky ML,Musher DM,Restrepo MI,Whitney CG

更新日期：2019-10-01 00:00:00

abstract：:The period covered by this update can be considered as the most exciting period in idiopathic pulmonary fibrosis (IPF) research. It started with the identification of genetic variants that are associated with IPF in the majority of patients and continued with discovery of molecular and genetic biomarkers that predict ...

journal_title：American journal of respiratory and critical care medicine

authors： Rosas IO,Kaminski N

更新日期：2015-02-01 00:00:00

abstract：RATIONALE:Little is known about the incidence of isoniazid-associated hepatitis in HIV-infected Africans who receive both isoniazid preventive therapy (IPT) and antiretroviral therapy (ART). OBJECTIVES:To assess the rate of and risk factors for isoniazid (INH)-associated hepatitis in persons living with HIV (PLWH) dur...

journal_title：American journal of respiratory and critical care medicine

authors： Tedla Z,Nyirenda S,Peeler C,Agizew T,Sibanda T,Motsamai O,Vernon A,Wells CD,Samandari T

更新日期：2010-07-15 00:00:00

abstract：:Luteolin is a flavonoid that has been shown to reduce proinflammatory molecule expression in vitro. In the present study, we have tested the ability of luteolin to inhibit lipopolysaccharide (LPS)- induced lethal toxicity and proinflammatory molecule expression in vivo. Mice receiving LPS (Salmonella enteriditis LPS, ...

journal_title：American journal of respiratory and critical care medicine

authors： Kotanidou A,Xagorari A,Bagli E,Kitsanta P,Fotsis T,Papapetropoulos A,Roussos C

更新日期：2002-03-15 00:00:00

abstract：RATIONALE:Matrix metalloproteinase-7 (MMP-7) has been implicated in interstitial lung disease pathobiology and proposed as a diagnostic and prognostic biomarker of idiopathic pulmonary fibrosis. OBJECTIVES:To test associations between serum MMP-7 and lung function, respiratory symptoms, interstitial lung abnormalities...

journal_title：American journal of respiratory and critical care medicine

authors： Armstrong HF,Podolanczuk AJ,Barr RG,Oelsner EC,Kawut SM,Hoffman EA,Tracy R,Kaminski N,McClelland RL,Lederer DJ

更新日期：2017-11-15 00:00:00

abstract：RATIONALE:The sympathetic nervous system has been reported to be activated in pulmonary arterial hypertension (PAH). OBJECTIVES:We investigated the prognostic significance of muscle sympathetic nervous system activity (MSNA) in PAH. METHODS:Thirty-two patients with PAH were included in the study and underwent a measu...

journal_title：American journal of respiratory and critical care medicine

authors： Ciarka A,Doan V,Velez-Roa S,Naeije R,van de Borne P

更新日期：2010-06-01 00:00:00

abstract：:In asthma, the acute increment of airway responsiveness caused by exposure to allergen is associated with influx of eosinophils into the airways. The relationship between chronic airway hyperresponsiveness and airway inflammation is unclear, as they do not change consistently following long-term anti-inflammatory trea...

journal_title：American journal of respiratory and critical care medicine

authors： Crimi E,Spanevello A,Neri M,Ind PW,Rossi GA,Brusasco V

更新日期：1998-01-01 00:00:00

abstract：:Sensitive measures of lung function applicable to young subjects are needed to detect early cystic fibrosis (CF) lung disease. Forty children with CF aged 2 to 5 years and 37 age-matched healthy control subjects performed multiple-breath inert gas washout, plethysmography, and spirometry. Thirty children in each group...

journal_title：American journal of respiratory and critical care medicine

authors： Aurora P,Bush A,Gustafsson P,Oliver C,Wallis C,Price J,Stroobant J,Carr S,Stocks J,London Cystic Fibrosis Collaboration.

更新日期：2005-02-01 00:00:00

abstract：:Obstructive sleep apnea (OSA) is traditionally diagnosed using overnight polysomnography. Decision rules may provide an alternative to polysomnography. A consecutive series of patients referred to a tertiary sleep center underwent prospective evaluation with the upper airway physical examination protocol, followed by ...

journal_title：American journal of respiratory and critical care medicine

authors： Tsai WH,Remmers JE,Brant R,Flemons WW,Davies J,Macarthur C

更新日期：2003-05-15 00:00:00

abstract：:We hypothesized that a leukotriene receptor antagonist (LTRA) could provide bronchoprotection against the cold, dry air-induced response in asthmatic preschool children. In a randomized, double-blind, placebo-controlled crossover study, we examined the effect of the specific LTRA montelukast at 5 mg/d for 2 d on the b...

journal_title：American journal of respiratory and critical care medicine

authors： Bisgaard H,Nielsen KG

更新日期：2000-07-01 00:00:00

abstract：:Sarcoidosis is a systemic disorder of unknown origin, primarily affecting the lungs. The granulomatous inflammation is driven by the interplay between various molecules and cells, including T cells. Previously, our group reported a close correlation between lung-restricted T-cell receptor (TCR) AV2S3 CD4-positive T-ce...

journal_title：American journal of respiratory and critical care medicine

authors： Katchar K,Wahlström J,Eklund A,Grunewald J

更新日期：2001-06-01 00:00:00

abstract：RATIONALE:Ipsilateral recurrence rates of spontaneous pneumothorax after video-assisted thoracoscopic surgery are higher than rates after open thoracotomy. OBJECTIVES:This study was conducted to determine whether additional minocycline pleurodesis would be effective in diminishing recurrence after video-assisted thora...

journal_title：American journal of respiratory and critical care medicine

authors： Chen JS,Hsu HH,Chen RJ,Kuo SW,Huang PM,Tsai PR,Lee JM,Lee YC

更新日期：2006-03-01 00:00:00

abstract：:Normoxic lung ischemia/reperfusion (I/R) leads to oxidative injury of the pulmonary tissue. We analyzed angiotensin-converting enzyme (ACE) in perfused rat lungs upon I/R in order to assess the endothelial injury produced. I/R led to a time-dependent increase in ACE activity in the perfusate, from 145+/-14 mU to 252+/...

journal_title：American journal of respiratory and critical care medicine

authors： Atochina EN,Muzykantov VR,Al-Mehdi AB,Danilov SM,Fisher AB

更新日期：1997-10-01 00:00:00

abstract：RATIONALE:Intensive care unit (ICU) nurses work in a demanding environment where they are repetitively exposed to traumatic situations and stressful events. The psychological effects on nurses as a result of working in the ICU are relatively unknown. OBJECTIVE:To determine whether there is an increased prevalence of p...

journal_title：American journal of respiratory and critical care medicine

authors： Mealer ML,Shelton A,Berg B,Rothbaum B,Moss M

更新日期：2007-04-01 00:00:00

abstract：:Exhaled nitric oxide (eNO) is elevated in patients with inflammatory pulmonary diseases and it has attracted increasing interest as a simple, noninvasive marker of airway inflammation. Little is known, however, about factors that might affect eNO in healthy subjects. We measured eNO in 157 healthy 7- to 13-yr-old chil...

journal_title：American journal of respiratory and critical care medicine

authors： Franklin PJ,Taplin R,Stick SM

更新日期：1999-01-01 00:00:00

abstract：:Reduced bronchodilatation in response to deep inspiration (DI) has been demonstrated in asthmatics. We have previously shown that inhibition of DI for 10 min or more during methacholine inhalation increases airway narrowing in normals. We tested the hypothesis that inhibition of DIs during methacholine inhalation in a...

journal_title：American journal of respiratory and critical care medicine

authors： King GG,Moore BJ,Seow CY,Paré PD

更新日期：2001-07-15 00:00:00

abstract：:We prospectively investigated the mechanism of airflow limitation before and after targeted emphysematous resection in 12 consecutively studied adult patients 68 +/- 4 yr of age (mean +/- SD) with very severe COPD undergoing bilateral thoracoscopic stapling techniques. Lung function, static lung elastic recoil, and ai...

journal_title：American journal of respiratory and critical care medicine

authors： Gelb AF,Zamel N,McKenna RJ Jr,Brenner M

更新日期：1996-10-01 00:00:00

abstract：:Products of the prostaglandin H synthase (PGHS) metabolic pathway are thought to play a role in the pathogenesis of asthma. We determined the level of expression of the constitutive (PGHS-1) and inducible (PGHS-2) isoforms of the enzyme in induced sputum and bronchial biopsies of patients with asthma, patients with ch...

journal_title：American journal of respiratory and critical care medicine

authors： Taha R,Olivenstein R,Utsumi T,Ernst P,Barnes PJ,Rodger IW,Giaid A

更新日期：2000-02-01 00:00:00

abstract：:Although there is abundant clinical evidence of asthmatic responses to indoor aeroallergens, the symptomatic impacts of other common indoor air pollutants from gas stoves, fireplaces, and environmental tobacco smoke have been less well characterized. These combustion sources produce a complex mixture of pollutants, ma...

journal_title：American journal of respiratory and critical care medicine

authors： Ostro BD,Lipsett MJ,Mann JK,Wiener MB,Selner J

更新日期：1994-06-01 00:00:00

abstract：:We tested the hypothesis that in advanced pulmonary fibrosis, edema is redistributed away from the relatively noncompliant interstitium and predominantly floods alveoli. Severe left lung fibrosis was produced in six dogs with radiation and intratracheal bleomycin and, 24 mo later, hydrostatic edema was induced by infu...

journal_title：American journal of respiratory and critical care medicine

authors： Zwikler MP,Iancu D,Michel RP

更新日期：1994-05-01 00:00:00