Surfactant dysfunction makes lungs vulnerable to repetitive collapse and reexpansion.

abstract：:The pathophysiology of impaired exercise tolerance in patients with cystic fibrosis (CF) is not completely understood. The objective of this study was to compare exercise ability (at clinical and cellular levels) and resting energy expenditure in female athletes with CF compared with matched control subjects. Sixteen ...

journal_title：American journal of respiratory and critical care medicine

authors： Selvadurai HC,Allen J,Sachinwalla T,Macauley J,Blimkie CJ,Van Asperen PP

更新日期：2003-12-15 00:00:00

abstract：:The stimuli controlling pharyngeal dilator muscles are poorly defined. Local mechanoreceptors are a leading possibility. To address this, we assessed the relationship between two dilator muscle electromyograms (EMGs, i.e., genioglossus [GG-an inspiratory phasic muscle], tensor palatini [TP-a tonically active muscle]) ...

journal_title：American journal of respiratory and critical care medicine

authors： Malhotra A,Pillar G,Fogel RB,Beauregard J,Edwards JK,Slamowitz DI,Shea SA,White DP

更新日期：2000-09-01 00:00:00

abstract：:This study aimed to examine the performance characteristics of four high-frequency oscillatory-type ventilators, using an in vitro model of the intubated neonatal respiratory system. Each ventilator was examined across its operative range of settings and at varying model lung compliance (C) and resistance. The oscilla...

journal_title：American journal of respiratory and critical care medicine

authors： Pillow JJ,Wilkinson MH,Neil HL,Ramsden CA

更新日期：2001-09-15 00:00:00

abstract：RATIONALE:The impact of asthma on chronic lung function deficits is well known. However, there has been little study of ethnic differences in these asthma-associated deficits. OBJECTIVES:To examine whether there are ethnic differences in the effects of asthma on children's lung function. METHODS:We evaluated the impa...

journal_title：American journal of respiratory and critical care medicine

authors： Zhang Y,McConnell R,Gilliland F,Berhane K

更新日期：2011-03-01 00:00:00

abstract：:Platelets are an important, albeit generally underappreciated, component of the inflammatory cascade. Platelets are known to contribute to inflammation in atherosclerosis, stroke, and asthma. They produce a large number of proinflammatory lipid mediators and cytokines, and play a vital role in recruitment of leukocyte...

journal_title：American journal of respiratory and critical care medicine

authors： O'Sullivan BP,Michelson AD

更新日期：2006-03-01 00:00:00

abstract：RATIONALE:Lung transplant recipients are particularly at risk of complications from rhinovirus, the most frequent respiratory virus circulating in the community. OBJECTIVES:To determine whether lung transplant recipients can be chronically infected by rhinovirus and the potential clinical impact. METHODS:We first ide...

journal_title：American journal of respiratory and critical care medicine

authors： Kaiser L,Aubert JD,Pache JC,Deffernez C,Rochat T,Garbino J,Wunderli W,Meylan P,Yerly S,Perrin L,Letovanec I,Nicod L,Tapparel C,Soccal PM

更新日期：2006-12-15 00:00:00

abstract：:If lipid peroxidation (LP) contributes to organ dysfunction in sepsis rather than simply reflecting established injury, it should occur soon after the onset of the septic insult, and it may not progress uniformly in all organs. We assessed whether LP occurs within 90 min after onset of continuous intravenous endotoxin...

journal_title：American journal of respiratory and critical care medicine

authors： Clements NC Jr,Habib MP

更新日期：1995-03-01 00:00:00

abstract：RATIONALE:The effect of indoor air pollutants on respiratory morbidity among patients with chronic obstructive pulmonary disease (COPD) in developed countries is uncertain. OBJECTIVES:The first longitudinal study to investigate the independent effects of indoor particulate matter (PM) and nitrogen dioxide (NO(2)) conc...

journal_title：American journal of respiratory and critical care medicine

authors： Hansel NN,McCormack MC,Belli AJ,Matsui EC,Peng RD,Aloe C,Paulin L,Williams DL,Diette GB,Breysse PN

更新日期：2013-05-15 00:00:00

abstract：:Although airway inflammation is recognized as a key feature of asthma, the characteristics of airway inflammation in children with acute severe asthma are not well defined. The aim of this study was to describe the characteristics of airway inflammation in children with an acute exacerbation of asthma using sputum cel...

journal_title：American journal of respiratory and critical care medicine

authors： Norzila MZ,Fakes K,Henry RL,Simpson J,Gibson PG

更新日期：2000-03-01 00:00:00

abstract：RATIONALE:Obstructive sleep apnea (OSA) is hypothesized to be influenced by genes within pathways involved with obesity, craniofacial development, inflammation, and ventilatory control. OBJECTIVES:We conducted the first candidate gene study of OSA using family data from European Americans and African Americans, select...

journal_title：American journal of respiratory and critical care medicine

authors： Larkin EK,Patel SR,Goodloe RJ,Li Y,Zhu X,Gray-McGuire C,Adams MD,Redline S

更新日期：2010-10-01 00:00:00

abstract：:The aim of this prospective study was to detect subjects in the general population with objective signs of chronic obstructive pulmonary disease (COPD) or asthma at an early stage. This was done by means of a two-stage protocol involving screening and a subsequent 2-yr monitoring of all subjects with positive results ...

journal_title：American journal of respiratory and critical care medicine

authors： van den Boom G,van Schayck CP,van Möllen MP,Tirimanna PR,den Otter JJ,van Grunsven PM,Buitendijk MJ,van Herwaarden CL,van Weel C

更新日期：1998-12-01 00:00:00

abstract：:The recruitment of leukocytes to an area of injury or inflammation site is one of the most fundamental host defenses. Pulmonary tuberculosis is characterized by granulomatous inflammation with an extensive infiltration of mononuclear cells. In tuberculous pleurisy pleural mesothelial cells are exposed to mycobacteria ...

journal_title：American journal of respiratory and critical care medicine

authors： Mohammed KA,Nasreen N,Ward MJ,Antony VB

更新日期：1999-05-01 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:Chronic exposure to indoor nitrogen dioxide (NO2) is a public health concern. Over half of U.S. households have a source of NO2, and experimental data suggest potential for adverse respiratory effects. OBJECTIVE:To examine associations of indoor NO2 exposure with respiratory symptoms among children with asth...

journal_title：American journal of respiratory and critical care medicine

authors： Belanger K,Gent JF,Triche EW,Bracken MB,Leaderer BP

更新日期：2006-02-01 00:00:00

abstract：:The role of nutritional status in the prognosis of subjects with severe chronic obstructive pulmonary disease was studied in a cohort of Canadian men and women followed for 3 to 5 yr. A total of 348 subjects who were recruited for a study of negative pressure ventilation were evaluated for lung function and body weigh...

journal_title：American journal of respiratory and critical care medicine

authors： Gray-Donald K,Gibbons L,Shapiro SH,Macklem PT,Martin JG

更新日期：1996-03-01 00:00:00

abstract：:Genes for the chemokine receptors CCR5 and CCR2 are characterized by polymorphisms resulting in a nonfunctional receptor expression. Ligands for CCR2 and CCR5 (chemokines monocyte chemotactic protein-1 [MCP-1] and RANTES) are implicated in the pathogenesis of sarcoidosis. We have, therefore, analyzed polymorphisms of ...

journal_title：American journal of respiratory and critical care medicine

authors： Petrek M,Drábek J,Kolek V,Zlámal J,Welsh KI,Bunce M,Weigl E,Du Bois R

更新日期：2000-09-01 00:00:00

abstract：:Several modalities of ventilatory support have been proposed to gradually withdraw patients from mechanical ventilation, but their respective effects on the outcome of weaning from mechanical ventilation are not known. We conducted a randomized trial in three intensive care units in mechanically ventilated patients wh...

journal_title：American journal of respiratory and critical care medicine

authors： Brochard L,Rauss A,Benito S,Conti G,Mancebo J,Rekik N,Gasparetto A,Lemaire F

更新日期：1994-10-01 00:00:00

abstract：:Morphologic changes in pulmonary muscular arteries may modify the mechanisms that regulate the pulmonary vascular tone and contribute to maintaining an adequate ventilation-perfusion (VA/Q) matching in patients with chronic obstructive pulmonary disease (COPD). To analyze the relationships between the abnormalities of...

journal_title：American journal of respiratory and critical care medicine

authors： Barberà JA,Riverola A,Roca J,Ramirez J,Wagner PD,Ros D,Wiggs BR,Rodriguez-Roisin R

更新日期：1994-02-01 00:00:00

abstract：:The mechanism responsible for the increased air-space permeability in cigarette smokers is unknown. The aim of this study was to assess the acute and chronic effects of cigarette smoking on epithelial permeability, inflammation, and oxidant stress in the air spaces of smokers. Fourteen cigarette smokers underwent 99mT...

journal_title：American journal of respiratory and critical care medicine

authors： Morrison D,Rahman I,Lannan S,MacNee W

更新日期：1999-02-01 00:00:00

abstract：:Based on serial lung function measurements performed in 142 children (68 males; 74 females) with cystic fibrosis (CF), prospectively evaluated over an age range of 6 to 20 years, we attempted to determine whether the lung clearance index (LCI) as a measure of ventilation inhomogeneities could be a discriminating facto...

journal_title：American journal of respiratory and critical care medicine

authors： Kraemer R,Blum A,Schibler A,Ammann RA,Gallati S

更新日期：2005-02-15 00:00:00

abstract：:We prospectively analyzed the diagnostic yield and safety of ultrasound (US)-guided transthoracic needle aspiration biopsy in the histologic diagnosis of 40 patients with superior vena cava (SVC) syndrome. During a 4-yr period, 40 patients with SVC obstruction were admitted to National Taiwan University Hospital. Of t...

journal_title：American journal of respiratory and critical care medicine

authors： Ko JC,Yang PC,Yuan A,Chang DB,Yu CJ,Wu HD,Lee LN,Kuo SH,Luh KT

更新日期：1994-03-01 00:00:00

abstract：:Theophylline is well-established in the management of asthma, and there is some evidence of an antiinflammatory effect in asthma. It is not known whether theophylline affects inflammatory markers such as sputum eosinophils and exhaled nitric oxide (NO) in patients with mild asthma not receiving inhaled steroid therapy...

journal_title：American journal of respiratory and critical care medicine

authors： Lim S,Tomita K,Caramori G,Jatakanon A,Oliver B,Keller A,Adcock I,Chung KF,Barnes PJ

更新日期：2001-07-15 00:00:00

abstract：:Transforming growth factor-beta1 (TGF-beta1) is a growth factor that is implicated in fibrosis of many organs. The purpose of this study was to determine the sequential levels of TGF-beta1 in the pleural fluid of rabbits that had undergone empyema induction, as fibrosis of the pleural space develops. Thirty-seven rabb...

journal_title：American journal of respiratory and critical care medicine

authors： Sasse SA,Jadus MR,Kukes GD

更新日期：2003-09-15 00:00:00

abstract：:Rationale: Limited information is available on racial/ethnic differences in pulmonary arterial hypertension (PAH).Objectives: Determine effects of race/ethnicity and ancestry on mortality and disease outcomes in diverse patients with PAH.Methods: Patients with Group 1 PAH were included from two national registries wit...

journal_title：American journal of respiratory and critical care medicine

authors： Karnes JH,Wiener HW,Schwantes-An TH,Natarajan B,Sweatt AJ,Chaturvedi A,Arora A,Batai K,Nair V,Steiner HE,Giles JB,Yu J,Hosseini M,Pauciulo MW,Lutz KA,Coleman AW,Feldman J,Vanderpool R,Tang H,Garcia JGN,Yuan JX,K

更新日期：2020-06-01 00:00:00

abstract：RATIONALE:Exploring prenatal factors influencing childhood wheeze may inform programming mechanisms. OBJECTIVES:We examined associations among prenatal maternal cortisol profiles, maternal obesity, and repeated wheeze up to age 2 years (n = 261). METHODS:Salivary cortisol was collected five times per day over 3 days ...

journal_title：American journal of respiratory and critical care medicine

authors： Wright RJ,Fisher K,Chiu YH,Wright RO,Fein R,Cohen S,Coull BA

更新日期：2013-06-01 00:00:00

abstract：:Airway smooth muscle (ASM) accumulation and enrichment of the extracellular matrix (ECM) with type I collagen and fibronectin are major pathologic features of airway remodeling in asthma. These ECM components confer enhanced ASM proliferation in vitro, but a requirement for specific integrin ECM receptors has not been...

journal_title：American journal of respiratory and critical care medicine

authors： Nguyen TT,Ward JP,Hirst SJ

更新日期：2005-02-01 00:00:00

abstract：:To test whether the leukotriene antagonist ONO-1078 (pranlukast) prevents asthma exacerbations during reduction of high-dose inhaled corticosteroid, we conducted a randomized, double-blind, placebo-controlled study in 79 asthma patients requiring high doses (1,500 microg/d or more) of inhaled beclomethasone dipropiona...

journal_title：American journal of respiratory and critical care medicine

authors： Tamaoki J,Kondo M,Sakai N,Nakata J,Takemura H,Nagai A,Takizawa T,Konno K

更新日期：1997-04-01 00:00:00

abstract：RATIONALE:Airways obstruction with thick, adherent mucus is a pathophysiologic and clinical feature of muco-obstructive respiratory diseases, including chronic obstructive pulmonary disease, asthma, and cystic fibrosis (CF). Mucins, the dominant biopolymer in mucus, organize into complex polymeric networks via the form...

journal_title：American journal of respiratory and critical care medicine

authors： Ehre C,Rushton ZL,Wang B,Hothem LN,Morrison CB,Fontana NC,Markovetz MR,Delion MF,Kato T,Villalon D,Thelin WR,Esther CR Jr,Hill DB,Grubb BR,Livraghi-Butrico A,Donaldson SH,Boucher RC

更新日期：2019-01-15 00:00:00

abstract：:Rationale: The management of indeterminate pulmonary nodules (IPNs) remains challenging, resulting in invasive procedures and delays in diagnosis and treatment. Strategies to decrease the rate of unnecessary invasive procedures and optimize surveillance regimens are needed.Objectives: To develop and validate a deep le...

journal_title：American journal of respiratory and critical care medicine

authors： Massion PP,Antic S,Ather S,Arteta C,Brabec J,Chen H,Declerck J,Dufek D,Hickes W,Kadir T,Kunst J,Landman BA,Munden RF,Novotny P,Peschl H,Pickup LC,Santos C,Smith GT,Talwar A,Gleeson F

更新日期：2020-07-15 00:00:00

abstract：RATIONALE:Childhood sleep-disordered breathing ranges in severity from primary snoring to obstructive sleep apnea and is associated with behavioral and neurocognitive deficits. It remains unknown why children with primary snoring, who do not experience peripheral oxygen desaturation or sleep fragmentation, experience s...

journal_title：American journal of respiratory and critical care medicine

authors： Tamanyan K,Walter LM,Weichard A,Davey MJ,Nixon GM,Biggs SN,Horne RSC

更新日期：2018-06-01 00:00:00