Airway smooth muscle hypertrophy and hyperplasia in asthma.

abstract：RATIONALE:Acute lung injury (ALI) that develops 6 hours after transfusion (TRALI) is the leading cause of transfusion-related mortality. Several transfusion characteristics have been postulated as risk factors for TRALI, but the evidence is limited to retrospective studies. OBJECTIVES:To compare patient and transfusio...

journal_title：American journal of respiratory and critical care medicine

authors： Gajic O,Rana R,Winters JL,Yilmaz M,Mendez JL,Rickman OB,O'Byrne MM,Evenson LK,Malinchoc M,DeGoey SR,Afessa B,Hubmayr RD,Moore SB

更新日期：2007-11-01 00:00:00

abstract：:Partial liquid ventilation (PLV) has been shown to be an effective means of improving oxygenation in the injured lung. However, little is known about how approach to ventilation during PLV affects gas exchange and pulmonary mechanics. We hypothesized that gas exchange and pulmonary mechanics would be best with positiv...

journal_title：American journal of respiratory and critical care medicine

authors： Fujino Y,Kirmse M,Hess D,Kacmarek RM

更新日期：1999-04-01 00:00:00

abstract：RATIONALE:Nasal polyps (NPs) are characterized by intense edema or formation of pseudocysts filled with plasma proteins, mainly albumin. However, the mechanisms underlying NP retention of plasma proteins in their submucosa remain unclear. OBJECTIVES:We hypothesized that formation of a fibrin mesh retains plasma protei...

journal_title：American journal of respiratory and critical care medicine

authors： Takabayashi T,Kato A,Peters AT,Hulse KE,Suh LA,Carter R,Norton J,Grammer LC,Cho SH,Tan BK,Chandra RK,Conley DB,Kern RC,Fujieda S,Schleimer RP

更新日期：2013-01-01 00:00:00

abstract：RATIONALE:Tidal volume and plateau pressure limitation decreases mortality in acute respiratory distress syndrome. Computed tomography demonstrated a small, normally aerated compartment on the top of poorly aerated and nonaerated compartments that may be hyperinflated by tidal inflation. OBJECTIVES:We hypothesized tha...

journal_title：American journal of respiratory and critical care medicine

authors： Terragni PP,Rosboch G,Tealdi A,Corno E,Menaldo E,Davini O,Gandini G,Herrmann P,Mascia L,Quintel M,Slutsky AS,Gattinoni L,Ranieri VM

更新日期：2007-01-15 00:00:00

abstract：RATIONALE:From the late 1970s to the early 1990s, studies found that mortality rates for pulmonary fibrosis were increasing. Recent data for mortality from pulmonary fibrosis are unavailable. OBJECTIVES:We sought to determine mortality rates for pulmonary fibrosis in the United States from 1992 through 2003. METHODS:...

journal_title：American journal of respiratory and critical care medicine

authors： Olson AL,Swigris JJ,Lezotte DC,Norris JM,Wilson CG,Brown KK

更新日期：2007-08-01 00:00:00

abstract：RATIONALE:Inhaled corticosteroids are commonly prescribed to patients with chronic obstructive pulmonary disease (COPD). OBJECTIVES:To examine whether these medications might be associated with an excess risk of pneumonia. METHODS:We conducted a nested case-control study within a cohort of patients with COPD from Que...

journal_title：American journal of respiratory and critical care medicine

authors： Ernst P,Gonzalez AV,Brassard P,Suissa S

更新日期：2007-07-15 00:00:00

abstract：:Several studies have found that sleep deprivation reduces the hypercapnic ventilatory response (HCVR). Such results may have been affected by uncontrolled activities or environmental influences during the sleep deprivation period. The current study determined the "pure" effect of sleep deprivation on respiratory contr...

journal_title：American journal of respiratory and critical care medicine

authors： Spengler CM,Shea SA

更新日期：2000-04-01 00:00:00

abstract：:Segmental bronchoprovocation (SBP) with allergen was used in an attempt to study eosinophils recruited to the airway 24 h after challenge. Unexpectedly, in the first four patients, neutrophils (rather than eosinophils) were recruited in the bronchoalveolar lavage (BAL) fluids, and we hypothesized that the allergen ext...

journal_title：American journal of respiratory and critical care medicine

authors： Hunt LW,Gleich GJ,Ohnishi T,Weiler DA,Mansfield ES,Kita H,Sur S

更新日期：1994-06-01 00:00:00

abstract：RATIONALE:The inadequacy of effector T-cell response in containment of tubercle bacilli is believed to result in the development of disseminated forms of tuberculosis (TB), such as miliary tuberculosis (MTB). Regulatory T cells (Treg) plausibly play a critical role in the immunopathogenesis of disseminated TB by suppre...

journal_title：American journal of respiratory and critical care medicine

authors： Sharma PK,Saha PK,Singh A,Sharma SK,Ghosh B,Mitra DK

更新日期：2009-06-01 00:00:00

abstract：:Bronchial hyperresponsiveness (BHR), the increased sensitivity to a wide variety of stimuli that narrow the airways, is a central abnormality in patients with asthma, and is frequently observed in patients with chronic obstructive pulmonary disease. In the study of the underlying mechanisms of BHR, various animal mode...

journal_title：American journal of respiratory and critical care medicine

authors： Rabe KF

更新日期：1998-11-01 00:00:00

abstract：:When dyspnea must be assessed clinically, there are three methods of assessment: the measurement of dyspnea with activities of daily living using clinical dyspnea ratings such as the modified Medical Research Council (MRC), the Baseline Dyspnea Index (BDI), and the Oxygen Cost Diagram (OCD); the measurement of dyspnea...

journal_title：American journal of respiratory and critical care medicine

authors： Hajiro T,Nishimura K,Tsukino M,Ikeda A,Koyama H,Izumi T

更新日期：1998-10-01 00:00:00

abstract：RATIONALE:Congenital central hypoventilation syndrome (CCHS), a unique disorder of respiratory control associated with Hirschsprung disease (HSCR) and tumors of neural crest origin, results from polyalanine repeat expansion mutations in the paired-like homeobox (PHOX)2B gene in more than 90% of cases, and alternative P...

journal_title：American journal of respiratory and critical care medicine

authors： Berry-Kravis EM,Zhou L,Rand CM,Weese-Mayer DE

更新日期：2006-11-15 00:00:00

abstract：:We enrolled nine allergic subjects in a double blind, placebo-controlled study to examine the effect of premedication with 0.6 mg of atropine on nasal antigen challenge. The challenge consisted of unilaterally stimulating the nasal septum with diluent followed by three increasing doses of antigen and recording respons...

journal_title：American journal of respiratory and critical care medicine

authors： Baroody FM,Ford S,Lichtenstein LM,Kagey-Sobotka A,Naclerio RM

更新日期：1994-06-01 00:00:00

abstract：:Inflammation is a critical component of asthma. Drugs that control asthma generally reduce the degree of airway inflammation. There is theoretical controversy surrounding the effects of beta(2)-agonists on airway inflammation, with some studies suggesting an anti-inflammatory effect, and others predicting a proinflamm...

journal_title：American journal of respiratory and critical care medicine

authors： Calhoun WJ,Hinton KL,Kratzenberg JJ

更新日期：2001-03-01 00:00:00

abstract：:To determine the status of activation of lymphocytes and the role of cytokines on the inflammatory response of the bronchial mucosa in toluene diisocyanate (TDI) asthma, we performed a quantitative analysis of bronchial biopsies obtained from 15 subjects with TDI-induced asthma and seven normal control subjects. Marke...

journal_title：American journal of respiratory and critical care medicine

authors： Maestrelli P,di Stefano A,Occari P,Turato G,Milani G,Pivirotto F,Mapp CE,Fabbri LM,Saetta M

更新日期：1995-03-01 00:00:00

abstract：BACKGROUND:The clinical utility of bronchoalveolar lavage fluid (BAL) cell analysis for the diagnosis and management of patients with interstitial lung disease (ILD) has been a subject of debate and controversy. The American Thoracic Society (ATS) sponsored a committee of international experts to examine all relevant l...

journal_title：American journal of respiratory and critical care medicine

authors： Meyer KC,Raghu G,Baughman RP,Brown KK,Costabel U,du Bois RM,Drent M,Haslam PL,Kim DS,Nagai S,Rottoli P,Saltini C,Selman M,Strange C,Wood B,American Thoracic Society Committee on BAL in Interstitial Lung Disease.

更新日期：2012-05-01 00:00:00

abstract：RATIONALE:T-bet (TBX21 or T-box 21) is a critical regulator of T-helper 1 lineage commitment and IFN-gamma production. Knockout mice lacking T-bet develop airway hyperresponsiveness (AHR) to methacholine, peribronchial eosinophilic and lymphocytic inflammation, and increased type III collagen deposition below the bronc...

journal_title：American journal of respiratory and critical care medicine

authors： Raby BA,Hwang ES,Van Steen K,Tantisira K,Peng S,Litonjua A,Lazarus R,Giallourakis C,Rioux JD,Sparrow D,Silverman EK,Glimcher LH,Weiss ST

更新日期：2006-01-01 00:00:00

abstract：:During dynamic hyperinflation, the ventilatory pump is facing increased demand because it must overcome the intrinsic positive end-expiratory pressure (PEEPi) and decreased capacity since it must operate at a dynamically increased end-expiratory lung volume (EELV). The aim of this study was to evaluate the relative pr...

journal_title：American journal of respiratory and critical care medicine

authors： Yan S,Kayser B

更新日期：1997-08-01 00:00:00

abstract：:There have been four types of drug treatment of asthma that have been used over the past 100 years. Belladonna alkaloids, derived from the thorn-apple plant were used in 1905, and chemically synthesized entities in this class are still in use today. Western medicine began to use adrenergic stimulants approximately 100...

journal_title：American journal of respiratory and critical care medicine

authors： Chu EK,Drazen JM

更新日期：2005-06-01 00:00:00

abstract：:Although numerous reports have described the improvement in PAO2 in patients in the prone position, the underlying mechanism has yet to be determined. Some authors have suggested this phenomenon may be related to an increase in functional residual capacity (FRC); however, no previous studies have described positional ...

journal_title：American journal of respiratory and critical care medicine

authors： Numa AH,Hammer J,Newth CJ

更新日期：1997-10-01 00:00:00

abstract：:Little is known about the anti-asthmatic effects of powerful anti-inflammatory agents such as aspirin-like drugs. We compared the effects of two aspirin-like drugs with different pharmacologic activities, sodium salicylate (SSA) and indomethacin, with the effect of lysine acetylsalicylate (LASA), inhaled 30 min before...

journal_title：American journal of respiratory and critical care medicine

authors： Sestini P,Refini RM,Pieroni MG,Vaghi A,Robuschi M,Bianco S

更新日期：1999-04-01 00:00:00

abstract：:Previous studies reported linkage between maternally inherited atopy and the beta subunit of the high affinity IgE receptor (Fc epsilon RI-beta) located on chromosome 11q13. We have investigated 45 Italian families with atopic asthmatic children, for a total of 213 subjects, including 148 patients. Genotyping was carr...

journal_title：American journal of respiratory and critical care medicine

authors： Martinati LC,Trabetti E,Casartelli A,Boner AL,Pignatti PF

更新日期：1996-05-01 00:00:00

abstract：:The aim of this study was to evaluate the effect of two body positions (supine and semirecumbency) on the dynamics of gastroesophageal reflux (GER) in 15 patients requiring mechanical ventilation and having a nasogastric tube in place. Samples of gastric contents, pharyngeal and bronchial secretions, and blood were ob...

journal_title：American journal of respiratory and critical care medicine

authors： Orozco-Levi M,Torres A,Ferrer M,Piera C,el-Ebiary M,de la Bellacasa JP,Rodriguez-Roisin R

更新日期：1995-10-01 00:00:00

abstract：:Great emphasis is placed on educating asthmatics to use action plans to achieve better control of symptoms. The use of peak flow meters (PFM) has been recommended as an important part of self-management plans. We studied 92 (47 F) adult patients with asthma in a primary care setting to compare the effectiveness of act...

journal_title：American journal of respiratory and critical care medicine

authors： Turner MO,Taylor D,Bennett R,Fitzgerald JM

更新日期：1998-02-01 00:00:00

abstract：:Two distinct types of tumor necrosis factor receptors (TNF-R) have been identified (TNF-R55 and TNF-R75). Both TNF-R also exist in soluble forms (TNF-sR), resulting from the release of the extracellular domains (TNF-sR55 and TNF-sR75). TNF-sR may play an important role in vivo as they can bind to TNF alpha and prevent...

journal_title：American journal of respiratory and critical care medicine

authors： Humbert M,Roux-Lombard P,Cerrina J,Magnan A,Simonneau G,Dartevelle P,Galanaud P,Dayer JM,Emilie D

更新日期：1994-06-01 00:00:00

abstract：:Effects of nitric oxide (NO) and aerosolized terbutaline inhalation on ventilation-perfusion (VA/Q) distributions were determined during methacholine-induced bronchoconstriction in nine mechanically ventilated pigs. Animals inhaled, in random order, zero, 20, and 80 parts per million (ppm) of NO or aerosolized terbuta...

journal_title：American journal of respiratory and critical care medicine

authors： Putensen C,Räsänen J,López FA

更新日期：1995-01-01 00:00:00

abstract：:The aim of the study was to determine risk factors for severe community-acquired pneumonia (CAP) as well as to compare microbial patterns of severe CAP to a previous study from our respiratory intensive care unit (ICU) originating from 1984 to 1987. Patients admitted to the ICU according to clinical judgment were defi...

journal_title：American journal of respiratory and critical care medicine

authors： Ruiz M,Ewig S,Torres A,Arancibia F,Marco F,Mensa J,Sanchez M,Martinez JA

更新日期：1999-09-01 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：:Rationale: Chronic obstructive pulmonary disease (COPD) has been associated with numerous genetic variants, yet the extent to which its genetic risk is mediated by variation in lung structure remains unknown.Objectives: To characterize associations between a genetic risk score (GRS) associated with COPD susceptibility...

journal_title：American journal of respiratory and critical care medicine

authors： Oelsner EC,Ortega VE,Smith BM,Nguyen JN,Manichaikul AW,Hoffman EA,Guo X,Taylor KD,Woodruff PG,Couper DJ,Hansel NN,Martinez FJ,Paine R 3rd,Han MK,Cooper C,Dransfield MT,Criner G,Krishnan JA,Bowler R,Bleecker ER,Pet

更新日期：2019-09-15 00:00:00

abstract：RATIONALE:Although research supports a sleep-disordered breathing and atrial fibrillation association, prospective data examining sleep-disordered breathing predicting incident atrial fibrillation are lacking. OBJECTIVES:To investigate sleep-disordered breathing indices as predictors of incident atrial fibrillation. ...

journal_title：American journal of respiratory and critical care medicine

authors： May AM,Blackwell T,Stone PH,Stone KL,Cawthon PM,Sauer WH,Varosy PD,Redline S,Mehra R,MrOS Sleep (Outcomes of Sleep Disorders in Older Men) Study Group.

更新日期：2016-04-01 00:00:00