Mechanisms of airway narrowing and hyperresponsiveness in viral respiratory tract infections.

abstract：RATIONALE:17β-Estradiol (E2) attenuates hypoxic pulmonary vasoconstriction and hypoxic pulmonary hypertension (HPH) through an unknown mechanism that may involve estrogen receptors (ER) or E2 conversion to catecholestradiols and methoxyestradiols with previously unrecognized effects on cardiopulmonary vascular remodeli...

journal_title：American journal of respiratory and critical care medicine

authors： Lahm T,Albrecht M,Fisher AJ,Selej M,Patel NG,Brown JA,Justice MJ,Brown MB,Van Demark M,Trulock KM,Dieudonne D,Reddy JG,Presson RG,Petrache I

更新日期：2012-05-01 00:00:00

abstract：RATIONALE:Noncommunicable diseases are major causes of morbidity and mortality in sub-Saharan Africa (sSA). Valid burden of disease estimates are lacking for noncommunicable lung disease in sSA. OBJECTIVES:We performed a community-based survey to determine the prevalence of chronic lung disease among adults 18 years o...

journal_title：American journal of respiratory and critical care medicine

authors： Meghji J,Nadeau G,Davis KJ,Wang D,Nyirenda MJ,Gordon SB,Mortimer K

更新日期：2016-07-01 00:00:00

abstract：:Airway inflammation is involved in the pathogenesis of bronchial asthma. Intercellular adhesion molecule-1 (ICAM-1) is a ligand for lymphocyte function-associated antigen-1 alpha (LFA-1 alpha) and has been shown to be required for leukocyte migration into inflamed area. The purpose of this report was to investigate th...

journal_title：American journal of respiratory and critical care medicine

authors： Nagase T,Fukuchi Y,Matsuse T,Sudo E,Matsui H,Orimo H

更新日期：1995-04-01 00:00:00

abstract：RATIONALE:Brief recurrent apneas in preterm infants and adults can precipitate rapid and severe arterial O(2) desaturation for reasons that remain unclear. OBJECTIVES:We tested a mathematically derived hypothesis that when breathing terminates apnea, mixed-venous hypoxemia continues into the subsequent apnea; as a res...

journal_title：American journal of respiratory and critical care medicine

authors： Sands SA,Edwards BA,Kelly VJ,Skuza EM,Davidson MR,Wilkinson MH,Berger PJ

更新日期：2010-10-01 00:00:00

abstract：RATIONALE:Oxygen is commonly administered after extubation. Although several devices are available, data about their clinical efficacy are scarce. OBJECTIVES:To compare the effects of the Venturi mask and the nasal high-flow (NHF) therapy on PaO2/FiO2SET ratio after extubation. Secondary endpoints were to assess effec...

journal_title：American journal of respiratory and critical care medicine

authors： Maggiore SM,Idone FA,Vaschetto R,Festa R,Cataldo A,Antonicelli F,Montini L,De Gaetano A,Navalesi P,Antonelli M

更新日期：2014-08-01 00:00:00

abstract：:Previous study of adrenergic control of the tracheal vasculature in rats (1) demonstrated that beta-adrenergic blockade heightened arteriolar and large venular contractile responses to norepinephrine, a nonselective alpha-adrenergic agonist. The present study was undertaken to confirm the presence of functional beta-a...

journal_title：American journal of respiratory and critical care medicine

authors： Corboz MR,Ballard ST,Inglis SK,Taylor AE

更新日期：1996-03-01 00:00:00

abstract：:Patients with pulmonary Mycobacterium avium complex (MAC) infection occasionally have neither past histories of pulmonary diseases nor underlying immunodeficiency conditions. Therefore, we hypothesized that MAC may be linked with a disease-susceptibility gene and determined human leukocyte-associated antigens (HLA) in...

journal_title：American journal of respiratory and critical care medicine

authors： Takahashi M,Ishizaka A,Nakamura H,Kobayashi K,Nakamura M,Namiki M,Sekita T,Okajima S

更新日期：2000-07-01 00:00:00

abstract：:The development of sensitization to inhaled allergens is determined by the interaction of multiple genetic and environmental influences. Occupational sensitization to low-molecular-weight chemicals allows a specific immunological response to an inhaled hapten to be studied in a well-defined population with characteriz...

journal_title：American journal of respiratory and critical care medicine

authors： Newman Taylor AJ,Cullinan P,Lympany PA,Harris JM,Dowdeswell RJ,du Bois RM

更新日期：1999-08-01 00:00:00

abstract：:Heart failure is associated with Cheyne-Stokes breathing, which fragments patients' sleep. Correction of respiratory disturbance may reduce sleep fragmentation and excessive daytime sleepiness. This randomized prospective parallel trial assesses whether nocturnal-assist servoventilation improves daytime sleepiness com...

journal_title：American journal of respiratory and critical care medicine

authors： Pepperell JC,Maskell NA,Jones DR,Langford-Wiley BA,Crosthwaite N,Stradling JR,Davies RJ

更新日期：2003-11-01 00:00:00

abstract：:Phl p5 is a major allergen of timothy grass and causes rhinitis and bronchial asthma in nearly all patients allergic to grass pollen. The biochemical processing of this molecule by the nasal mucosa at its first encounter and possible changes of its biologic activity are unknown. Two isoforms of the allergen were expre...

journal_title：American journal of respiratory and critical care medicine

authors： Bufe A,Gehlhar K,Schramm G,Schlaak M,Becker WM

更新日期：1998-04-01 00:00:00

abstract：:Dysfunction of the muscles of ambulation contributes to exercise intolerance in chronic obstructive pulmonary disease (COPD). Men with COPD have high prevalence of low testosterone levels, which may contribute to muscle weakness. We determined effects of testosterone supplementation (100 mg of testosterone enanthate i...

journal_title：American journal of respiratory and critical care medicine

authors： Casaburi R,Bhasin S,Cosentino L,Porszasz J,Somfay A,Lewis MI,Fournier M,Storer TW

更新日期：2004-10-15 00:00:00

abstract：:Hydrogen peroxide (H2O2) is known to play an important role in airway homeostasis. For this reason its levels and thus its synthesis and consumption are important mechanisms for controlling airway functions. We have identified the major macromolecular consumer of H2O2 in sheep airway secretions to be lactoperoxidase (...

journal_title：American journal of respiratory and critical care medicine

authors： Conner GE,Salathe M,Forteza R

更新日期：2002-12-15 00:00:00

abstract：RATIONALE:There is a need to develop novel noninvasive imaging biomarkers that help to evaluate antiinflammatory asthma treatments. OBJECTIVES:To investigate whether the extent of the segmental lung edema measured noninvasively using turbo-inversion recovery-magnitude magnetic resonance imaging (TIRM MRI) corresponds ...

journal_title：American journal of respiratory and critical care medicine

authors： Vogel-Claussen J,Renne J,Hinrichs J,Schönfeld C,Gutberlet M,Schaumann F,Winkler C,Faulenbach C,Krug N,Wacker FK,Hohlfeld JM

更新日期：2014-03-15 00:00:00

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：OBJECTIVES:To assess the reliability and the minimal clinically important differences (MCID) for FVC% predicted in the Scleroderma Lung Study I and II. METHODS:Using data from SLS I and II (N=300), we evaluated the test-retest reliability for FVC% predicted (FVC%; screening vs. baseline) using intra-class correlation ...

journal_title：American journal of respiratory and critical care medicine

authors： Kafaja S,Clements PJ,Wilhalme H,Tseng CH,Furst DE,Kim GH,Goldin J,Volkmann ER,Roth MD,Tashkin DP,Khanna D

更新日期：2018-03-01 00:00:00

abstract：RATIONALE:Outcome measures that integrate mortality and morbidity, like quality-adjusted life years (QALYs), have been proposed for critical care clinical trials. OBJECTIVES:We sought to describe the distribution of QALYs in critically ill patients and estimate sample size requirements for a hypothetical trial using Q...

journal_title：American journal of respiratory and critical care medicine

authors： Ferguson ND,Scales DC,Pinto R,Wilcox ME,Cook DJ,Guyatt GH,Schünemann HJ,Marshall JC,Herridge MS,Meade MO,Canadian Critical Care Trials Group.

更新日期：2013-02-01 00:00:00

abstract：:To quantify changes in tissue oxygenation of pathologic lungs, we applied a novel method using near-infrared spectroscopy (NIRs). In in vitro experiments, we assayed the effect of photon scattering on the absorption spectra of an in vitro system simulating structures of lung, which consists of test tube containing air...

journal_title：American journal of respiratory and critical care medicine

authors： Noriyuki T,Ohdan H,Yoshioka S,Miyata Y,Asahara T,Dohi K

更新日期：1997-11-01 00:00:00

abstract：:We determined if pulmonary peptidoleukotrienes contribute to the pathogenesis of chronic lung disease of extreme prematurity (CLD) by measuring urinary leukotriene E4 (uLTE4). Study patients had a birth weight < 1000 g and were about 28 d old when they were classified as normal control subjects (n = 8) or as having CL...

journal_title：American journal of respiratory and critical care medicine

authors： Davidson D,Drafta D,Wilkens BA

更新日期：1995-03-01 00:00:00

abstract：RATIONALE:Levels of the soluble form of the receptor for advanced glycation end-products (sRAGE) are elevated during acute respiratory distress syndrome (ARDS) and correlate with severity and prognosis. Alveolar fluid clearance (AFC) is necessary for the resolution of lung edema but is impaired in most patients with AR...

journal_title：American journal of respiratory and critical care medicine

authors： Jabaudon M,Blondonnet R,Roszyk L,Bouvier D,Audard J,Clairefond G,Fournier M,Marceau G,Déchelotte P,Pereira B,Sapin V,Constantin JM

更新日期：2015-07-15 00:00:00

abstract：:We have recently demonstrated the development of systemic hypertension in a canine model of obstructive sleep apnea (OSA), but the underlying physiological mechanisms were not identified. Therefore, the purpose of this study was to examine the effect of OSA on arterial baroreceptor control of heart rate (HR) in this c...

journal_title：American journal of respiratory and critical care medicine

authors： Brooks D,Horner RL,Floras JS,Kozar LF,Render-Teixeira CL,Phillipson EA

更新日期：1999-04-01 00:00:00

abstract：RATIONALE:Donor mesenchymal stromal/stem cell (MSC) expansion and fibrotic differentiation is associated with development of bronchiolitis obliterans syndrome (BOS) in human lung allografts. However, the regulators of fibrotic differentiation of these resident mesenchymal cells are not well understood. OBJECTIVES:This...

journal_title：American journal of respiratory and critical care medicine

authors： Walker NM,Badri LN,Wadhwa A,Wettlaufer S,Peters-Golden M,Lama VN

更新日期：2012-01-01 00:00:00

abstract：:In 11 ventilator-dependent patients, we undertook a head-to-head comparison of patient-ventilator interaction during four ventilator modes: assist-control ventilation (ACV), intermittent mandatory ventilation (IMV), pressure support (PS), and a combination of IMV and PS. Progressive increases in IMV rate and PS level ...

journal_title：American journal of respiratory and critical care medicine

authors： Leung P,Jubran A,Tobin MJ

更新日期：1997-06-01 00:00:00

abstract：:This prospective community-based study of infants born in inner London was undertaken to examine the association between premorbid airway function and subsequent wheezing in the first year of life and to explore the influence on this association of a family history of asthma and maternal smoking during pregnancy. Heal...

journal_title：American journal of respiratory and critical care medicine

authors： Dezateux C,Stocks J,Dundas I,Fletcher ME

更新日期：1999-02-01 00:00:00

abstract：RATIONALE:Cystic fibrosis (CF) is characterized by dietary antioxidant deficiencies, which may contribute to an oxidant-antioxidant imbalance and oxidative stress. OBJECTIVES:Evaluate the effects of an oral antioxidant-enriched multivitamin supplement on antioxidant concentrations, markers of inflammation and oxidativ...

journal_title：American journal of respiratory and critical care medicine

authors： Sagel SD,Khan U,Jain R,Graff G,Daines CL,Dunitz JM,Borowitz D,Orenstein DM,Abdulhamid I,Noe J,Clancy JP,Slovis B,Rock MJ,McCoy KS,Strausbaugh S,Livingston FR,Papas KA,Shaffer ML

更新日期：2018-09-01 00:00:00

abstract：:To determine if gastric intramucosal pH changes during weaning from mechanical ventilation are related to gastric mucosal blood flow modifications, we studied 16 ventilator-supported patients with chronic obstructive pulmonary disease (COPD) who tolerated a 2-h trial of spontaneous breathing with pressure support vent...

journal_title：American journal of respiratory and critical care medicine

authors： Bocquillon N,Mathieu D,Neviere R,Lefebvre N,Marechal X,Wattel F

更新日期：1999-11-01 00:00:00

abstract：:Pneumonectomized rats develop pulmonary hypertension (PH) and pulmonary vascular neointimal formation 4 wk after monocrotaline (MCT) administration. Male Sprague-Dawley rats were injected with MCT (60 mg/kg) on Day 7 after left pneumonectomy. Three groups (n = 5) received 40-O-(2-hydroxyethyl)-rapamycin (RAD, 2.5 mg/k...

journal_title：American journal of respiratory and critical care medicine

authors： Nishimura T,Faul JL,Berry GJ,Veve I,Pearl RG,Kao PN

更新日期：2001-02-01 00:00:00

abstract：:Airway pathology has been extensively investigated in adulthood asthma, whereas only few studies examined bronchial biopsies in childhood asthma. To evaluate the airway pathology in children with asthma, we analyzed bronchial biopsies obtained from 23 children undergoing bronchoscopy for clinical indications other tha...

journal_title：American journal of respiratory and critical care medicine

authors： Barbato A,Turato G,Baraldo S,Bazzan E,Calabrese F,Tura M,Zuin R,Beghe B,Maestrelli P,Fabbri LM,Saetta M

更新日期：2003-10-01 00:00:00

abstract：:Rationale: Decisions in medicine are made on the basis of knowledge and reasoning, often in shared conversations with patients and families in consideration of clinical practice guideline recommendations, individual preferences, and individual goals. Observational studies can provide valuable knowledge to inform guide...

journal_title：American journal of respiratory and critical care medicine

authors： Gershon AS,Lindenauer PK,Wilson KC,Rose L,Walkey AJ,Sadatsafavi M,Anstrom KJ,Au DH,Bender BG,Brookhart MA,Dweik RA,Han MK,Joo MJ,Lavergne V,Mehta AB,Miravitlles M,Mularski RA,Roche N,Oren E,Riekert KA,Schoenberg N

更新日期：2021-01-01 00:00:00

abstract：RATIONALE:The airway surface liquid, the thin layer of liquid covering the airways, is essential for mucociliary clearance and as a barrier against microbial and other noxious agents. Proteins secreted into the airway surface liquid by epithelial and nonepithelial cells may be important in innate immunity and to improv...

journal_title：American journal of respiratory and critical care medicine

authors： Candiano G,Bruschi M,Pedemonte N,Caci E,Liberatori S,Bini L,Pellegrini C,Viganò M,O'Connor BJ,Lee TH,Galietta LJ,Zegarra-Moran O

更新日期：2005-11-01 00:00:00

abstract：:Small airway disease is thought to contribute significantly to functional impairment caused by asthma. Functional evidence of airway-parenchyma uncoupling in asthma, such as loss of deep breath bronchodilator effect in bronchoconstrictive episodes and enhanced airway closure, has been previously demonstrated. Elastic ...

journal_title：American journal of respiratory and critical care medicine

authors： Mauad T,Silva LF,Santos MA,Grinberg L,Bernardi FD,Martins MA,Saldiva PH,Dolhnikoff M

更新日期：2004-10-15 00:00:00