Mechanisms of apnea termination in obstructive sleep apnea. Role of chemoreceptor and mechanoreceptor stimuli.

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：RATIONALE:Infection with Pneumocystis, an opportunistic fungal pathogen, can result in fulminant pneumonia in the clinical setting of patients with immunosuppression. In murine models, Pneumocystis has previously been shown to induce a CD4+ T cell-dependent eosinophilic response in the lung capable of providing protect...

journal_title：American journal of respiratory and critical care medicine

authors： Eddens T,Campfield BT,Serody K,Manni ML,Horne W,Elsegeiny W,McHugh KJ,Pociask D,Chen K,Zheng M,Alcorn JF,Wenzel S,Kolls JK

更新日期：2016-10-01 00:00:00

abstract：UNLABELLED:Although local tissue activation of the endothelin (ET) system contributes to the development of pulmonary hypertension, the impact of isolated chronic plasma hyperendothelinemia on the pulmonary circulation is unknown. METHODS:Mini-osmotic pumps were implanted in rats to deliver ET-1 during 7 or 28 days. A...

journal_title：American journal of respiratory and critical care medicine

authors： Migneault A,Sauvageau S,Villeneuve L,Thorin E,Fournier A,Leblanc N,Dupuis J

更新日期：2005-03-01 00:00:00

abstract：RATIONALE:Respiratory syncytial virus (RSV) is the leading cause of childhood lower respiratory infection, yet viable therapies are lacking. Two major challenges have stalled antiviral development: ethical difficulties in performing pediatric proof-of-concept studies and the prevailing concept that the disease is immun...

journal_title：American journal of respiratory and critical care medicine

authors： DeVincenzo JP,Wilkinson T,Vaishnaw A,Cehelsky J,Meyers R,Nochur S,Harrison L,Meeking P,Mann A,Moane E,Oxford J,Pareek R,Moore R,Walsh E,Studholme R,Dorsett P,Alvarez R,Lambkin-Williams R

更新日期：2010-11-15 00:00:00

abstract：:In animal models of endotoxemia, sepsis is associated with the accumulation of leukocytes and altered microvascular perfusion. In order to test the hypothesis that bacterial sepsis upregulates leukocyte-endothelial adhesion, we used intravital microscopy to examine the flow behavior of leukocytes in the postcapillary ...

journal_title：American journal of respiratory and critical care medicine

authors： Piper RD,Pitt-Hyde ML,Anderson LA,Sibbald WJ,Potter RF

更新日期：1998-01-01 00:00:00

abstract：:The role of immunoglobulin E (IgE) in the development and course of impaired ventilatory function and chronic obstructive pulmonary disease (COPD) required further study. This role has been examined in the longitudinal Tucson Epidemiological Study of Airways Obstructive Disease, which started in 1972. The association ...

journal_title：American journal of respiratory and critical care medicine

authors： Sherrill DL,Lebowitz MD,Halonen M,Barbee RA,Burrows B

更新日期：1995-07-01 00:00:00

abstract：:A growing body of evidence suggests that neutrophil-derived proteinases play a major role in lung tissue damage in cystic fibrosis (CF). Most previous studies have focused on serine proteinases such as neutrophil elastase, providing no information on the extent to which metalloproteinases participate in proteolytic pr...

journal_title：American journal of respiratory and critical care medicine

authors： Delacourt C,Le Bourgeois M,D'Ortho MP,Doit C,Scheinmann P,Navarro J,Harf A,Hartmann DJ,Lafuma C

更新日期：1995-08-01 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:Chronic hypoxia induces pulmonary vascular remodeling, pulmonary hypertension, and right ventricular hypertrophy. At present, little is known about mechanisms driving these responses. Hypoxia-inducible factor-1α (HIF-1α) is a master regulator of transcription in hypoxic cells, up-regulating genes involved in ...

journal_title：American journal of respiratory and critical care medicine

authors： Ball MK,Waypa GB,Mungai PT,Nielsen JM,Czech L,Dudley VJ,Beussink L,Dettman RW,Berkelhamer SK,Steinhorn RH,Shah SJ,Schumacker PT

更新日期：2014-02-01 00:00:00

abstract：:To assess whether there is increased risk of tuberculous infection in children who traveled to or had a household visitor from a country having a high prevalence of tuberculosis, we conducted a case-control study. Children younger than 6 yr of age who had a tuberculin skin test read at public health clinics in areas o...

journal_title：American journal of respiratory and critical care medicine

authors： Lobato MN,Hopewell PC

更新日期：1998-12-01 00:00:00

abstract：:There is a subgroup of cigarette smokers who are more susceptible than others to the deleterious effects of cigarette smoke and to chronic airflow obstruction. The study of histopathologic and physiologic differences between these "susceptible" smokers and "resistant" smokers, who do not develop clinically significant...

journal_title：American journal of respiratory and critical care medicine

authors： Aguayo SM

更新日期：1994-06-01 00:00:00

abstract：RATIONALE:Most patients with pulmonary arterial hypertension (PAH) die from right heart failure. Beta-adrenergic receptor blockade reduces mortality by about 30% in patients with left-sided systolic heart failure, but is not used in PAH. OBJECTIVES:To assess the effect of the adrenergic receptor blocker carvedilol on ...

journal_title：American journal of respiratory and critical care medicine

authors： Bogaard HJ,Natarajan R,Mizuno S,Abbate A,Chang PJ,Chau VQ,Hoke NN,Kraskauskas D,Kasper M,Salloum FN,Voelkel NF

更新日期：2010-09-01 00:00:00

abstract：:The gas exchange threshold (GET) has been used an an index of anaerobic threshold because it can be measured noninvasively. GET is estimated from a breakpoint in breath by breath values of carbon dioxide uptake (Vco2) and oxygen uptake (Vo2) obtained during a progressive exercise test. Three methods of estimating GET ...

journal_title：American journal of respiratory and critical care medicine

authors： Magalang UJ,Grant BJ

更新日期：1995-01-01 00:00:00

abstract：:Prior data indicate positive effects of long-term exercise interventions for cognitive functioning among patients with chronic obstructive pulmonary disease (COPD), but no prior studies have examined acute effects of individual bouts of exercise among patients with COPD. This study evaluated acute effects of exercise ...

journal_title：American journal of respiratory and critical care medicine

authors： Emery CF,Honn VJ,Frid DJ,Lebowitz KR,Diaz PT

更新日期：2001-11-01 00:00:00

abstract：:Mycoplasma pulmonis infection in rats causes a chronic inflammatory airway disease. Along with extensive remodeling of the airway mucosa, lymphocytic infiltrates, angiogenesis, and mucosal thickening, there is an abnormal sensitivity of the blood vessels to mediators that evoke "neurogenic inflammation". As a result, ...

journal_title：American journal of respiratory and critical care medicine

authors： Bowden JJ,Schoeb TR,Lindsey JR,McDonald DM

更新日期：1994-11-01 00:00:00

abstract：:Ventilation style influences lung injury and the amount of large-aggregate biophysically active surfactant in adult lungs. We asked how positive end-expiratory pressures (PEEP) would influence clinical responses and surfactant pools in surfactant-treated preterm lambs ventilated for 7 h with tidal volumes (VT) of 10 m...

journal_title：American journal of respiratory and critical care medicine

authors： Michna J,Jobe AH,Ikegami M

更新日期：1999-08-01 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:Tissue resident memory T cells play a critical role in the defense against inhaled pathogens. The isolation and study of human lung tissue resident memory T cells and lung resident macrophages is limited by experimental constraints. OBJECTIVES:To characterize the spatial and functional relationship between l...

journal_title：American journal of respiratory and critical care medicine

authors： Snyder ME,Sembrat J,Noda K,Myerburg MM,Craig A,Mitash N,Harano T,Furukawa M,Pilewski J,McDyer J,Rojas M,Sanchez P

更新日期：2020-12-11 00:00:00

abstract：:Silicosis is characterized by fibrosing nodular lesions that may eventually develop into progressive massive fibrosis (PMF). Cytokines (interleukin-1beta [IL-1beta], tumor necrosis factor-alpha [TNF-alpha] and growth factors insulin-like growth factor-1 [IGF-1] platelet-derived growth factor [PDGF]) have been implicat...

journal_title：American journal of respiratory and critical care medicine

authors： Jagirdar J,Begin R,Dufresne A,Goswami S,Lee TC,Rom WN

更新日期：1996-10-01 00:00:00

abstract：:We investigated 116 Italian atopic families (560 individuals) for linkage with 13 DNA markers on chromosome 12. All the subjects were phenotyped for asthma, total serum IgE, bronchial hyperresponsiveness, skin-prick positivity to common aeroallergens, and atopy. A relative location map of the markers was prepared from...

journal_title：American journal of respiratory and critical care medicine

authors： Malerba G,Lauciello MC,Scherpbier T,Trabetti E,Galavotti R,Cusin V,Pescollderungg L,Zanoni G,Martinati LC,Boner AL,Levitt RC,Pignatti PF

更新日期：2000-10-01 00:00:00

abstract：RATIONALE:Patients with chronic obstructive pulmonary disease (COPD) show a poor response to corticosteroids. This has been linked to a reduction of histone deacetylase-2 as a result of oxidative stress and is reversed by theophylline. OBJECTIVES:To determine the role of phosphoinositide-3-kinase-delta (PI3K-δ) on the...

journal_title：American journal of respiratory and critical care medicine

authors： To Y,Ito K,Kizawa Y,Failla M,Ito M,Kusama T,Elliott WM,Hogg JC,Adcock IM,Barnes PJ

更新日期：2010-10-01 00:00:00

abstract：RATIONALE:Few studies have examined associations between exposure to air pollution and childhood lung function after implementation of strict air quality regulations in the 1990s. OBJECTIVES:To assess traffic-related pollution exposure and childhood lung function. METHODS:We geocoded addresses for 614 mother-child pa...

journal_title：American journal of respiratory and critical care medicine

authors： Rice MB,Rifas-Shiman SL,Litonjua AA,Oken E,Gillman MW,Kloog I,Luttmann-Gibson H,Zanobetti A,Coull BA,Schwartz J,Koutrakis P,Mittleman MA,Gold DR

更新日期：2016-04-15 00:00:00

abstract：:Asthma is a common chronic disease without cure. Our understanding of asthma onset, pathobiology, classification, and management has evolved substantially over the past decade; however, significant asthma-related morbidity and excess healthcare use and costs persist. To address this important clinical condition, the N...

journal_title：American journal of respiratory and critical care medicine

authors： Levy BD,Noel PJ,Freemer MM,Cloutier MM,Georas SN,Jarjour NN,Ober C,Woodruff PG,Barnes KC,Bender BG,Camargo CA Jr,Chupp GL,Denlinger LC,Fahy JV,Fitzpatrick AM,Fuhlbrigge A,Gaston BM,Hartert TV,Kolls JK,Lynch SV,Moo

更新日期：2015-12-01 00:00:00

abstract：:To compare the effectiveness of information delivered to family members of critically ill patients by junior and senior physicians, we performed a prospective randomized multicenter trial in 11 French intensive care units. Patients (n = 220) were allocated at random to having their family members receive information b...

journal_title：American journal of respiratory and critical care medicine

authors： Moreau D,Goldgran-Toledano D,Alberti C,Jourdain M,Adrie C,Annane D,Garrouste-Orgeas M,Lefrant JY,Papazian L,Quinio P,Pochard F,Azoulay E

更新日期：2004-02-15 00:00:00

abstract：:In a previous study of older pulp and paper workers in Berlin, New Hampshire, decrements in spirometry results associated with accidental exposures to high levels of irritant gases depended on cumulative levels of pulp mill exposure and cigarette smoking. Many of those subjects were older and retired. A new study was ...

journal_title：American journal of respiratory and critical care medicine

authors： Henneberger PK,Lax MB,Ferris BG Jr

更新日期：1996-01-01 00:00:00

abstract：RATIONALE:The serial computed tomography findings and prognosis of the acute exacerbation of idiopathic pulmonary fibrosis (IPF) are not yet well defined in a larger number of cases. OBJECTIVES:To evaluate the parenchymal abnormalities and prognosis using high-resolution computed tomography (HRCT) in acute exacerbatio...

journal_title：American journal of respiratory and critical care medicine

authors： Akira M,Kozuka T,Yamamoto S,Sakatani M

更新日期：2008-08-15 00:00:00

abstract：RATIONALE:Smoking is a primary risk factor for chronic bronchitis, emphysema, and chronic obstructive pulmonary disease, but since not all smokers develop disease, it has been suggested that some individuals may be more susceptible to exogenous factors, such as smoking, and that this susceptibility could be genetically...

journal_title：American journal of respiratory and critical care medicine

authors： Hallberg J,Dominicus A,Eriksson UK,Gerhardsson de Verdier M,Pedersen NL,Dahlbäck M,Nihlén U,Higenbottam T,Svartengren M

更新日期：2008-03-01 00:00:00

abstract：RATIONALE:Lung cancer screening using computed tomography (CT) is effective in detecting lung cancer in early stages. Concerns regarding false-positive rates and unnecessary invasive procedures have been raised. OBJECTIVE:To study the efficiency of a lung cancer protocol using spiral CT and F-18-fluorodeoxyglucose pos...

journal_title：American journal of respiratory and critical care medicine

authors： Bastarrika G,García-Velloso MJ,Lozano MD,Montes U,Torre W,Spiteri N,Campo A,Seijo L,Alcaide AB,Pueyo J,Cano D,Vivas I,Cosín O,Domínguez P,Serra P,Richter JA,Montuenga L,Zulueta JJ

更新日期：2005-06-15 00:00:00

abstract：:Snoring and sleeping apnea are reportedly associated with morbidity. We used home monitoring (MESAM IV) to measure snoring and sleep apnea in 294 men aged 40 to 65 yr from the volunteer register of the Busselton (Australia) Health Survey. In this group, 81% snored for more than 10% of the night and 22% for more than h...

journal_title：American journal of respiratory and critical care medicine

authors： Bearpark H,Elliott L,Grunstein R,Cullen S,Schneider H,Althaus W,Sullivan C

更新日期：1995-05-01 00:00:00

abstract：:Effective treatment of tuberculosis requires adherence to a minimum of 6 months treatment with multiple drugs. To improve adherence and cure rates, directly observed therapy is recommended for the treatment of pulmonary tuberculosis. We compared treatment outcomes among all culture-positive patients treated for active...

journal_title：American journal of respiratory and critical care medicine

authors： Jasmer RM,Seaman CB,Gonzalez LC,Kawamura LM,Osmond DH,Daley CL

更新日期：2004-09-01 00:00:00