A lung computed tomographic assessment of positive end-expiratory pressure-induced lung overdistension.

abstract：:Idiopathic pulmonary fibrosis (IPF) is a progressive, life-threatening, interstitial lung disease of unknown etiology. The median survival of patients with IPF is only 2 to 3 years, yet some patients live much longer. Respiratory failure resulting from disease progression is the most frequent cause of death. To date w...

journal_title：American journal of respiratory and critical care medicine

authors： Ley B,Collard HR,King TE Jr

更新日期：2011-02-15 00:00:00

abstract：RATIONALE:Extracellular nucleotides have recently been identified as proinflammatory mediators involved in asthma pathogenesis by signaling via purinergic receptors, but the role of the purinergic receptor type 6 (P2Y6R) has not been previously investigated. OBJECTIVES:To investigate the role of P2Y6R in asthma pathog...

journal_title：American journal of respiratory and critical care medicine

authors： Vieira RP,Müller T,Grimm M,von Gernler V,Vetter B,Dürk T,Cicko S,Ayata CK,Sorichter S,Robaye B,Zeiser R,Ferrari D,Kirschbaum A,Zissel G,Virchow JC,Boeynaems JM,Idzko M

更新日期：2011-07-15 00:00:00

abstract：:It is controversial whether obstructive sleep apnea (OSA) causes pulmonary hypertension (PH) in the absence of hypoxemic lung disease. To investigate this further we measured awake pulmonary hemodynamics, pulmonary gas exchange, and small airways function in 32 patients with OSA (apnea- hypopnea index, mean +/- SE, 46...

journal_title：American journal of respiratory and critical care medicine

authors： Sajkov D,Wang T,Saunders NA,Bune AJ,Neill AM,Douglas Mcevoy R

更新日期：1999-05-01 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：RATIONALE:Epithelial-mesenchymal transition (EMT) plays a key role in the development of chronic obstructive pulmonary disease (COPD) and lung cancer. OBJECTIVES:There are five major EMT regulatory genes (Snai1, Slug, Zeb1, Zeb2, and Twist1) involved in EMT. We hypothesized that germline variants in these genes may in...

journal_title：American journal of respiratory and critical care medicine

authors： Yang L,Yang X,Ji W,Deng J,Qiu F,Yang R,Fang W,Zhang L,Huang D,Xie C,Zhang H,Zhong N,Ran P,Zhou Y,Lu J

更新日期：2014-01-15 00:00:00

abstract：RATIONALE:Pulmonary complications (PCs) cause significant morbidity and mortality after allogeneic hematopoietic stem cell transplantation (HCT). Shifts in gut microbiota have been linked to HCT outcomes; however, their effect on PCs is unknown. OBJECTIVES:To investigate whether changes in gut microbiota are associate...

journal_title：American journal of respiratory and critical care medicine

authors： Harris B,Morjaria SM,Littmann ER,Geyer AI,Stover DE,Barker JN,Giralt SA,Taur Y,Pamer EG

更新日期：2016-08-15 00:00:00

abstract：RATIONALE:Immediate graft performance after lung transplantation is associated with short- and long-term clinical outcomes. However, the biologic mechanism that determines outcomes is not fully understood. OBJECTIVES:To investigate the impact of cell death signals at 24 and 48 hours after lung transplantation on short...

journal_title：American journal of respiratory and critical care medicine

authors： Hashimoto K,Besla R,Zamel R,Juvet S,Kim H,Azad S,Waddell TK,Cypel M,Liu M,Keshavjee S

更新日期：2016-07-01 00:00:00

abstract：:Numerous in vitro and in vivo studies in both animals and patients with asthma have shown that interleukin (IL)-9 is an important inflammatory mediator in asthma. To examine the effects of IL-9 antagonism on airway inflammation, ovalbumin-sensitized BALB/c mice were intravenously given anti-IL-9 antibody or an isotype...

journal_title：American journal of respiratory and critical care medicine

authors： Cheng G,Arima M,Honda K,Hirata H,Eda F,Yoshida N,Fukushima F,Ishii Y,Fukuda T

更新日期：2002-08-01 00:00:00

abstract：:Induced sputum using hypertonic saline (HS) is a useful research tool to study airway inflammation (AI). HS provocation testing can also be used to measure airway hyperresponsiveness (AHR). A combined HS challenge and sputum induction procedure has been developed to permit assessment of AI and AHR in a single test. Th...

journal_title：American journal of respiratory and critical care medicine

authors： Jones PD,Hankin R,Simpson J,Gibson PG,Henry RL

更新日期：2001-10-01 00:00:00

abstract：:The mechanisms of exertional dyspnea relief in response to supplemental oxygen (O2) in chronic airflow limitation (CAL) are not precisely known and are likely multifactorial. To explore factors contributing to the relief of dyspnea after oxygen administration, 11 patients with severe CAL (FEV1.0 = 39 +/- 3% predicted,...

journal_title：American journal of respiratory and critical care medicine

authors： O'Donnell DE,Bain DJ,Webb KA

更新日期：1997-02-01 00:00:00

abstract：:Idiopathic pulmonary fibrosis (IPF) is a chronic, fibrotic disorder underlain by aberrant wound healing of repeated lung injury. Environmental triggers and genetic background are likely to act as modifiers of the fibrotic response. Erythrocyte complement receptor 1 is a membrane protein mediating the transport of immu...

journal_title：American journal of respiratory and critical care medicine

authors： Zorzetto M,Ferrarotti I,Trisolini R,Lazzari Agli L,Scabini R,Novo M,De Silvestri A,Patelli M,Martinetti M,Cuccia M,Poletti V,Pozzi E,Luisetti M

更新日期：2003-08-01 00:00:00

abstract：RATIONALE:Obstructive sleep apnea (OSA) is associated with systemic hypertension. Either overnight intermittent hypoxia, or the recurrent arousals that occur in OSA, could cause the daytime increases in blood pressure (BP). OBJECTIVES:To establish the role of intermittent hypoxia in the increased morning BP in patient...

journal_title：American journal of respiratory and critical care medicine

authors： Turnbull CD,Sen D,Kohler M,Petousi N,Stradling JR

更新日期：2019-01-15 00:00:00

abstract：:Exposure to fine airborne particulate matter (PM(2.5)) is associated with cardiovascular events and mortality in older and cardiac patients. Potential physiologic effects of in-vehicle, roadside, and ambient PM(2.5) were investigated in young, healthy, nonsmoking, male North Carolina Highway Patrol troopers. Nine troo...

journal_title：American journal of respiratory and critical care medicine

authors： Riediker M,Cascio WE,Griggs TR,Herbst MC,Bromberg PA,Neas L,Williams RW,Devlin RB

更新日期：2004-04-15 00:00:00

abstract：:Positive pressure ventilation with large VTs has been shown to cause release of cytokines, including macrophage inflammatory protein-2 (MIP-2), a functional equivalent of human interleukin-8. The mechanisms regulating ventilation-induced cytokine production are unclear. Based on our previous in vitro model of lung cel...

journal_title：American journal of respiratory and critical care medicine

authors： Li LF,Yu L,Quinn DA

更新日期：2004-02-15 00:00:00

abstract：RATIONALE:Chronic obstructive pulmonary disease (COPD) is characterized by chronic airflow limitation caused by a combination of airways disease (bronchiolitis) and parenchymal destruction (emphysema), whose relative proportion varies from patient to patient. OBJECTIVES:To explore and contrast the molecular pathogenes...

journal_title：American journal of respiratory and critical care medicine

authors： Faner R,Cruz T,Casserras T,López-Giraldo A,Noell G,Coca I,Tal-Singer R,Miller B,Rodriguez-Roisin R,Spira A,Kalko SG,Agustí A

更新日期：2016-06-01 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：RATIONALE:Reactivation tuberculosis (TB) occurs as a result of reactivation of latent TB infection (LTBI), and was reported to occur in the United States at a rate of 0.10 to 0.16 cases per 100 person-years in the 1950s; it has not been measured since. OBJECTIVES:To calculate the rate of reactivation TB in a U.S. comm...

journal_title：American journal of respiratory and critical care medicine

authors： Horsburgh CR Jr,O'Donnell M,Chamblee S,Moreland JL,Johnson J,Marsh BJ,Narita M,Johnson LS,von Reyn CF

更新日期：2010-08-01 00:00:00

abstract：:POEMS (polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes) syndrome is a rare variant of plasma cell dyscrasia with multiple systemic manifestations. We followed the progress of 20 patients with POEMS syndrome in our institution over a 10-yr period. Pulmonary hypertension (PH) was ob...

journal_title：American journal of respiratory and critical care medicine

authors： Lesprit P,Godeau B,Authier FJ,Soubrier M,Zuber M,Larroche C,Viard JP,Wechsler B,Gherardi R

更新日期：1998-03-01 00:00:00

abstract：:Airway obstruction (AO) in exercise-induced asthma (EIA) is considered a postexercise phenomenon. However, many with EIA complain of respiratory distress during exercise. We evaluated AO in six asthmatic subjects during a short (SX = 6 min) and a long (LX = 20 min) exercise session. We measured peak expiratory flow (P...

journal_title：American journal of respiratory and critical care medicine

authors： Suman OE,Babcock MA,Pegelow DF,Jarjour NN,Reddan WG

更新日期：1995-07-01 00:00:00

abstract：:We addressed the hypothesis that noncholinergic parasympathetic nerves modulate airway smooth-muscle (ASM) tone in guinea pigs. The NO synthase inhibitor L-N(G)-nitro-arginine (L-NNA) and the guanylate cyclase inhibitor 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one (ODQ) potentiated cholinergic contractions and partly i...

journal_title：American journal of respiratory and critical care medicine

authors： Kesler BS,Mazzone SB,Canning BJ

更新日期：2002-02-15 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：:Rationale: Noninvasive ventilation decreases the need for invasive mechanical ventilation and mortality among patients with chronic obstructive pulmonary disease but has not been well studied in asthma.Objectives: To assess the association between noninvasive ventilation and subsequent need for invasive mechanical ven...

journal_title：American journal of respiratory and critical care medicine

authors： Althoff MD,Holguin F,Yang F,Grunwald GK,Moss M,Vandivier RW,Ho PM,Kiser TH,Burnham EL

更新日期：2020-12-01 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：:Central airway obstruction is a problem facing all medical and surgical subspecialists caring for patients with chest diseases. The incidence of this disorder appears to be rising because of the epidemic of lung cancer; however, benign causes of central airway obstruction are being seen more frequently as well. The mo...

journal_title：American journal of respiratory and critical care medicine

authors： Ernst A,Feller-Kopman D,Becker HD,Mehta AC

更新日期：2004-06-15 00:00:00

abstract：RATIONALE:Tumor-infiltrating immune cells affect lung cancer outcome. However, the factors that influence the composition and function of the tumor immune environment remain poorly defined and need investigation, particularly in the era of immunotherapy. OBJECTIVES:To determine whether the tumoral immune environment i...

journal_title：American journal of respiratory and critical care medicine

authors： Mansuet-Lupo A,Alifano M,Pécuchet N,Biton J,Becht E,Goc J,Germain C,Ouakrim H,Régnard JF,Cremer I,Laurent-Puig P,Dieu-Nosjean MC,Blons H,Damotte D

更新日期：2016-12-01 00:00:00

abstract：:The virulence of Pseudomonas aeruginosa is partly controlled by the las quorum-sensing system. A rat model of acute pneumonia was used to investigate the pathophysiological impact of this system by comparing the virulence of the wild-type virulent laboratory strain PAO1 with that of its lasR-deleted mutant PAOR. In co...

journal_title：American journal of respiratory and critical care medicine

authors： Lesprit P,Faurisson F,Join-Lambert O,Roudot-Thoraval F,Foglino M,Vissuzaine C,Carbon C

更新日期：2003-06-01 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：:The present study was undertaken to assess the relationship between health-related quality of life (HRQOL) and bronchiolitis obliterans syndrome (BOS), as both represent important parameters of outcome after lung transplantation. HRQOL was measured both cross-sectionally and longitudinally by standardized patient self...

journal_title：American journal of respiratory and critical care medicine

authors： van Den BERG JW,Geertsma A,van Der BIJ W,Koëter GH,de BOER WJ,Postma DS,ten VERGERT EM

更新日期：2000-06-01 00:00:00

abstract：:Elevated levels of ambient particulate matter (PM(10)) have been associated with increased cardiopulmonary morbidity and mortality. We previously showed that the deposition of particles in the lung induces a systemic inflammatory response that includes stimulation of the bone marrow. This marrow response is related to...

journal_title：American journal of respiratory and critical care medicine

authors： van Eeden SF,Tan WC,Suwa T,Mukae H,Terashima T,Fujii T,Qui D,Vincent R,Hogg JC

更新日期：2001-09-01 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