European Respiratory Journal
0903-1936
1399-3003
Thụy Sĩ
Cơ quản chủ quản: EUROPEAN RESPIRATORY SOC JOURNALS LTD , European Respiratory Society
Lĩnh vực:
Pulmonary and Respiratory MedicineMedicine (miscellaneous)
Phân tích ảnh hưởng
Thông tin về tạp chí
The ERJ publishes clinical and experimental work relating to all aspects of adult and paediatric respiratory medicine, including cell biology, epidemiology, immunology, oncology, pathophysiology, imaging, occupational medicine, intensive care, sleep medicine and thoracic surgery. In addition to original research material, the ERJ also publishes editorial commentaries, reviews, short research letters and correspondence to the editor. Articles are published continuously and collected into 12 monthly issues in two volumes per year.
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Methods of sputum processing for cell counts, immunocytochemistry and in situ hybridisation
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Mortality of sleep apnoea patients treated by nasal continuous positive airway pressure registered in the ANTADIR observatory
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Variation in bronchial responsiveness in the European Community Respiratory Health Survey (ECRHS) Attempts to compare bronchial responsiveness between populations have been hampered by between-study differences in the pharmacological agent of provocation, the method of administration and the summary statistic employed. The European Community Respiratory Health Survey used methacholine challenge delivered by Mefar dosimeter according to a standardized protocol used in 35 centres in 16 countries. Data were obtained from 13,161 men and women, aged 20-44 yrs at the start of the study. The dose of methacholine producing a 20% fall in forced expiratory volume in one second (FEV1) (PD20) and the regression coefficient of percentage decline in FEV1 with log dose, were calculated ("slope", after transformation), with and without calibration of nebulizers by weight and adjustment for nonresponse bias. Standardization for baseline lung function and variation in smoking prevalence was applied to slope. Results were robust to whichever summary measure was used, and to the various adjustments. Responsiveness was low in Iceland and Switzerland, and in most centres in Sweden, Italy and Spain, and high in New Zealand, Australia, the USA, Britain, France, Denmark and Germany. Bronchial responsiveness varies considerably in Europe, and high levels are not confined to the English-speaking world.
Tập 10 Số 11 - Trang 2495-2501 - 1997
Inhalation of swine dust induces cytokine release in the upper and lower airways In healthy subjects, acute inhalation of swine dust causes an influx of inflammatory cells into the airways and increased bronchial responsiveness. The exposure may also cause fever and generalized symptoms. It seems likely that proinflammatory cytokines are involved in the response to inhaled swine dust. Nasal and bronchoalveolar lavage (BAL) were performed before, and 7 and 24 h after the start of 3 h exposure to swine dust, during a period of work in a swine confinement building, in 22 healthy subjects. Lavage fluids were analysed with regard to the cellular response and concentrations of interleukin (IL)-1 alpha, IL-1 beta, IL-6 and tumour necrosis factor-alpha (TNF-alpha). Each subject carried personal samplers for exposure measurements. Inhalable dust and airborne endotoxin, 3-hydroxylated (2-OH) fatty acid and muramic acid were measured. Bronchial responsiveness to methacholine was investigated 1-2 weeks before and 7 h after the start of the exposure. Exposure caused fever (> 38 degrees C) in three subjects, and approximately 25% of the subjects experienced symptoms. Bronchial responsiveness to methacholine increased by 3.5 (1.6-4.8) doubling doses (median (25th-75th percentile)). Following exposure, granulocytes increased more than 50 fold in BAL fluid and more than 40 fold in nasal lavage fluid. IL-1 alpha and IL-1 beta increased significantly in BAL fluid (p < 0.05) and nasal lavage fluid (p < 0.01). IL-6 increased 25 fold in BAL and 15 fold in nasal lavage fluid (p < 0.001). TNF-alpha was below detection limit (0.25 ng.L-1) in most subjects before exposure and increased following exposure to 3.8 (2.4-5.7) and 1.3 (0.6-2.3) ng.L-1 in BAL and nasal lavage fluid, respectively, (p < 0.001). Total inhalable dust was 20.5 (14.6-30.0) mg.m-3 and the concentrations of airborne endotoxin, 3-OH fatty acid and muramic acid were 1.2 (0.8-1.4), 3.5 (2.2-4.5) and 0.9 (0.3-1.9) microgram.m-3, respectively. There was a significant correlation between the IL-6 response in BAL fluid and exposure to dust endotoxin activity and 3-OH fatty acids (p < 0.05). Otherwise, no significant correlations were found between exposure and the cytokine response. We conclude that exposure to swine dust causes an intense upper and lower airway inflammation, which involves the proinflammatory cytokines interleukin-1, interleukin-6 and tumour necrosis factor-alpha.
Tập 10 Số 2 - Trang 381-387 - 1997
Reactive oxygen species in acute lung injury The acute respiratory distress syndrome (ARDS) in adults is associated with a wide variety of precipitating factors, often not directly involving the lung, and has an associated mortality of 50-80%. ARDS is almost invariably associated with sepsis, either as an initiating factor or as a secondary complication, which increases the expression of a number of cytokines impacting upon several cellular systems. Specifically, activation of neutrophils sequestered in the pulmonary circulation by this process, causes the release of free radicals and reactive oxygen species (ROS), increasingly regarded as key substances modulating the endothelial dysfunction and disruption responsible for the principal clinical manifestations of the syndrome. Here we discuss briefly the pathophysiology of ARDS and its impact upon pulmonary vascular control; the biological origins of free radicals and other ROS involved, the mechanisms of their damaging effects, their contribution to the modification of pulmonary vascular control mechanisms in lung injury and possible therapeutic perspectives.
Tập 11 Số 3 - Trang 745-757 - 1998