Pulmonary Epithelial Permeability
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Saquinavir plus methylprednisolone ameliorates experimental acute lung injury
Glucocorticoid insensitivity is an important barrier to the treatment of several inflammatory diseases, including acute lung injury (ALI). Saquinavir (SQV) is an inhibitor of the human immunodeficiency virus protease, and the therapeutic effects of SQV in ALI accompanied with glucocorticoid insensitivity have not been previously investigated. In this study,
Braz J Med Biol Res. Publicado em: 06/08/2018
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2. Lung clearance of 99m TC-DTPA in systemic lupus erythematosus
The early demonstration of lung involvement in systemic lupus erythematosus (SLE) patients is a difficult but important task. In the present study we attempted to identify abnormalities in pulmonary clearance of 99mTc-DTPA in SLE, correlating their clearance data with clinical findings and disease activity. Forty-six consecutive SLE patients with and without
Publicado em: 2010
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3. Carboxyhaemoglobin and pulmonary epithelial permeability in man.
The effect of cigarette smoke exposure on pulmonary epithelial permeability was studied in 45 smokers and 22 non-smokers. An index of cigarette smoke exposure was obtained from the carboxyhaemoglobin concentration (HbCO%). Pulmonary epithelial permeability was proportional to the half-time clearance rate of technetium-99m-labelled diethylene triamine pentace
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4. Changes in pulmonary clearance of technetium labelled DTPA during haemodialysis.
An index of pulmonary epithelial permeability has been studied in 12 patients with chronic renal failure during haemodialysis. It was assessed by the half time clearance from lung to blood (t 1/2 LB) of a nebulised solution containing technetium labelled diethylene triamine pentacetic acid (99mTc DTPA). Six patients were cigarette smokers and six were non-sm
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5. Alveolar epithelial permeability in baboons: histamine and capsaicin.
1. We investigated if changes in alveolar epithelial permeability could be initiated by various doses of the irritant capsaicin through stimulation of pulmonary afferent nerves either directly, or indirectly through the release of an intermediate cell mediator, and whether mediation of permeability involved histamine H1 and/or H2 receptors. 2. Alveolar epith
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6. New Developments in the Pathogenesis of Smoke Inhalation-Induced Pulmonary Edema
Smoke inhalation causes most of the deaths in fire-related injuries, with pulmonary edema as a major determinant in the outcome of smoke-inhalation injury. The pathophysiology of pulmonary edema is thought to be related to the products of incomplete combustion. Damage to the integrity of the alveolar epithelium is one of the determinants of the development o
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7. Binding and diffusion characteristics of 14C EDTA and 99mTc DTPA in respiratory tract mucus glycoprotein from patients with chronic bronchitis.
Measurement of pulmonary clearance of an inhaled aerosol of technetium-99m labelled diethylenetriaminepenta-acetate (DTPA) by external detection methods has been used widely as an index of permeability across alveolar epithelium and bronchial mucosa. To determine the applicability of the tracer to measurement of permeability in the airways the diffusion and
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8. Chemokine expression during hepatic ischemia/reperfusion-induced lung injury in the rat. The role of epithelial neutrophil activating protein.
The liver is highly susceptible to a number of pathological insults, including ischemia/reperfusion injury. One of the striking consequences of liver injury is the associated pulmonary dysfunction that may be related to the release of hepatic-derived cytokines. We have previously employed an animal model of hepatic ischemia/reperfusion injury, and demonstrat
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9. Lipid mediator-induced expression of bactericidal/ permeability-increasing protein (BPI) in human mucosal epithelia
Epithelial cells which line mucosal surfaces are the first line of defense against bacterial invasion and infection. Recent studies have also indicated that epithelial cells contribute significantly to the orchestration of ongoing inflammatory processes. Here, we demonstrate that human epithelial cells express bactericidal/permeability-increasing protein (BP
The National Academy of Sciences.
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10. Differential responses of the endothelial and epithelial barriers of the lung in sheep to Escherichia coli endotoxin.
Although intravenous Escherichia coli endotoxin has been used extensively in experimental studies to increase lung endothelial permeability, the effect of E. coli endotoxin on lung epithelial permeability has not been well studied. To examine this issue in sheep, bidirectional movement of protein across the lung epithelial barrier was studied by labeling the
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11. Toxicity of pneumolysin to pulmonary alveolar epithelial cells.
Mortality during the first several days of pneumococcal pneumonia has not decreased appreciably over the past 30 years, despite the widespread use of antibiotics. Disruption of the alveolar epithelial barrier is likely an initial step in the pathogenesis of pneumococcal pneumonia. We report that soluble factors from Streptococcus pneumoniae can directly inju
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12. Claudin-4 augments alveolar epithelial barrier function and is induced in acute lung injury
Intact alveolar barrier function is associated with better outcomes in acute lung injury patients; however, the regulation of alveolar epithelial paracellular transport during lung injury has not been extensively investigated. This study was undertaken to determine whether changes in tight junction claudin expression affect alveolar epithelial barrier proper
American Physiological Society.