Clearance Alveolar
Mostrando 1-12 de 116 artigos, teses e dissertações.
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1. Estudo da ação do veneno de Tityus serrulatus sobre a expressão de transportadores de sódio e água em epitélio alveolar de rato / Effect of Tityus serrulatus venom on sodium and water trasporters in rat alveolar epithelium
Acidentes escorpiônicos podem evoluir com edema pulmonar de origem cardiogênica e não cardiogênica. O clearance de edema pulmonar está relacionado principalmente ao transporte ativo de sódio do espaço alveolar para o interstício. O objetivo deste trabalho foi avaliar os efeitos do veneno de Tityus serrulatus e da dexametasona sobre a expressão dos t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/08/2012
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2. Lymphatic fluctuation in the parenchymal remodeling stage of acute interstitial pneumonia, organizing pneumonia, nonspecific interstitial pneumonia and idiopathic pulmonary fibrosis
Because the superficial lymphatics in the lungs are distributed in the subpleural, interlobular and peribroncovascular interstitium, lymphatic impairment may occur in the lungs of patients with idiopathic interstitial pneumonias (IIPs) and increase their severity. We investigated the distribution of lymphatics in different remodeling stages of IIPs by immuno
Brazilian Journal of Medical and Biological Research. Publicado em: 2012-05
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3. Toxicity of cyanide in swine: evaluation of perinatal effects / Toxicidade do cianeto em suínos. Avaliação dos efeitos perinatais
Cyanide and cyanogenic compounds are ubiquitous in nature and widely studied in toxicology. Long-term cyanide exposure has been associated to development of goiter, pancreatic diabetes, and several neurological diseases in humans and animals. However, the exact mechanism involved in induction of these diseases are not fully elucidated. It is believed that th
Publicado em: 2006
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4. Experimental murine mycobacteriosis: evaluation of the functional activity of alveolar macrophages in thalidomide- treated mice
Thalidomide is a selective inhibitor of tumor necrosis factor-alpha (TNF-alpha), a cytokine involved in mycobacterial death mechanisms. We investigated the role of this drug in the functional activity of alveolar macrophages in the presence of infection induced by intranasal inoculation of Mycobacterium avium in thalidomide-treated and untreated adult Swiss
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-04
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5. Acute bacterial pneumonia in rats increases alveolar epithelial fluid clearance by a tumor necrosis factor-alpha-dependent mechanism.
To study the rate and regulation of alveolar fluid clearance in acute pneumonia, we created a model of Pseudomonas aeruginosa pneumonia in rats. To measure alveolar liquid and protein clearance, we instilled into the airspaces a 5% bovine albumin solution with 1.5 microCi of 125I-human albumin, 24 h after intratracheal instillation of bacteria. The concentra
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6. Alveolar epithelial fluid clearance is mediated by endogenous catecholamines at birth in guinea pigs.
Transition from placental to pulmonary oxygenation at birth depends on a rapid removal of fetal lung fluid from the developing alveoli. Alveolar fluid clearance was examined in ventilated, anesthetized developing guinea pigs of the ages newborn, 2-d-old, 5-d-old, 30-d-old, and 60-d-old (adult). An isosmolar 5% albumin solution was instilled into the lungs of
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7. Intrapulmonary growth of Staphylococcus aureus in rats during induced atelectasis.
Intrinsic pulmonary antibacterial defenses are mediated by alveolar macrophages and by noncellular factors. Mechanical ventilation in the resting tidal volume range leads to alterations in the physical characteristics of alveolar surfactant, alveolar instability, regional hypoxia, and systemic hypoxemia. While a number of experimental manipulations diminish
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8. 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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9. Integrity of the alveolar-capillary barrier and alveolar surfactant system in smokers.
BACKGROUND: The permeability of the alveolar-capillary barrier to technetium-99m labelled diethylenetriamine pentaacetate (99mTc DTPA) is known to be greatly increased in smokers, but the underlying mechanism is poorly understood. Abnormal permeability of the alveolar epithelium as well as impaired surfactant function has been suggested. The purpose of this
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10. 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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11. Stimulation of lung epithelial liquid clearance by endogenous release of catecholamines in septic shock in anesthetized rats.
Exogenous administration of beta-adrenergic agonists has previously been reported to increase lung liquid clearance by stimulation of active sodium transport across the alveolar epithelium. We hypothesized for this study that endogenous release of epinephrine in septic shock would stimulate liquid clearance from the airspaces in rats. Liquid clearance from t
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12. Passive Immunization of Neonatal Mice against Pneumocystis carinii f. sp. muris Enhances Control of Infection without Stimulating Inflammation
Pneumocystis carinii is an opportunistic fungal pathogen that causes life-threatening pneumonia in immunocompromised individuals. Infants appear to be particularly susceptible to infection with Pneumocystis. We have previously shown that there is a significant delay in clearance of the organisms from the lungs of neonatal mice compared to adults. Since alveo
American Society for Microbiology.