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Intrapleural talc is used to produce pleurodesis in malignant pleural effusions. Prior in vivo studies have documented an acute inflammatory response to talc in the pleural space but the cellular source of cytokines has not been identified. The aim of this study was to investigate the acute response of rabbit pleural mesothelial cells challenged with talc used for pleurodesis and compare it to prior...
Nontuberculous mycobacteria (NTM) are intracellular pathogens that elicit a specific T-cell response characterized by the production of proinflammatory cytokines, including interferon (IFN)-γ, tumor necrosis factor (TNF)-α, and interleukin (IL)-12. However, little information exists regarding the levels of specific cytokines in patients with NTM lung disease. Therefore, we compared cytokine production...
In bacterial empyema the pleural mesothelium is constantly exposed to microorganisms. Staphylococcus aureus (S. aureus) is one of the most frequent pathogens associated with empyema. In an earlier study we demonstrated that S. aureus induced barrier dysfunction in pleural mesothelial cell monolayers. In the present study we report that S. aureus activates the early response genes c-fos and c-jun and...
Obese mice that lack leptin receptor (db−/db−) have been shown to have innate bronchial hyperresponsiveness (BHR). It has been proposed that the obesity-mediated BHR may involve a combination of increased leptin and reduced systemic adiponectin levels. The aim of this study was to determine if obesity modifies the airway concentration of leptin and adiponectin and whether treatment with a synthetic...
Chemical pleurodesis using various sclerosing agents is accepted palliative therapy for patients with recurrent, symptomatic, malignant pleural effusions (MPE). However, the utility of various clinical and biochemical parameters in predicting pleurodesis outcome is still controversial. The objective of this study was to investigate the relationship between pleural fluid adenosine deaminase (Pf-ADA)...
The aim of this study was to evaluate the value of pulmonary function tests performed before an autologous peripheral stem cell transplant (APSCT) in identifying patients who are at risk for developing post-transplant pulmonary complications. This retrospective study included patients who underwent autologous peripheral stem cell transplantation from January 1997 to December 2006. The total sample...
Objective The purpose of this study was to investigate whether the expression of AQP-1 on the pleura is altered in a rat model with a tuberculous pleural effusion (TPE) and to study its function. Methods A TPE model was established by intrapleural inoculation with 0.03 mg (2 ml) standard tuberculosis bacillus (H37Rv). The rats with TPE were sacrificed at different time points (day 1, 3, or 5) after...
Advancing age is associated with a decline in the strength of the skeletal muscles, including those of respiration. Respiratory muscles can be strengthened with nonrespiratory activities. We therefore hypothesized that regular exercise in the elderly would attenuate this age-related decline in respiratory muscle strength. Twenty-four healthy subjects older than 65 years were recruited (11 males and...
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