Search results for "Bronchitis"
showing 10 items of 68 documents
Endurance training damages small airway epithelium in mice.
2007
RATIONALE: In athletes, airway inflammatory cells were found to be increased in induced sputum or bronchial biopsies. Most data were obtained after exposure to cold and dry air at rest or during exercise. Whether training affects epithelial and inflammatory cells in small airways is unknown. OBJECTIVES: To test whether endurance training under standard environmental conditions causes epithelial damage and inflammation in the small airways of mice. METHODS AND MEASUREMENTS: Formalin-fixed, paraffin-embedded lung sections were obtained in sedentary (n = 14) and endurance-trained (n = 16) Swiss mice at baseline and after 15, 30, and 45 days of training. The following variables were assessed (m…
Pseudomembranous invasive tracheobronchial aspergillosis.
2004
Invasive aspergillus tracheobronchitis is a rare infectious complication in severely immunocompromised patients who are generally neutropenic with haematological diseases, AIDS, or after solid organ transplantation. However, a few cases have been reported with no apparent severe compromise in the host defences.1 Aspergillus tracheobronchitis varies from localised tracheobronchitis …
Phenotypes of COPD patients with a smoking history in Central and Eastern Europe: the POPE Study.
2017
Chronic obstructive pulmonary disease (COPD) represents a major health problem in Central and Eastern European (CEE) countries; however, there are no data regarding clinical phenotypes of these patients in this region.Participation in the Phenotypes of COPD in Central and Eastern Europe (POPE) study was offered to stable patients with COPD in a real-life setting. The primary aim of this study was to assess the prevalence of phenotypes according to predefined criteria. Secondary aims included analysis of differences in symptom load, comorbidities and pharmacological treatment.3362 patients with COPD were recruited in 10 CEE countries. 63% of the population were nonexacerbators, 20.4% frequen…
Tiotropium + olodaterol in patients with moderate to severe COPD with chronic bronchitis and/or emphysema
2017
Introduction: Chronic bronchitis and emphysema are two COPD phenotypes that can affect pharmacologic treatment decisions. Aims: Tiotropium (T) + olodaterol (O) was established for COPD treatment in two large Phase III trials. This post hoc analysis assessed the effect of T+O on lung function, symptoms and health-related quality of life (QoL) in patients (pts) with investigator-defined bronchitis and/or emphysema. Methods: TONADO ® 1+2 were replicate, randomised, double-blind, parallel-group trials. Pts with GOLD 2–4 COPD were randomised to once-daily T+O 2.5/5 or 5/5 µg, T 2.5 or 5 µg, or O 5 µg via Respimat ® inhaler. 1 End points included forced expiratory volume in 1 second (FEV 1 ) area…
Consideraciones diagnósticas sobre el llamado síndrome del pulmón hiperclaro unilateral (síndrome de Swyer-James o de Mc-Leod)
2004
Swyer-James-MacLeod Syndrome (SJMS) is considered to be a relatively uncommon and complex disease characterized by roentgenographic hyperlucency of one lung, lobe, or part of a lobe, due the pulmonary vascular structure and alveolar overdistension. It is sometimes associated with bronchiectasis. This syndrome seems to be an acquired disease that develops after viral bronchiolitis and/or viral pneumonia in early childhood. Microscopically, there is evidence of patchy bronchitis and bronchiolitis.SJMS is usually asymptomatic and discovered accidentally by chest radiography in a child with respiratory symptoms and should be differentiated from other causes of unilateral hyperlucency on chest r…
Airway inflammation in healthy smokers
2012
Cigarette smoking is a risk factor associated with lung cancer and many other neoplasms of various organs, coronary artery disease and numerous vascular disorders, Chronic Obstructive Pulmonary Disease (COPD) and other types of lung diseases [13]. Much work has been done on the in vitro and ex vivo carcinogenetic effects of tobacco smoking while the effects of smoking on innate and adaptive immune function have been studied to a lesser degree. Recent data suggests that cigarette smoke alters the functions of the immune system and increases susceptibility to viral and bacterial infections [4-6]. In the respiratory system along the last years many studies have depicted the changes induced by …
Small airways function and molecular markers in exhaled air in mild asthma.
2005
Background: Several studies suggest that the periphery of the lung is the major site of inflammation in asthma. Fractional exhaled nitric oxide (FeNO) and 8-isoprostane have been proposed as biomarkers of inflammation and oxidative stress. We therefore hypothesised that small airway dysfunction in asthma is of inflammatory origin that can be detected by molecular markers in exhaled air. To test this hypothesis, we examined the relationship of FeNO and 8-isoprostane in exhaled air with small airways function as assessed by the single breath nitrogen test. Methods: Sixteen patients (14 women) with mild atopic asthma (forced expiratory volume in 1 second >80% predicted) of mean (SD) age 23.0 (…
Airway obstruction in relation to symptoms in chronic respiratory disease—a nationally representative population study
2000
Abstract We examined the severity of airway obstruction and the occurrence of respiratory symptoms in a large, nationally representative population sample and in a subgroup of subjects with chronic bronchitis and/or emphysema to obtain information for developing national prevention and treatment strategies for these diseases. The study population comprised of 7217 randomly selected subjects (aged 30 years and older) who participated in a comprehensive health examination survey. The ‘cases' were subjects diagnosed as having chronic bronchitis and/or emphysema. The survey methods comprised of questionnaires, interviews, physical measurements, including spirometry, and clinical examinations. I…
Prospective analysis of infectious disease surveillance data using syndromic information.
2014
In this paper, we describe a Bayesian hierarchical Poisson model for the prospective analysis of data for infectious diseases. The proposed model consists of two components. The first component describes the behavior of disease during nonepidemic periods and the second component represents the increase in disease counts due to the presence of an epidemic. A novelty of our model formulation is that the parameters describing the spread of epidemics are allowed to vary in both space and time. We also show how syndromic information can be incorporated into the model to provide a better description of the data and more accurate one-step-ahead forecasts. These real-time forecasts can be used to …
Estimating regression models with unknown break-points.
2003
This paper deals with fitting piecewise terms in regression models where one or more break-points are true parameters of the model. For estimation, a simple linearization technique is called for, taking advantage of the linear formulation of the problem. As a result, the method is suitable for any regression model with linear predictor and so current software can be used; threshold modelling as function of explanatory variables is also allowed. Differences between the other procedures available are shown and relative merits discussed. Simulations and two examples are presented to illustrate the method.