the relationship between mycoplasma pneumoniae (mp) infection and asthma has rarely been explored through examination of airway reactivity. the aim of this study was to determine airway reactivity changes after mp infection in children. first, 106 children were divided into four groups according to the existence of mp infection and/or asthma. then children with only mp belonged to the mp group;...

Seventeen patients using angiotensin-converting enzyme (ACE) inhibitors for hypertension were evaluated with baseline spirometry followed by determination of bronchial reactivity by challenge with methacholine. There were nine coughers and eight noncoughers in the study. Among the nine coughers, eight demonstrated bronchial hyperreactivity. Conversely, none of the noncoughers disclosed bronchia...

OBJECTIVE In patients with cystic fibrosis, bronchial hyperreactivity is a common finding that has not been conclusively associated with atopy. The objective of the present study was to determine the relationship between chronic colonization or infection with Pseudomonas aeruginosa and bronchial hyperreactivity in a group of patients with cystic fibrosis. PATIENTS AND METHODS A nonspecific hi...

Infants born prematurely are known to display longstanding bronchial hyperreactivity. The mechanism responsible for this is still unclear. Eosinophils are thought to play a central part in the development of bronchial hyperreactivity in asthma. It was the aim of this study to assess the relation of bronchial hyperresponsiveness to potential markers of eosinophilic inflammation in peripheral blo...

Bronchial hyperreactivity has long been recognized as a hallmark of chronic asthma. Less is known about the prevalence and mechanisms of hyperreactivity in chronic obstructive pulmonary disease (COPD). Currently, it is unclear whether the role and mechanisms of hyperreactivity are similar in patients with asthma and COPD or whether the underlying pathophysiologic abnormalities are different for...

Chronic cardiorespiratory disease is associated with low birthweight suggesting the importance of the developmental environment. Prenatal factors affecting fetal growth are believed important, but the underlying mechanisms are unknown. The influence of developmental programming on bronchial hyperreactivity is investigated in an animal model and evidence for comparable associations is sought in ...

Bronchial hyperreactivity is a characteristic feature of bronchial asthma. Recent respiratory infections, allergic rhinitis, atopic family history, pulmonary tuberculosis, pulmonary sarcoidosis, cystic fibrosis, and farmer's lung have also been demonstrated to have bronchial hyperreactivity to inhaled methacholine. It is not known if pulmonary tuberculosis can cause nonspecific bronchial hyperr...

Corresponding author Tel: (+33) 1 45 68 86 82 Fax: (33) 1 45 68 87 03 Email: [email protected] WE examined the effect of the immunosuppressive agent, tacrolimus (FK506), on antigen-induced bronchial hyperreactivity to acetylcholine and leukocyte infiltration into the airways of ovalbumin-challenged guinea-pigs. Subcutaneous injection of 0.5 mg/kg of FK506, 1 h before and 5 h after intra-nasal...

We examined the effect of the immunosuppressive agent, tacrolimus (FK506), on antigen-induced bronchial hyperreactivity to acetylcholine and leukocyte infiltration into the airways of ovalbumin-challenged guinea-pigs. Subcutaneous injection of 0.5 mg/kg of FK506, 1 h before and 5 h after intra-nasal antigen challenge prevented bronchial hyperreactivity to aerosolized acetylcholine, eosinophilia...