7 ফলাফল
Bronchial challenge with different stimuli provides different information and may be used as an adjunct to understand the pathophysiology of cough variant asthma (CVA) in young children in whom the mechanism of disease is still unresolved. This study was designed to investigate the hypothesis that
BACKGROUND
Airway hyperresponsiveness (AHR) can be studied by bronchoprovocation test (BPT) using direct (methacholine - MCh) or indirect (adenosine 5'-monophosphate - AMP) stimuli. These two substances have not been compared in cough variant asthma (CVA).
OBJECTIVE
We designed a randomized,
OBJECTIVE
Extracellular adenosine 5'-triphosphate (ATP) causes neurogenic bronchoconstriction, inflammation, and coughs, and may play a mechanistic role in obstructive airway diseases. The aims of this study were to determine the effects of inhaled ATP on airway function, and to compare these
BACKGROUND
Increased concentrations of exhaled nitric oxide (ENO) are identified predominantly in subjects with chronic cough due to conditions that habitually respond well to therapy with inhaled corticosteroids (ICSs). The aim of this study was to assess the usefulness of ENO in predicting the
Adenosine 5'-triphosphate (ATP) stimulates pulmonary vagal slow conducting C-fibres and fast conducting Aδ-fibres with rapidly adapting receptors (RARs). Pulmonary C-fibres but not RARs are also sensitive to capsaicin, a potent tussigenic agent in humans. Thus, the aim of this study was to determine
Exhaled nitric oxide (eNO) has been used to diagnose asthma in adults and children using either the slow vital capacity method (SVCm) or, in younger children, the tidal breathing method (TBm). Adenosine 5'-monophosphate (AMP) challenge also has been found to be a sensitive and specific test for the
BACKGROUND
Indirect airway challenge tests are commonly used in the diagnosis of exercise-induced bronchoconstriction (EIB), defined as a post-exercise decrease in FEV(1) ≥ 10%. The aim of this study was to evaluate the diagnostic value of bronchial hyperreactivity tests in the diagnosis of