Role of Autonomic Nervous System and the Cough Reflex in the Increased Responsiveness of Airways in Patients with Obstructive Airway Disease*
AUTOR(ES)
Simonsson, B. G.
RESUMO
Inhalation of aerosols of citric acid, histamine phosphate, or carbon dust, or air cooled to - 20°C or rapid respiratory maneuvers (inspiration or expiration) results in an increase in airway resistance in some patients with asthma or bronchitis. It has been shown previously in animals that stimulation of cough receptors results in bronchoconstriction through efferent cholinergic pathways. In the patients studied, the administration of atropine sulfate, which would block such pathways, abolished the bronchoconstrictor effects of all the stimuli except large doses of histamine, which may exert a direct effect on airway smooth muscle. These data suggest that sensitized cough receptors may be involved in triggering reflex airway constriction in such patients.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=292931Documentos Relacionados
- Assessment of reversibility of airway obstruction in patients with chronic obstructive airways disease.
- Assessment of reversibility of airway obstruction in patients with chronic obstructive airways disease.
- PHYSIOLOGICAL FACTORS AFFECTING AIRWAY RESISTANCE IN NORMAL SUBJECTS AND IN PATIENTS WITH OBSTRUCTIVE RESPIRATORY DISEASE*
- Effects of inhaled budesonide on spirometric values, reversibility, airway responsiveness, and cough threshold in smokers with chronic obstructive lung disease.
- Effects of cessation of terbutaline treatment on airway obstruction and responsiveness in patients with chronic obstructive pulmonary disease.