Histamine release in exercise-induced asthma.
نویسندگان
چکیده
منابع مشابه
Histamine-Induced versus Exercise-Induced Asthma in Young Adults
Objective: The objective of the study was to measure the prevalence of exercise induced asthma among young medical students of Rawalpindi Medical College, Rawalpindi and to compare airway responses to histamine and exercise challenge. Materials & Methods: Ninety-eight medical students from Rawalpindi Medical College, Rawalpindi were selected after obtaining written consent. They were asked to f...
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An episode of exercise induced asthma will usually be followed by a period during which further exercise will not induce asthma. Postulated mechanisms include persistence of catecholamines released during exercise, development of tolerance to released mediators, and mediator depletion. To investigate the underlying mechanism further eight asthmatic men underwent three experimental protocols as ...
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1. Arterial plasma histamine concentrations, forced expiratory volume in 1.0 s (FEV1.0) and peak expiratory flow rate were determined in nine patients with exercise-induced asthma and in five control subjects before and after 8 min of cycle-ergometer exercise. 2. In the controls neither FEV1.0 nor peak expiratory flow rate fell by more than 5% in any individual during the 30 min postexercise pe...
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The article in this issue of RESPIRATORY CARE by Burnett et al1 reports that 34 of 80 college athletes had exerciseinduced bronchoconstriction (EIB), most in the absence of symptoms. The authors further suggest that these athletes are at risk and that the identification of those with EIB may prevent morbidity and mortality. The implication is that the presence of EIB is evidence for asthma. But...
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1. Venous plasma histamine was measured by a specific and sensitive radioenzymatic assay in seven male extrinsic asthmatic and six age-matched non-atopic non-asthmatic male subjects during exercise and voluntary isocapnic hyperventilation. 2. There was no change in peak expiratory flow in normal subjects with exercise or hyperventilation, but asthmatic subjects showed a 29.4 +/- SEM 5.8% fall a...
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ژورنال
عنوان ژورنال: BMJ
سال: 1978
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.1.6128.1697