Circulating catecholamines in acute asthma.
نویسندگان
چکیده
منابع مشابه
Circulating catecholamines in exercise and hyperventilation induced asthma.
Plasma noradrenaline, adrenaline, and cyclic 3'5' AMP (cAMP) were measured in seven asthmatic patients with known exercise-induced bronchospasm and six matched non-atopic control subjects during a standard treadmill exercise test and then during matched isocapnic hyperventilation. Normal subjects showed a 5.5 fold rise in noradrenaline and a 3.2 fold rise in adrenaline during exercise compared ...
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1. Intra-arterially as well as intradermally administered adrenaline or noradrenaline produces a sweat response. 2. The intensity of the intradermal response is always considerably less than that due to acetylcholine and the threshold of effective concentration is considerably greater than for acetylcholine. The glands also fail to respond to repeated small doses of intradermal catecholamine an...
متن کاملInteraction of corticosteroids and catecholamines in the treatment of asthma.
Twelve patients with airways obstruction (due to asthma and/or chronic bronchitis) were given a trial of prednisone therapy to assess reversibility. Six asthmatic patients responded well but no predictive criteria were found. In three patients improvement in forced expiratory volume in 1 second (FEV1) was detectable at 6 hours but not at 3 hours. One patient took 36 hours to show any sign of im...
متن کاملSequential estimation of plasma catecholamines in exercise-induced asthma.
T h e physiologic effects of circulating plasma catecholamines m a y be responsible for the observed clinical and pathologic findings in exercise-induced asthma. Eleven patients with as thma were given a gradual increase in exercise over 1 2 minutes to a mean total of 5 8 0 0 K p m . P l a s m a catecholamines were measured in the resting state, at the peak of exercise and ten minutes after the...
متن کاملPlasma catecholamines during exercise-induced bronchoconstriction in bronchial asthma.
Plasma levels of adrenaline and noradrenaline during and after submaximal exercise in patients with bronchial asthma were investigated. Three groups were studied comprising 10 patients with exercise-induced bronchoconstriction (EIB), 10 asthmatic patients without EIB and four normal control subjects. Plasma catecholamines were measured at rest, at the end of exercise, and five and 15 minutes af...
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ژورنال
عنوان ژورنال: BMJ
سال: 1985
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.290.6464.267