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β受体阻滞剂对正常人和哮喘患者通气功能影响的意义。

Significance of effect of beta blockade on ventilatory function in normal and asthmatic subjects.

作者信息

Jones R S

出版信息

Thorax. 1972 Sep;27(5):572-6. doi: 10.1136/thx.27.5.572.

Abstract

The lability index was examined in 45 normal subjects between 17 and 45 years and also in six patients with asthma, five with a history of asthma in childhood but no clinical attacks, and three with hay fever. The measurements were repeated after β blockade with propranolol. Fifteen per cent of the normal subjects exhibited a degree of lability after propranolol which has been previously found only in asthma. It is suggested that a constrictor mechanism exists in normal subjects on exercise but that β receptor activity protects them from bronchiolar constriction; post-exercise bronchoconstriction in the asthmatic may be explained in terms of this mechanism. It is also suggested that a proportion of `normal' subjects are potentially more labile than the remainder of the population and that it is these who may develop clinical asthma if they also happen to be atopic subjects.

摘要

对45名年龄在17至45岁之间的正常受试者以及6名哮喘患者、5名有儿童哮喘病史但无临床发作的患者和3名花粉热患者进行了易激性指数检测。用普萘洛尔进行β受体阻断后重复测量。15%的正常受试者在使用普萘洛尔后出现了一定程度的易激性,这种情况以前仅在哮喘患者中发现。这表明正常受试者在运动时存在一种收缩机制,但β受体活性可保护他们免受细支气管收缩的影响;哮喘患者运动后支气管收缩可以用这种机制来解释。还表明一部分“正常”受试者可能比其他人群更易激,而如果这些人恰好是特应性受试者,他们可能会发展为临床哮喘。

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本文引用的文献

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Effect of propranolol on ventilatory function.普萘洛尔对通气功能的影响。
Am J Cardiol. 1966 Sep;18(3):473-5. doi: 10.1016/0002-9149(66)90072-5.
5
Exercise-induced asthma.运动诱发性哮喘
Br Med J. 1969 Sep 6;3(5670):556-8. doi: 10.1136/bmj.3.5670.556.
6
Resistance to breathing during exercise-induced asthma attacks.运动诱发哮喘发作时的呼吸阻力。
Am Rev Respir Dis. 1970 Jun;101(6):885-96. doi: 10.1164/arrd.1970.101.6.885.
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Exercise-induced asthma.运动诱发性哮喘
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