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[Cigarette smoke and bronchial hypersensitivity].

I Cerveri1, C Bruschi, M C Zoia

  • 1Istituto di Tisiologia e Mal. App. Resp., Università di Pavia, IRCCS.

Giornale Italiano Di Medicina Del Lavoro
|May 1, 1989
PubMed
Summary
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Cigarette smoking increases airway hyperresponsiveness, even in healthy individuals. This effect is dose-dependent and diminishes after smoking cessation, suggesting a link to COPD development.

Area of Science:

  • Pulmonary Medicine
  • Respiratory Physiology

Context:

  • Chronic Obstructive Pulmonary Disease (COPD) is a significant health concern.
  • Intrinsic factors influencing COPD onset are not fully understood.
  • Bronchial hyperresponsiveness is a potential, yet ill-defined, contributing factor.

Purpose:

  • To investigate the relationship between cigarette smoking and bronchial hyperresponsiveness.
  • To determine if smoking-induced hyperresponsiveness is dose-dependent.
  • To assess the reversibility of smoking's effect on airway responsiveness.

Summary:

  • This cross-sectional study found that cigarette smoking significantly increases bronchial hyperresponsiveness in asymptomatic individuals with normal airway caliber.
  • The observed increase in airway responsiveness was dose-dependent, correlating with the number of cigarettes smoked daily.

Related Experiment Videos

  • Bronchial hyperresponsiveness in former smokers approached that of non-smokers, with the effect diminishing the longer smoking cessation was maintained.

    • Impact:

    • Provides evidence for a direct link between smoking and increased airway responsiveness.
    • Highlights smoking as a modifiable factor influencing respiratory health.
    • Suggests that smoking cessation can mitigate airway hyperresponsiveness, potentially reducing COPD risk.