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Aetiological agents in occupational asthma

M Chan-Yeung1, J L Malo

  • 1Dept of Medicine, Vancouver General Hospital, Canada.

The European Respiratory Journal
|February 1, 1994
PubMed
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Occupational asthma, a leading lung disease, is caused by around 200 workplace agents. These agents trigger asthma through immunological or non-immunological pathways, with some mechanisms still unidentified.

Area of Science:

  • Occupational Medicine
  • Pulmonology
  • Immunology

Background:

  • Occupational asthma is the most common occupational lung disease globally.
  • Approximately 200 agents are known to cause occupational asthma in the workplace.
  • Understanding the mechanisms of occupational asthma is crucial for prevention and treatment.

Purpose of the Study:

  • To review agents causing occupational asthma.
  • To categorize these agents based on their mechanism of action (immunological vs. non-immunological).
  • To provide a compendium of etiological agents responsible for occupational asthma.

Main Methods:

  • Literature review of agents causing occupational asthma.
  • Classification of agents based on immunological (IgE-dependent and non-IgE-dependent) and non-immunological mechanisms.

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  • Compilation of a table detailing etiological agents.

    • Main Results:

    • Occupational asthma is prevalent, with 200 implicated agents.
    • Agents are classified into immunological and non-immunological categories.
    • Some immunological mechanisms, particularly non-IgE dependent, remain unidentified, while irritant-induced asthma (RADS) is a key non-immunological example.

    Conclusions:

    • Occupational asthma is a significant health concern with diverse causative agents.
    • Further research is needed to elucidate the immunological mechanisms of certain occupational asthma triggers.
    • Accurate classification aids in understanding and managing occupational asthma.