Occupational agriculture organic dust exposure and its relationship to asthma and airway inflammation in adults
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Occupational agriculture organic dust exposure and its relationship to asthma and airway inflammation in adults

Filetype[PDF-122.54 KB]


English

Details:

  • Alternative Title:
    J Asthma
  • Personal Author:
  • Description:
    Objective

    Recent studies have made advances into understanding the complex agriculture work exposure environment in influencing asthma in adults. The objective of this study is to review studies of occupational agricultural exposures including dust, animal, and pesticide exposures with asthma in adult populations.

    Data Sources

    PubMed databases were searched for articles pertaining to farming, agriculture, asthma, occupational asthma, airway inflammation, respiratory disease, lung disease, pesticides and organic dust.

    Study Selections

    Studies chosen were published in or after 1999 that included adults and asthma and farming/agricultural work or agricultural exposures and airway inflammatory disease measurements.

    Results

    The data remains inconclusive. Several retrospective studies demonstrate agricultural work to be protective against asthma in adults, especially with increased farming exposure over time. In contrast, other studies find increased risk of asthma with farming exposures, especially for the non-atopic adult. Mechanistic and genetic studies have focused on defining the wide variety and abundance of microorganisms within these complex organic dusts that trigger several pattern recognition receptor pathways to modulate the hosts’ response.

    Conclusion

    Asthma risk depends on the interplay of genetic factors, gender, atopic predisposition, type of livestock, pesticide exposure, and magnitude and duration of exposure in the adult subject. Longer exposure to occupational farming is associated with decreased asthma risk. However, studies also suggest that agricultural work and multiple types of livestock are independent risk factors for developing asthma. Prospective and longitudinal studies focusing on genetic polymorphisms, objective assessments, and environmental sampling are needed to further delineate the influence of agriculture exposure in the adult worker.

  • Subjects:
  • Source:
  • Pubmed ID:
    26785925
  • Pubmed Central ID:
    PMC4946797
  • Document Type:
  • Funding:
  • Volume:
    53
  • Issue:
    5
  • Collection(s):
  • Main Document Checksum:
  • Download URL:
  • File Type:

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