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Updated: Jul 13, 2026
11:54
Absorption of Nasal and Bronchial Fluids: Precision Sampling of the Human Respiratory Mucosa and Laboratory Processing of Samples
Published on: January 21, 2018
Nasal symptoms and pathophysiology in farmers
M Ahman1, M Holmström, B Kolmodin-Hedman
1Department of Occupational Health, Karolinska Hospital, Stockholm, Sweden. mats.ahman@smd.sll.se
Summary
Farmers experience more upper airway issues, including smell impairment and nasal polyps, compared to controls. Occupational exposure to allergens and irritants likely contributes to these nasal findings in agricultural workers.
Area of Science:
- Occupational health
- Environmental medicine
- Respiratory medicine
Background:
- Farmers report increased lower airway diseases.
- Upper airway health in farmers is understudied.
Purpose of the Study:
- To investigate upper airway problems in farmers.
- Assess prevalence of nasal symptoms and pathologies.
Main Methods:
- Questionnaires, skin-prick tests, spirometry, nasal inspection, acoustic rhinometry, olfactory threshold tests.
- Nasal lavage (NAL) analysis for eosinophil cationic protein (ECP), myeloperoxidase (MPO), and albumin.
- Study included dairy farmers, pig farmers, grain farmers, and controls.
Main Results:
- Farmers reported smell impairment and work-related lower airway symptoms.
- Higher prevalence of nasal polyps and nasal mucosa hyperemia in farmers.
- Elevated MPO levels in NAL (dairy/pig farmers), increased nasal mucosa swelling, and lower olfactory thresholds (grain farmers).
Conclusions:
- Farmers exhibit more nasal mucosa pathologies, suggesting occupational allergen/irritant effects.
- Further research is needed to identify specific environmental factors causing these nasal issues.
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