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Airway inflammation in cement production workers
Anne Kristin M Fell1, Liv Ingunn B Sikkeland, Martin Veel Svendsen
1Department of Occupational and Environmental Medicine, Telemark Hospital, N-3710 Skien, Norway. anne-kristin.fell@sthf.no
Occupational and Environmental Medicine
|October 27, 2009
Summary
Cement aerosol exposure significantly increases airway neutrophils and interleukin-1beta levels in workers, indicating potential for airway inflammation even below occupational limits.
Area of Science:
- Occupational Health
- Environmental Medicine
- Pulmonary Medicine
Background:
- Cement production workers face occupational exposure to aerosols.
- Aerosol exposure is linked to increased airway disease morbidity.
- Understanding the inflammatory response to cement aerosols is crucial for worker health.
Purpose of the Study:
- To compare inflammatory markers in induced sputum of cement workers during exposed and unexposed periods.
- To compare inflammatory markers between cement workers and reference groups.
- To assess the impact of cement aerosol exposure on airway inflammation.
Main Methods:
- 35 non-smoking cement production workers underwent sputum induction and spirometry during exposed and unexposed periods.
- Comparison groups included 15 low-exposed office workers and 39 non-exposed workers.
- Differential cell counts and soluble inflammatory markers (e.g., IL-1beta) were analyzed.
Main Results:
- Cement workers showed a significantly higher percentage of airway neutrophils during exposure (51%) compared to unexposed periods (38%) and external references (30%).
- Median interleukin-1beta concentration was elevated in exposed workers compared to both office workers and external references.
- Observed aerosol concentrations were below Norwegian occupational limits.
Conclusions:
- Cement aerosol exposure, even below Norwegian occupational limits, leads to increased neutrophils and elevated IL-1beta in airways.
- These findings suggest that cement aerosol exposure can cause significant airway inflammation.
- The study highlights the need for monitoring and potential mitigation strategies for cement-related respiratory issues.
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