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Pulmonary inflammation in foundry workers.
Kirsi Koskela1, Panu Oksa, Riitta Sauni
1From the Finnish Institute of Occupational Health (Dr Koskela, Dr Oksa, Dr Sauni, Dr Linnainmaa, Ms Toivio, Dr Luukkonen, and Dr Uitti); The Out-patient Clinic of Occupational Medicine (Dr Koskela and Dr Uitti), Tampere University Hospital; and The Immunopharmacology Research Group (Dr Moilanen, Drs Lehtimäki and Nieminen), University of Tampere School of Medicine and Tampere University Hospital, Finland.
Foundry work dust exposure is linked to airway inflammation. Higher dust exposure correlated with increased alveolar nitric oxide (NO) and specific inflammatory markers in serum.
Area of Science:
- Occupational Health
- Environmental Medicine
- Pulmonary Medicine
Background:
- Foundry work involves significant exposure to dusts and respirable quartz.
- Airway inflammation is a potential health consequence of occupational dust exposure.
Purpose of the Study:
- To investigate the association between cumulative dust exposure in foundry workers and markers of airway inflammation.
- To analyze fractionated exhaled nitric oxide (NO) and inflammatory markers in exhaled breath condensate and serum.
Main Methods:
- Studied 476 foundry workers (dust-exposed and nonexposed).
- Assessed cumulative exposure to dusts and respirable quartz.
- Measured bronchial and alveolar NO, and inflammatory markers (serum and exhaled breath condensate).
Main Results:
- Increased alveolar NO, serum C-reactive protein, and interleukin-8 were associated with higher cumulative dust exposure after adjusting for smoking.
- Non-exposed referents showed higher serum myeloperoxidase, bronchial NO output, and 8-isoprostane levels compared to exposed groups.
Conclusions:
- Cumulative dust exposure in foundry work is associated with systemic and alveolar inflammation.
- Foundry dust exposure may contribute to inflammatory responses in the airways and systemically.
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