| Autor: |
N, Murgia, G, Muzi, M, Dell' Omo, P, Montuschi, D, Melchiorri, G, Ciabattoni, E P, Abbritti, N, Orazi, I E, Sapia, G, Abbritti |
| Rok vydání: |
2007 |
| Předmět: |
|
| Zdroj: |
International journal of immunopathology and pharmacology. 19 |
| ISSN: |
0394-6320 |
| Popis: |
Occupational exposure to chromium may cause airway inflammation and bronchial asthma. In this study we investigated the effect of chromium on the respiratory tract of exposed and non-exposed electroplating workers using spirometry and analysis of induced sputum (IS), exhaled breath condensate (EBC) and nasal lavage fluid (NLF). In both groups spirometry was normal; chromium in induced sputum was higher in exposed workers (7.90 +/- 0.855 microg/L, vs 1.78 +/- 0.075 microg/L; p0.001); no significant difference was found in induced sputum cellularity. Median nitrite concentration in EBC was significantly higher in exposed subjects (4.35 micromol/L, 5 degrees -95 degrees percentile: 1.88-10.13 vs 0.11 micromol/L, 5-95 percentile: 0-0.72) (p0.001). IL-6 and TNF-alpha were not detectable in EBC. Median IL-6 concentration in nasal lavage fluid was higher in exposed workers (5.72 pg/ml, 5-95 percentile: 0-65.25 pg/ml vs 0.28 pg/ml, 5-95 percentile: 0-1.7 pg/ml) (p0.01). No differences in Eosinophil Cationic Protein concentration were found. TNF-alpha was not detectable in NLF. Chromium in induced sputum correlated with nitrites in EBC. For the first time three non-invasive methods were used to assess changes in respiratory tract in workers exposed to chromium. The results suggest chromium exerts an inflammatory/irritative action on airways. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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