Abstract:
BACKGROUND:We evaluated particulate matter in combined induced sputum (IS) and oxidation in exhaled breath condensate (EBC) to test whether underlying inflammatory changes are present in asymptomatic welders. METHODS:Thirty welders from the Israel Defense Forces exposed to aluminum/iron (Group 1) or to cadmium/chromium/iron/lead/nickel (Group 2, N = 16) and 27 non-exposed administrators were studied. IS was recovered, particle size distribution, hydrogen peroxide and pH were measured, and exhaled breath condensate was collected. RESULTS:Group 2 had a higher % neutrophils than all other participants (P = 0.0001) and a higher % particles >2 microm in diameter (P = 0.0017). Percent particles and years of exposure highly correlated (P = 0.051). All welders EBC samples had higher concentrations of hydrogen peroxide than controls (P = 0.0001). pH was lower only for Group 2 (P = 0.0001). CONCLUSIONS:Combined IS and EBC measurements detect underlying inflammation in airways of asymptomatic welders. It emerged that airway inflammation is present in asymptomatic welders, and that the particle burden, inflammatory cells, and level of oxidative stress are a function of the type and the duration of welding. Am. J. Ind. Med. 51:503-511, 2008.
journal_name
Am J Ind Medjournal_title
American journal of industrial medicineauthors
Fireman E,Lerman Y,Stark M,Schwartz Y,Ganor E,Grinberg N,Frimer R,Landau DA,Zilberberg M,Barenboim E,Jacovovitz Rdoi
10.1002/ajim.20586subject
Has Abstractpub_date
2008-07-01 00:00:00pages
503-11issue
7eissn
0271-3586issn
1097-0274journal_volume
51pub_type
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