Unexpected Smoking-Linked High MMP-9 in Induced Sputum of Hazardous Dust-Exposed Workers

We investigated whether metalloproteinase-9 (MMP-9) values in induced sputum (IS) and pulmonary function tests can serve as a marker of damage and intensity of exposure to hazardous dust. Thirty-nine factory employees (28 workers exposed to metal particles and 11 supposedly nonexposed office workers...

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Main Authors: Yehuda Lerman, Abraham Moscovich, Elizabeth Fireman
Format: Article
Language:English
Published: Wiley 2006-01-01
Series:Mediators of Inflammation
Online Access:http://dx.doi.org/10.1155/MI/2006/24827
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author Yehuda Lerman
Abraham Moscovich
Elizabeth Fireman
author_facet Yehuda Lerman
Abraham Moscovich
Elizabeth Fireman
author_sort Yehuda Lerman
collection DOAJ
description We investigated whether metalloproteinase-9 (MMP-9) values in induced sputum (IS) and pulmonary function tests can serve as a marker of damage and intensity of exposure to hazardous dust. Thirty-nine factory employees (28 workers exposed to metal particles and 11 supposedly nonexposed office workers) underwent IS induction. Samples were processed by conventional methods within 2 hours. The proportion of particles with diameters of 0–2 μ in IS samples was significantly higher in nonexposed than exposed workers and in smoker compared to nonsmoker workers. MMP-9 and TIMP-1 levels were similar for both groups. A linear regression model for MMP-9 based on exposure, smoking habits, and proportion of particles <5 μ revealed a positive correlation between each of the explanatory variables and MMP-9 values. MMP-9 may serve as a marker for pulmonary injury.
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spelling doaj-art-1c4044d8423d400d8e4479fabb9f80dd2025-02-03T05:59:34ZengWileyMediators of Inflammation0962-93511466-18612006-01-01200610.1155/MI/2006/2482724827Unexpected Smoking-Linked High MMP-9 in Induced Sputum of Hazardous Dust-Exposed WorkersYehuda Lerman0Abraham Moscovich1Elizabeth Fireman2Occupational and Environmental Health Center, Clalit Health Services, Tel-Aviv, IsraelOccupational and Environmental Health Center, Clalit Health Services, Tel-Aviv, IsraelThe Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 69978, IsraelWe investigated whether metalloproteinase-9 (MMP-9) values in induced sputum (IS) and pulmonary function tests can serve as a marker of damage and intensity of exposure to hazardous dust. Thirty-nine factory employees (28 workers exposed to metal particles and 11 supposedly nonexposed office workers) underwent IS induction. Samples were processed by conventional methods within 2 hours. The proportion of particles with diameters of 0–2 μ in IS samples was significantly higher in nonexposed than exposed workers and in smoker compared to nonsmoker workers. MMP-9 and TIMP-1 levels were similar for both groups. A linear regression model for MMP-9 based on exposure, smoking habits, and proportion of particles <5 μ revealed a positive correlation between each of the explanatory variables and MMP-9 values. MMP-9 may serve as a marker for pulmonary injury.http://dx.doi.org/10.1155/MI/2006/24827
spellingShingle Yehuda Lerman
Abraham Moscovich
Elizabeth Fireman
Unexpected Smoking-Linked High MMP-9 in Induced Sputum of Hazardous Dust-Exposed Workers
Mediators of Inflammation
title Unexpected Smoking-Linked High MMP-9 in Induced Sputum of Hazardous Dust-Exposed Workers
title_full Unexpected Smoking-Linked High MMP-9 in Induced Sputum of Hazardous Dust-Exposed Workers
title_fullStr Unexpected Smoking-Linked High MMP-9 in Induced Sputum of Hazardous Dust-Exposed Workers
title_full_unstemmed Unexpected Smoking-Linked High MMP-9 in Induced Sputum of Hazardous Dust-Exposed Workers
title_short Unexpected Smoking-Linked High MMP-9 in Induced Sputum of Hazardous Dust-Exposed Workers
title_sort unexpected smoking linked high mmp 9 in induced sputum of hazardous dust exposed workers
url http://dx.doi.org/10.1155/MI/2006/24827
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AT abrahammoscovich unexpectedsmokinglinkedhighmmp9ininducedsputumofhazardousdustexposedworkers
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