Clinical Process and Pulmonary Function of Workers Exposed to Dusts in Manufacturing Industries: Potential Biomarkers of Pneumoconiosis.
- Author:
Kyoung Ah KIM
1
;
Jung Wan KOO
;
Young LIM
;
Ji Hong KIM
;
Hwang Sin CHANG
;
Byung Young AHN
;
Young Man PARK
;
Chee Kyung CHUNG
Author Information
1. Catholic Institute of Industrial Medicine, College of Medicine, The Catholic University of Korea.
- Publication Type:Original Article
- MeSH:
Biological Markers*;
Dust*;
Early Diagnosis;
Gallium;
Humans;
Inhalation;
Interleukin-8;
Lung;
Macrophages;
Macrophages, Alveolar;
Monocytes;
Pneumoconiosis*;
Prognosis;
Pulmonary Diffusing Capacity;
Respiratory Function Tests;
Tumor Necrosis Factor-alpha
- From:Korean Journal of Occupational and Environmental Medicine
1998;10(4):450-462
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Alveolitis is believed to be a primary response after dust inhalation. Activated inflammatory cells by dust and their mediators are major participants in the evolution of pneumoconiosis. Therefore evaluation of degree of alveolitis is useful for assessing disease activity and estimating of prognosis in pneumoconiosis. This study focused on the workers with pneumoconiosis who are working and worked in manufacturing industries because the occupying fraction by them among total pneumoconioses patients in our country is increasing recently. In order to identify and validate biomarkers to early diagnosis and better predict for the suceptible workers, the release of tumor necrosis factor (TNF alpha ), interleukine-8 (IL-8), platelet-derived growth factor-AA(PDGF-AA) and transforming growth factor-beta TGF beta ) from alveolar macrophages and blood monocytes, their concentration in BAL (bronchoalveolar lavage) fluid, pulmonary function test and Gallium index of lung were performed on 25 patients with pneumoconiosis who worked in manufactory industries. The results of this study were as follows ; 1. No significant differences were demonstrated between large opacity group and small opacity group, however pulmonary diffusing capacity in large opacity group was significantly lower than that in small opacity group. 2. (67)Gallium index was significantly correlated with increase of category in pnemoconiosis(r=0.83, p<0.05). 3. Numbers of total cells (r=0.583, p<0.05) and alveolar macrophages (r=0.499, p<0.05) in BAL were significantly correlated with the category of pneumoconiosis. 4. Spontaneous (r=0.474, p<0.05) and LPS (r=0.463, p<0.05) stimulated release of TNF alpha from macrophage, IL-8 (r=0.464, p<0.05) and TGF beta r=0.460, p<0.05) in BAL fluid were significantly correlated with category of pneumoconiosis. 5. Significantly positive correlation was demonstrated between spontaneous (r=0.443, p<0.05) and LPS (r=0.573, p<0.05) stimulated release of TNF alpha with the category of pneumoconiosis. 6. Release of TNF alpha from alveolar macrophages(r=0.61, p<0.05) and blood monocytes (r=0.48, p<0.05), IL-8 concentration in BAL fluid (r=0.52, p<0.05) and (67)Gallium index (r=0.53, p<0.05) were consider to sensitive biomarkers for alveolitis by dust.
