Occupational Asthma Reference
|
Siracusa A, Vecchiarelli A, Brugnami G, Marabini A, Felicioni D, Severini C,
Changes in interleukin-1 and tumor necrosis factor production by peripheral blood monocytes after specific bronchoprovocation test in occupational asthma,
Am Rev Respir Dis,
1992;146:408-412,
|
|
|
Keywords: oa, ch, methods
Known Authors
If you would like to become a known author and have your picture displayed along with your papers then please get in touch from the contact page. Known authors can choose to receive emails when their papers receive comments.
Abstract
The pathogenetic mechanisms of occupational asthma (OA) due to low-molecular-weight compounds have been poorly defined, and further studies are required to clarify the role of immunologic mechanisms in OA. Until now cellular mechanisms have been less investigated than humoral ones. We have evaluated interleukin-1 (IL-1) and tumor necrosis factor (TNF) production by peripheral blood monocytes (PBM), and peripheral T-cell subpopulations in 22 subjects with possible OA before and after specific bronchoprovocation test (SBPT). After SBPT, three subjects had an immediate reaction, seven a late reaction, and two a dual reaction. Ten subjects had no asthmatic reaction to SBPT. Spontaneous release of IL-1 from PBM did not change significantly after SBPT. TNF activity was increased 48 h after SBPT in immediate reactions and 72 h after SBPT in late-dual reactions. These results suggest that exposure to occupational agents may induce activation of PBM with increased spontaneous release of cytokines, such as TNF
Full Text
Full text of this reference not available
Please Log In or Register to add the full text to this reference
Comments
Please sign in or register to add your thoughts.