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Chemical culprit in 'popcorn worker's lung' identified
Date:8/31/2007

Researchers in the Netherlands have identified a chemical agent that may be a, if not the, culprit in bronchiolitis obliterans syndrome (BOS), or popcorn workers lung, a severe occupational lung disease first noted in 2001 among workers at an American plant that makes microwaveable popcorn.

The research, which examined a population of workers at a chemical plant that produced diacetyl (a key component of butter flavoring), was reported in the first issue for September of the American Journal of Respiratory and Critical Care Medicine, published by the American Thoracic Society.

Our study found a cluster of [previously undiagnosed] BOS cases in a diacetyl production plant, said lead author Frits G. B. G. J. van Rooy, M.D., of the Division of Environmental Epidemiology at the Universiteit Utrecht in the Netherlands. This supports the conclusion that an agent in the diacetyl production process has caused BOS.

Diacetyl was identified early on as a marker for exposure among popcorn workers. Its specific role, if any, however, in the development of BOS was not known. No cases of BOS had previously been identified outside of North America or in chemical production plants related to flavoring. By investigating the BOS status of former workers of the diacetyl plant, researchers hoped to determine whether there was a link between diacetyl exposure and the development of BOS.

With the help of the human resources department, Dr. van Rooy and colleagues traced 196 former workers who were still living and who had been employed at the diacetyl production plant between 1960 and 2003, when the plant closed. They identified 175 who consented to complete exposure and respiratory health questionnaires and undergo lung function tests and clinical assessments. Of the 102 process workers considered to be at the highest risk for exposure, researchers positively identified three cases of BOS, and later, a fourth, in a worker who had initially de
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Contact: Suzy Martin
smartin@thoracic.org
212-315-8631
American Thoracic Society
Source:Eurekalert

Page: 1 2

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