Navigation Links
Chemical culprit in 'popcorn worker's lung' identified

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 declined to participate in the research.

This is the first study where cases of BOS were found in a chemical plant producing diacetyl, wrote Dr. van Rooy.

While the researchers were unable to rule out contributions of other chemicals to the development of BOS, the study significantly narrows the field of suspects to diacetyl and the components and byproducts of its manufacturing process.

The spectrum of exposures is much smaller in this production plant compared with the popcorn processing plants where a wide range of chemicals was identified, the researchers wrote. This population-based survey establishes the presence of BOS, or popcorn workers lung, in chemical workers manufacturing a flavoring ingredient with exposures to diacetyl, acetoin and acetyldehyde. Any or all of these exposures may contribute to the risk of this emerging occupational disease.

The novel finding of four cases of BOS in workers at the diacetyl plant has important implications for practicing physicians and public health officials.

None of the four cases had been recognized as bronchiolitis obliterans or as occupationally related, wrote Kathleen Kreiss, M.D., in the accompanying editorial in the same issue of the journal. To identify flavoring-related bronchiolitis obliterans, physicians need to consider the diagnosis, she noted. Dr. Kreiss, of the Field Studies Branch of the National Institute for Occupational Safety and Health, was one of the first investigators on the scene when popcorn workers lung arose as a public health issue.

Furthermore, she writes, the collective evidence for diacetyl causing a respiratory hazard supports action to minimize exposure to diacetyl, even if contributions by other flavoring chemicals exist.


Contact: Suzy Martin
American Thoracic Society

Related medicine news :

1. Biochemical Markers Might Help Predict Heart Problems
2. Chemical in Gila monsters saliva yields Alzheimer drug
3. Chemical found in plants may be the treatment for leukemia
4. Chemicals in clear plastics can cause learning difficulties
5. Harmful chemicals change the genetic response to hormone estrogen
6. Quitting Smoking Made Easy By Track Of New Chemical
7. Brain Chemical Identified For Drug Dependent Behavior
8. Toxic chemicals found in domestic products poisoning newborn babies
9. Block Immune System Chemical For Treating Asthma
10. Chest Pain Can Be Identified By New Tracer Chemical 30 Hours After Pain Relief
11. Cancer Causing Proteins Trigger Abnormal Biochemical Reactions In Cells
Post Your Comments:
(Date:11/25/2015)... , ... November 25, 2015 , ... ... has been recognized once again for its stellar workplace culture with the company’s ... , Medical Solutions’ Cincinnati office was named a finalist in Cincinnati ...
(Date:11/25/2015)... ... November 26, 2015 , ... ... European Union (EU), ANDI Pan African Centres of Excellence, and public R&D institutions, ... (UNON) for the opening of the 5th African Network for Drugs and Diagnostics ...
(Date:11/25/2015)... Angeles, CA (PRWEB) , ... November 25, 2015 , ... ... da Vinci surgical robot is being more and more widely heralded as a breakthrough ... assisted da Vinci method has over traditional laparoscopic surgery is that it can greatly ...
(Date:11/25/2015)... ... ... On November 25, 2015, officials of Narconon Arrowhead , the drug ... a new cutting edge recovery program that has been 50 years in the making. ... individuals with the purpose to free addicts from the symptoms and negative behaviors of ...
(Date:11/25/2015)... ... November 25, 2015 , ... On November 23rd 2015 Cozy ... personal heating products business. Cozy Products explains what this means for business moving ... well with the Cozy Products business model: to sell personal heaters that reduce energy ...
Breaking Medicine News(10 mins):
(Date:11/25/2015)... , Nov. 25, 2015 USP 800 ... drug preparations (e.g. pharmacists, pharmacy technicians, nurses, physicians, ... technicians). The chapter also covers all entities which ... pharmacies, hospitals, other healthcare institutions, patient treatment clinics, ... --> --> What is ...
(Date:11/25/2015)... Asia -based venture ... and the New Investors will make a direct equity ... private placement. The financing will help IOPtima to continue ... in the treatment of glaucoma, as well as to ... system with the U.S. Food and Drug Administration, commencing ...
(Date:11/25/2015)... , November 25, 2015 Developmental, commercial, ... in boosting the profitability of pharmaceutical products, says ... and regulatory/legal strategies all play a key ... says GBI Research . --> ... a key role in boosting the profitability of pharmaceutical products, ...
Breaking Medicine Technology: