Western Red Cedar Dust

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Known Synonyms

Thuja plicata
Western red cedar
Occupational asthma due to Western red cedar dust is a very well recognised cause of occupational asthma and affects 4-13.5% of the exposed population. 

It has been shown to be caused by plicatic acid (thuja plicata), a low molecular weight compound present in the wood. 

References for: Western Red Cedar Dust See published papers on "Western Red Cedar Dust" from this website.
Haz-Map information on: Western Red Cedar Dust See information on "Western Red Cedar Dust" from the HazMap (Information on Hazardous Chemicals and Occupational Diseases) website.

Oasys Notifications for Western Red Cedar Dust

The Oasys Audit scheme started midway through 2010 and collects agents typed in through the Oasys program. The years before 2010 show old data entered during 2010 or later and are likely to have many fewer notifications. We expect Oasys to become more widely adopted as time goes by so increasing notifications does not necessarily mean an increasing problem.

Occupational asthma notifications to the Oasys Audit Scheme for Western Red Cedar Dust

Selected References for Western Red Cedar Dust

Abstract Available for Sputum eosinophils and exhaled nitric oxide during late asthmatic reaction in patients with western red cedar asthma Obata H, Dittrick M, Chan H, ChanYeung M, Sputum eosinophils and exhaled nitric oxide during late asthmatic reaction in patients with western red cedar asthma, Eur Respir J, 1999;13:489-495,
Moira Chan-Yeung, University of Hong Kong, an author of 'Sputum eosinophils and exhaled nitric oxide during late asthmatic reaction in patients with western red cedar asthma'

Abstract Available for Longitudinal decline in lung function in patients with occupational asthma due to western red cedar Lin FJ, DimichWard H, ChanYeung M, Longitudinal decline in lung function in patients with occupational asthma due to western red cedar, Occup Environ Med, 1996;53:753-756,
Moira Chan-Yeung, University of Hong Kong, an author of 'Longitudinal decline in lung function in patients with occupational asthma due to western red cedar'

Abstract Available for Mechanism of occupational asthma due to western red cedar (Thuja plicata) ChanYeung M, Mechanism of occupational asthma due to western red cedar (Thuja plicata), Am J Industr Med, 1994;25:13-18,
Moira Chan-Yeung, University of Hong Kong, an author of 'Mechanism of occupational asthma due to western red cedar (Thuja plicata)'

Abstract Available for Follow-up study of 232 patients with occupational asthma caused by western red cedar (Thuja plicata) ChanYeung M, Maclean L, Paggiaro PL, Follow-up study of 232 patients with occupational asthma caused by western red cedar (Thuja plicata), J Allergy Clin Immunol, 1987;79:792-796,
Moira Chan-Yeung, University of Hong Kong, an author of 'Follow-up study of 232 patients with occupational asthma caused by western red cedar (Thuja plicata)' Pierluigi Paggiaro, Ospedale Cisanello, Pisa, Italy, an author of 'Follow-up study of 232 patients with occupational asthma caused by western red cedar (Thuja plicata)'

Abstract Available for Plicatic Acid-Specific Ige And Nonspecific Bronchial Hyper-responsiveness In Western Red-Cedar Workers Vedal S, ChanYeung M, Enarson DA et al, Plicatic Acid-Specific Ige And Nonspecific Bronchial Hyper-responsiveness In Western Red-Cedar Workers, J Allergy Clin Immunol, 1986;78:1103-1109,
Moira Chan-Yeung, University of Hong Kong, an author of 'Plicatic Acid-Specific Ige And Nonspecific Bronchial Hyper-responsiveness In Western Red-Cedar Workers'

Abstract Available for Clinical features and natural history of occupational asthma due to western red Cedar (Thuja plicata) ChanYeung M, Lam S, Koener S, Clinical features and natural history of occupational asthma due to western red Cedar (Thuja plicata), Am J Med, 1982;72:411-415,
Moira Chan-Yeung, University of Hong Kong, an author of 'Clinical features and natural history of occupational asthma due to western red Cedar (Thuja plicata)'

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