Document Detail


Pulmonary disease in workers exposed to papain: clinico-physiological and immunological studies.
MedLine Citation:
PMID:  7460265     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Of the twenty-three employees at a pharmaceutical plant manufacturing a new product containing papain, twelve had respiratory symptoms of cough, wheezing, dyspnoea, or chest paint. Most were studied with in-depth interviews by a doctor, extensive pulmonary function tests, and immunoserological tests for IgE and precipitating antibodies specific for papain, as well as total IgE antibodies to common natural allergens. There were significant correlates (all P values < 0.05) between the presence of specific IgE antibodies to papain and decreases of FEV1, FEF75--85, TLC, RV, and response to bronchodilators as percentage change from baseline for all spirographic flow rates. Atopic workers developed pulmonary symptoms and antipapain antibodies significantly sooner after papain exposure than did the others. Duration of exposure had no effect on symptomatology, pulmonary function, or immunological response. However, those judged to have the greatest amount of dust exposure per work-day had significantly more pulmonary symptoms (P < 0.005). Papain produced lung diseases by acting as an inhalant allergen rather than a proteolytic enzyme. Papain is a potent sensitizer in humans for the production of respiratory disease. The pulmonary reactions, based on physiological data, seem to involve small airways, alveolar, and interstitial lung tissue in an inflammatory rather than destructive manner, and thus resemble bronchitis and interstitial lung disease rather than pulmonary emphysema or typical bronchial asthma.
Authors:
H S Novey; W J Keenan; R D Fairshter; I D Wells; A F Wilson; B D Culver
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical allergy     Volume:  10     ISSN:  0009-9090     ISO Abbreviation:  Clin. Allergy     Publication Date:  1980 Nov 
Date Detail:
Created Date:  1981-04-13     Completed Date:  1981-04-13     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0311172     Medline TA:  Clin Allergy     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  721-31     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Female
Forced Expiratory Flow Rates
Humans
Hypersensitivity, Immediate / immunology
Immunoglobulin E / biosynthesis
Male
Middle Aged
Occupational Diseases / chemically induced*,  immunology,  physiopathology
Papain / adverse effects*,  immunology
Radioallergosorbent Test
Respiratory Function Tests
Respiratory Hypersensitivity / etiology*,  immunology,  physiopathology
Smoking
Time Factors
Chemical
Reg. No./Substance:
37341-29-0/Immunoglobulin E; EC 3.4.22.2/Papain

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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