Estimating allergenicity of latex gloves using Hev b 1 and hevamine

M. F. Lee, Miau-Yaun Wang, J. L. Han, S. J. Lin, J. J. Tsai, Y. H. Chen

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Background: Latex allergy continues to be an increasingly serious occupational health problem in Taiwan, where it affects approximately 6.8% to 12% of health care workers. Contrasting with reports from western countries, Hev b 1 and hevamine, and not Hev b 3, 5 or 6.02, are the major latex allergens among health care workers in Taiwan. This study aimed at evaluating the allergenicity of 30 brands of commercially available medical latex gloves in Taiwan in 2007. Methods: Residual Hev b 1 and hevamine from the gloves were measured by inhibition enzyme-linked immunosorbent assay using polyclonal antibodies against purified recombinant Hev b 1 and hevamine. The results were compared to those achieved with quantification of residual total extractable proteins and skin prick testing. Results: The residual extractable protein levels in 30 medical gloves all conformed to United States Food and Drug Administration regulations. All the gloves except one yielded strong skin prick reactions in latex-allergic individuals. The only brand of gloves that consistently produced no skin prick reactions in latex-allergic individuals contained the lowest residual levels of Hev b 1 (0.60 ng/g) and hevamine (0.07 μg/g). Conclusions: Our results suggest that the measurement of residual extractable total proteins is not sufficient to assess the allergenicity of latex gloves and that Hev b 1 and hevamine may be used as indicator allergens in areas where they are major latex allergens, such as Taiwan.

Original languageEnglish
Pages (from-to)499-505
Number of pages7
JournalJournal of Investigational Allergology and Clinical Immunology
Volume20
Issue number6
Publication statusPublished - 2010 Dec 20

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Latex
Taiwan
Allergens
Skin
Latex Hypersensitivity
Delivery of Health Care
Proteins
Drug and Narcotic Control
Occupational Health
United States Food and Drug Administration
hevamine
Enzyme-Linked Immunosorbent Assay
Antibodies

All Science Journal Classification (ASJC) codes

  • Immunology and Allergy
  • Immunology

Cite this

Lee, M. F. ; Wang, Miau-Yaun ; Han, J. L. ; Lin, S. J. ; Tsai, J. J. ; Chen, Y. H. / Estimating allergenicity of latex gloves using Hev b 1 and hevamine. In: Journal of Investigational Allergology and Clinical Immunology. 2010 ; Vol. 20, No. 6. pp. 499-505.
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Estimating allergenicity of latex gloves using Hev b 1 and hevamine. / Lee, M. F.; Wang, Miau-Yaun; Han, J. L.; Lin, S. J.; Tsai, J. J.; Chen, Y. H.

In: Journal of Investigational Allergology and Clinical Immunology, Vol. 20, No. 6, 20.12.2010, p. 499-505.

Research output: Contribution to journalArticle

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N2 - Background: Latex allergy continues to be an increasingly serious occupational health problem in Taiwan, where it affects approximately 6.8% to 12% of health care workers. Contrasting with reports from western countries, Hev b 1 and hevamine, and not Hev b 3, 5 or 6.02, are the major latex allergens among health care workers in Taiwan. This study aimed at evaluating the allergenicity of 30 brands of commercially available medical latex gloves in Taiwan in 2007. Methods: Residual Hev b 1 and hevamine from the gloves were measured by inhibition enzyme-linked immunosorbent assay using polyclonal antibodies against purified recombinant Hev b 1 and hevamine. The results were compared to those achieved with quantification of residual total extractable proteins and skin prick testing. Results: The residual extractable protein levels in 30 medical gloves all conformed to United States Food and Drug Administration regulations. All the gloves except one yielded strong skin prick reactions in latex-allergic individuals. The only brand of gloves that consistently produced no skin prick reactions in latex-allergic individuals contained the lowest residual levels of Hev b 1 (0.60 ng/g) and hevamine (0.07 μg/g). Conclusions: Our results suggest that the measurement of residual extractable total proteins is not sufficient to assess the allergenicity of latex gloves and that Hev b 1 and hevamine may be used as indicator allergens in areas where they are major latex allergens, such as Taiwan.

AB - Background: Latex allergy continues to be an increasingly serious occupational health problem in Taiwan, where it affects approximately 6.8% to 12% of health care workers. Contrasting with reports from western countries, Hev b 1 and hevamine, and not Hev b 3, 5 or 6.02, are the major latex allergens among health care workers in Taiwan. This study aimed at evaluating the allergenicity of 30 brands of commercially available medical latex gloves in Taiwan in 2007. Methods: Residual Hev b 1 and hevamine from the gloves were measured by inhibition enzyme-linked immunosorbent assay using polyclonal antibodies against purified recombinant Hev b 1 and hevamine. The results were compared to those achieved with quantification of residual total extractable proteins and skin prick testing. Results: The residual extractable protein levels in 30 medical gloves all conformed to United States Food and Drug Administration regulations. All the gloves except one yielded strong skin prick reactions in latex-allergic individuals. The only brand of gloves that consistently produced no skin prick reactions in latex-allergic individuals contained the lowest residual levels of Hev b 1 (0.60 ng/g) and hevamine (0.07 μg/g). Conclusions: Our results suggest that the measurement of residual extractable total proteins is not sufficient to assess the allergenicity of latex gloves and that Hev b 1 and hevamine may be used as indicator allergens in areas where they are major latex allergens, such as Taiwan.

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