Occupational Asthma Reference

Wittczak T, Gorski P, Allergic conditions for diseases of the respiratory tract from occupational exposure to acid anhydrides, Med Pr, 1997;48:687-694,

Keywords: Poland, review, anhydride, asthma, antibody, hapten, IgE, TMA, IgG

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Pawel Gorski, University of Lodz, Poland Pawel Gorski

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Acid anhydrides are highly reactive, low molecular weight compounds that are used widely in industry. Work-related exposure to this group of substances may cause occupational asthma. Because of low molecular weight, these compounds are not able to induce antibody responses without conjugating with human proteins. Acid anhydrides may act as haptens when conjugated with human serum albumin (HSA). The induction mechanism of immediate and late bronchial hyperresponsiveness to acid anhydrides appears to be at least partly mediated by IgE antibodies. Other clinical syndromes, which may be caused by acid anhydrides such as pulmonary disease-anemia (PDA), and late respiratory systemic syndrome (LRSS) associated with TMA exposure, appear to be associated with IgG antibodies to TMA as well as with IgE. Significant cross-reaction occurs between different compounds of this group, particularly regarding IgE antibodies. As inhalational exposure to acid anhydrides may result in serious pulmonary disease, adequate protection of potentially exposed workers or their removal, if affected, from exposure is essential.

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