ISSN:
1365-2222
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Medicine
Notes:
Sera of ninety-one workers with respiratory symptoms related to occupational exposure to toluene diisocyanate (TDI) were tested by a solid phase radioimmunoassay using polyvinyl plates, in an attempt to demonstrate specific IgG antibodies to a conjugate of TDI with human serum albumin (TDI-HSA). Different conjugates were prepared. In our radioimmunoassay a TDI-HSA 1600 (1600 μg TDI/ mg HSA), obtained at alkaline pH with borate buffer, was used; this conjugate was immunologically reactive and did not contain protein macro-aggregates.No difference in percent of binding of radiolabelled anti-human IgG to TDI-HSA coated on plastic plates was found between exposed workers (asthmatic and non-asthmatic) and fifteen normal subjects. This may suggest that either TDI-induced bronchial asthma is not mediated by IgG antibodies, or TDI-HSA conjugate is unsuitable to be detected by anti-isocyanate IgG.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2222.1983.tb02570.x
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