Abstract
The authors explored the activation of the complement system produced by a nonionic organic iodine compound, namely iopamidol, which is proposed as a contrast medium for radiographic examination by intravenous and intra-arterial injection. The study was conducted in vitro versus established ionic contrasts (diatrizoate, iothalamate, acetrizoate) and a nonionic compound (metrizamide).
The adopted experimental model was the immunohemolytic detector system, in which the immune complex consisted of goat erythrocytes sensitized with the corresponding antibody (hemolysin), and complement (C′) was supplied by guinea pig serum. All the products caused complement activation.
The results show that nonionic contrast media produce less activation of the complement system than the traditional ionic contrast. Thus the use of nonionic contrast for radiological procedures necessitating the introduction of contrast material into the blood compartment would imply a reduced risk of anaphylactoid reactions.
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© 1983 Springer-Verlag
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Tirone, P., Boldrini, E. (1983). Effects of Radiographic Contrast Media on the Serum Complement System. In: Chambers, C.M., Chambers, P.L., Gitter, S. (eds) Toxicology in the Use, Misuse, and Abuse of Food, Drugs, and Chemicals. Archives of Toxicology, vol 6. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-69083-9_5
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DOI: https://doi.org/10.1007/978-3-642-69083-9_5
Publisher Name: Springer, Berlin, Heidelberg
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