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  • Title: [Assay of thermolabile enterotoxins of Escherichia coli and Vibrio cholerae by inhibition of erythroadsorption on the GM1 ganglioside].
    Author: Germani Y, Bégaud E, Guesdon JL, Moreau JP.
    Journal: Ann Inst Pasteur Microbiol; 1987; 138(2):223-34. PubMed ID: 3606879.
    Abstract:
    A GM1 erythroassay (GERYDO) for heat-labile Escherichia coli enterotoxin (LT) and cholera toxin (CT) is described. This assay was developed for use in poorly equipped laboratories in developing countries. It uses GM1-coated polystyrene plates and is based on the competition between the toxin to be assayed and CT covalently bound to sheep red blood cells. GERYDO can detect 0.9 or 0.5 ng of CT per ml depending on the method of sensitization of erythrocytes. Good quantitative and qualitative correlation with the enzyme-linked immunosorbent assay and the Vero cell test was observed.
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