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  • Title: [Intragastric provocation and antigen-induced in vitro histamine liberation by the food additive E 102].
    Author: Schaubschläger W, Ruschmeyer J, Zabel P, Schlaak M.
    Journal: Immun Infekt; 1988 Jun; 16(3):118-9. PubMed ID: 2456984.
    Abstract:
    Adverse reactions to tartrazine have been known since 1958. The mechanism of this reaction, a not IgE-mediated, anaphylactoid reaction, is not fully understood. The demonstration of this adverse reaction by provocative challenge feeding may be problematic by a score of subjective symptoms because of the placebo effect. This report deals with the intragastral provocation under endoscopic control with tartrazine and tartrazine-induced histamine release in vitro from gastric mucosa and from blood. Two patients with anamnestically suspected adverse reactions to tartrazine were studied. Correspondence of in vivo and in vitro testing with tartrazine could be demonstrated.
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