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Related Experiment Videos

Tartrazine and prostaglandin-system

R Ceserani, M Colombo, M Robuschi

    Prostaglandins and Medicine
    |December 1, 1978
    PubMed
    Summary

    Tartrazine, a food dye, causes bronchoconstriction in aspirin-sensitive individuals by inhibiting prostaglandin and thromboxane A2 formation. This mechanism mirrors that of nonsteroidal anti-inflammatory drugs, impacting the cyclooxygenase pathway.

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    Area of Science:

    • Pharmacology
    • Biochemistry
    • Toxicology

    Background:

    • Tartrazine is a widely used synthetic yellow dye in food, beverages, pharmaceuticals, and cosmetics.
    • Some individuals sensitive to aspirin experience bronchoconstriction when exposed to tartrazine.
    • This reaction is similar to that induced by nonsteroidal anti-inflammatory drugs (NSAIDs).

    Purpose of the Study:

    • To investigate the effect of tartrazine on the prostaglandin system.
    • To understand the mechanism by which tartrazine may induce bronchoconstriction in sensitive subjects.
    • To compare tartrazine's action to that of known NSAIDs like aspirin and indomethacin.

    Main Methods:

    • Studied the interference of tartrazine on prostaglandin synthesis in guinea pig lungs.
    • Utilized arachidonic acid perfusion in isolated guinea pig lungs.
    • Examined the inhibition of prostaglandin and thromboxane A2 formation.

    Main Results:

    • Tartrazine inhibits the formation of both prostaglandins and thromboxane A2.
    • This inhibition occurs at the cyclooxygenase (COX) enzyme level.
    • The inhibitory effect is comparable to that of aspirin and indomethacin.

    Conclusions:

    • Tartrazine interferes with the prostaglandin synthesis pathway.
    • The mechanism of action involves inhibition of cyclooxygenase.
    • This finding provides a potential explanation for tartrazine-induced bronchoconstriction in aspirin-sensitive individuals.

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