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Updated: Jun 24, 2026

Opsonophagocytic Killing Assay to Assess Immunological Responses Against Bacterial Pathogens
Published on: April 5, 2019
ADAPTIVE ENZYME SYNTHESIS: ITS INHIBITION AS A POSSIBLE ANALOGUE OF IMMUOLOGICAL TOLERANCE
Abstract:
Substrate induction of tryptophan pyrrolase in the liver of rats is inhibited by prior treatment of very young rats with tryptophan. This inhibition seems analogous to immunological tolerance, which can be produced by prior treatment with the antigen. The findings prowide support for an analogy between mechanisms of adaptive enzyme synthesis and those involved in adaptive immunity.
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