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Related Experiment Videos

Tumor anorexia: a learned food aversion?

I L Bernstein, R A Sigmundi

    Science (New York, N.Y.)
    |July 18, 1980
    PubMed
    Summary
    This summary is machine-generated.

    Tumor growth can cause anorexia by creating learned food aversions to specific diets. Introducing a new diet immediately increased food intake, suggesting aversion is a key factor in tumor anorexia.

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    Area of Science:

    • Oncology
    • Behavioral Neuroscience
    • Nutritional Science

    Background:

    • Anorexia, or appetite loss, is a common symptom associated with developing illnesses, particularly cancer.
    • The precise mechanisms driving anorexia during tumor progression are not fully understood.
    • Dietary intake patterns are known to influence overall health and disease progression.

    Purpose of the Study:

    • To investigate the relationship between tumor growth, diet, and the development of anorexia.
    • To determine if learned aversions to specific diets contribute to tumor-induced anorexia.
    • To explore the impact of novel diets on food intake in the presence of tumors.

    Main Methods:

    • Studies involved monitoring food intake in subjects with developing tumors.

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  • Learned aversions were assessed by observing food consumption patterns.
  • The effect of introducing a novel diet was measured.

    • Main Results:

    • A decline in food intake was observed concurrently with tumor growth.
    • Subjects developed aversions to the specific diet consumed during tumor development.
    • Food consumption significantly increased when a novel diet was introduced.

    Conclusions:

    • Learned aversions to the diet consumed during tumor growth may be a causal factor in tumor anorexia.
    • Altering dietary exposure can mitigate anorexia associated with tumor progression.
    • Understanding learned aversions offers a potential therapeutic target for managing cancer-related appetite loss.