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Related Experiment Videos

Vitamin C and the immune response.

B V Siegel, J I Morton

    Experientia
    |March 15, 1977
    PubMed
    Summary

    Vitamin C supplementation did not affect antibody production in mice. However, it significantly boosted cell-mediated immunity, suggesting a potential role in antiviral defense.

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    Area of Science:

    • Immunology
    • Nutrition Science
    • Virology

    Background:

    • Vitamin C (ascorbic acid) is a vital nutrient with known antioxidant properties.
    • Its role in modulating the immune system, particularly in the context of infections, is an area of ongoing research.
    • Previous studies have yielded mixed results regarding vitamin C's impact on immune responses.

    Purpose of the Study:

    • To investigate the specific effects of vitamin C supplementation on distinct arms of the immune system.
    • To determine if vitamin C influences humoral and cell-mediated immunity in a murine model.
    • To explore potential mechanisms for vitamin C's suggested protective effects against viral infections.

    Main Methods:

    • BALB/c mice were administered vitamin C in their drinking water.
    • Humoral immune response was assessed using sheep red blood cells and bacterial lipopolysaccharide as antigens.
    • Cell-mediated immune response was evaluated by measuring T-lymphocyte proliferation in response to concanavalin A.
    • Interferon levels were also monitored as a potential indicator of antiviral activity.

    Main Results:

    • Vitamin C supplementation had no significant impact on the humoral antibody response to sheep red blood cells or lipopolysaccharide.
    • A significant enhancement in cell-mediated immune response was observed, evidenced by increased T-lymphocyte responses to concanavalin A.
    • Preliminary data suggested a potential enhancement of interferon production, though not explicitly detailed in the abstract.

    Conclusions:

    • Vitamin C does not appear to enhance humoral immunity in this model.
    • Vitamin C significantly augments cell-mediated immunity, indicated by T-lymphocyte activity.
    • The observed enhancement of cell-mediated immunity and potential interferon modulation may contribute to vitamin C's protective role in certain viral infections.

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