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Related Experiment Videos

New knowledge in human milk immunoglobulin

L A Hanson, S Ahlstedt, B Carlsson

    Acta Paediatrica Scandinavica
    |September 1, 1978
    PubMed
    Summary
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    Maternal milk contains secretory IgA antibodies, crucial for infant immunity against pathogens. These antibodies, developed in response to intestinal antigens, may also offer anti-allergic benefits by neutralizing dietary proteins.

    Area of Science:

    • Immunology
    • Microbiology
    • Pediatrics

    Background:

    • Maternal milk's protective role against infections is partly attributed to secretory IgA (sIgA).
    • sIgA antibodies in milk target various pathogens, including enteric bacteria and viruses.
    • The origin of these milk antibodies is linked to the maternal intestinal immune system.

    Purpose of the Study:

    • To elucidate the mechanism by which maternal milk acquires antibodies.
    • To investigate the role of secretory IgA in protecting breast-fed infants.
    • To explore the potential anti-allergic properties of milk antibodies.

    Main Methods:

    • The study discusses the proposed homing mechanism of lymphoid cells from Peyer's patches to mammary glands.
    • It reviews existing research on antibody transfer and infant immune responses.
    Keywords:
    AntibodiesBiologyImmunityImmunologic FactorsImmunological EffectsLactationMaternal PhysiologyNutritionPhysiology

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  • Analysis of antibody content in maternal milk and its correlation with infant health outcomes.

    • Main Results:

    • Secretory IgA antibodies in maternal milk are primarily generated against intestinal bacteria and viruses.
    • These milk antibodies are transferred to infants, potentially conferring passive immunity.
    • Evidence suggests sIgA against dietary antigens, like cow's milk proteins, may reduce allergic responses.

    Conclusions:

    • Maternal milk's secretory IgA plays a vital role in infant protection against infections and potentially allergies.
    • The intestinal immune system is a key source of antibodies found in breast milk.
    • Further research into milk antibodies could lead to novel strategies for infant health and allergy prevention.