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  • Title: Breast-milk antimicrobial factors of rural Gambian mothers. I. Influence of stage of lactation and maternal plane of nutrition.
    Author: Prentice A, Prentice AM, Cole TJ, Paul AA, Whitehead RG.
    Journal: Acta Paediatr Scand; 1984 Nov; 73(6):796-802. PubMed ID: 6524367.
    Abstract:
    The concentrations of IgA, IgG, IgM, C3, C4, lactoferrin, lysozyme and secretory component in the mature breast milk of 152 rural Gambian mothers were measured up to 26 months lactation. The concentrations and daily secretion of all the immunoproteins, except lysozyme, decreased during the first year of lactation, but were well maintained thereafter. The production of lysozyme increased progressively throughout lactation. Compared with 10 mothers in Cambridge, U.K., the daily secretion of IgG, IgM, C3 and C4 was higher in The Gambia, that of IgA and lactoferrin was similar in the two communities, and that of lysozyme and secretory component was lower in The Gambia. A dietary supplement given to 90 Gambian mothers, raised the mean daily energy intake from a maximum of 1650 kcal/day and a hungry-season minimum of 1 200 kcal/day to 2 300 kcal/day throughout the study. The supplement did not enhance the production of breast milk immunoproteins. The concentrations of IgA, IgG, IgM, C3, C4, lactoferrin, lysozyme, and secretory component in the mature breastmilk of 152 rural Gambian mothers were measured up to 26 months lactation. The concentrations and daily secretion of all the immunoproteins, except lysozyme, decreased during the 1st year of lactation, but were well maintained thereafter. The production of lysozyme increased progressively throughout lactation. Compared with 10 mothers in Cambridge, England, the daily secretion of IgG, IgM, C3, and C4 was higher in The Gambia, that of IgA and lactoferrin was similar in the 2 communities, and that of lysozyme and secretory component was lower in The Gambia. A dietary supplement was given to 90 Gambian mothers and it raised the mean daily energy intake from a maximum of 1650 kcal/day and a hungry-season minimum of 1200 kcal/day to 2300 kcal/day throughout the study. The supplement did not enhance the production of breastmilk immunoproteins.
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