Elemental composition of human milk from mothers of premature and full- term infants during the first 3 months of lactation

James K. Friel*, Wayne L. Andrews, Simon E. Jackson, Henry P. Longerich, Claude Mercer, Allison McDonald, Barbara Dawson, B. Sutradhar

*Corresponding author for this work

    Research output: Contribution to journalArticle

    55 Citations (Scopus)

    Abstract

    To examine longitudinal and gestational effects of mineral content in human milk, we analyzed human milk from lactating mothers of premature (PRT, n = 24, < 2000 g birth weight, < 37 wk gestation) and fullterm (FT, n = 19, > 2500 g, 39-41 wk gestation), living in Newfoundland, Canada. Samples were collected once a week for 8 wk with one final sample collected at 3 mo. Milk samples collected in acid-washed containers were wet ashed with concentrated HNO3, and barium, cadmium, calcium; cesium, cobalt, copper, cerium, lanthanum, magnesium, manganese, molybdenum, nickel, lead, rubidium, tin, strontium, and zinc were measured using inductively coupled plasma-mass spectrometry. Data were analyzed using standard multiple-regression procedures with correlated data analyses to take account of the relationship between successive weeks. Results indicated lower Ca and Pb in PRT milk. Calcium was the only nutritionally significant element to differ between groups. Molybdenum in both PRT and FT milk showed a definite decrease with time, suggesting that the Mo content in milk is homeostatically regulated. However, Ce, La, Ba, and Sn did not display any pattern indicative of biological regulation and potential human requirement.

    Original languageEnglish
    Pages (from-to)225-247
    Number of pages23
    JournalBiological Trace Element Research
    Volume67
    Issue number3
    Publication statusPublished - 1999

    Keywords

    • Full-term
    • Human milk
    • Longitudinal
    • Minerals
    • Premature

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  • Cite this

    Friel, J. K., Andrews, W. L., Jackson, S. E., Longerich, H. P., Mercer, C., McDonald, A., ... Sutradhar, B. (1999). Elemental composition of human milk from mothers of premature and full- term infants during the first 3 months of lactation. Biological Trace Element Research, 67(3), 225-247.