Aspects of trace element interactions during development

L. S. Hurley, Carl L Keen, B. Lonnerdal

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

The origins of nutritional trace element deficiencies are summarized. Inadequate intake results in primary deficiency, whereas secondary or conditioned deficiencies can arise in several ways including trace element interactions. Evidence is presented and discussed for interactions of essential trace elements during prenatal and early postnatal development. Diets of widely different zinc and copper concentrations and ratios were fed to pregnant rats. Analysis of fetal outcome and copper and zinc concentrations of maternal and fetal livers showed that although there is an interaction between these metals it occurs only at levels of dietary copper deficiency. Iron and manganese interact so that high levels of one depress absorption of the other. Mice fed iron-supplemented diets had liver manganese concentrations lower than those of unsupplemented mice. Conversely, zinc deficiency in pregnant rats caused higher than normal concentrations of iron in maternal and fetal liver. Trace element analyses of proprietary infant formulas indicate that in some, concentrations and ratios of these trace elements may be incorrect. The effects of essential trace element interactions during development should be further investigated. Caution is urged in considering levels of trace element supplements during pregnancy, lactation, or early childhood.

Original languageEnglish (US)
Pages (from-to)1735-1739
Number of pages5
JournalFederation Proceedings
Volume42
Issue number6
StatePublished - 1983

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Trace Elements
Zinc
Copper
Iron
Manganese
Liver
Mothers
Diet
Infant Formula
Lactation
Metals
Pregnancy

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Hurley, L. S., Keen, C. L., & Lonnerdal, B. (1983). Aspects of trace element interactions during development. Federation Proceedings, 42(6), 1735-1739.

Aspects of trace element interactions during development. / Hurley, L. S.; Keen, Carl L; Lonnerdal, B.

In: Federation Proceedings, Vol. 42, No. 6, 1983, p. 1735-1739.

Research output: Contribution to journalArticle

Hurley, LS, Keen, CL & Lonnerdal, B 1983, 'Aspects of trace element interactions during development', Federation Proceedings, vol. 42, no. 6, pp. 1735-1739.
Hurley LS, Keen CL, Lonnerdal B. Aspects of trace element interactions during development. Federation Proceedings. 1983;42(6):1735-1739.
Hurley, L. S. ; Keen, Carl L ; Lonnerdal, B. / Aspects of trace element interactions during development. In: Federation Proceedings. 1983 ; Vol. 42, No. 6. pp. 1735-1739.
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