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  • Title: Serum trace elements and fat-soluble vitamins A and E in healthy pre-school children from a Venezuelan rural community.
    Author: Brunetto MR, Alarcón OM, Dávila E, Contreras Y, Gallignani M, Rondón C, Burguera JL, Burguera M, Angarita C.
    Journal: J Trace Elem Med Biol; 1999 Jul; 13(1-2):40-50. PubMed ID: 10445217.
    Abstract:
    Zn (SZn), Cu (SCu), Fe (SFe), vitamin A (SVA) and vitamin E (SVE) were measured in blood serum samples of 85 healthy pre-school children aged 2-6 yr. from the rural community of Canaguá, Mérida State, Venezuela. The relationship between these biochemical indexes was also investigated. The mean serum concentrations of zinc, copper, iron, vitamin A and vitamin E were 0.74 +/- 0.25, 1.18 +/- 0.30, 0.76 +/- 0.20, 0.30 +/- 0.15 and 5.87 +/- 0.43 mg/L, respectively. There was a tendency for SZn to increase with age, whereas SCu and SVA decreased. There was no significant difference in serum trace elements and fat-soluble vitamin concentration between males and females in the different age groups. SFe tended to be lower than that reported in the literature. However, the age groups studied showed no statistically significant sex- and age-related differences. The present study shows that there is a complex interaction between SZn, SCu, SFe, SVA, SVE and age of the children. Multiple regression analysis showed serum zinc was strongly related to serum copper, and serum iron. Serum vitamin A was strongly related to serum zinc and serum vitamin E, whereas serum vitamin E was strongly related to serum zinc, serum copper, and serum vitamin A. On the other hand, our observations also suggest that more detailed studies of these metals and fat-soluble vitamins should be carried out, and that the study should include nutritional surveys, metabolic balances and associations between SZn, SCu, SFe, SVA and SVE and anthropometric variables (height, weight, body mass index and skinfold thickness).
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