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Navegando por Autor "Brito, Nara"

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    Bioelectrical impedance vector analysis and phase angle on different oral zinc supplementation in eutrophic children: randomized triple-blind study
    (Nutrients, 2019) Lais, Lucia Leite; Vermeulen-Serpa, Karina Marques; Lopes, Márcia Marilia Gomes Dantas; Alves, Camila Xavier; Brito, Nara; Brandão Neto, José; Vale, Sancha Helena de Lima; Almeida, Maria das Graças; https://orcid.org/0000-0002-8061-7048
    The parameters derived from bioelectrical impedance, phase angle (PA) and bioelectrical impedance vector analysis (BIVA) have been associated with cell membrane integrity and body cell mass. Zinc is a micronutrient that exerts important structural functions and acts in maintaining cellular functionality. To evaluate cell integrity and body cell mass, PA and BIVA were evaluated in children orally supplemented with zinc at different concentrations. Anthropometric, bioelectrical (resistance and reactance) and serum zinc variables were collected from two randomized, triple-blind, controlled clinical trials. Sampling was composed of 71 children consisting of three groups: a control group who received a placebo and two experimental groups who received oral supplementation of 5 or 10 mg-Zn/day for three months. The three groups presented increases (p < 0.001) in the linear height and weight. In the group supplemented with 10 mg-Zn/day, there was an increase in reactance values (p = 0.036) and PA (p = 0.002), in addition to vector displacement (p < 0.001) in relation to the confidence ellipses. An increase in serum zinc concentration was found (p < 0.001) in all three groups. Whit this, the supplementation with 10 mg-Zn/day promotes changes in the integrity of the cell membrane associated with the increase in the cellular mass of healthy children.
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