Navegando por Autor "Dantas, Raquel Costa Silva"
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Artigo Acuracy and concordance of anthropometric indicators and body composition in heart failure(International Journal of Cardiovascular Sciences, 2018) Lyra, Clélia de Oliveira; Rocha, Daniela de Oliveira; Dantas, Raquel Costa Silva; Andrade, Fernanda Lambert de; Avelino, Regina Ranielly dos Santos; Diniz, Rosiane Viana Zuza; Lira, Niethia Regina Dantas de; Evangelista, Karine Cavalcanti Mauricio SenaBackground: Anabolic/catabolic disorder in heart failure (HF) favors cardiac cachexia, implying a reduction in HF survival. Objectives: To assess the accuracy and concordance of the diagnosis of protein malnutrition and excess fat among the anthropometric and body composition methods in individuals with HF. Method: A study of accuracy that included 60 individuals with HF. Body mass index (BMI), arm circumference (AC), triceps skinfold thickness (TST), adductor pollicis muscle thickness (APMT), arm muscle circumference (AMC) and corrected arm muscle area (cAMA). Fat free mass index (FFMI) and body fat percentage (BF%), obtained by electrical bioimpedance (EBI), were used to compare the diagnosis of protein malnutrition and excess fat. Accuracy was assessed by calculating sensitivity, specificity, positive and negative predictive value. The concordance of the EBI diagnosis and other methods was performed by the chi-square test and kappa (k) statistic, where p<0.05 was considered significant. Results: Higher frequencies of protein malnutrition were identified by cAMA and AMC, and excess fat by BF%. BMI presented low sensitivity (43%) and accuracy (38.5%), with moderate concordance (0.50). AMC sensitivity was 86%, accuracy 66.4%, and acceptable concordance (0.36) compared to FFMI. Similar percentages of moderate sensitivity and low accuracy were observed for TST and BMI. Conclusion: AMC may be useful to identify protein malnutrition and TST has not been adequate to diagnose adiposity. BMI was not sensitive to assess muscle and adipose reserve. EBI was more accurate. (Int J Cardiovasc Sci. 2019;32(2)143-151)Artigo α-Tocopherol in breast milk of women with preterm delivery after a single postpartum oral dose of vitamin E(British Journal of Nutrition, 2016-03-02) Neves, Renata Alexandra Moreira das; Medeiros, Jeane Franco Pires; Ribeiro, Karla Danielly da Silva; Lima, Mayara Santa Rosa; Lima, Amanda Cibely Pinheiro; Dantas, Raquel Costa Silva; Silva, Alyne Batista da; Dimenstein, Roberto; https://orcid.org/0000-0003-1014-0536; https://orcid.org/0000-0002-2251-5967; https://orcid.org/0000-0003-3006-7700; https://orcid.org/0000-0001-8517-6811We evaluated the effect of maternal vitamin E supplementation on the α-tocopherol concentrations of colostrum, transitional milk and mature milk of women who had given birth prematurely. This longitudinal randomised-controlled trial divided eighty-nine women into two groups: a control group and a supplemented group. Blood and breast milk were collected from all the participants after delivery. Next, each woman in the supplemented group received 400 IU of RRR-α-tocopheryl acetate. Further breast milk samples were collected 24 h after the first collection, as well as 7 and 30 d after delivery. α-Tocopherol concentrations were determined by HPLC. The baseline α-tocopherol concentrations in the maternal serum of the two groups were similar: 1159·8 (SD 292·4) μg/dl (27·0 (SD 6·8) μmol/l) for the control group and 1128·3 (SD 407·2) μg/dl (26·2 (SD 9·5) μmol/l) for the supplemented group. None of the women was vitamin E deficient. Breast milk α-tocopherol concentrations increased by 60 % 24 h after supplementation in the intervention group and did not increase at all in the control group. α Tocopherol concentration of the transitional milk in the supplemented group was 35 % higher compared with the control group. α-Tocopherol concentrations of the mature milk in both groups were similar. Maternal supplementation with 400 IU of RRR-α-tocopherol increased the vitamin E concentrations of the colostrum and transitional milk, but not of the mature milk. This study presents relevant information for the design of strategies to prevent and combat vitamin E deficiency in the risk group of preterm infants