Nutrição e Saúde
URI permanente desta comunidadehttps://locus.ufv.br/handle/123456789/11841
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Resultados da Pesquisa
Item Circunferência da cintura e relação cintura/estatura: úteis para identificar risco metabólico em adolescentes do sexo feminino?(Revista Paulista de Pediatria, 2011-09) Pereira, Patrícia Feliciano; Serrano, Hiara Miguel S.; Carvalho, Gisele Queiroz; Peluzio, Maria do Carmo G.; Franceschini, Sylvia do Carmo C.; Priore, Silvia Eloiza; Lamounier, Joel AlvesAvaliar se a medida da circunferência da cintura e a relação cintura/estatura (RCE) são preditoras de fatores de risco cardiovasculares em adolescentes do sexo feminino. Avaliaram-se 113 adolescentes de 14 a 19 anos quanto à antropometria (peso, estatura e circunferência da cintura), parâmetros bioquímicos e clínicos (colesterol total, LDL-C, HDL-C, triglicerídeos, glicemia de jejum, insulina, homeostasis model assessment to assess insulin resistance - HOMA-IR, leptina, homocisteína e pressão arterial). Considerou-se como ponto de corte de obesidade abdominal valores de cintura e RCE>percentil 90. As adolescentes com obesidade abdominal apresentaram valores significantemente maiores de triglicerídeos (exceto para a RCE), insulina, HOMA-IR, leptina, pressão arterial sistólica e diastólica; o HDL-C foi mais baixo no grupo com cintura >percentil 90, porém sem significância estatística (p=0,052). O presente estudo demonstrou que a cintura e a RCE são medidas úteis para identificar adolescentes do sexo feminino com maior risco cardiovascular; contudo, a circunferência da cintura, isoladamente, apresentou melhor desempenho.Item Circunferência da cintura como indicador de gordura corporal e alterações metabólicas em adolescentes: comparação entre quatro referências(Revista da Associação Médica Brasileira, 2010) Peluzio, Maria do Carmo Gouveia; Franceschini, Silvia do Carmo Castro; Priore, Silvia Eloiza; Pereira, Patrícia Feliciano; Serrano, Hiara Miguel Stanciola; Carvalho, Gisele Queiroz; Lamounier, Joel AlvesAvaliar a validade diagnóstica de quatro tabelas de referência para circunferência da cintura em adolescentes do sexo feminino para detecção de alterações lipídicas, hiperinsulinemia, homeostasis model assessment (HOMA) elevado, hiperleptinemia e elevada adiposidade corporal. Avaliadas 113 adolescentes com idade entre 14 e 19 anos, provenientes de escolas públicas de Viçosa (MG). Em amostras de sangue foram dosados colesterol total, LDL, HDL, triglicerídeos, insulina e leptina. Determinado percentual de gordura corporal através de bioimpedância elétrica tetrapolar. Pela medida de menor diâmetro abdominal foi determinada a circunferência da cintura do abdômen e calculados valores de sensibilidade, especificidade, valor preditivo positivo e negativo. Foram elaboradas tabelas de contingência de classificação de circunferência da cintura em adolescentes para quatro critérios: Freedman et al., 1999; Taylor et al., 2000; McCarthy et al., 2001; e Moreno et al., 2007. Valores de sensibilidade em geral foram baixos para as referências avaliadas, sendo os maiores obtidos para a de McCarthy et al. Ao contrário, as especificidades foram altas, principalmente para a tabela de Freedman et al. Os valores preditivos positivos foram mais relevantes para colesterol total e percentual de gordura corporal.Os pontos de corte para circunferência da cintura de McCarthy et al. demonstraram-se os mais adequados para avaliações populacionais. A proposta de Freedman et al. por apresentar maior especificidade, é útil para uso clínico e pode substituir a realização de exames de custo elevado que em muitos locais não se encontram ao alcance dos profissionais de saúde, como leptina e insulina.Item Body dissatisfaction, physical activity, and sedentary behavior in female adolescents(Revista Paulista de Pediatria, 2018-10) Miranda, Valter Paulo Neves; Morais, Núbia Sousa de; Faria, Eliane Rodrigues de; Amorim, Paulo Roberto dos Santos; Marins, João Carlos Bouzas; Franceschini, Sylvia do Carmo Castro; Teixeira, Paula Costa; Priore, Silvia EloizaTo evaluate the association of body image with physical activity level, body composition, and sedentary behavior (SB) of female adolescents. Exploratory cross‑sectional study conducted with 120 female adolescents aged between 14‑19 years, from the city of Viçosa, Minas Gerais, Southeast Brazil. Body image was evaluated with a Body Silhouette Scale (BSS) and a Body Shape Questionnaire (BSQ). Weight, height, and waist circumference values were analyzed, as well as the waist‑to‑height ratio and body fat percentage. The physical activity level (PAL) was assessed by 24‑hour Physical Activity Recall and SB by screen time, that is, time spent in front of a TV, playing video game, on the computer and using tablets, and, separately, the cell phone time. Mean age was 16.5± 1.5 years, and most adolescents were eutrophic (77.6%), sedentary/low PAL (84.2%), with high screen time (85.2%) and cell phone time (58.7%). Body dissatisfaction was stated in 40.6% of BSQ and 45.8% of BSS evaluations. Body distortion was identified in 52.9% of participants. All body composition measures, along with cell phone time and PAL, were associated with body dissatisfaction, the more active adolescents presenting higher levels of dissatisfaction. This study concluded that female adolescents with higher cell phone time also present higher body dissatisfaction, as well as the most physically active ones. All body composition measurements were associated with body dissatisfaction, mainly body mass index, waist circumference, and waist‑to‑height ratio.Item Anthropometric indices to identify metabolic syndrome and hypertriglyceridemic waist phenotype: a comparison between the three stages of adolescence(Revista Paulista de Pediatria, 2014-10-14) Pereira, Patrícia Feliciano; Faria, Franciane Rocha de; Faria, Eliane Rodrigues de; Hermsdorff, Helen Hermana Miranda; Peluzio, Maria do Carmo Gouveia; Franceschini, Sylvia do Carmo Castro; Priore, Silvia EloizaTo determine the prevalence of metabolic syndrome (MS) and the hypertriglyceridemic waist phenotype (HW) in a representative adolescent sample; as well as to establish which anthropometric indicator better identifies MS and HW, according to gender and adolescent age. This cross sectional study had the participation of 800 adolescents (414 girls) from 10‐19 years old. Anthropometric indicators (body mass index, waist perimeter, waist/stature ratio, waist/hip ratio, and central/peripheral skinfolds) were determined by standard protocols. For diagnosis of MS, the criteria proposed by de Ferranti et al. (2004) were used. HW was defined by the simultaneous presence of increased waist perimeter (>75th percentile for age and sex) and high triglycerides (>100 mg/dL). The ability of anthropometric indicators was evaluated by Receiver Operating Characteristic curve. The prevalence of MS was identical to HW (6.4%), without differences between genders and the adolescence phases. The waist perimeter showed higher area under the curve for the diagnosis of MS, except for boys with 17‐19 years old, for whom the waist/stature ratio exhibited better performance. For diagnosing HW, waist perimeter also showed higher area under the curve, except for boys in initial and final phases, in which the waist/stature ratio obtained larger area under the curve. The central/peripheral skinfolds had the lowest area under the curve for the presence of both MS and HW phenotype. The waist perimeter and the waist/stature showed a better performance to identify MS and HW in both genders and in all three phases of adolescence.Item Polycystic ovary syndrome and intervening factors in adolescents from 15 to 18 years old(Revista da Associação Médica Brasileira, 2013-02-01) Faria, Franciane Rocha de; Gusmão, Laís Silveira; Faria, Eliane Rodrigues de; Gonçalves, Vivian Siqueira Santos; Cecon, Roberta Stofeles; Franceschini, Sylvia do Carmo Castro; Priore, Silvia EloizaTo assess the factors related to the presence of polycystic ovary syndrome (PCOS). This was a cross-sectional study, with female adolescents from 15 to 18 years old, divided into: group 1 (with a medical diagnosis of PCOS) and group 2 (not diagnosed with PCOS). The height-for-age index and the body mass index were used for classifying the nutritional status, and a semi-structured questionnaire was applied. The Mann-Whitney test, Fisher’s exact test, Spearman correlation coefficients, and logistic regression were used. This study evaluated 485 adolescents with an average age of 16.3 ± 0.9 years old. The prevalence of PCOS was 6.2%. No difference was found between the groups regarding anthropometric parameters and period of contraceptive use; however, there were differences regarding the age at menarche (p < 0.004). Older age at menarche was a protection factor against the syndrome. An association was found between younger age at menarche and the development of the PCOS in adolescents.Item Nutritional status, metabolic changes and white blood cells in adolescents(Revista Paulista de Pediatria, 2014-04-23) Oliveira, Thatianne Moreira Silva; Faria, Franciane Rocha de; Faria, Eliane Rodrigues de; Pereira, Patrícia Feliciano; Franceschini, Sylvia C.C.; Priore, Silvia EloizaTo analyze the relationship between the peripheral blood white cells, metabolic changes, and nutritional status of adolescents with and without excess weight and body fat. This cross-sectional study evaluated the body mass index (BMI) and percentage body fat (%BF) in 362 adolescents from 15 to 19 years of age, of both sexes. White blood cell count, platelet count, uric acid, fasting glucose, insulin, and lipid profile were measured. The inclusion criteria were agreement to participate in the study and signature of the informed consent. Exclusion criteria were: presence of chronic or infectious disease; use of medications that could cause changes in biochemical tests; pregnancy; participation in weight reduction and weight control programs; use of diuretics and laxatives; or the presence of a pacemaker. The following statistical tests were applied: Kolmogorov-Smirnov test, Student's t or Mann-Whitney test, Pearson or Spearman correlation tests, and chi-squared test, considering p<0.05. Overweight was observed in 20.7% of adolescents. The total cholesterol (TC) had a higher percentage of inadequacy (52.2%), followed by high-density lipoprotein (HDL) (38.4%). There was a positive correlation between white cells and serum lipids, insulin, body fat, and BMI. Monocytes were negatively correlated with BMI, and rods with BMI, body fat, and insulin. Nutritional status is related to an inflammatory process, and adolescents with excess weight or body fat presented higher amounts of white blood cells.Item Body composition, biochemical and clinical changes of adolescents with excessive adiposity(Arquivos Brasileiros de Cardiologia, 2012-04-12) Serrano, Hiara Miguel Stanciola; Carvalho, Gisele Queiroz; Pereira, Patrícia Feliciano; Peluzio, Maria do Carmo Gouveia; Franceschini, Sylvia do Carmo Castro; Priore, Silvia EloizaAdolescents with excess body fat and eutrophic had the same metabolic changes expected in obese individuals. To evaluate body composition, anthropometric changes, biochemical and clinical characteristics of female adolescents. A total of 113 adolescents from public schools in Viçosa, MG, divided into three groups: group 1 - consisting of eutrophic adolescents with excess body fat; group 2 - eutrophic with body fat within normal limits; and group 3 - with excess weight and body fat. Weight, height, waist and hip circumference, blood pressure were measured. The body mass index (BMI) and waist-hip ratio were calculated. The percentage of body fat was obtained by bioelectrical impedance horizontally, following its own protocol for this evaluation. The assessment of the percentage of body fat and biochemistry was performed after 12 hours of fasting, and analyzed the lipid profile, blood glucose and insulin, homocysteine, leptin and C-reactive protein. Insulin resistance was calculated by HOMA index. The group of eutrophic adolescents, with higher adiposity, behaved in relation to blood pressure, HDL and glucose levels, similarly to adolescents who are overweight. It can be seen that the HOMA index, insulin and leptin increased with increasing body fat. More than half of adolescents had total cholesterol and CRP levels above recommended levels. The most obvious metabolic disorder related to the lipid profile for both groups studied. Excess adiposity in normal weight adolescents may be related to clinical and biochemical changes similar to those found in adolescents who are overweight.Item Leukocytes as risk markers for cardiovascular disease in adolescents: association with birth characteristics, nutritional status and biochemical tests(Revista Paulista de Pediatria, 2015-12-24) Prado Junior, Pedro Paulo do; Faria, Franciane Rocha de; Faria, Eliane Rodrigues de; Franceschini, Sylvia do Carmo Castro; Priore, Silvia EloizaTo evaluate the correlation between the number of leukocytes and cardiovascular risks associated with birth characteristics, nutritional status and biochemical tests. Cross-sectional study developed with 475 adolescents, born between 1992 and 2001, in the municipality of Viçosa (MG). Maternal medical records were analyzed in the hospital units, and the following was recorded: birth weight and length, head circumference, chest circumference, Apgar score, gestational age. In adolescents, body mass index, skinfold thickness, body composition, blood count, biochemical tests and clinical variables were also assessed. The statistical analyses was carried out using Statistical Package for Social Sciences (SPSS) version 20.0 and Data Analysis and Statistical Software (STATA) with Kruskal–Wallis, Mann–Whitney, chi-square or Fisher's exact tests and Linear Regression. Significance level was set at α<0.05. The study was approved by the Research Ethics Committee of UFV for studies with human subjects. Weight and birth length, head and chest circumference were higher among boys. In adolescents, the number of leukocytes was higher in individuals with excess weight and body fat and high adiposity index, waist-to-height ratio and waist circumference. Only altered triglycerides showed differences between leukocyte medians. Regardless of the anthropometric variable of the final regression model, the stage of adolescence, number of platelets, eosinophils, monocytes and lymphocytes were associated with the increase in leukocytes. The birth variables were not associated with changes in leukocyte numbers, whereas the anthropometric variables were good indicators for a higher leukocyte count, regardless of the stage of adolescence and gender.Item Waist circumference as an indicator of body fat and metabolic disorders in adolescents: a comparison of four criteria(Revista da Associação Médica Brasileira, 2010-08-31) Pereira, Patrícia Feliciano; Serrano, Hiara Miguel Stanciola; Carvalho, Gisele Queiroz; Lamounier, Joel Alves; Peluzio, Maria do Carmo Gouveia; Franceschini, Silvia do Carmo Castro; Priore, Silvia EloizaTo evaluate the diagnostic validity of four waist circumference reference tables in female adolescents for detection of lipid abnormalities, hyperinsulinemia, high homeostasis model assessment (HOMA), hyperleptinemia, and high body adiposity. We evaluated 113 adolescents aged between 14 and 19 years enrolled in public schools of Viçosa (state of Minas Gerais, Brazil). Total cholesterol, LDL, HDL, triglycerides, insulin and leptin levels were measured. We also measured the percentage of body fat using tetrapolar bioelectrical impedance. Based on the measure of the smallest abdominal diameter, we defined the waist circumference and calculated sensitivity, specificity, positive and negative predictive values. Contingency tables for the classification of waist circumference in adolescents were developed for four criteria: Freedman et al., 1999; Taylor et al., 2000; McCarthy et al., 2001; and Moreno et al., 2007. Sensitivity values were generally low in the reference studies evaluated, and the highest values were found in the reference table by McCarthy et al. On the other hand, specificity values were high, especially for the table by Freedman et al. Positive predictive values were more relevant for total cholesterol and body fat percentage. The cutoff points for waist circumference provided by McCarthy et al. proved to be the most suitable for population studies. Because it has higher specificity, the proposal by Freedman et al. is useful for clinical use and can replace high cost tests, which are often unavailable for health professionals, such as those to measure leptin and insulin levels.Item Correlação entre variáveis de composição corporal e metabólica em adolescentes do sexo feminino(Arquivos Brasileiros de Cardiologia, 2008-10-24) Faria, Eliane Rodrigues de; Franceschini, Sylvia do Carmo Castro; Peluzio, Maria do Carmo Gouveia; Sant’Ana, Luciana Ferreira da Rocha; Priore, Silvia EloizaAnalysis of metabolic alterations and body composition in adolescents.To study the correlation of serum levels of lipids, glycemia, insulin, homocysteine, HOMA-IR and blood pressure among themselves and with body variables. Data concerning glycemia, total cholesterol and fractions (LDL, HDL and VLDL), triacylglycerols, insulin, homocysteine and blood pressure were measured in 100 adolescents at the age range of 14 to 17 years, who had already had menarche and attended the public schools in Vicosa, state of Minas Gerais, Brazil. The percentage of body fat (%BF) was evaluated by horizontal bioimpedance. In relation to nutritional status, 83%, 11% and 6%, respectively were eutrophic (EU), presented overweight/overweight risk (OW/OR) or low weight (LW) (CDC/NCHS, 2000) and 61% presented high percentage of BF. Total cholesterol presented the highest percentage of inadequacy (57%), followed by HDL (50%), LDL (47%) and triacylglycerols (22%). Inadequacy in 11%, 9%, 5% and 4% were observed in relation to insulin resistance, insulin, blood pressure and glycemia, respectively. For total cholesterol, insulin, HOMA-IR and nutritional state, OW/OR>LW (p<0.05). For body composition and nutritional status, OW/OR>EU>LW (p <0.001). Some positive and strong correlations were found between BMI and the anthropometrical measures estimating the % of total BF, as well as central distribution, except for the waist/hip ratio. The %BF was correlated with insulin levels (r=0.303; p <0.001) and HOMA-IR (r=0.281; p<0.001). Some metabolic alterations, most often related with excess weight and body fat as well as insulin resistance were found, reinforcing the importance of specific programs directed at the adolescent health.