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1.
J Pediatr (Rio J) ; 91(6): 596-602, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26192715

RESUMO

OBJECTIVE: To validate the Subjective Global Nutritional Assessment (SGNA) questionnaire for Brazilian children and adolescents. METHODS: A cross-sectional study with 242 patients, aged 30 days to 13 years, treated in pediatric units of a tertiary hospital with acute illness and minimum hospitalization of 24h. After permission from the authors of the original study, the following criteria were observed to obtain the validation of SGNA instruments: translation and backtranslation, concurrent validity, predictive validity, and inter-observer reliability. The variables studied were age, sex, weight and length at birth, prematurity, and anthropometry (weight, height, body mass index, upper arm circumference, triceps skinfold, and subscapular skinfold). The primary outcome was considered as the need for admission/readmission within 30 days after hospital discharge. Statistical tests used included ANOVA, Kruskal-Wallis, Mann-Whitney, chi-square, and Kappa coefficient. RESULTS: According to SGNA score, 80% of patients were considered as well nourished, 14.5% moderately malnourished, and 5.4% severely malnourished. Concurrent validity showed a weak correlation between the SGNA and anthropometric measurements (p<0.001). Regarding predictive power, the main outcome associated with SGNA was length of admission/readmission. Secondary outcomes associated included the following: length of stay at the unit after SGNA, weight and length at birth, and prematurity (p<0.05). The interobserver reliability showed good agreement among examiners (Kappa=0.74). CONCLUSION: This study validated the SGNA in this group of hospitalized pediatric patients, ensuring its use in the clinical setting and for research purposes in the Brazilian population.


Assuntos
Avaliação Nutricional , Desnutrição Proteico-Calórica/diagnóstico , Inquéritos e Questionários , Adolescente , Brasil , Criança , Pré-Escolar , Estudos Transversais , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Estado Nutricional , Variações Dependentes do Observador , Reprodutibilidade dos Testes , Índice de Gravidade de Doença
2.
Clin. biomed. res ; 34(1): 53-59, 2014. tab
Artigo em Português | LILACS | ID: biblio-834450

RESUMO

INTRODUÇÃO: O Fator Neurotrófico Derivado do Cérebro (BDNF) é uma importante neurotrofina que está presente no tecido cerebral e periférico. O leite materno é considerado o alimento “padrão ouro” para o desenvolvimento cerebral, tornando o desmame precoce um fator de risco no desenvolvimento infantil. OBJETIVO: Avaliar a concentração de BDNF, IL6, IL10, TNF-α em crianças e correlacionar com a duração da amamentação. MÉTODOS: Trinta e sete crianças foram recrutadas e classificadas de acordo com a duração do aleitamento materno: < 6 meses (desmame precoce) e ≥ 6 meses. Foram realizadas duas consultas: a consulta basal em 2007 (T0) e a consulta de seguimento em 2011 (T1). Os níveis séricos de BDNF foram avaliados por ELISA sanduíche e os de citocinas por citometria de fluxo. RESULTADOS: Níveis séricos de BDNF em T0 foram significativamente menores no grupo amamentado por ≥ 6 meses (p=0,025), sendo que este não teve diferença entre os grupos em T1 (p=0,863). Níveis de IL6 apresentaram-se aumentados significativamente em T0 no grupo de desmame precoce (p=0,016). O IMC em T1 foi maior no grupo de desmame precoce (p=0,007). E em relação aos níveis de IL10 e TNF-α não houve diferenças significativas entre os grupos. CONCLUSÃO: Os resultados deste estudo mostraram semelhanças entre os níveis séricos de BDNF medidos a longo prazo, entre crianças amamentadas por < 6 meses e ≥ 6 meses, sugerindo que futuros estudos são necessários, com dosagens durante o período de amamentação para investigar o papel de marcadores neuroquímicos na duração do aleitamento materno e suas implicações no estado nutricional e cognição das crianças amamentadas.


BACKGROUND: The Brain-Derived Neurotrophic Factor (BDNF) is an important neurotrophin found in the brain and peripheral tissues. Breast milk is considered to be the “gold standard” food for brain development, making early weaning a risk factor in child development. AIM: To evaluate the concentration of BDNF, IL6, IL10, TNF-α in children and its correlation with the duration of breastfeeding. METHODS: Thirty-seven children were recruited and classified according to the duration of breastfeeding: <6 months (early weaning) and ≥ 6 months. There were two visits: the baseline interview in 2007 (T0) and the follow-up visit in 2011 (T1). BDNF levels were assayed using a sandwich ELISA, and cytokines were assayed with flow cytometry. RESULTS: Serum BDNF levels at T0 were significantly lower in the group breastfed for ≥ 6 months (p = 0.025), and they did not differ between groups at T1 (p = 0.863). IL-6 levels were significantly increased in the early weaning group at T0 (p = 0.016). Body mass index at T1 was higher in the early weaning group (p = 0.007). There was no significant difference in IL10 and TNF-α levels between groups. CONCLUSION: The results of this study showed similarities in serum BDNF levels over time between children who had been breastfed <6months and ≥ 6 months. This suggests that further studies, with measurements taken during the breastfeeding period, are needed to investigate the role of neurochemical markers in the duration of breastfeeding and its implications on nutritional status and cognition of breastfed children.


Assuntos
Humanos , Adolescente , Aleitamento Materno , Fator Neurotrófico Derivado do Encéfalo/sangue , Leite Humano/fisiologia , Índice de Massa Corporal , Peso Corporal , Causalidade , Citocinas , Obesidade/prevenção & controle , Fatores de Tempo
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