CONCENTRAÇOES DE VITAMINA A NOS SANGUES MATERNO E DO CORDAO UMBILICAL E ANTROPOMETRIA NEONATAL

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A vitamina A influencia o crescimento, desenvolvimento e a imunidade. Neste estudo determinou-se a relação entre as concentrações de vitamina A nos sangues materno e do cordão umbilical e a antropometria de 711 recém-nascidos
rondo9.jpg Autor:
Rondó p h
Columnista Experto de SIIC
Artículos publicados por Rondó p h
Coautores
Andrew Tomkins, MD, FRCP;*  Rebecca Abbott, BSc, PhD** 
Centre for International Child Health, Institute of Child Health, University of London, 30 Guilford Street, WC1N 1EH, London, UK*
School of Human Movement Studies, Faculty of Health, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia;**
Recepción del artículo
12 de Febrero, 2004
Primera edición
8 de Junio, 2004
Segunda edición, ampliada y corregida
7 de Junio, 2021

Resumen
A vitamina A influencia o crescimento, desenvolvimento e a imunidade. Neste estudo determinou-se a relação entre as concentrações de vitamina A nos sangues materno e do cordão umbilical e a antropometria de 711 recém-nascidos (RN). A vitamina A foi determinada através de cromatografia líquida de alta precisão. As concentrações de vitamina A no cordão apresentaram correlações significantes (p < 0.001) com o peso ao nascimento (r = 0.24), comprimento (r = 0.20), circunferências torácica (r = 0.24), braquial (r = 0.23) e craniana (r = 0.12), e prega cutânea do tríceps (r = 0.26) dos RN. Não observou-se nenhuma correlação significante entre as concentrações de vitamina A no sangue materno e antropometria dos RN. As medidas antropométricas foram relacionadas com as concentrações de vitamina A (média e desvio padrão) e divididas em quartis. As diferenças entre os quartis foram testadas por análise de variância. Os RN no menor quartil de comprimento, circunferência craniana e prega cutânea do tríceps apresentaram as menores concentrações de vitamina A. Os RN no menor quartil de peso, circunferências craniana e torácica apresentaram menores concentrações de vitamina A que aqueles nos dois maiores quartis (p < 0.003). Este estudo detectou concentrações mais baixas de vitamina A nos menores RN, refletindo o importante papel desse micronutriente no crescimento.

Palabras clave
Vitamina A, antropometria, recém-nascido


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Abstract
Vitamin A has an influence on growth, development and immunity. This study determined the relationship between maternal and cord blood concentrations of vitamin A and anthropometry of 711 newborn babies. Vitamin A concentration was determined by high performance liquid chromatography. Concentrations of vitamin A in cord blood correlated significantly (p < 0.001) with birthweight (r = 0.24), length (r = 0.20), chest circumference (r = 0.24), mid-upper arm circumference (r = 0.23), triceps skinfold thickness (r = 0.26), and head circumference (r = 0.12) of the babies. There were no statistically significant correlations between the concentrations of vitamin A in maternal blood and anthropometry of the newborn babies. The anthropometric measurements were sorted by the vitamin A concentrations (mean and standard deviation) and divided in quartiles. Differences between the quartiles were tested by analysis of variance. Babies in the bottom length and in head circumference and triceps skinfold thickness quartiles had the lowest mean vitamin A concentrations. Babies in the bottom birthweight and chest and mid-upper arm circumference quartiles had lower mean vitamin A concentrations than those in the two highest quartiles (p < 0.003). These data shows that thinner/shorter babies had lower concentrations of vitamin A than heavier/longer babies, reflecting the important role of this micronutrient on growth.

Key words
Aitamin A, anthropometry, newborn baby


Clasificación en siicsalud
Artículos originales > Expertos de Iberoamérica >
página   www.siicsalud.com/des/expertocompleto.php/

Especialidades
Principal: Obstetricia y Ginecología
Relacionadas: Nutrición, Pediatría



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Bibliografía del artículo
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