Determinação do perfil de aminoácidos em recém nascidos pré-termo alimentados com dietas modificadas de leite humano.

Abstract

Breastfeeding is the safest way to nurture a child. However, when used for premature infants have nutritional deficiencies become apparent. An alternative is the use of human milk additive. The aim of this study the determination of amino acids in preterm infants fed three diets modified in human milk. We studied 30 preterm infants, gestational age less than 34 weeks with birth weights less than or equal to 1500 grams. The newborns were followed by measuring anthropometric evaluations weight, length and head circumference, and biochemical analysis of the amino acid profiles were collected a blood sample before receiving the diet and the other end of the study sample before the final diet. Were distributed at random into three groups according to diet were: human milk bank at 5% of the additive FM85 ; bank human milk fortified with human milk and evaporated human milk fortified with human milk bank lyophilized. The results were statistically analyzed using the "software" Instat for Windows®, version 2.0. We used the differences in which the value of "p" was less than 0.05. The comparison between groups was performed by means of tests: t'student paired and 1-way ANOVA for repeated measures with Tukey post test. Weight and length did not differ significantly, but the head circumference was significantly higher in group III. The values of phenylalanine, tyrosine, methionine and histidine were significantly higher in group I, while the value of threonine was significantly higher in groups II and III was not significant among them. The values of lysine, valine, leucine and glycine there were no differences between groups. And the value of glutamine was higher in groups II and III. The markers in the kidney remained appropriate values. Observed in this study a more appropriate amino acid profile in groups II and III compared to group I. They assume that human milk with additive own unique human milk is the best food for premature babies, either evaporated or freeze-dried. Preterm newborns can also be fed hydrolyzed protein heterologous respecting the special needs of premature infants