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Previous issue date: 2007-06-12 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / The mothers supplementation of vitamin A in the postpartum comes being a measure of intervention sufficiently used in the combat to the vitamin deficiency. The objective of this work was to evaluate the effect of the mother megadose of vitamin A under the levels of retinol in colostrum of postpartum mothers receiving care at the Janu?rio Cicco Maternity School (MEJC), Natal, RN, as well as analyzing the influence of the maternal nutritional status in the reply to this supplementation. The study it was transversal type, with participation of 91 women in labor divided in group had participated of the study have controlled (44 women) and supplemented group (47 women). In the period of the morning blood and milk had been collected (milk 0h). After that a capsule of retinil palmitate of (200 000 UI or 60 mg) was supplied to the supplemented group. Another aliquot of colostro was after gotten 24h of the first collection (milk 24h). Retinol in milk and serum was quantified through the High Pressure Liquid Chromatography. The vitamin ingestion was evaluated by the questionnaire of frequency of alimentary consumption. The levels of serum retinol were 40.6 ? 10.6 and 35.9 ? 10.9 ?g/dL in the groups controlled and supplemented, respectively. The women had presented a satisfactory average ingestion of vitamin (1492,4 ?gRAE/dia), however with high prevalence of inadequate consumption (23%). Average values of retinol in milk 0h had been found and 24h of 93.5 ? 50.3 ?g/dL and 99.1 ? 49.3 ?g/dL has the group controlled group, respectively (p>0.05). After the supplementation had a significant increase in the levels of retinol of the supplemented group, being found values of 102.0 ? 56.0 ?g/dL and 196.1 ? 74.0 ?g/dL for milk 0h and 24h, respectively (p<0.0001). The women in labor presented different answers to the supplementation influenced for the basal levels of retinol in colostrum. It was possible to verify that women with deficient levels of retinol in milk had transferred more retinol to milk 24h than ones with adjusted levels, showing a percentage of reply equivalent to 326.1% and 86.5% of increase, respectively (p< 0.0001). Although the apparent normality found in the serum, the studied women are considered of risk to the development of the vitamin deficiency, and megadose was efficient in first 24h after the supplementation and wakes up with the mechanisms considered for transference of vitamin A to the milk / A suplementa??o materna de vitamina A no p?s-parto ? utilizada como medida de interven??o no combate ? defici?ncia de vitamina A. O objetivo deste trabalho foi avaliar o efeito da megadose de vitamina A sobre os n?veis de retinol no colostro de pu?rperas da Maternidade Escola Janu?rio Cicco (MEJC),Natal-RN, assim como analisar a influ?ncia do estado nutricional materno na resposta a esta suplementa??o. O estudo foi do tipo transversal, com participa??o de 91 parturientes divididas em grupo controle (44 mulheres) e grupo suplementado (47 mulheres). No per?odo da manh? foram coletados sangue e leite (leite 0h). Em seguida uma c?psula de palmitato de retinil (200 000 UI ou 60 mg) foi fornecida ?s parturientes do grupo suplementado. Outra al?quota de colostro foi obtida ap?s 24h da primeira coleta (leite 24h). O retinol no leite e soro foi quantificado utilizando a Cromatografia L?quida de Alta Efici?ncia. A ingest?o de vitamina A foi avaliada pelo question?rio de freq??ncia de consumo alimentar. Os n?veis de retinol s?rico nos grupos controle e suplementado foram 35,9 ? 10,6 e 40,6 ? 10,9 ?g/dL, respectivamente. As mulheres apresentaram uma satisfat?ria ingest?o m?dia de vitamina A (1492,4 ?gRAE/dia), por?m com alta preval?ncia de consumo inadequado (23%). Foram encontrados valores m?dios de retinol no leite 0 e 24h do grupo controle de 99,1 ? 49,3 ?g/dL e 93,5 ? 50,3 ?g/dL (p>0,05) respectivamente. Ap?s a suplementa??o houve um aumento significativo nos n?veis de retinol do grupo suplementado, sendo encontrado valores de 102,0 ? 56,0 ?g/dL e 196,1 ? 74,0 ?g/dL (p<0,0001) para leite de 0 h e 24 h, respectivamente. As parturientes apresentaram diferentes respostas ? megadose. Mulheres com n?veis deficientes de retinol no leite transferiram mais retinol ao leite 24h do que as com n?veis adequados, encontrando um percentual de resposta equivalente a 326,1% e 86,5% de aumento, respectivamente (p< 0,0001). Apesar da aparente normalidade encontrada no soro, as lactantes s?o consideradas de risco ao desenvolvimento da defici?ncia de vitamina A, e a megadose foi eficaz nas primeiras 24h ap?s a suplementa??o e est? de acordo com os mecanismos propostos para transfer?ncia da vitamina A ao leite
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/12636 |
| Date | 12 June 2007 |
| Creators | Ribeiro, Karla Danielly da Silva |
| Contributors | CPF:18095640425, http://lattes.cnpq.br/8520928220989866, Arruda, Ilma Kruze Grande de, CPF:21703108434, http://lattes.cnpq.br/4003459675307504, Santos, Elizeu Antunes dos, CPF:41305655400, http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782221T9&dataRevisao=null, Dimenstein, Roberto |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-Gradua??o em Bioqu?mica, UFRN, BR, Bioqu?mica; Biologia Molecular |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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