Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-02-17T18:38:35Z
No. of bitstreams: 1
JoseEdsonDeMoura_TESE.pdf: 4337813 bytes, checksum: 465ccd15386219a1bb1458a721cdce42 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-02-17T20:27:42Z (GMT) No. of bitstreams: 1
JoseEdsonDeMoura_TESE.pdf: 4337813 bytes, checksum: 465ccd15386219a1bb1458a721cdce42 (MD5) / Made available in DSpace on 2017-02-17T20:27:42Z (GMT). No. of bitstreams: 1
JoseEdsonDeMoura_TESE.pdf: 4337813 bytes, checksum: 465ccd15386219a1bb1458a721cdce42 (MD5)
Previous issue date: 2013-03-19 / A nutri??o tem sido considerada como um dos fatores relevantes para um bom crescimento e desenvolvimento em crian?as e adolescentes. No c?rebro, durante seu per?odo de r?pido crescimento, os micronutrientes tem apresentado um papel importante nos processos neurol?gicos, principalmente o zinco por ser um micronutriente essencial, que contribui para a forma??o da estrutura cerebral, para o desenvolvimento neuropsicol?gico e motor. Desta forma, esse micronutriente pode interferir nas fun??es cognitivas, tais como a mem?ria, aten??o, intelig?ncia, linguagem, habilidades psicomotoras e fun??es emocionais. Considerando que a literatura apresenta relatos pouco esclarecedores sobre a rela??o entre o zinco e o desenvolvimento cognitivo, principalmente em escolares, este estudo avaliou por meio da aplica??o de t?cnicas neuropsicol?gicas validadas (WISC II), o significativo papel da sua suplementa??o (5 mg/dia, durante 3 meses), na cogni??o em escolares com idade de 6 a 9 anos, sem d?ficit marginal de zinco. Os resultados mostraram que os escolares apresentaram melhores resultados ap?s o per?odo de suplementa??o, em habilidades neuropsicol?gicas especificas n?o verbal. Conclu?mos que a suplementa??o de zinco pode contribuir significativamente para o desempenho escolar. Estudos adicionais s?o necess?rios para esclarecer o impacto dessa suplementa??o em outra popula??o e com amostra mais ampla e de prefer?ncia usando o experimento duplo cego. / Zinc is an important micronutrient to human being and its deficiency among schoolchildren is deleterious to growth and development, immune competence, and cognitive function. However, the effect of zinc supplementation on cognitive function is still poorly understood. The purpose of our study was to evaluate the effect of oral zinc supplementation (5 mg Zn/d during 3 months) on Full Scale Intelligence Coefficient (FSIQ), Verbal Intelligence Quotient (VIQ), and Performance Intelligence Quotient (PIQ), using a Wechsler Intelligence Scale for Children (WISC III). We studied 36 schoolchildren, aged 6 and 9 years (7.8 ? 1.1). The tests were used in basal conditions before and after zinc supplementation. There was no difference in FSIQ by gender and age. Zinc improved VIQ, only in Information subtest (p = 0.009). But, its effects were more significant in relation to PIQ because improved the subtests Picture Completion, Picture Arrangement, Block Design and Object Assembly (p = 0.0001, for all subtests). In conclusion, zinc supplementation improved specific cognitive abilities, thereby positively influencing the academic performance of schoolchildren, even those without apparent marginal zinc deficiency.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/22040 |
| Date | 19 March 2013 |
| Creators | Moura, Jos? Edson de |
| Contributors | 07658281115, Almondes, Katie Moraes de, 00094342407, Bruno, Selma Sousa, 44456042400, Alves, Nelson Torro, 25060820858, Silva, S?rgio Leme da, 01512058840, Brand?o Neto, Jos? |
| Publisher | PROGRAMA DE P?S-GRADUA??O EM CI?NCIAS DA SA?DE, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
Page generated in 0.0062 seconds