Na segunda metade dessa década surgiram evidências de que a carência sub- clínica da vitamina A, sem sinais como xeroftalmia, mancha de Bitot e. Termos de indexação: hipovitaminose A, xeroftalmia, retinol sérico, ingestão . dos casos), espessamento conjuntival (81,1% dos casos) e mancha de Bitot (em . Las tres formas activas de la vitamina A en el cuerpo son el retinol, retinal, y ácido .. (comisura del ojo), manifestada por la presencia de manchas de Bitot.
|Published (Last):||9 July 2014|
|PDF File Size:||13.51 Mb|
|ePub File Size:||10.10 Mb|
|Price:||Free* [*Free Regsitration Required]|
Distribution of hipovitaminosis A in Brazil in the last four decades: A maioria dos trabalhos foi desenvolvida em grupos populacionais mqncha baixa renda.
This work presents a review of investigations carried out in Brazil in the last 40 years, concerning the diagnosis of hypovitaminosis A. Vitamin A deficiency has been established by means of biitot intake, clinical signs, low serum and hepatic retinol concentrations, and by the rose bengal staining test and rapid dark-adaptation test. The vitamin deficiency has been found in many Brazilian, in many states capitals, in big and small cities and also in rural areas.
Most of the research manchha has been undertaken with samples of populations of low socioeconomic level. As far as clinical signs are concerned, eye signs indicative of xerophtalmia were found mainly in the Northeastern Region. They included night blindness and conjunctival xerosis with or without Bitot’s spots.
More severe lesions such as irreversible changes or keratomalacia were rarely observed. Recent papers have shown the relationship between vitamin A deficiency and the increase in morbidity and mortality, mainly in pre-school children.
Batista Filho et al. Registrou-se, ainda, um caso de xerose corneana. Estes autores verificaram que a dieta era deficiente em vitamina A. O consumo de vitamina A era aparentemente adequado. Entretanto, como a maior parte da vitamina A ingerida foi proveniente de alimentos de origem vegetal, os autores levantaram a possibilidade de o grupo estudado constituir alvo de hipovitaminose A. Foi verificado que a dieta consumida era pouco variada e deficiente em vitamina A.
Em Cotia, SP, Roncada et al. Em Belo Horizonte, Araujo et al. Contudo, Desai et al. Sommer A, West KP. Oxford University Press; Third Report on the World Nutrition Situation.
International Vitamin A Consultative Group. Fourth Report on the World Nutrition Situation. Indicators for assessing vitamin A deficiency and their application in monitoring and evaluating intervention programmes. The role of zinc and vitamin A deficiency in diarrhoeal syndromes in developing countries. Proc Nutr Soc ; New issues in developing effective approaches for the prevention and control of vitamin A deficiency.
Food Nutr Bull ; Cad Nutr ; 8: Biochemical dee for the assessment of vitamin A status. Arq Catarin Med ; 1: Plasma retinol levels of pre school children in the sugar-cane area northeast Brazil.
Arch Latinoam Nutr ; Am J Clin Nutr ; Rev Bras Pesqui Med Biol ; 6: Simmons WK, Mello A. Blindness in the nine states of northeast, Brazil.
Index of /wp-content/uploads/2017/03/
Xerophtalmia and blindness in Northeast Brazil. Acta Amazon ; 8: Shrimpton R, Giugliano R. Consumo de alimentos e alguns nutrientes em Manaus, Amazonas. Acta Amazon ; 9: Response of retinol serum levels to macnha intake of vitamin A fortified sugar by pre-school children. Nutr Rep Int ; Ward JQ, Amoni D.
Diets of urban migrants in northeast Brazil: Food habits in southern Brazil. Rev Assoc Med Bras ; Acta Amazon ; Requirements of vitamin A, thiamin, riboflavin d niacin. Food consumption and dietary adequacy according to income in 1. Rev Bras Med a; Am J Clin Nutr b; J Pediat ; Assessment of marginal vitamin A deficiency in Brazilian children using the relative dose response procedure.
Marginal malnutrition and reduced physical work capacity of migrant adolescent boys in Southern Brazil. Evaluation of a program to overcome vitamin A and iron deficiencies in areas of poverty in Minas Gerais, Brazil. Romani SA, Amigo H.
Xeroftalmia y manchas de Bitot by Jorge Esteban Rodríguez Letrado on Prezi
Vitamin A status of young children in southern Brazil. Evaluation of rose bengal staining test and rapid dark-adaptation test for the field assessment of vitamin A status of preschool children in southern Brazil. Vitamin A activity of Buriti Mauritia Vinifera Mart and its effectiveness in the treatment and prevention of xerophtalmia. II – Hipovitaminose A. Vitamin A, folate, and iron concentrations in cord and maternal blood of intra-uterine growth retarded and appropriate birth weight babies.
Eur J Clin Nutr ; Vitamin A and neonatal antropometry. J Trop Pediatr ; Vitamin A status of pregnant women assessed by a biochemical indicator and a simplified food frequency questionnaire. Arch Latinoamer Nutr ; Nutr Res ; Liver vitamin A reserves of neonates, preschool children and adults dying of various causes in Salvador, Brazil. Liver levels of retinol in unselected necropsy specimens: Concentration of vitamin A in the liver of foetuses and infants dying of various causes in Brasilia, Brazil.
Int J Vitam Nutr Res ; Failure of massive oral doses of vitamin A to prevent hypovitaminosis. Rev Inst Med Trop ; Effect of an infection on vitamin A status of children as measured by the relative dose response RDR. Relationship between acute diarrhoea and low plasma levels of vitamin A and retinol binding protein.
Estudo Nacional da Despesa Familiar: Dados preliminares, tabelas selecionadas. Rio de Janeiro; Dutra de Oliveira JE, editor.
Cad Debate ; 4: Cad Debate ; Volume Especial: Stephensen CB, Gildengorin G. Serum retinol, the acute phase response, and the apparent misclassification of vitamin A status in the third National Health and Nutrition Examination Survey. Influence of morbidity on serum retinol of children in a community-based study in northern Ghana. bitpt
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License. Services on Demand Journal. How to cite this article.