17
views
0
recommends
+1 Recommend
2 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Efeito da fortificação com ácido fólico na redução dos defeitos do tubo neural Translated title: The effect of folic acid fortification on the reduction of neural tube defects

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Defeitos do tubo neural são malformações que ocorrem na fase inicial do desenvolvimento fetal, levando à anencefalia e espinha bífida; o ácido fólico é o mais importante fator de risco identificado até hoje. A prevalência relatada de defeitos do tubo neural coloca o Brasil no patamar dos países com as mais altas taxas no mundo. Inquéritos sobre consumo de folato entre gestantes brasileiras mostram ingestão altamente deficiente (< 0,6mg/dia). A ANVISA regulamentou para 2004 a adição de ácido fólico às farinhas de trigo e milho (0,15 mg/100g). A Pesquisa de Orçamento Familiar indicou que a disponibilidade média diária domiciliar de panificados/farináceos era 106,1g (aportando 0,16mg/dia folato). Porém se na Região Sul a disponibilidade era 144g/dia, no Norte e Centro-oeste não chegava a 70g/dia. Apesar de 40 países adotarem a fortificação obrigatória, apenas quatro avaliaram esta estratégia. Todos os estudos demonstraram impacto e reduções significativas na prevalência de defeitos do tubo neural, variando de 19 a 78%. A fortificação de alimentos com ácido fólico é uma intervenção inquestionável na prevenção primária; à luz dos conhecimentos atuais deve-se considerar os defeitos do tubo neural como uma "epidemia" passível de prevenção.

          Translated abstract

          Neural tube defects are congenital malformations that occur during initial fetal development, leading to anencephaly and spina bifida; folic acid deficiency is the most important risk factor identified to date. Brazil has one of the world's highest neural tube defect rates. Food consumption surveys among pregnant Brazilian women showed a high rate of inadequate folic acid intake (< 0.6mg/day). In 2004, the National Health Surveillance Agency (ANVISA) mandated the fortification of corn meal and wheat flour with folic acid (0.15mg/100g). The National Family Budget Survey estimated the average amount of bread/flour products available in households as 106.1g/day (contributing with 0.16mg folic acid/day). However, while in the South of the country the supply was 144g/day, in the North and Central West it barely reached 70g/day. Folic acid food fortification is mandatory in some 40 countries, but only four have assessed this strategy. The existing studies have all shown a significant impact, ranging from 19 to 78%. Folic acid fortification is an undeniably important intervention for primary prevention, and neural tube defects can now be considered a preventable epidemic.

          Related collections

          Most cited references96

          • Record: found
          • Abstract: not found
          • Article: not found

          Recommended dietary allowances

            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Spina bifida.

            Spina bifida results from failure of fusion of the caudal neural tube, and is one of the most common malformations of human structure. The causes of this disorder are heterogeneous and include chromosome abnormalities, single gene disorders, and teratogenic exposures. However, the cause is not known in most cases. Up to 70% of spina bifida cases can be prevented by maternal, periconceptional folic acid supplementation. The mechanism underlying this protective effect is unknown, but it is likely to include genes that regulate folate transport and metabolism. Individuals with spina bifida need both surgical and medical management. Although surgical closure of the malformation is generally done in the neonatal period, a randomised clinical trial to assess in utero closure of spina bifida has been initiated in the USA. Medical management is a lifelong necessity for individuals with spina bifida, and should be provided by a multidisciplinary team.
              Bookmark
              • Record: found
              • Abstract: not found
              • Book: not found

              Recommended dietary allowances

                Bookmark

                Author and article information

                Journal
                csp
                Cadernos de Saúde Pública
                Cad. Saúde Pública
                Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz (Rio de Janeiro, RJ, Brazil )
                0102-311X
                1678-4464
                January 2007
                : 23
                : 1
                : 17-24
                Affiliations
                [01] Brasília Distrito Federal orgnameUniversidade de Brasília orgdiv1Faculdade de Ciências da Saúde Brazil
                Article
                S0102-311X2007000100003 S0102-311X(07)02300103
                10.1590/S0102-311X2007000100003
                17187100
                efc1104a-5283-45bd-8879-85464972dbc9

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 18 May 2006
                : 04 September 2006
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 58, Pages: 8
                Product

                SciELO Public Health

                Self URI: Texto completo somente em PDF (PT)
                Categories
                Revisão

                Defeitos do Tubo Neural,Neural Tube Defects,Anencephaly,Anencefalia,Folic Acid,Ácido Fólico

                Comments

                Comment on this article