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Neural Tube Defects and Maternal Intake of Micronutrients Related to One-Carbon Metabolism or Antioxidant Activity
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Aug 29 2012
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Source: Birth Defects Res A Clin Mol Teratol. 94(11):864-874
[PDF-84.13 KB]
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Alternative Title:Birth Defects Res A Clin Mol Teratol
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Description:Background
Maternal nutritional status has been evaluated to clarify its role in development of neural tube defects (NTDs). Maternal folate intake during pregnancy has been closely evaluated for its association with NTDs.
Objective
The study objective was to examine associations between NTDs and other dietary periconceptional micronutrient intake, particularly nutrients involved in one-carbon metabolism or antioxidant activity.
Design
Using data from the National Birth Defects Prevention Study, 1997–2005, logistic regression models were used to estimate the relative risk of NTDs based on maternal micronutrient intake.
Results
Results were stratified according to folic acid supplement use, race/ethnicity, and maternal body mass index. Analyses included 954 cases (300 with anencephaly, 654 with spina bifida) and 6268 controls. Higher intakes of folate, thiamin, betaine, iron, and vitamin A were associated with decreased risk of anencephaly among some ethnic and clinical groups. In some groups, higher intakes of thiamin, riboflavin, vitamin B6, vitamin C, vitamin E, niacin, and retinol were associated with decreased risk of spina bifida.
Conclusion
In addition to folic acid, other micronutrients, including thiamin, betaine, riboflavin, vitamin B6, vitamin C, vitamin E, niacin, iron, retinol, and vitamin A, may decrease the risk of NTD occurrence.
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Pubmed ID:22933447
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Pubmed Central ID:PMC3518275
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Volume:94
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Issue:11
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