Folic Acid Supplements May Not Be Safe for All Pregnant Women
Author Information
Author(s): Ernie Hood
Primary Institution: National Institute of Environmental Health Sciences
Hypothesis
Is there a subgroup of women for whom folic acid supplementation is associated with an increased risk of neural tube defects in their offspring?
Conclusion
The study suggests that certain genetic factors may make some women more susceptible to neural tube defects when taking folic acid supplements.
Supporting Evidence
- Folic acid supplementation has reduced the incidence of neural tube defects by 50–70%.
- Certain SNPs in the BHMT gene were significantly associated with neural tube defects.
- The significance of the association was strongest for mothers who took folate supplements before conception.
Takeaway
Some women might actually have a higher chance of having babies with problems if they take folic acid supplements, which is surprising because folic acid is usually thought to help.
Methodology
The researchers analyzed the genomes of 304 families with at least one individual having a neural tube defect, focusing on specific genetic variations related to folate metabolism.
Potential Biases
Potential bias due to the stratification method used in the analysis.
Limitations
The study may have grouped families by unidentified cofactors correlated with folate supplementation.
Participant Demographics
Families with at least one individual having a neural tube defect.
Statistical Information
Statistical Significance
p<0.05
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