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Updated: Jul 20, 2026
07:37
Neural Tube Closure in Mouse Whole Embryo Culture
Published on: October 21, 2011
Neural tube defects and folate: case far from closed
Henk J Blom1, Gary M Shaw, Martin den Heijer
1Laboratory of Pediatrics and Neurology, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Post Office Box 9101, 6500 HB Nijmegen, The Netherlands. H.Blom@cukz.umcn.nl
Nature Reviews. Neuroscience
|August 23, 2006
Summary
Folic acid supplements prevent many neural tube defects by supporting cellular methylation. Further research into this methylation hypothesis may reveal new prevention strategies for these common birth defects.
Area of Science:
- Developmental biology
- Genetics
- Nutritional science
Background:
- Neural tube closure is crucial during embryogenesis, and its failure causes severe congenital malformations.
- Neural tube defects (NTDs) are common, leading to significant morbidity and mortality.
- Periconceptional folic acid supplementation is a proven intervention, preventing 50-75% of NTDs, but its mechanism remains unclear.
Purpose of the Study:
- To explore the underlying mechanisms of folic acid's preventative effects on neural tube defects.
- To investigate the role of the methylation hypothesis in folic acid's efficacy.
Main Methods:
- Review of biochemical, genetic, and epidemiological evidence.
- Analysis of the proposed link between folic acid and cellular methylation processes.
Main Results:
- The methylation hypothesis posits that folic acid enhances cellular methylation reactions.
- This hypothesis provides a potential biochemical pathway for folic acid's protective effects against NTDs.
Conclusions:
- Understanding the methylation mechanism is key to fully appreciating folic acid's role in preventing neural tube defects.
- Further investigation of the methylation hypothesis could lead to novel strategies for NTD prevention.
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