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Adv Nutr. 2012 Jan;3(1):21-38. doi: 10.3945/an.111.000992. Epub 2012 Jan 5.

Folate and DNA methylation: a review of molecular mechanisms and the evidence for folate's role.

Author information

1
Division of Birth Defects and Developmental Disabilities, National Center on Birth Defects and Developmental Disabilities, Atlanta, GA, USA. kcrider@cdc.gov

Abstract

DNA methylation is an epigenetic modification critical to normal genome regulation and development. The vitamin folate is a key source of the one carbon group used to methylate DNA. Because normal mammalian development is dependent on DNA methylation, there is enormous interest in assessing the potential for changes in folate intake to modulate DNA methylation both as a biomarker for folate status and as a mechanistic link to developmental disorders and chronic diseases including cancer. This review highlights the role of DNA methylation in normal genome function, how it can be altered, and the evidence of the role of folate/folic acid in these processes.

PMID:
22332098
PMCID:
PMC3262611
DOI:
10.3945/an.111.000992
[Indexed for MEDLINE]
Free PMC Article

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