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Modifying Levels of Maternal Dietary Folic Acid or Choline to Study the Impact of Deficiencies on Offspring Health Outcomes
Published on: June 28, 2024
Genetic variation: impact on folate (and choline) bioefficacy
Allyson A West1, Marie A Caudill
1Division of Nutritional Sciences and Genomics, Cornell University, Ithaca, NY, USA.
Genetic variations in folate-metabolizing genes significantly impact folate and choline bioefficacy. Understanding these genetic factors is crucial for updating dietary recommendations and ensuring optimal nutrient status.
Area of Science:
- Nutritional biochemistry
- Genetics
- Metabolism
Background:
- Folate and choline are essential water-soluble micronutrients vital for one-carbon metabolism, acting as methyl donors in homocysteine conversion to methionine.
- Nutrient inadequacy can disrupt one-carbon metabolism, leading to altered circulating folate and plasma homocysteine levels.
- Genetic variants in folate metabolism, particularly MTHFR 677C > T homozygosity, demonstrably affect nutrient status markers.
Purpose of the Study:
- To review the influence of genetic variants in folate-metabolizing genes on the bioefficacy of folate and choline.
- To examine nutrient-gene and gene-gene interactions.
- To highlight the necessity of considering genetic variations in future dietary recommendations for folate and choline.
Main Methods:
- Literature review focusing on genetic variants in folate-metabolizing genes.
- Analysis of studies investigating folate and choline bioefficacy.
- Consideration of nutrient-gene and gene-gene interactions.
Main Results:
- Genetic variants in folate-metabolizing genes significantly modulate folate and choline bioefficacy.
- Specific variants, like MTHFR 677C > T, have a pronounced effect on folate status markers.
- Interactions between nutrients and genes, as well as gene-gene interactions, play a role in nutrient metabolism.
Conclusions:
- Genetic variations are critical determinants of folate and choline bioefficacy.
- Current dietary recommendations may need refinement to account for individual genetic differences.
- Personalized nutrition strategies incorporating genetic information are essential for optimizing folate and choline status.
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