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Related Experiment Video

Updated: May 5, 2026

Author Spotlight: Studying the Impact of Maternal Dietary Deficiencies on Long-Term Offspring Health Outcomes
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Published on: June 28, 2024

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Maternal micronutrients and brain global methylation patterns in the offspring.

Pratiksha Sable, Karuna Randhir, Anvita Kale

    Nutritional Neuroscience
    |November 22, 2013
    PubMed
    Summary

    Maternal micronutrient imbalance alters offspring brain DNA methylation. Prenatal omega-3 fatty acids reversed these epigenetic changes, suggesting neuroprotective benefits.

    Keywords:
    CortexDocosahexaenoic acidFolic acidGlobal methylationHippocampusOmega-3 fatty acidsVitamin B12

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    Area of Science:

    • Epigenetics
    • Neuroscience
    • Nutritional Science

    Background:

    • Maternal nutrition impacts offspring non-communicable disease risk via epigenetics.
    • The role of one-carbon cycle micronutrients in offspring brain methylation is unknown.
    • Reversibility of early-life epigenomic marks by postnatal diet requires investigation.

    Purpose of the Study:

    • To investigate maternal micronutrient and omega-3 fatty acid effects on offspring brain DNA methylation.
    • To examine methylation patterns at birth, postnatal day 21, and 3 months in Wistar rats.
    • To assess the impact of postnatal diet on established epigenomic marks.

    Main Methods:

    • Pregnant Wistar rats received diets with varying folic acid and vitamin B12 levels, with or without omega-3 fatty acids.
    • Offspring brain global DNA methylation was analyzed at three developmental timepoints.
    • Maternal diets were altered post-delivery to assess postnatal dietary effects.

    Main Results:

    • Maternal micronutrient imbalance induced global hypomethylation at birth.
    • Offspring cortex showed hypermethylation at adulthood despite a postnatal control diet.
    • Prenatal omega-3 fatty acid supplementation normalized methylation by 3 months of age.

    Conclusions:

    • Maternal micronutrient imbalance has lasting effects on offspring brain methylation.
    • Omega-3 fatty acids demonstrate potential in reversing adverse methylation patterns.
    • Findings suggest omega-3s contribute to neuroprotection and cognitive function through epigenetic mechanisms.