Controlled Antenatal Thyroid Screening Study III: Effects of Gestational Thyroid Status on Brain Microstructure - Takeaways - MDSpire
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Impact of Maternal Thyroid Function During Pregnancy on Adolescent Brain Microstructure: Findings from the Controlled Antenatal Thyroid Screening Study III

  • By

  • Carolyn B McNabb

  • Anna Scholz

  • Laura Bloomfield

  • Raghav Bhargava

  • Charlotte Hales

  • Colin M Dayan

  • Sonya Foley

  • Peter N Taylor

  • John H Lazarus

  • Onyebuchi Okosieme

  • Marian Ludgate

  • Derek K Jones

  • D Aled Rees

  • May 9, 2025

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  • 1

    Untreated suboptimal gestational thyroid function (SGTF) is linked to higher mean diffusivity, indicating reduced axonal integrity in adolescents.

  • 2

    The study involved 75 adolescents aged 11-16, comparing untreated SGTF, treated SGTF, and normal gestational thyroid function.

  • 3

    Maternal thyroid hormone levels during pregnancy may influence adolescent brain microstructure, particularly white matter integrity.

  • 4

    Levothyroxine treatment during pregnancy may reverse microstructural changes associated with untreated SGTF in offspring.

  • 5

    Secondary outcomes did not show significant associations after corrections, indicating the need for further research on thyroid function and neurodevelopment.

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