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Periconception Maternal Folate Status and Human Embryonic Cerebellum Growth Trajectories: The Rotterdam Predict Study

Irene V Koning1, Irene A L Groenenberg2, Anniek W Gotink2

  • 1Department of Obstetrics and Gynaecology, Erasmus University Medical Center, Rotterdam, the Netherlands; Department of Paediatrics, subdivision of Neonatology, Sophia Children's Hospital, Rotterdam, the Netherlands.

Plos One
|October 23, 2015
PubMed

Insights

Maternal folate status impacts early embryonic cerebellar growth. Starting folic acid before conception, compared to after, was linked to larger cerebellar measurements and growth rates during early pregnancy.

Area of Science:

  • Neuroscience
  • Developmental Biology
  • Obstetrics & Gynecology

Background:

  • Periconceptional maternal folate status is crucial for embryonic development.
  • Early embryonic cerebellar growth is vital for neurodevelopment.
  • The impact of folate timing on embryonic cerebellar development requires further investigation.

Purpose of the Study:

  • To investigate the association between periconceptional maternal folate status and embryonic cerebellar size and growth trajectories.
  • To determine if the timing of folic acid supplementation influences early cerebellar development.

Main Methods:

  • Prospective periconceptional cohort study.
  • Weekly transvaginal 3D-ultrasound measurements of embryonic cerebellar dimensions (TCD, LCD, RCD) between 7-12 weeks gestational age.
  • Linear mixed models to analyze associations between folic acid initiation timing, maternal red blood cell folate levels, and cerebellar growth metrics relative to crown-rump length (CRL) and gestational age (GA).

Main Results:

  • Preconceptional folic acid initiation was associated with significantly larger cerebellar diameters (TCD, LCD, RCD) per millimeter increase in CRL.
  • Folic acid initiation before conception correlated with proportional cerebellar growth (e.g., TCD/CRL).
  • Maternal red blood cell folate levels in the third quartile (1538-1813 nmol/L) showed the highest embryonic cerebellar growth.

Conclusions:

  • Periconceptional maternal folate status is significantly associated with human embryonic cerebellar development.
  • The timing of folic acid supplementation may influence early cerebellar size and growth.
  • Further research is needed to understand the long-term implications for neurodevelopmental outcomes.

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