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The relationship between the placental serotonin pathway and fetal growth restriction

Suveena Ranzil1, David W Walker2, Anthony J Borg3

  • 1Department of Obstetrics and Gynaecology, Monash University, Australia; The Ritchie Centre, Hudson Institute of Medical Research, Clayton, Victoria, Australia.

Biochimie
|January 4, 2019
PubMed

Insights

Fetal growth restriction (FGR) is linked to neurodevelopmental issues. This study investigates if problems with placental serotonin synthesis contribute to FGR and these serious fetal complications.

Area of Science:

  • Reproductive biology
  • Developmental neuroscience
  • Obstetrics

Background:

  • Fetal growth restriction (FGR) is a pregnancy disorder with significant risks for offspring, including stillbirth and long-term neurodevelopmental problems.
  • The exact causes of FGR and its associated complications remain poorly understood.
  • Serotonin (5-HT) is produced in the placenta and is vital for fetal brain development, but its role in FGR pathophysiology is unclear.

Purpose of the Study:

  • To investigate the role of the placental serotonin (5-HT) synthetic pathway in the pathophysiology of FGR.
  • To explore the contribution of disrupted placental 5-HT synthesis to fetal neurodevelopmental complications in FGR.

Main Methods:

  • This study will analyze placental tissue samples from pregnancies affected by FGR and compare them to controls.
  • We will assess the expression and activity of key enzymes involved in serotonin synthesis within the placenta.
  • Correlation analysis will be performed to link placental 5-HT pathway function with markers of fetal growth and neurodevelopment.

Main Results:

  • Preliminary findings suggest alterations in placental serotonin synthesis in FGR cases.
  • Reduced expression or activity of specific 5-HT synthetic enzymes may be associated with placental insufficiency.
  • A potential link between impaired placental 5-HT production and fetal neurodevelopmental deficits is emerging.

Conclusions:

  • Disruption of the placental serotonin synthetic pathway may be a contributing factor to FGR pathophysiology.
  • Targeting placental 5-HT metabolism could offer novel therapeutic strategies for preventing FGR-related neurodevelopmental complications.
  • Further research is warranted to fully elucidate the mechanisms linking placental 5-HT to fetal development in FGR.

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