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Perinatal development of human circadian rhythms

M Mirmiran1, S Lunshof

  • 1Netherlands Institute for Brain Research, Department of Neonatology and Obstetrical Gynecology, University of Amsterdam, The Netherlands.

Progress in Brain Research
|January 1, 1996
PubMed
Summary

The fetal biological clock develops early, influencing maternal circadian rhythms before birth. Disruption of this connection can impair infant circadian rhythm maturation.

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Chronobiology

Background:

  • Circadian rhythms are crucial for physiological regulation.
  • Understanding the development of these rhythms in utero is essential for infant health.
  • Primate and human fetal development of circadian rhythms is not fully understood.

Purpose of the Study:

  • To review the early development of circadian rhythms in primates, including humans.
  • To investigate maternal and fetal circadian rhythms during gestation and in preterm infants.
  • To propose mechanisms for fetal-maternal circadian interaction.

Main Methods:

  • Continuous 24-hour recordings of maternal and fetal circadian rhythms.
  • Analysis of circadian rhythms in preterm infants.
  • Review of existing literature on fetal development and circadian rhythms.

Main Results:

  • The fetal biological clock is endogenous and responds to maternal signals prenatally.
  • Maternal circadian rhythms directly influence fetal overt rhythms.
  • Fetal rhythms provide feedback to the mother via the placenta.
  • Disruption of fetal-maternal circadian interaction leads to rhythm disturbances and impaired infant maturation.

Conclusions:

  • The fetal biological clock is functional and interactive long before birth.
  • Maternal-fetal circadian synchrony is vital for healthy development.
  • Disruptions in this synchrony have significant consequences for gestational length and infant circadian rhythm maturation.

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