The development of circadian rhythms in the fetus and neonate.

摘要: The circadian time-keeping system is the neural that allows predictive adaptation of individuals to reproducible 24-hour day/night alternations our planet. A biological clock, suprachiasmatic nucleus, receives environmental information and imposes a pattern physiological functions. Since nucleus develops early in gestation rhythms are present fetus newborn, seems be functional fetal life can receive inputs through mother. neonate moves an environment which main time giving signal light:dark cycle. Teleologically, term newborn should fit face this challenge. But may quite different for preterm infant trades it was previously exposed timeless Neonatal Intensive Care Nursery. Scientists physicians seek new experimental clinical approaches answer challenging questions perinatal chronomedicine.