Chapter 9 Pre-natal development of a hypothalamic biological clock
Abstract
The available evidence indicates that a biological clock oscillates in the mammalian fetus and that the fetal clock is entrained by redundant circadian signals from the mother. An entrainable biological clock during fetal life helps the developing mammal more readily prepare for life in the outside world. In humans, the early establishment of maternal-infant synchrony may help the infant maximize its responsiveness to the outside world.
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In humans, melatonin and dopamine receptors appear as early as gestational week 18 in the fetal SCN, suggesting melatonin and dopamine may serve as the primary communicators of circadian information for the fetus.
“In humans, melatonin and dopamine receptors appear as early as gestational week 18 in the fetal SCN26–28, suggesting melatonin and dopamine may serve as the primary communicators of circadian information for the fetus29,30.”
From Rhythms of life: circadian disruption and brain disorders across the lifespan (2019) · cites this paper as [26]
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- Authors
- Reppert, S. M.
- Affiliations
- Harvard University (US)
- Corresponding author
- Reppert, Steven M.
- ORCID
- Reppert, Steven M.
- Venue
- Progress in Brain Research
- Publisher
- Elsevier
- Published
- 1992
- Volume
- 93
- Pages
- 119-132
- ISSN
- 0079-6123 (ISSN-L)
- OpenAlex
- W2198479210
- Cited by
- 43
- References
- 54
- Citations by year
- 2026: 1 · 2023: 1 · 2022: 1 · 2020: 1 · 2018: 2 · 2016: 3 · 2012: 1
- FWCI
- 2.35
- Type
- book chapter
- Language
- en
- Open access
- closed
- Locations
- Progress in brain research (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
- Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
- Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
- Keywords
- biological clock, circadian rhythm, fetal development, hypothalamus, entrainment, infant development
- MeSH terms
- Animals, Circadian Rhythm, Female, Embryonic and Fetal Development, Gestational Age, Hormones, Humans, Hypothalamus, Pregnancy
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