Cited by 55Neuroendocrine regulation and behaviorHypothalamic control of reproductive hormonesNeurogenesis and neuroplasticity mechanisms

Sex Differences in the Embryonic Development of the Central Oxytocin System in Mice

Tamborski, S., Mintz, E. M., Caldwell, H. K.·2016·Journal of Neuroendocrinology

Abstract

Recent studies suggest that oxytocin (OXT) may be important for organising the neural circuitry that underlies adult social behaviour. Although most of the work exploring these effects has focused on early postnatal development, there is evidence that OXT may also be important during foetal development. However, without an understanding of how the OXT system develops, the ability to functionally link OXT in foetal life to adult behaviour is limited. To understand where and when OXT could be acting during embryonic development to affect the organisation of neural substrates, we examined the development of the mouse OXT system from embryonic day (E) 12.5 through postnatal day (PND) 2 using OXT receptor (OXTR) binding and a quantitative polymerase chain reaction. In both males and females, OXTR binding was observed by E16.5 in the ventricular and subventricular zones, as well as the developing amygdala. In males, OXT mRNA was not detectable until PND2, whereas it was detectable by E16.5 in females. OXTR mRNA was detected by E12.5 in both sexes, although females appear to have more OXTR mRNA during foetal development than males. The present study is significant because it is the first to reveal an unexpected sex difference in the development of the OXT system and supports the possibility that OXT during foetal development may contribute to sex differences in adult behaviour.

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Crossref · 10.1111/jne.12364

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  • Sex differences in oxytocin's behavioral effects can be found in rodents.

    “Although sex differences in oxytocin and oxytocin receptor distribution have not been reported, sex differences in oxytocin’s behavioral effects can be found in rodents (Miller and Caldwell, 2015; Tamborski et al., 2016; Hammock and Levitt, 2013).”

    From Oxytocin neurons mediate the effect of social isolation via the VTA circuits (2022) · cites this paper as Tamborski et al., 2016

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Authors
Tamborski, S., Mintz, E. M., & Caldwell, H. K.
Affiliations
Kent State University (US)
Corresponding author
Caldwell, H. K.
Venue
Journal of Neuroendocrinology
Publisher
Wiley
Published
2016-04
Volume
28
Issue
4
ISSN
  • 0953-8194 (ISSN-L)
  • 1365-2826
OpenAlex
W2236417990
Cited by
55
References
62
Citations by year
2026: 1 · 2025: 5 · 2024: 5 · 2023: 1 · 2022: 9 · 2021: 12 · 2020: 2 · 2019: 5 · 2018: 7 · 2017: 5 · 2016: 3
FWCI
10.48
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neuroendocrinology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • NSF IOS (1353859, 1021957)
  • Department of Biological Sciences at Kent State University
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
oxytocin, oxytocin receptor, sex differences, embryonic development, fetal development, amygdala, mice
MeSH terms
Amygdala, Animals, Cerebral Ventricles, Female, Male, Pregnancy, Radioligand Assay, Sex Characteristics, Time Factors, Receptors, Oxytocin, Embryonic Development, Mice

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