Cited by 92Neuroendocrine regulation and behaviorSexual Differentiation and DisordersStress Responses and Cortisol

The meaning of weaning: Influence of the weaning period on behavioral development in mice

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Curley, James P., Jordan, Emily R., Swaney, William T., Izraelit, Asya, Kammel, Stella, Champagne, Frances A.·2009·Developmental Neuroscience

Abstract

Maternal care during the first week postpartum has long-term consequences for offspring development in rodents. However, mother-infant interactions continue well beyond this period, with several physiological and behavioral changes occurring between days 18 and 28 PN. In the present study, we investigate the long-term effects on offspring behavior of being weaned at day 21 PN versus day 28 PN. We found that male and female offspring engage in higher initial levels of social interaction if weaned at day 28 PN, as well as sexually dimorphic changes in exploratory behavior. Females who were themselves weaned earlier also appeared to wean their own pups earlier. Sex-specific effects of weaning age were found on levels of oxytocin and vasopressin V1a receptor density in the hypothalamus, central nucleus of the amygdala and nucleus accumbens. These results indicate that altering weaning age in mice may be a useful model for investigating the development of sexual dimorphism in neurobiology and behavior.

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  • In rodents there is a major shift in the location and density of OT receptors following parturition in the dams and after weaning in the pups.

    “For example, in rodents there is a major shift in the location and density of OT receptors following parturition in the dams and after weaning in the pups (72,73).”

    From Oxytocin and the development of parenting in humans (2010) · cites this paper as [72]

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Authors
Curley, J. P., Jordan, E. R., Swaney, W. T., Izraelit, A., Kammel, S., & Champagne, F. A.
Affiliations
Columbia University (US)
Venue
Developmental Neuroscience
Publisher
S. Karger AG
Published
2009
Volume
31
Issue
4
Pages
318-331
ISSN
  • 0378-5866 (ISSN-L)
  • 1421-9859
OpenAlex
W1998429750
Cited by
92
References
69
Citations by year
2026: 8 · 2025: 11 · 2024: 5 · 2023: 6 · 2022: 4 · 2021: 9 · 2020: 8 · 2019: 7 · 2018: 3 · 2017: 2 · 2016: 3 · 2015: 6 · 2014: 1 · 2013: 3 · 2012: 4
FWCI
6.94
Type
journal article
Language
en
Open access
Locations
  • Developmental Neuroscience (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institutes of Health (1dp2od001674-01)
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sexual Differentiation and Disorders
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
weaning age, maternal care, postpartum period, social interaction, exploratory behavior, sexual dimorphism, oxytocin, vasopressin V1a receptor, hypothalamus, central amygdala, nucleus accumbens, mother-infant interaction, mice
MeSH terms
Age Factors, Animals, Behavior, Animal, Brain, Critical Period, Psychological, Exploratory Behavior, Female, Male, Maternal Behavior, Mice, Inbred C57BL, Neuropsychological Tests, Oxytocin, Social Behavior, Weaning, Receptors, Vasopressin, Mice

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