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Oxytocin and behavior: Lessons from knockout mice.

Heather K Caldwell1,2, Elizabeth A Aulino1, Angela R Freeman1

  • 1Department of Biological Sciences, Kent State University, Kent, Ohio, 44242.

Developmental Neurobiology
|August 12, 2016
PubMed
Summary
This summary is machine-generated.

Mouse models lacking oxytocin (Oxt) and its receptor (Oxtr) have significantly advanced our understanding of Oxt

Keywords:
aggressionmaternal behaviorsoxytocinoxytocin receptorsocial memory

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Area of Science:

  • Neurobiology
  • Behavioral Neuroscience
  • Genetics

Background:

  • Oxytocin (Oxt) is a neuropeptide crucial for modulating mammalian behaviors.
  • Pharmacological studies have identified Oxt's neural targets.
  • Genetic mouse models have become essential for dissecting Oxt's complex roles.

Purpose of the Study:

  • To review the contributions of oxytocin system knockout mouse models to behavioral neuroscience.
  • To highlight how genetic disruptions of Oxt and Oxtr have elucidated Oxt's functions.

Main Methods:

  • Utilizing genetically modified mice with targeted disruptions of the oxytocin (Oxt) gene.
  • Employing mouse models with deletions in the oxytocin receptor (Oxtr) gene.
  • Analyzing behavioral phenotypes in these knockout mouse lines.

Main Results:

  • Oxt and Oxtr knockout mice have provided critical insights into social recognition memory.
  • These models have illuminated the role of Oxt in maternal behaviors and aggression.
  • Knockout studies have also revealed Oxt's influence on various nonsocial behaviors.

Conclusions:

  • Mouse models with genetic disruptions of the Oxt system are invaluable tools for behavioral research.
  • These models have significantly expanded our knowledge of oxytocin's neurobiological functions.
  • Future studies can leverage these models to further explore Oxt's behavioral modulation across species.