Lifespan oxytocin signaling: Maturation, flexibility, and stability in newborn, adolescent, and aged brain

Area of Science:

• Neurobiology
• Neuroendocrinology
• Developmental Neuroscience

Background:

• Oxytocin (OT) is a hypothalamic neuropeptide with significant prosocial effects.
• OT shows potential for treating socioemotional deficits in autism spectrum disorders and schizophrenia.
• Lifespan trajectories of OT system development and activity are under-investigated.

Purpose of the Study:

• To review the role of oxytocin across three distinct life periods: early postnatal, puberty/adolescence, and elderly.
• To highlight the implications of OT in neurodevelopmental disorders, drug consumption, stress, aggression, and aging-related social deficits.
• To synthesize current knowledge on OT system development and function throughout the lifespan.

Main Methods:

• Mini-review synthesizing existing literature.
• Focus on three key developmental periods: neonatal, puberty/adolescence, and elderly.
• Discussion of OT's role in GABAergic switch, drug use, stress, aggression, and neurodegeneration.

Main Results:

• Neonatal OT influences the GABA excitation-to-inhibition switch, relevant to neurodevelopmental disorders.
• During puberty/adolescence, OT impacts drug consumption, stress, and aggression.
• In elderly individuals, OT may preserve social function and ameliorate neurodegenerative symptoms.

Conclusions:

• Oxytocin system function varies significantly across the lifespan.
• Targeting oxytocin may offer therapeutic benefits for various neurodevelopmental, psychiatric, and neurodegenerative conditions.
• Further research into lifespan OT trajectories is crucial for understanding its full therapeutic potential.