ArticleNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2026
Lasting effects of early-life oxytocin treatment on LTP and episodic memory in a mouse model of Fragile X syndrome.
Article in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Early life Oxytocin treatment Attenuates Seizure Susceptibility in Male, but not Female,bioRxiv : the preprint server for biology · 2026Article
- The how and why for multiple forms of hippocampal LTP.Frontiers in synaptic neuroscience · 2026Review
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7 authors.
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Abstract
Deficits in episodic memory are a debilitating feature of Fragile X syndrome (FXS) and other congenital autism spectrum disorders (ASDs). There is evidence that oxytocin (OXT) treatments can improve sociability in persons with ASD and related animal models, encouraging the idea that benefits might extend to cognitive function. We tested this possibility in male FXS model, Fmr1-knockout (KO) mice. Intranasal treatments with OXT or saline were given daily during the second or fifth postnatal week, and effects on social behavior, spatial and episodic memory, and hippocampal synaptic plasticity were assessed in adulthood. Saline-treated Fmr1-KOs exhibited profound deficits in social recognition, object location memory, what-when-where components of episodic memory and long-term potentiation (LTP) in both the CA3-CA1 and lateral perforant path (LPP) systems; NMDAR-mediated components of LPP responses were also impaired. OXT treatments during the second week postnatal normalized all of these functions in Fmr1-KOs assessed in adulthood; this included restoration of initial stages of CA3-CA1 LTP and granule cell NMDAR-mediated currents. In hippocampal slices from naïve adult male Fmr1-KO mice, bath-applied OXT treatment restored LTP in CA1 but not the LPP, indicating pathway-specific effects. Intranasal OXT treatments during the 5
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