ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2025
PVN-NAc Shell-VP Circuit OT and OTR Neurons Regulate Pair Bonding via D2R and D1R.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Tactile stimulation reverses painful stimuli outcomes via PVN-VTA oxytocin circuitry and dopaminergic regulation.Communications biology · 2025Article
- Oxytocin receptors mediate social selectivity in prairie vole peer relationships.Current biology : CB · 2025Article
- The Promise of Intranasal Oxytocin in Treating Borderline Personality Disorder: A Narrative Review.Brain sciences · 2025Review
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16 authors.
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Abstract
Previous studies have found that several neurochemicals are involved in formation of pair bonding. However, the circuit mechanisms underlying pair bonding, especially how these chemicals interact in this circuit to regulate pair bonding, remain unclear. Using male mandarin voles, the present study shows that cohabitation with a partner increased the frequency of spontaneous excitatory postsynaptic current (sEPSC) of paraventricular nucleus (PVN) oxytocin (OT) neurons projecting to the nucleus accumbens (NAc) shell. Optogenetic activation of PVN OT neurons projecting to the NAc shell reduced the activity of D2 medium spiny neurons (MSNs) but increased the activity of D1 MSNs in the NAc shell. Bath application of OT caused a long-term depression (LTD) of evoked excitatory postsynaptic current (eEPSC) in NAc shell D1/D2 MSNs in the noncohabitated male voles. This OT-induced LTD in the NAc shell D1/D2 MSNs was suppressed by 7 d of cohabitation. NAc shell oxytocin receptor (OTR) MSNs projecting to the ventral pallidum (VP) were D1R/D2R positive. Chemogenetic activation or inhibition of OTR MSNs in the NAc shell projecting to the VP facilitated or disrupted the pair bond formation, respectively. The facilitatory effects of OTR MSN activation on pair bond formation could be blocked by D2 antagonist, but not D1 antagonist. These results suggest that OT and OTR neurons in the PVN-NAc shell-VP circuit regulate pair bonding via different activities of D1/D2 MSNs.
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