Atlas One · Host Biology · Scale 03 — Molecular

Oxytocin

Oxytocin (9-aa neuropeptide from paraventricular and supraoptic hypothalamic nuclei) mediates uterine contraction, lactation, pair bonding, and social trust via OTR/Gαq signaling; reduces amygdala fear reactivity; investigated for autism spectrum disorder and PTSD.

Also known as: OT, OXT, OXTR, pitocin, neuropeptide, social bonding hormone, love hormone, oxytocin receptor

Scale 03 — MolecularScale
draftStatus
2026-06-08Last Reviewed
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oxytocin

Oxytocin

Oxytocin (9-aa neuropeptide from paraventricular and supraoptic hypothalamic nuclei) mediates uterine contraction, lactation, pair bonding, and social trust via OTR/Gαq signaling; reduces amygdala fear reactivity; investigated for autism spectrum disorder and PTSD.