Assertion: oxytocin | /r/HasProperty | a 9-amine neuropeptide
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Source sentences:
text: Oxytocin, a 9-amine neuropeptide synthesized in the paraventricular nucleus (PVN) and the supraoptic nucleus of the hypothalamus, is secreted from the posterior pituitary into the systemic circulation, playing an essential role in mammalian labor, lactation, maternal bonding, and social affiliation.