Description
Oxytocin is an endogenous peptide neurohormone that does not cross the blood-brain barrier. Oxytocin binds the oxytocin receptor (OXTR) and exhibits neuromodulatory, antinociceptive, antidepressant, anxiolytic, and other activities; it is involved with feelings of trust, memory, intimacy, and fidelity. Oxytocin also inhibits acid-sensing ion channels and may be used as a biomarker of bone mineral density.
References
Breuil V, Panaia-Ferrari P, Fontas E, et al. Oxytocin, a new determinant of bone mineral density in post-menopausal women: analysis of the OPUS cohort. J Clin Endocrinol Metab. 2014 Apr;99(4):E634-41. PMID: 24446658.
Yuen KW, Garner JP, Carson DS, et al. Plasma oxytocin concentrations are lower in depressed vs. healthy control women and are independent of cortisol. J Psychiatr Res. 2014 Apr;51:30-6. PMID: 24405552.
Qiu F, Qiu CY, Cai H, et al. Oxytocin inhibits the activity of acid-sensing ion channels through the vasopressin-1a receptor in primary sensory neurons. Br J Pharmacol. 2014 Feb 15. [Epub ahead of print]. PMID: 24641084.
Evans SL, Dal Monte O, Noble P, et al. Intranasal oxytocin effects on social cognition: A critique. Brain Res. 2013 Nov 14. [Epub ahead of print]. PMID: 24239931.