Oxytocin

Research Profile

Oxytocin is a nine-amino acid peptide with a disulfide bridge between Cys1 and Cys6, forming a cyclic structure essential for its biological activity. Produced in the paraventricular and supraoptic nuclei of the hypothalamus, it is released by the posterior pituitary and also acts as a neurotransmitter within the brain. Oxytocin is best known for its roles in uterine contraction during labor and milk ejection during lactation, but research has dramatically expanded its known functions to include social cognition, pair bonding, trust, anxiety reduction, and anti-inflammatory activity. It has approved clinical uses for labor induction and postpartum hemorrhage management, and is actively researched for autism spectrum disorders, PTSD, and cardiovascular regulation.