Skeletal muscle: a significant novel neurohypophyseal hormone-secreting organ
Vasopressin (arg8-vasopressin) and oxytocin are closely relalated hormones, synthesized as pre-hormones in the magnocellular neurons of the paraventricular Q6
and supraoptic nuclei of the hypothalamus. Vasopressin and oxytocin are secreted in response to a variety of physiological stimuli, serving such different functions as controlling water balance, milk ejection, uterine contraction, mood, and parental behavior (Lechan and Toni, 2000; Costa et al., 2014a).