the rates at which the amount of neurohypophysial hormone and opioid peptides decreased , and the changes in the ratios between the amount of vasopressin or oxytocin and opioid peptide in the neurohypophysis after dehydration and in the incubation medium after depolarization in vitro cast some doubt on , and can be explained by mechanisms other than co-localisation of the different peptides .
C0032017
neurohypophysial hormone
C0030095
oxytocin