Release of vasoactive intestinal polypeptide (VIP) in breast-feeding women.
Blood samples were collected in peripheral venous blood of ten postpartum women before, during and after breast-feeding. Vasoactive intestinal polypeptide (VIP) and prolactin (PRL) were measured radioimmunochemically. A parallel significant increase in the VIP and PRL concentrations was observed following breast-feeding. VIP increased from a median control value of 4.5 pmol . 1(-1) to 18 pmol . 1(-1), and PRL increased from 2.8 U . 1(-1) to 5.2 U . 1(-1). A positive but insignificant correlation between corresponding PRL and VIP values was found.
D000328:Adult; D001942:Breast Feeding; D005260:Female; D006801:Humans; D049590:Postpartum Period / Q000097:blood*; D011247:Pregnancy; D011388:Prolactin / Q000097:blood; D011863:Radioimmunoassay; D014660:Vasoactive Intestinal Peptide / Q000097:blood*
D014660:Vasoactive Intestinal Peptide; D011388:Prolactin