“… angiotension II antagonist saralasin (2.5 … plasma oxytocin concentration after 10 min (5.7 +/- 1.1 pg/ml, n = 7 vs. 13.2 +/- 3.2 pg/ml, n = 8), … not prevent naloxone-provoked excitation of oxytocin secretion, measured by radioimmunoassay (6 min after naloxone in the i.c.v.”