microinjection of angiotensin ii also excited the activity of approximately one-quarter ( n = 8 ) of putative vasopressin-secreting neurons ( n = 28 ) in the hypothalamic supraoptic nucleus and these excitatory responses of putative vasopressin-secreting neurons were blocked ( n = 3 ) or attenuated ( n = 3 ) by pretreatment with the angiotensin ii antagonist saralasin , but not by isotonic saline ( n = 2 ) , in the subfornical organ .
C0003009
angiotensin ii
C0036193
saralasin