on the isolated perfused rat kidney , angiotensin i and angiotensin ii induced a concentration dependent renal vasoconstriction ( ec50 = 1.05 +/- 0.18 x 10 ( -8 ) and 0.11 +/- 0.05 x 10 ( -8 ) m ) which was competitively antagonized by saralasin , an angiotensin ii receptor antagonist .
C0003009
angiotensin ii
C0036193
saralasin