Fig. 3. Time course of the effects of intra-arterial injection of (1) 50 µl
vehicle (open bars, N=16), (2) 50 pmol NP
(cross-hatched bars,
N=8), and (3) 250 pmol NP
(filled bars, N=8) on (A)
fV, (B) VAMP, (C)
VTOT, (D) mean PDA and (E)
fH, in unanesthetized trout. The arrow indicates when the
injection was given. *P<0.05 vs vehicle at
corresponding post-injection period and vs pre-injection value.