Fig. 3. Effect of zatebradine (ZAT) (dose equivalent to the Km
for each individual fish; see Materials and Methods) on (A) dorsal aortic
pressure (PDA), (B) peripheral resistance
(Rsys), (C) heart rate (fH), (D)
relative cardiac output (
) and (E)
relative stroke volume (VS). Values are means ±
S.E.M. (N=14). Asterisks indicate significant difference
from the control value (P<0.05).