Figure 2

Time course of changes in heart rate (Δ heart rate (HR), percentage of baseline values), after i.v. administration of nebivolol (open symbols) or vehicle (black symbols) in normotensive control rats (circles) and L-NAME hypertensive animals (squares). Each point shows the mean±s.e.m. of six rats. *P<0.05 vs. control rats by two-way analysis of variance (ANOVA) followed by Bonferroni post-test.