Fig. 2

Effects of a 6-week treatment with sham stimulation (SS, white circles, n = 11), sham stimulation plus metoprolol (SSM, gray circles, n = 11), and vagal stimulation plus metoprolol (VSM, black circles, n = 12) on telemetry hemodynamics in conscious rats with CHF. Each point presented the weekly averaged heart rate (a) and the weekly averaged mean blood pressure (b) of rats with CHF. Data are expressed as mean ± SEM. *P < 0.05; **P < 0.01 vs. the pre-treatment value of each group (week 0); ^#P < 0.01 vs. SS group