Fig. 4

Comparison of plasma neurohumoral levels after a 6-week treatment with SS (white circles, n = 11), SSM (gray circles, n = 11), and VSM (black circles, n = 12) in rats with chronic heart failure. a Plasma levels of norepinephrine. b Plasma levels of epinephrine. c Plasma levels of brain natriuretic peptide (BNP). **P < 0.01 vs. SS group; ^#P < 0.05; ^##P < 0.01 vs. SSM group