Effects of Pae on cardiac structure and function in CHF rats. (A) For the comparison of LVIDd in different groups; (B) for the comparison of LVIDs in different groups; (C) for the comparison of EF in different groups; (D) for the comparison of FS in different groups. *, P<0.05 vs. Veh group; #, P<0.05 vs. Iso group. Veh, vehicle; Iso, isoprenaline; Pae, paeoniflorin; Cap, captopril; LVIDd, left ventricular internal diameter at end-diastole; LVIDs, left ventricular internal diameter at end-systole; EF, ejection fraction; FS, fractional shortening fraction.