Fig. 3
From: Green tea extract catechin improves internal cardiac muscle relaxation in RCM mice
Inotropic responses to β-adrenergic stimulation in WT and cTnI193His RCM mice. Representative pressure-volume loops recorded at baseline (solid curve) and after administration of isoproterenol (ISO; dashed curve) in WT mice (a) and in cTnI193His RCM mice (b). c Left ventricular developed pressure (LVDP); (d) the heart rate (HR); (e) Ejection fraction (EF); (f) the maximal rate of contraction (+dP/dt max). Data are presented as means ± SE. *Significant difference compared between before and after ISO stimulation. * P <0.05