Fig. 1From: Activation of the sigma-1 receptor exerts cardioprotection in a rodent model of chronic heart failure by stimulation of angiogenesisThe effects exerted by chronic stimulation of the sigma-1 receptor on cardiac functions. A Representative M-mode echocardiogram images in all groups; B Serum BNP concentration and heart weight/tibial length, reflecting the severity of heart failure and cardiac hypertrophy; C Statistical analysis of parameters relative to cardiac function; *P < 0.05; **P < 0.01; ***P < 0.005; ****P < 0.001Back to article page