Figure 1: Effects of enalapril (20 mg/kg/day) on left ventricular end diastolic blood pressure and maximum positive dP/dt in cardiomyopathic Bio TO-2 dilated hamsters. Early treatment was administered from 60 to 200 days of age, late treatment from 120 to 200 days of age and prolonged treatment from 120 to 250 days of age. Mean s.e.m. (n = 10 to 12). Significantly different from corresponding control values using ANOVA (* = p < 0.05, ** = p < 0.01, *** = p < 0.001).