Figure 2: Effects of enalapril (20 mg/kg/day) on left ventricle cavity area, left ventricle collagen density and left ventricle wall thickness 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 = 11 to 12). Signifi cantly different from corresponding control values using ANOVA (** = p < 0.01, *** = p < 0.001).