To estimate the DCM rat model, daily food and water intake of rats, fasting blood glucose (FBG), serum insulin (INS), total cholesterol (TC), triglyceride (TG) in the serum, and indicators reflecting cardiac diastolic and contractile functions, including LVEF, FS, and E/A ratio of echocardiography were determined at 12 weeks. The gene discussed is INS; the disease is familial dilated cardiomyopathy.