When CP levels were compared among the different NYHA groups in patients with ischemic cardiomyopathy, there was no significant difference among three groups (308.69 ± 74.89,308.68 ± 68.36, and  363.14 ± 84.65, P > 0.05) (Figure 2). The gene discussed is CP; the disease is ischemic cardiomyopathy.