Cardiogen peptide likely refers to cardiac peptides, which are proteins secreted by the heart and blood vessels. These peptides play a crucial role in maintaining cardiovascular health and can be involved in the development of heart failure. Specifically, natriuretic peptides like atrial natriuretic peptide (ANP) and B-type natriuretic peptide (BNP) are key cardiac peptides, and their levels can be measured in blood to help diagnose and monitor heart failure.