Nonischemic DCM, which is a common heart muscle pathology, is influenced by genetic factors, and the well-recognized genes that are implicated include titin (TTN) truncating variants, followed by lamin A/C (LMNA), and various desmosomal and cytoskeletal protein genes like DES, DSP, and FLNC. This evidence concerns the gene LMNA and familial dilated cardiomyopathy.