OGDHL and familial dilated cardiomyopathy: Regarding that the myocardial fibrosis is the basic pathophysiological change of DCM, we analyzed the correlation between the fibrosis area detected by Masson’s trichrome staining and the OGDHL expression detected by qRT-PCR and found that the expression of OGDHL at mRNA level was negatively correlated with the fibrosis area (r = –0.84, P = 0.009) (Figures 6A–C).