EHMT2 and hydrops fetalis: In the present study, we observed that euchromatic histone lysine methyltransferase 2 (EHMT2, also term G9a) was significantly overexpressed in the human endomyocardial biopsies of patients with dilated cardiomyopathy relative to 7 individuals with normal LV ejection fraction (LVEF) in the GEO database, indicating its possible in HF.