Transplanted conditioned medium (CM) or embryonic stem (ES) cells inhibit cardiac myocyte apoptosis at 2 weeks post doxorubicin-induced cardiomyopathy (DIC). Representative photomicrographs of total nuclei stained with DAPI in Blue (A-E) and Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) stained apoptotic nuclei in Red (F-J) and merged nuclei in Pink (K-O), (Scale bar = 50μm). Right panel histogram (P) shows quantitative apoptotic nuclei per section from Control (C), DOX (D), D+ culture medium (D+CC), D+CM and D+ES cell groups. Data is from the n=6-9 animals. *p<0.05 compared to C, and #p<0.05 vs D and D+CC.