FIGURE 6.

PD98059 increases the number of terminal deoxynucleotidyl transferase dUTP nick end labelling (TUNEL)‐positive cells. (A) Representative myocardial sections subjected to the TUNEL assay. TUNEL‐positive cells are shown in green. The 4′,6‐diamidino‐2‐phenylindole (DAPI)‐stained nuclei are shown in blue. The α‐SCA‐positive cardiomyocytes are shown in red. (B) The percentage of TUNEL‐positive cells among the total number of cells. Data are represented as mean ± standard error of mean (n = 6; **P < .01 vs IR; #P < .05 vs. NRG‐1). CON, sham‐operated control; IR, ischaemia‐reperfusion; NRG‐1, IR + NRG‐1; PD, PD98059