Olaparib affects gene expression in transplanted rat hearts. (A) c‐Jun, (B) bax, (C) caspase‐12, (D) caspase‐3, (E) SOD‐1, (F) GPX4, (G) catalase, (H) NOX2 and (I) NOX4. Data shown are means ± SEM. n = 6 rats per group. *P < 0.05, significantly different from control.