As shown in Figures 2(i) and 2(j), Beclin-1 level in T3 of the propofol group was significantly lower than that in T3 of the control group (p < 0.05, T1: 15 min before cardiopulmonary bypass, T2: 15 min after cardiac arrest, and T3: 10 minutes after heart restated beating). This evidence concerns the gene BECN1 and cardiac arrest.