Figure 1: Schematic diagram of the protocol. Group-C: a control group (n=9). Group-IP: a ischemia-preconditioned group (n=10). Group-S: a sevofluranepreconditioned group (n=6). Group-5-HD-IP: a group which was given 5HD 10 min before ischemic preconditioning (n=6). Group-5-HD-S: a group which was given 5HD 10 min before sevoflurane exposure (n=6).