Figure 1A shows the chemical structure of 25-HC. As indicated in Figure 1B, Compared with other drug concentrations, 10mg/kg drug concentration can better improve the neurobehavioral score and increase the ratio of Bax/Bcl2, so we chose this drug concentration for the subsequent experiment. As presented in Figure 1C, cerebral infarction volume remarkably increased in the MCAO group than in the sham group (P<0.01). Nevertheless, after treatment with 25-HC, the infarct volume decreased noticeably (P<0.05). This evidence concerns the gene BCL2 and brain infarction.