Brain trauma may induce the overexpression of c-fos gene in the cortex and hippocampus, and the intensity of expression may vary at different times. The expression of Fos protein may serve as a clinical indication of the time of brain injury.

• 脑创伤可以导致伤侧皮质和海马c fos基因蛋白过表达 ,而且各时间段表达强度不同 ,观察c fos基因表达强度 ,可以作为临床提示脑部受伤时间的参考指标。