Images Lithium enhances repair of IR-induced DSBs in hippocampal neurons. Lithium enhanced the percentage of cells with IR-induced T2609 foci in mouse HT-22 neuronal cells via induction of DNA-PK dependent NHEJ repair. Inhibition of the PKM2 gene (accompany 2 Gy/each radiation) will significantly decrease the tumor volume. Inhibition of the PKM2 gene (accompany 4 Gy/each radiation) will significantly increase the survival. Population with higher PKM expression will have lower survival. Imagological and histological examination with shPKM2. “Tennessee” the lab mascot