EIF4A1 and astrocytoma (excluding glioblastoma): Significantly elevated protein levels were found for eIF4A1 (I: p < 0.01, II: p < 0.01, III: p < 0.001, IV: p < 0.001; Figure 2D) and p-eIF4G (I: p < 0.01, II: p < 0.05, III: p < 0.01, IV: p < 0.01; Figure S1J) in astrocytomas compared to CCBT.