Multiple genes revealed to have an important prognostic value, with significant effects on survival probability of LGG (including the genes DRG2, LRRC41, NADK, PPP1R8, and C14orf23) and GBM patients (including the genes THRAP3, PSMB2, and MAPKAP1). The gene discussed is DRG2; the disease is glioblastoma.