IDH1 and glioblastoma: Notably, tumors with mutant IDH1 showed a slightly higher negative correlation (p < 0.05, Log2FC < 0) with FABP7 expression in GBM (Log2FC: −0.472) compared to LGG (Log2FC: −0.314), while the mutational statuses of the other oncogenes examined displayed highly positive correlations (p < 0.05, Log2FC > 0) with FABP7 expression, particularly in LGG (Figure S8B).