As TrkB.T1 is the predominantly expressed isoform compared with TrkB.FL in LGG and GBM, we used differential gene correlation analysis (DGCA)32 to find differentially correlated genes whose expression was positively correlated with NTRK2 in LGG or GBM and anti-correlated with NTRK2 in normal brain. The gene discussed is NTRK2; the disease is glioblastoma.