IDH1 and central nervous system cancer: Together with the elevation in glucose+taurine/tCho (1.72 ± 1.59 vs. 0.99 ± 0.86) and lactate/tCho (1.77 ± 1.78 vs. 0.79 ± 0.0.92) metabolite ratios, these observations suggest that IDH2 mutated gliomas might favor oxidative phosphorylation over aerobic glycolysis compared to IDH1 due to metabolic reprogramming associated with IDH mutation.