Figure 5
From: Malignancy-associated metabolic profiling of human glioma cell lines using 1H NMR spectroscopy
Analysis of the correlation of the characteristic metabolites in the low-grade and high-grade groups. (A) The heatmap of the Pearson’s correlation coefficients for characteristic metabolites in the low-grade and high-grade groups. The colors refer to the pair-wise correlation coefficients ranging from 1 (red) to -1 (blue). (B) Metabolic connectivity identified by the Pearson’s correlation coefficients in the low-grade and high-grade groups. The red color reflects a positive correlation, while the blue color reflects a negative correlation.