Fig. 1

Overview of the mouse brain metabolome dataset. a Graphic illustration of the experimental design to acquire mouse brain metabolome dataset. b Number of the detected metabolites in each chemical class using HMDB classification scheme (GC-MS). c Percentage of each chemical class in the metabolites detected by GC-MS. d Top-20 mapped metabolic pathways of the annotated metabolites in GC-MS. e Number of the detected lipids in each chemical class. f Percentage of each lipid class