Fig. 6

Metabolic pathways related to ¹H NMR based differential metabolites in rats. (1, Alanine, aspartate and glutamate metabolism; 2, Glycine, serine and threonine metabolism; 3, D-Glutamine and D-glutamate metabolism; 4, Taurine and hypotaurine metabolism; 5, Starch and sucrose metabolism; 6, Glutathione metabolism; 7, Pyruvate metabolism; 8, Aminoacyl biosynthesis; 9, Glyoxylate and dicarboxylate metabolism; 10, Arginine biosynthesis; 11, Arginine and proline metabolism; 12, Glycolysis/Gluconeogenesis; 13, Methyl butyrate metabolism; 14, Citrate acid cycle (TCA cycle); 15, Primary bile acid biosynthesis; 16, Galactose metabolism; 17, Glycerophospholipid metabolism; 18, Cysteine and methionine metabolism; 19, Purine metabolism). The purple square represents different metabolites in cerebral cortex; the blue circle represents different metabolites in medulla. Black font means intermediate products between differential metabolites; red means difference metabolites between control and GML group