Fig. 2
Typical 1H NMR spectra of aqueous extracts from stomach, medulla and cerebral cortex tissues. 1, Low density lipoprotein; 2, very low density lipoprotein; 3, isoleucine; 4, leucine; 5, valine; 6, 2-oxoisovalerate; 7, ethanol; 8, methylmalonate; 9, lactate; 10, threonine, 11, alanine; 12, lysine, 13, γ-aminobutyrate; 14, acetate; 15, N-acetyl aspartate; 16, glutamate; 17, glutamine; 18, methionine; 19, glutathione; 20, pyruvate; 21, oxaloacetate, 22, succinate, 23, α-ketoglutarate; 24, citrate, 25, sarcosine, 26, aspartate; 27, N,N-dimethylglycine; 28, creatine; 29, creatinine, 30, phenylalanine; 31, ethanolamine; 32, choline; 33, phosphocholine; 34, glycerophosphocholine; 35, β-glucose; 36, taurine; 37, myo-inositol; 38, methanol; 39, α-glucose; 40, glycine; 41, glycerol; 42, glycogen; 43, guanidoacetate; 44, serine; 45, hippurate; 46, inosine; 47, adenosine; 48, NAD+; 49, allantoin; 50, uridine diphosphate glucose; 51, uracil; 52, cytidine; 53, uridine; 54, fumarate; 55, tyrosine; 56, histidine; 57, 3-methylhistidine; 58, xanthine; 59, nicotinamide