FIG 4. 1H MR spectrum in blood serum analyzed at 400 MHz shows a high concentration of lactate, creatine, and glutamate, whereas ketone body levels are normal. 1 indicates lactate; 2, myo-inositol; 3, glycine; 4, glucose; 4*, mostly glucose; 5, creatinine; 6, creatine; 7, citrate; 8, glutamine; 9, glutamate; 10, acetone; 11, lysine; 12, alanine; 13, butyrate, valerate, malonate, and succinate derivatives; 14, valine; 15, leucine; 16, 
-hydroxybutyrate; 17, 3-(trimethylsilyl)propionate-2,2,3,3-d4; *, traces of glycerol from ultrafiltration.
