Liver fat deposition and mitochondrial dysfunction in morbid obesity: An approach combining metabolomics with liver imaging and histology

Figure 6 Representative spectrum of identifiable metabolites with magnetic resonance spectroscopy in vivo: 0. 9 ppm - terminal carbon (-CH₃); 1.3 ppm - total fatty acyl chains (-CH₂-); 2.0-2.2 ppm - poly-unsaturated fatty acids (-CH₂=CH₂-); 2.6 ppm -Citrate; 3.2 ppm - choline containing compounds; 5.3-5.6 ppm - mono+polyunsaturated fatty acids. Water relative resonance frequency appears at 4.7 ppm as major compound. In this case, water is suppressed for facilitate the visualization of other detectable compounds.