Representative 2-DE gels showing total and carbonylated protein profiles of liver detected in HFHS diets. Coomassie-stained 2-DE gels from (A) HFHS-CONTROL, (B) -FOM, (C) -GSE, and (D) -FOM&GSE. FTSC-stained 2-DE gels from (E) HFHS-CONTROL, (F) -FOM, (G) -GSE, and (H) -FOM&GSE. Numbered protein spots represent carbonylated proteins confidently identified, and they are listed in Table 3. Images are representatives of three independent labelling experiments performed in triplicates. HFHS: high-fat and high-sucrose diet; GSE: grape seed polyphenols extract; FOM: fish oil mixture.