Representative section of the 2D-DIGE proteome map of basal and after the ω-3 PUFAs supplementation. Proteins were labeled with Cy3 (basal situation) and Cy5 (after the ω-3 PUFAs supplementation). An internal standard comprised of equal amount of proteins from all samples (basal and after the treatment) was labeled with Cy2 and included in all gels. The green spots indicate downregulated proteins, while the red spots indicate upregulated proteins after the ω-3 PUFAs supplementation. Some of the most representative identified proteins that showed significantly altered expression after ω-3 PUFAs supplementation are indicated with arrows and labeled with the respectives protein entry name.