For the most part, the fish oil diets prevented (long term) and reversed (adjuvant) tumor- and chemotherapy-associated increases in C/EBPδ, C/EBPα and PPARγ expression in the gastrocnemius muscle, as the expression of these transcription factors were not different from the reference group and were significantly lower compared with their respective tumor-bearing and chemotherapy treated cycle control diet groups (p<0.005; Fig 4A). This evidence concerns the gene CEBPA and neoplasm.