Expression ratio of genes in DHAO group. Supplementation of DHAO increased gene expression of brain tumors FABP7 of rats relative to SFO group (p < 0.05). Log2 scale of expression ratios and singnificancy were calculated by REST, using beta-actin and GAPDH as reference genes and tumor samples of SFO group as control group and amplification efficiencies were considered in the analysis. Each value is mean ± S.E. of eighteen determination performed on separate animals.