Expression of PPARγ in the brain of treatment groups compared to CTRL group. Triplicates of real-time PCR were performed for each sample. Values were normalized with a housekeeping gene, β-actin. Then, treated samples were expressed relative to gene expression of CTRL group. Statistical analysis was performed using a Student’s t test. Values are means ± 1 standard error bar. Values indicated by * show significant differences compared with the CTRL group (P <0.05). CTRL: control, LMO: low menhaden, HMO: high menhaden oil.