Expression of genes in liver. Mice were killed at 15 wk after 4 h fasting. Liver was removed and gene expression levels of acyl-CoA oxidase (ACO), fatty acid synthase (FAS) and sterol regulatory element binding protein-1c (SREBP-1c) (A, B, C) were measured by real time RT-PCR. Gene expression levels are indicated as relative levels to those of the B(-) group. Data is shown as mean ± SE (n = 3 - 4). Significance of difference is indicated as different alphabet: p < 0.05.