Fig. 1

Hierarchical clustering of all the samples based on genes differentially expressed with a q value ≤0.05. Relative levels of gene expression are gray-scale-coded: the lightest gray represents the highest level of expression, and the darkest gray represents the lowest one. Unsupervised clustering identified 2 subsets of samples, one including all mice fed the high-fat diet (n = 6; C22–C27) and the other all mice fed the control diet (n = 6; C16–C21)