Expression pattern and action analysis of genes associated with the responses to chemical stimuli during rat liver regeneration

Figure 3 Expression similarity and time relevance clusters of 107 genes associated with responses to chemical substances during LR. Detection data of Rat Genome 230 2.0 array were analyzed by H-clustering. Red represents up-regulated genes mainly associated with chemotaxis, xenobiotics metabolism, protein transport and apoptosis development; Green represents down- ones mainly associated with transportation and mucosal defense; Black: the genes having insignificant expression changes. The upper and right trees respectively show expression similarity and time series clusters, by which the above genes were classified into 5 and 14 groups.