Results of the KEGG pathway analysis for the differentially expressed mRNAs. (a) The 10 most significant KEGG pathways of the upregulated mRNAs. (b) The 10 significant KEGG pathways of the downregulated mRNAs. The length of the column in the figure represents the enrichment score of the each pathway. ECM, extracellular matrix; TGF, transforming growth factor.