Network of differentially expressed transcripts related to steroidogenesis (Network 15: Lipid metabolism, molecular transport, small molecule biochemistry). The bold lines show a direct association among molecules while dashed lines show an indirect association among the molecules. Different shapes of molecules indicate different functions. Significantly up-regulated genes (P < 0.05) by FGF9 in this network were: TFPI, VLDLR, SLC38A2, ACSL4, ARG2, PER2; significantly down-regulated genes (P < 0.05) by FGF9 in this network were: COL14A1, OGN, IGF2, SORT1, AGTR1, GPIIB-IIIA, CYP2C9, STAR, CYP11A1, SIRT3, RIMS1, ARID5B. Frizzled molecules were either down-regulated (SRFP2, FZD2, FZD4) or up-regulated (FZD5).