| A comparative analysis including eight previous gene expression studies revealed eight prominent genes ( ADH 1 , ATF 3 , CRABP 2 , CYR 61 , DPT , GRIA 2 , IGF 2 , MEST ) identified by at least five different studies , eleven genes ( ALDH 1 , CD 24 , CTGF , DCX , DUSP 1 , FOS , GAGEC 1 , IGFBP 6 , PTGDS , PTGER 3 , TYMS ) reported by four studies , twelve genes ( ABCA , ANXA 1 , APM 2 , CCL 21 , CDKN1A , CRMP 1 , EMP 1 , ESR 1 , FY , MAP3K5 , TGFBR 2 , TIMP 3 ) identified by three studies , and 40 genes reported by two different studies . ^^^ |