Gene expression of neural related genes was identified by semi - quanti - tive rt - pcr analysis and genechip assay . 4 and 10 days after neural induction , gene expression pattern was analysed by genechips , which showed the expression of some neural stem cells and mature neurons specific and related genes , repectively . especially the expression of gabar and glutamate dehydrogenase ( gad ) , which meant the induced cells could be gabanergic neurons 2 .基因芯片检测到未分化escs 、神经干细胞及成熟神经细胞的相关基因，并由半定量rt一pcr证实基因芯片检测未分化细胞表达胚胎干细胞特异基因;诱导后第4天细胞高表达神经干细胞特异性基因;诱导后第10天细胞高表达成熟神经细胞特异性基因，且有gaba受体、谷氨酸脱梭酶( gad )表达，说明诱导后细胞大多为以ba能神经元。
