RT-PCR discove r ed mRNA of NSE(neuron specific enolase),Nurr1,Ptx3,Lmx1b and Tyrosine hydroxy lase(TH)were positive.

• RT-PCR结果显示NSE(neuron specificenolase)、Nurr1、Ptx3、Lmx1b和TH的mRNA均有表达;