Figure 5.

Relative level of spermatogenic specific genes expression in recipient rat testicular tissue after BMSCs transplantation detected by real time PCR. Vasa, dazl, smad1 and stella expression were detected 2 weeks post-transplantation and increased to a relatively high level at 4 to 8 weeks. C-kit and GCNF were expressed at relatively high levels immediately after injection, and expression levels decreased to almost zero within 2 weeks. GCNF expression increased gradually at 4 weeks post-transplantation, while expression of c-kit remained at a relatively low level.