Figure 4.

Electrophysiologic measurement indicates enhanced axonal regeneration in MPCs-MIX⁺ treated rats. Myogenic cells expressing one of the four NTFs or GFP or a mixture of myogenic cells expressing all four NTFs, or PBS were injected into sciatic nerve crush site. Four days later, nerve conduction was tested by electromyography. Compound muscle action potential presented as a ratio between the injured and uninjured hind limbs. A significant enhanced axonal regeneration was observed only in the MPCs- MIX⁺ treated group. (n= 3, means ± SEM, ^**p<0.01 as determined by student t- test).