迄今为止，在这些化学物质之中效果最好的就是神经胶质细胞源性的神经营养因子。

To date, the most potent of these chemicals is glial-cell-line derived neurotrophic factor (GDNF).

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目的：研究胶质细胞源性的神经营养因子（GDNF）对面神经损伤后的促再生作用。

Objective: To study the effect of glial cell line derived neurotrophic factor (GDNF) on facial nerve regeneration after injury.

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目的：探讨胶质细胞源性神经营养因子(GDNF)对脊髓损伤后运动神经元的保护作用。

Objective: to investigate the protective effect of glial cell line derived neurotrophic factor (GDNF) on spinal front corner motor neurons.

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