Conclusions: Delayed reimplantation of avulsion ventral root can enhance motoneuron survival and regeneration.

结论：前根撕脱延期再植回能促进脊髓前角运动神经元的存活与再生。

Objective to extract the neurotrophic factors with motoneuron neurotrophic activity from the brains of embryo.

目的从人胚胎脑中提取对运动神经元具有生物活性的神经营养因子。

Conclusions: the limb bud extract showed marked motoneuron neurotrophic activities compared with the two controls.

结论：与两对照组相比，胎鼠肢芽提取液呈现了显著的运动神经营养活性。

F waves result from the back fire of the motoneuron activation, which may indirectly reflect the functional state of the motoneurons.

波由运动神经元逆向兴奋引起，故有可能间接评价运动神经元的功能状态。

Results A typical pattern of morphological changes of motoneuron apoptosis in the anterior horn of spinal cord was observed by both TUNEL staining and electron microscopy.

结果坐骨神经切断后TUNEL染色和电镜观察均检测到脊髓前角运动神经元典型的凋亡形态学改变。