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用鸡胚背根培养法和新生大鼠皮层神经元原代分散培养法对制备的神经生长因子的生物活性进行了研究。实验结果证实了该神经生长因子确有促进神经细胞生长的活性，这为神经生长因子尽快过渡到临床，提供了实验依据。
The biological activity of the prepared nerve growth factor was studied by using the chicken embryo dorsal root culture method and primary cultured newborn rat cortical neuron dispersion culture method. Experimental results confirmed that the nerve growth factor does promote nerve cell growth activity, which provides an experimental basis for the rapid transition of nerve growth factor to clinical.