Neurotrophic factors (NTFs), a type of active peptides, in addition to their role in neuronal development, can maintain neuronal survival and possess stimulatory effects on neuronal regeneration in adult animals.

• 神经营养因子（NTFs）作为一类肽类活性物质除可促进神经的分化外，还能促进成年动物神经的存活和刺激神经的再生。