In conclusion, PLP did have the elong ation-promoting activity for hippocampal neurons, the mechanisms underlying its positive effects on neurogenesis needs to be further elucidated.

• 总之，认为PLP致所以具有促海马神经细胞轴突伸展作用，不是由于PLP介导的神经细胞的营养增加，其详细机理有待于进一步探讨。