OECs were dissociated from olfactory bulb of neonate SD rat and olfactory mucosa of majority SD rat which have the same function of excreting neurotrophic factor. 4.

• 3、取自SD乳鼠嗅球和取自SD成年大鼠嗅粘膜的OECs具有同样的分泌 神经营养因子的作用，其生物学活性大致相同。