单次6-OHDA (15mg/kg.i.p.)注射后24h,可使雌性成年小鼠颌下腺内儿茶酚胺荧光神经末梢几乎完全消失;同时用 HPLC 测得腺体内去甲肾上腺素(NA)和多巴胺(DA)的含量下降至正常值的3—4%以下。随着受损交感神经末梢再生过程,NA 和 DA 水平...单次6-OHDA (15mg/kg.i.p.)注射后24h,可使雌性成年小鼠颌下腺内儿茶酚胺荧光神经末梢几乎完全消失;同时用 HPLC 测得腺体内去甲肾上腺素(NA)和多巴胺(DA)的含量下降至正常值的3—4%以下。随着受损交感神经末梢再生过程,NA 和 DA 水平有缓慢的恢复。在损毁2周时 NA 和 DA 含量分别达到正常水平的50%和28%,且在4周时完全恢复。在注射6-OHDA 的同时,和在损伤后12h 内给动物注射4次神经节苷脂(每次50mg/kg.i.p.)并在其后的一周內每天注射一次,可使颌下腺内 NA 含量维持在正常水平;在损毁后4h 及损毁前4d 开始施用神经节苷脂,也可不同程度地对抗交感神经末梢损伤,但作用强度不如前者。实验结果提示:(1)神经节苷脂通过减弱6-OHDA 及其代谢产物的损伤效应能够保护交感神经末梢膜,它可能还有促损伤末梢再生性长芽的作用;(2)损伤后神经节苷脂处理得越早,其效果越好。展开更多
NGF is one of the few endogenous neurotrophic factors which have been clarified in structure and gene sequence. The β subunit of NGF (β-NGF) has been proved to be effective in promoting normal development and differ...NGF is one of the few endogenous neurotrophic factors which have been clarified in structure and gene sequence. The β subunit of NGF (β-NGF) has been proved to be effective in promoting normal development and differentiation of certain neurons in both central and peripheral nervous systemst. It has also shown to play展开更多
Brain-derived neurotrophic factor (BDNF) is a small basic protein of 119amino acids, which is synthesized mainly in the central nervous system. It is foundthat BDNF affects various kinds of neurons in the nervous syst...Brain-derived neurotrophic factor (BDNF) is a small basic protein of 119amino acids, which is synthesized mainly in the central nervous system. It is foundthat BDNF affects various kinds of neurons in the nervous system. In vivo and invitro observations show that BDNF can support the survival of various kinds of展开更多
It has been well studied that the reinnervation of partially denervated targets can be formed in the central, peripheral and autonomic nervous systems by collateral sprouting from adjacent intact fibres which have the...It has been well studied that the reinnervation of partially denervated targets can be formed in the central, peripheral and autonomic nervous systems by collateral sprouting from adjacent intact fibres which have the same function.The fact that sympa-thetic nerves have active sprouting ability has been proved long ago. In recent years,展开更多
文摘单次6-OHDA (15mg/kg.i.p.)注射后24h,可使雌性成年小鼠颌下腺内儿茶酚胺荧光神经末梢几乎完全消失;同时用 HPLC 测得腺体内去甲肾上腺素(NA)和多巴胺(DA)的含量下降至正常值的3—4%以下。随着受损交感神经末梢再生过程,NA 和 DA 水平有缓慢的恢复。在损毁2周时 NA 和 DA 含量分别达到正常水平的50%和28%,且在4周时完全恢复。在注射6-OHDA 的同时,和在损伤后12h 内给动物注射4次神经节苷脂(每次50mg/kg.i.p.)并在其后的一周內每天注射一次,可使颌下腺内 NA 含量维持在正常水平;在损毁后4h 及损毁前4d 开始施用神经节苷脂,也可不同程度地对抗交感神经末梢损伤,但作用强度不如前者。实验结果提示:(1)神经节苷脂通过减弱6-OHDA 及其代谢产物的损伤效应能够保护交感神经末梢膜,它可能还有促损伤末梢再生性长芽的作用;(2)损伤后神经节苷脂处理得越早,其效果越好。
文摘NGF is one of the few endogenous neurotrophic factors which have been clarified in structure and gene sequence. The β subunit of NGF (β-NGF) has been proved to be effective in promoting normal development and differentiation of certain neurons in both central and peripheral nervous systemst. It has also shown to play
基金Project supported by the National Natural Science Foundation of China.
文摘Brain-derived neurotrophic factor (BDNF) is a small basic protein of 119amino acids, which is synthesized mainly in the central nervous system. It is foundthat BDNF affects various kinds of neurons in the nervous system. In vivo and invitro observations show that BDNF can support the survival of various kinds of
文摘It has been well studied that the reinnervation of partially denervated targets can be formed in the central, peripheral and autonomic nervous systems by collateral sprouting from adjacent intact fibres which have the same function.The fact that sympa-thetic nerves have active sprouting ability has been proved long ago. In recent years,
