L-NNA l0mg/kg, L-NNA 25mg/kg and AG 25mg/kg could reverse the up-regulation of c-Fos expression to normal level and L-NNA l0mg/kg was the most stable.

• NNA25呢/地和AG25mg/kg治疗可使视网膜缺血30rnin再灌注Zh组的c一Fos表达逆转至正常水平，L.；NNA10叱/峪作用最稳定。