论文部分内容阅读
本实验给大鼠皮下注射红藻氨酸(KA,10mg/kg)诱发癫痫活动,72d后进行深部前梨状皮层(deepPrepyriformcortex,DPC)电点燃刺激(kindlins),该组动物点燃形成加速,或再给予同样剂量KA,其再次诱发的癫痈活动明显加重。c-Fos免疫反应活性(c-Fos-ir)作为神经元兴奋的标志,标绘再次诱发癫痫活动时大鼠脑内细胞信息传递通路,并与对照组,即72d前给予生理盐水(N.S,1ml/kg)动物比较。结果表明,两组动物脑内细胞信息传递通路相同,实验组动物海马(HiPpocampus)内c-fos,c-jun基因表达呈非同步加速;海马邻近脑区内嗅皮层(entorhinalcortex,Ent)激活加速,海马及Ent等部位前脑啡肽原(proenkephalin,PENK)mRNA合成明显增加,提示一次给予KA诱发动物出现短暂癫痫活动后,可使该动物对癫痫刺激敏感性增强长期存在,这可能与脑内c-fos,c-jnn表达非同步加速及快速启动前脑啡肽原基因表达有关。
In this experiment, rats were injected with kainic acid (KA, 10 mg / kg) to induce epilepsy activity. After 72 days, deep prepyridium cortex (DPC) kindling was initiated, And then given the same dose of KA, its again induced epilepsy activity was significantly worse. c-Fos immunoreactivity (c-Fos-ir) was used as a marker of neuronal excitability, and the intracellular signal transduction pathway in the rat brain was re-induced by epilepsy. S, 1 ml / kg) animals. The results showed that the pathways of intracerebral cell information transmission were the same in both groups. The expression of c-fos and c-jun genes in hippocampus of rats in experimental group accelerated unsynchronously. The activation of entorhinalcortex (Ent) in hippocampus was accelerated , Hippocampus and Ent and other parts of the proenkephalin (proenkephalin, PENK) mRNA synthesis significantly increased, suggesting that once KA-induced epileptic animal epileptic activity, the animals can make the sensitivity of epilepsy stimulation long-term existence, which may be related to the brain C-fos, c-jnn expression of non-synchronous acceleration and rapid activation of proenkephalin gene expression before.