摘要
目的观察大鼠戊四氮癫痫模型海马齿状回神经元凋亡情况及凋亡诱导因子(apoptosis-inducing factor,AIF)、胱天蛋白酶(Caspase)-3阳性表达的意义。方法将12只Wistar大鼠随机分为模型组和空白对照组,每组6只。模型组大鼠腹腔注射戊四氮,空白对照组大鼠腹腔注射生理盐水。造模成功后观察模型组与空白对照组大鼠海马齿状回组织切片尼氏染色及AIF、Caspase-3蛋白表达的情况。结果空白对照组和模型组大鼠海马齿状回区尼氏染色400倍镜下单个视野神经细胞计数分别为(99.76±11.89)、(78.69±10.94)个,Caspase-3灰度值分别为154.81±16.06、131.65±16.81,AIF蛋白灰度值分别为173.09±9.57、158.34±6.33,组间比较差异均有统计学意义(P<0.05)。结论依赖Caspase的Caspase-3和不依赖Caspase的AIF两种凋亡途径均参与了癫痫导致的神经细胞凋亡过程。
Objective To observe the apoptosis of hippocampal dentate gyrus in rats with pentrolone model of epilepsy, and detect the significance of apoptosis-inducing factor （AIF） and Caspase-3 joint expression. Methods Twelve Wistar rats were randomly divided into model group and control group with 6 in each. Intraperitoneal injection of pentrolone was carried out for rats in the model group, while physiological saline was injected in rats of the control group. After the model was successfully established, we observed the Nissl staining results of hippocampus dentate gyrus tissue in the rats as well as the expression of AIF and Caspase-3 protein in both groups. Results The single visual nerve cell counts of the control group and the model group under 400-times magnification were respectively 99.76±11.89 and 78.69±10.94; Caspase-3 gray values of the two groups were respectively 154.81±16.06 and 131.65±16.81; and AIF protein gray values were respectively 173.09±9.57 and 158.34±6.33. All the above differences were statistically significant （P〈0.05）. Conclusion The two apoptotic pathways through Caspase-3 dependent on Caspase and AIF independent of Caspase are both involved in the neuronal apoptosis induced by epilepsy.
出处
《华西医学》
CAS
2017年第4期550-553,共4页
West China Medical Journal
