摘要
目的在培养的脑片上制作癫癎模型,同时观察其病理学改变。方法用软骨藻酸对培养的大鼠海马脑片进行处理,培养7d后对脑片进行免疫荧光染色、Fluoro-Jade B染色以及溴脱氧尿嘧啶核苷(BrdU)标记。结果软骨藻酸可以诱发培养的海马脑片产生一系列类似癫癎样病理改变,如颗粒细胞扩散[药物处理组(0.105±0.063)mm,对照组(0.057±0.012)mm,t=4.8,P〈0.01],齿状回颗粒层干细胞增殖,同时伴有苔藓细胞和锥体细胞的凋亡和丢失。结论软骨藻酸可以在海马培养的脑片上诱发相似于人颞叶癫疴和癫癎动物模型中的病理学改变,是进行癫癎病理学、药理学和电生理学一个理想替代模型,有广泛的应用前景。
Objective In order to make a epileptic model in organotypie slice culture and to further investigate the epileptic pathology. Methods Immunohistochemistry, Fluoro-Jade B staining and BrdU labeling were carried out in the hippocampal slices with domoic acid treatment after 7 days of culture. Results Domoic acid could induce a series of pathological changes, such as, dispersion of granule cells ( (0. 105 ±0. 063) mm vs (0. 057 ±0. 012) mm, t =4. 8, P 〈0. 01 ), neurogenesis in granular layer and cell loss of pyramidal cell and Mossy cell as well. Conclusions In hippocampal organotypic slices, domoic acid induced such pathological changes as human temporal lobe epilepsy and epileptic animal model. It is an ideal epileptic model for pathological, pharmacological and electronic physiological studies with great applicable prospect.
出处
《中华神经科杂志》
CAS
CSCD
北大核心
2008年第8期547-551,共5页
Chinese Journal of Neurology
基金
基金项目:德国SFB505项目
中国国家自然科学基金资助项目(30670688、30771140)
河南省科技厅国际合作项目(0646630014)
河南省教育厅项目(2007180008)
关键词
癫癎
海马
细胞凋亡
苔藓纤维
海马
锥体细胞
Epilepsy
Hippocampus
Apoptosis
Mossy fibers, hippocampal
Pyramidal cells