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SD乳鼠大脑皮层神经细胞凋亡的检测

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摘要 目的探讨SD乳鼠大脑皮层神经细胞凋亡的检测方法。方法SD乳鼠5只,断头处死,取脑组织,多聚甲醛/PBS溶液固定,苏木素-伊红染色(hematoxylin and eosin staining,HE)检测大脑皮层的凋亡的情况,使用TUNEL末端标记法(terminal-deoxynucle-otedyl tranaferase mediated nick end labeling,TUNEL)检测大脑皮层组织的细胞凋亡情况,免疫组化测定大脑皮层组织Caspase-3抗体的表达。结果大脑切片HE染色下,大脑皮层均可见少量神经细胞核固缩,计数视野面积0.2mm2下的神经细胞核固缩数是32.2±5.1。TUNEL末端标记法检测大脑皮层组织的细胞凋亡情况,大脑皮层神经细胞凋亡率是(6.1±0.7)%。免疫组化检测大脑皮层Caspase-3阳性细胞计数18.4±7.6,积分光密度(integrated optical density,IOD)是4618±2314,积分面积是16224±8152。结论通过大脑皮层组织切片HE染色与TUNEL末端标记法检测、乳鼠大脑皮层Caspase-3阳性细胞计数相结合,能明确地反映SD乳鼠大脑皮层神经细胞凋亡情况。
出处 《广州医药》 2010年第1期7-9,共3页 Guangzhou Medical Journal
基金 广州市医药卫生科技项目(2007-YB-060) 广州市中医药中西医结合项目(2009A026)
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