伽玛刀照射后猫脑运动区皮质GFAP、S-100蛋白变化的研究

目的研究伽玛刀照射猫脑额叶运动区皮质后该区星形胶质细胞(Astrocyte,AST)中胶质原纤维酸性蛋白(Glial fibrillary acidic protein,GFAP)和S-100蛋白表达的变化,为临床上伽玛刀治疗癫痫等疾病选择合适剂量,减少不良反应,提供敏感监测指标。方法健康家猫45只,随机分为对照组、伽玛刀10Gy和25Gy组,于照射后24小时、7天、14天,对靶区取材,进行GFAP、S-100检测。结果伽玛刀照射猫额叶运动区皮质后14天内GFAP和S-100蛋白均有表达增强,与照射剂量和时间正相关。结论伽玛刀照射猫额叶运动区皮质后14天内GFAP和S-100蛋白均有表达增强,与剂量和时间成正相关。S-100蛋白可能是放射性脑损伤急性期更敏感的指标。

Alterations of GFAP and S - 100 protein in cats' motor cortex after irradiation with gamma knife

Objective To investigate the alterations of expressions of glial fibrillary acidic protein (GFAP) and S-100 proteins in astrocyte (AST) of cat brain prefrontal motor cortex after gamma knife irradiation,and then to choose appropriate dose,decrease adverse reaction,and provide sensitive monitoring indicators for the clinical treatment of epilepsy with gamma knife. Methods 45 health domestic cats were randomly divided into three groups:control group,gamma knife 10Gy irradiation group and 25Gy irradiation grou...