
1.苏州大学 放射医学与公共卫生学院 苏州 215123
2.苏州大学 附属第一医院肿瘤放疗科 苏州 215006
涂彧,男,1965年7月出生,2002年毕业于苏州大学放射医学系,获放射医学博士学位,副教授,硕士生导师,主要研究方向:放射卫生与防护
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涂彧, 王利利, 周菊英, 等. 电离辐射对大鼠脑组织中稀醇化酶、S-100蛋白表达的影响[J]. 辐射研究与辐射工艺学报, 2007,25(3):185-188.
TU Yu, WANG Lili, ZHOU Juying, et al. Expression of neuro-specific enolase and S-100 protein in sprague-dawle rat brain tissue irradiated by 6MeV electron beam[J]. Journal of Radiation Research and Radiation Processing, 2007,25(3):185-188.
涂彧, 王利利, 周菊英, 等. 电离辐射对大鼠脑组织中稀醇化酶、S-100蛋白表达的影响[J]. 辐射研究与辐射工艺学报, 2007,25(3):185-188. DOI:
TU Yu, WANG Lili, ZHOU Juying, et al. Expression of neuro-specific enolase and S-100 protein in sprague-dawle rat brain tissue irradiated by 6MeV electron beam[J]. Journal of Radiation Research and Radiation Processing, 2007,25(3):185-188. DOI:
观察了超大剂量6MeV电子线照射后大鼠脑组织NSE、S-100蛋白的动态变化。对成熟的 (Sprague-dawle,SD)大鼠用6MeV电子线进行10Gy、20Gy和30Gy 全脑单次照射,应用免疫组织化学法测定大鼠脑损伤后不同时间、不同剂量脑组织中稀醇化酶(Neuro-specific enolase,NSE)、S-100蛋白的相对含量。60只大鼠随机分为对照组和实验组,用6MeV电子线对实验组大鼠进行20Gy全脑单次垂直照射,分别于照射后1d、7 d、14 d和30 d处死大鼠,取其脑组织,用免疫组织化学法测定NSE、S-100蛋白的相对含量,并与对照组进行比较。在上述时间点,脑内海马区S-100和NSE表达有时间规律,照射后7 d S-100蛋白的表达和照射后24h NSE的表达组间存在一定差别。与对照组相比,实验组大鼠脑组织中NSE表达显著下降(,p,<,0.05),S-100表达显著升高(,p,<,0.05)。在照射后7 d,上述各指标变化的幅度为30Gy组,>,20Gy组,>,10Gy组。电离辐射可诱导脑组织中S-100蛋白的表达,同时下调NSE在神经元中的表达,脑组织中S-100和NSE表达水平的变化可作为辐射诱导的急性脑损伤的敏感指标。
The work is to study the expression of NSE and S-100 protein in SD rat brain tissue irradiated by 6MeV electron beam. The whole brain of the Sprague-Dawley rats were irradiated with single dose of 10Gy, 20Gy and 30Gy by 6MeV electron. Immunohistochemical method was used to measure the contents of S-100 and NSE in brain tissue. One-ANOVA was used for analysis. The expression of S-100 and NSE after whole brain irradiation was time-dependent. Compared with that of control group, there was an increase of expression of S-100 D7 after irradiation during the observed time (,p,<,0.05). On the contrary, there was a decrease of NSE 24h after radiation, disappearing nearly at D30 (,p,<,0.05). The indexes above were changed with the different dose levels at 7d after radiation. Radiation can induce the expression of S-100, as well as inhibit the expression of NSE on radiation-induced acute brain injury. The changes of the expression of S-100 and NSE on the brain can act as indexes of acute brain injury induced by radiation.
电离辐射脑损伤NSES-100蛋白
Radiation effectsBrain injuriesNeuro-specific enolase (NSE)S-100 protein
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